46 results on '"Pereira APA"'
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2. Assessment of memory in rehabilitation counseling.
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Pereira APA
- Abstract
One important area of assessment in rehabilitation is cognitive function, because this information is critical to rehabilitation service planning in such areas as training, living arrangements, and job accommodations. The development of neuropsychology and the study of human memory have demonstrated that memory deficits are a risk associated with a number of different disabling conditions. The present paper focuses on memory assessment in vocational rehabilitation for clients who may not have diagnosed neurological disorders but may be at risk for significant memory deficits. More specifically, studies of memory disorders in individuals with schizophrenia, substance abuse disorders, and mental retardation are presented. A model of assessment is suggested, and major memory assessment tools are discussed that may be useful in rehabilitation settings. [ABSTRACT FROM AUTHOR]
- Published
- 2007
3. Potential of biochar to restoration of microbial biomass and enzymatic activity in a highly degraded semiarid soil.
- Author
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Barbosa FLA, Santos JMR, Mota JCA, Costa MCG, Araujo ASF, Garcia KGV, Almeida MS, Nascimento ÍV, Medeiros EV, Ferreira OP, Souza Filho AG, Fregolente LG, Sousa HHF, Borges WL, and Pereira APA
- Subjects
- Nitrogen metabolism, Sewage microbiology, Anacardium, Charcoal chemistry, Soil Microbiology, Soil chemistry, Biomass, Carbon metabolism
- Abstract
Biochar is an effective material for enhancing soil ecosystem services. However, the specific impacts of biochar on microbial indicators, particularly in degraded soils, remain poorly understood. This study aimed to evaluate the effects of biochar produced from cashew residues and sewage sludge, in a highly degraded soil, on microbial indicators. We analyzed soil chemical composition and microbial biomass C and N, enzyme activity, and stoichiometry. Cashew biochar increased soil respiration, indicating a higher availability of C to microorganisms compared to sewage sludge biochar and a better adaptation of soil microbial communities to C-rich organic material obtained from a native plant. Although the biochar differentially impacted microbial biomass C, both significantly increased N in the microbial biomass. Arylsulphatase activity did not respond to biochar application, while β-glucosidase, urease, and phosphatases showed significant changes with biochar treatments. Importantly, stoichiometry and vector analysis revealed that both types of biochar increased P limitation for soil microbes. Conversely, both biochar alleviated C and N limitations for the soil microbes. Thus, biochar applications in highly degraded soils should be supplemented with external P sources to maintain soil functions, mainly for cashew residues. Our results provide evidence that biochar can restore soil biological properties and enhance the availability of C and N to microorganisms. These findings have significant implications for restoration practices in degraded lands of semiarid regions., (© 2024. The Author(s).)
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- 2024
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4. Impact of mixed-species forest plantations on soil mycobiota community structure and diversity in the Congolese coastal plains.
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Koutika LS, Pereira APA, Fiore A, Tabacchioni S, Costanzo M, Di Gregorio L, and Bevivino A
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- Mycobiome, Soil chemistry, Congo, Phylogeny, Acacia microbiology, Fungi classification, Fungi genetics, Fungi isolation & purification, Eucalyptus microbiology, Nitrogen analysis, Soil Microbiology, Forests, Biodiversity
- Abstract
Mixed tree plantations containing nitrogen (N2)-fixing species have the potential to enhance C sequestration, soil biodiversity and forest productivity. Here, we investigated the impact of Acacia mangium and Eucalyptus urophilla x E. grandis mixed plantations in the Congolese coastal plains on soil mycobiota community structure and diversity by ITS metabarcoding sequencing and bioinformatic analysis. Higher Faith's phylogenetic diversity and Evenness' was found in Eucalyptus monoculture relative to stands containing Acacia. Differences in beta diversity were found among Eucalyptus and Acacia monoculture, and mixed-species stands highlight the effects of plant species on fungal community structure. Ascomycota, Basidiomycota and Rozellomycota phyla were predominant in all stands, with both Dikarya (Ascomycota and Basidiomycota) accounting for more than 70% in all stands. Correlation analysis revealed that sulfur (S) was the most correlated soil attribute with the three predominant phyla but also with Mucoromycota and Calcarisporiellomycota phyla, although mostly negatively correlated (4 out of 5). Phosphorus was mostly positively correlated to soil attributes (3 out of 4) and nitrogen was correlated twice, positively and negatively. Distance-based redundancy analysis revealed a positive correlation of nitrogen (p-value = 0.0019, contribution = 22%) and phosphorus (p-value = 0.0017, contribution = 19%) with soil mycobiota. A high prevalence of generalists (28% to 38%) than specialists (9% to 24%) were found among the different sites. In stands containing Acacia (pure and mixed species) the soil mycobiota harbor the prevalence of generalist strategies with the potential to withstand environmental stresses and utilize a higher number of resources against specialists in Eucalyptus stands. Stronger positive correlation between soil attributes and main fungal taxa, higher generalists' strategies and lower Faith's phylogenetic diversity and Evenness were reported in stands containing Acacia. This highlights the potential of mixed-species in preserving community stability following environmental disturbances and increasing the number of resources confirming their important ecological role in boosting the resilience of the forest ecosystems to climate and land-use (plant species as shown by PCA analysis) changes., Competing Interests: The authors have read the journal’s policy and have the following competing interests: the authors received funding from Moët Hennessy, France. This does not alter our adherence to PLOS ONE policies on sharing data and materials., (Copyright: © 2024 Koutika et al. This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.)
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- 2024
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5. The Consumption of the Fibrous Fraction of Solanum lycocarpum St. Hil. Does Not Preserve the Intestinal Mucosa in TNBS-Induced Rats.
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Moya AMTM, Alexandrino TD, Morari J, Reguengo LM, Velloso LA, Leal RF, Junior SB, Pereira APA, Pastore GM, Bicas JL, and Cazarin CBB
- Abstract
Solanum lycocarpum St. Hil. is considered a natural anti-inflammatory. In traditional medicine, it is used to reduce cholesterol levels in the treatment of obesity. Foods capable of conferring a protective and nutritious effect have been used to prevent or attenuate the clinical symptoms of inflammatory bowel diseases. Ulcerative colitis is a multifactorial inflammatory bowel disease. This study investigated the impact of the consumption of the fibrous fraction (FF) and resistant starch (RS) of fruta-do-lobo in an experimental model of colitis induced with the use 2,4,6-trinitrobenzene sulphonic acid (TNBS) in rats. The different colitis groups all experienced decreased weight gain, which could be linked to the inflammatory process ( p = 0.603). Additionally, the experimental model led to increased oxidative stress, higher levels of pro-inflammatory cytokines, and the elevated gene expression of these cytokines. Despite this, consuming the fibrous fraction of fruta-do-lobo (RS and FF) did not appear to protect the animals against the inflammatory process. Regarding the expression of TNF-α, only the group treated with the drug mesalamine had a reduced serum level of this inflammatory marker ( p = 0.03). Our results showed that the diet containing RS and FF did not protect the intestinal mucosa against TNBS inflammation. New studies on the variation in the time of consumption or the supplemented dose of fruta-do-lobo fibers could help to elucidate their effects in protecting the mucosa.
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- 2024
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6. Unearthing the power of microbes as plant microbiome for sustainable agriculture.
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Mukherjee A, Singh BN, Kaur S, Sharma M, Ferreira de Araújo AS, Pereira APA, Morya R, Puopolo G, Melo VMM, and Verma JP
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- Plant Roots microbiology, Symbiosis, Fungi metabolism, Fungi physiology, Plant Growth Regulators metabolism, Soil Microbiology, Microbiota physiology, Plants microbiology, Agriculture methods, Plant Development, Bacteria metabolism, Bacteria classification
- Abstract
In recent years, research into the complex interactions and crosstalk between plants and their associated microbiota, collectively known as the plant microbiome has revealed the pivotal role of microbial communities for promoting plant growth and health. Plants have evolved intricate relationships with a diverse array of microorganisms inhabiting their roots, leaves, and other plant tissues. This microbiota mainly includes bacteria, archaea, fungi, protozoans, and viruses, forming a dynamic and interconnected network within and around the plant. Through mutualistic or cooperative interactions, these microbes contribute to various aspects of plant health and development. The direct mechanisms of the plant microbiome include the enhancement of plant growth and development through nutrient acquisition. Microbes have the ability to solubilize essential minerals, fix atmospheric nitrogen, and convert organic matter into accessible forms, thereby augmenting the nutrient pool available to the plant. Additionally, the microbiome helps plants to withstand biotic and abiotic stresses, such as pathogen attacks and adverse environmental conditions, by priming the plant's immune responses, antagonizing phytopathogens, and improving stress tolerance. Furthermore, the plant microbiome plays a vital role in phytohormone regulation, facilitating hormonal balance within the plant. This regulation influences various growth processes, including root development, flowering, and fruiting. Microbial communities can also produce secondary metabolites, which directly or indirectly promote plant growth, development, and health. Understanding the functional potential of the plant microbiome has led to innovative agricultural practices, such as microbiome-based biofertilizers and biopesticides, which harness the power of beneficial microorganisms to enhance crop yields while reducing the dependency on chemical inputs. In the present review, we discuss and highlight research gaps regarding the plant microbiome and how the plant microbiome can be used as a source of single and synthetic bioinoculants for plant growth and health., Competing Interests: Declaration of Competing Interest There is no conflict of interest for this review proposal among all authors., (Copyright © 2024 Elsevier GmbH. All rights reserved.)
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- 2024
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7. Grazing exclusion-induced changes in soil fungal communities in a highly desertified Brazilian dryland.
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Silva DF, Mazza Rodrigues JL, Erikson C, Silva AMM, Huang L, Araujo VLVP, Matteoli FP, Mendes LW, Araujo ASF, Pereira APA, Melo VMM, and Cardoso EJBN
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- Brazil, Climate Change, Desert Climate, Biodiversity, DNA, Fungal genetics, Seasons, Ecosystem, Soil Microbiology, Mycorrhizae classification, Mycorrhizae genetics, Mycorrhizae physiology, Mycobiome, Fungi classification, Fungi genetics, Fungi isolation & purification, Soil chemistry
- Abstract
Soil desertification poses a critical ecological challenge in arid and semiarid climates worldwide, leading to decreased soil productivity due to the disruption of essential microbial community processes. Fungi, as one of the most important soil microbial communities, play a crucial role in enhancing nutrient and water uptake by plants through mycorrhizal associations. However, the impact of overgrazing-induced desertification on fungal community structure, particularly in the Caatinga biome of semiarid regions, remains unclear. In this study, we assessed the changes in both the total fungal community and the arbuscular mycorrhizal fungal community (AMF) across 1. Natural vegetation (native), 2. Grazing exclusion (20 years) (restored), and 3. affected by overgrazing-induced degradation (degraded) scenarios. Our assessment, conducted during both the dry and rainy seasons in Irauçuba, Ceará, utilized Internal Transcribed Spacer (ITS) gene sequencing via Illumina® platform. Our findings highlighted the significant roles of the AMF families Glomeraceae (∼71% of the total sequences) and Acaulosporaceae (∼14% of the total sequences) as potential key taxa in mitigating climate change within dryland areas. Moreover, we identified the orders Pleosporales (∼35% of the total sequences) and Capnodiales (∼21% of the total sequences) as the most abundant soil fungal communities in the Caatinga biome. The structure of the total fungal community differed when comparing native and restored areas to degraded areas. Total fungal communities from native and restored areas clustered together, suggesting that grazing exclusion has the potential to improve soil properties and recover fungal community structure amid global climate change challenges., Competing Interests: Declaration of Competing Interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper, (Copyright © 2024 Elsevier GmbH. All rights reserved.)
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- 2024
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8. Neuropsychological profile in tuberous sclerosis complex: a study of clinical and cognitive variables in a cohort from Brazil.
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Cardozo LFM, Schwind MR, Pereira APA, Dufner-Almeida LG, Haddad LA, Bruck I, and Antoniuk SA
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- Humans, Male, Female, Child, Adolescent, Adult, Young Adult, Brazil, Child, Preschool, Intellectual Disability etiology, Cognition physiology, Epilepsy psychology, Autism Spectrum Disorder psychology, Cohort Studies, Cognition Disorders etiology, Tuberous Sclerosis complications, Tuberous Sclerosis psychology, Neuropsychological Tests
- Abstract
Background: Tuberous sclerosis complex (TSC) is an autosomal dominant genetic disorder with a wide clinical, cognitive, and behavioral expressivity., Objective: To assess the neuropsychological profile of individuals clinically diagnosed with TSC and the factors that could significantly impact their cognitive development., Methods: A total of 62 individuals with ages ranging from 3 to 38 years were followed up in a tertiary attention hospital in Southern Brazil, and they were assessed using a standard battery and the Vineland Adaptive Behavior Scales, when intellectual disability was observed., Results: History of epilepsy was found in 56 participants (90.3%), and 31 (50%) presented an intellectual disability. Among the other half of TSC individuals without intellectual disability, 8 (12.9%) presented borderline classification, 20 (32.2%) presented average scores, and 3 (4.8%) were above average. In total, 17 participants (27.4%) fulfilled the diagnostic criteria for autism spectrum disorder. The results of the multiple linear regression analysis suggested that seizures, age at diagnosis, visual perception, and general attention significantly impact cognitive performance indexes., Conclusion: The present study suggests that the occurrence of epileptic seizures and older age at diagnosis contribute to higher impairment in the domains of cognitive development, underlining the importance of early diagnosis and the prevention of epileptic seizures or their rapid control. The development of attentional skills, visual perception, and executive functions must be followed up., Competing Interests: The authors have no conflict of interest to declare., (The Author(s). This is an open access article published by Thieme under the terms of the Creative Commons Attribution 4.0 International License, permitting copying and reproduction so long as the original work is given appropriate credit (https://creativecommons.org/licenses/by/4.0/).)
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- 2024
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9. Prospective memory instruments for the assessment of children and adolescents: a systematic review.
- Author
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Signori VA, Watanabe TM, and de Pereira APA
- Abstract
Background: Prospective memory is the ability to engage in an intention to be performed in the future. The main objective of this study was to identify instruments that assess both time-based and event-based prospective memory in children and adolescents and that have the potential to be clinically applicable., Method: Three databases (PubMed, Scopus, and PsycINFO) were searched to identify existing PM measures in original articles published until 2022. Literature searches were conducted using the following terms: (prospective memor* OR memor* for intentions) AND (neuropsychological assessment) AND (test* OR instrument* OR questionnaire* OR task*) AND (psychometric properties) AND (child* OR adolescen*). Relevant studies identified in the reference lists were also included in the review., Results: Ten instruments were identified and classified into three categories: (a) test batteries, (b) experimental procedures, and (c) questionnaires. All the instruments identified were described concerning their content and the psychometric properties available. Some of the instruments presented empirical evidence regarding validity and reliability, but no one provided normative data., Conclusion: Besides the recent progress regarding studies publishing the development of a variety of novel measures, there are still many limitations surrounding the assessment of PM in the youth population because of the yet incipient psychometric properties presented by the majority of the PM instruments. Recommendations for a gold-standard PM instrument for assessing children and adolescents are provided., (© 2024. The Author(s).)
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- 2024
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10. From desertification to restoration in the Brazilian semiarid region: Unveiling the potential of land restoration on soil microbial properties.
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Araujo ASF, de Medeiros EV, da Costa DP, Pereira APA, and Mendes LW
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- Humans, Soil Microbiology, Brazil, Forests, China, Soil, Conservation of Natural Resources
- Abstract
Land desertification poses a significant challenge in the Brazilian semiarid region, encompassing a substantial portion of the country. Within this region, the detrimental effects of human activities, particularly unsuitable anthropic actions, have resulted in diminished vegetation cover and an accelerated rate of soil erosion. Notably, practices such as overgrazing and the conversion of native forests into pasturelands have played a pivotal role in exacerbating the process of land desertification. Ultimately, land desertification results in significant losses of soil organic matter and microbial diversity. To address this pressing issue and contribute to the existing literature, various land restoration practices, such as grazing exclusion, cover crops, and terracing, have been implemented in the Brazilian semiarid. These practices have shown promising results in terms of enhancing soil fertility and restoring microbial properties. Nonetheless, their effectiveness in improving soil microbial properties in the Brazilian semiarid region remains a subject of ongoing study. Recent advances in molecular techniques have improved our understanding of microbial communities in lands undergoing desertification and restoration. In this review, we focus on assessing the effectiveness of these restoration practices in revitalizing soil microbial properties, with a particular emphasis on the soil microbiome and its functions. Through a critical assessment of the impact of these practices on soil microbial properties, our research aims to provide valuable insights that can help mitigate the adverse effects of desertification and promote sustainable development in this ecologically sensitive region., Competing Interests: Declaration of competing interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper., (Copyright © 2023 Elsevier Ltd. All rights reserved.)
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- 2024
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11. Biochar as a carbonaceous material to enhance soil quality in drylands ecosystems: A review.
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Nascimento ÍVD, Fregolente LG, Pereira APA, Nascimento CDVD, Mota JCA, Ferreira OP, Sousa HHF, Silva DGGD, Simões LR, Souza Filho AG, and Costa MCG
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- Humans, Charcoal, Ecosystem, Soil, Carbon
- Abstract
Drylands are fragile environments that should be carefully managed to improve their quality and functions to achieve sustainable development. Their major problems involve low availability of nutrients and soil organic carbon content. Biochar effect on soil is a joint response of micro to nano sized biochar and soil characteristics. In this review, we attempt to carry out a critical analysis of biochar application to enhance dryland soil quality. Correlating the effects identified from its soil application, we explored the subjects that remains open in the literature. The relation of composition-structure-properties of biochar vary among pyrolysis parameters and biomass sources. Limitations in soil physical quality in drylands, such as low water-holding capacity, can be alleviated by applying biochar at a rate of 10 Mg ha
-1 also resulting in beneficial effects on soil aggregation, improved soil porosity, and reduced bulk density. Biochar addition can contribute to the rehabilitation of saline soils, by releasing cations able to displaces sodium in the exchange complex. However, the recovery process of salt-affected soils might be accelerated by the association of biochar with another soil conditioners. This is a promising strategy especially considering the biochar alkalinity and variability in nutrients bioavailability to improve soil fertilization. Further, while higher biochar application rate (>20 Mg ha-1 ) might change soil C dynamics, a combination of biochar and nitrogen fertilizer can increase microbial biomass carbon in dryland systems. Other aspect of biochar soil application is the economic viability of scale-up production, which is mainly associate to pyrolysis process being biochar production the costliest stage. Nevertheless, the supplying of feedstock might also represent a great input on biochar final costs. Therefore, biochar-based technology is a big opportunity to improve fragile environments such as drylands, integrating sustainable technologies with regional development. Considering the specificity of application area, it might be a model of sustainable agricultural practices protecting the environment in a bioeconomic perspective., Competing Interests: Declaration of competing interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper., (Copyright © 2023 Elsevier Inc. All rights reserved.)- Published
- 2023
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12. Exploring the diversity and composition of soil microbial communities in different soybean-maize management systems.
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Araujo FF, Salvador GLO, Lupatini GC, Pereira APA, Costa RM, de Aviz RO, de Alcantara Neto F, Mendes LW, and Araujo ASF
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- Zea mays microbiology, Glycine max, Soil Microbiology, Soil chemistry, Microbiota
- Abstract
Soybean-maize are cultivated in different management systems, such as no-tillage and pastures, which presents potential to add organic residues, and it can potentially impacts the soil microbial community present in these systems. Thus, this study aimed to examine the effects of different soybean-maize management practices on the diversity and composition of soil microbial communities. Specifically, 16 S rRNA amplicon sequencing was used to investigate whether the use of pasture species in a fallowing system influences microbial communities in a soybean-maize rotation system, as compared to conventional tillage and no-tillage systems. The results indicate that the inclusion of the pasture species Urochloa brizantha in soybean-maize management systems leads to distinct responses within the soil microbial community. It was found that different soybean-maize management systems, particularly those with U. brizantha, affected the microbial community, likely due to the management applied to this pasture species. The system with 3 years of fallowing before soybean-maize showed the lowest microbial richness (∼2000 operational taxonomic units) and diversity index (∼6.0). Proteobacteria (∼30%), Acidobacteria (∼15%), and Verrucomicrobia (∼10%) were found to be the most abundant phyla in the soil under tropical native vegetation, while soils under cropland had an increased abundance of Firmicutes (∼30% to ∼50%) and Actinobacteria (∼30% to ∼35%). To summarize, this study identified the impacts of various soybean-maize management practices on the soil microbial community and emphasized the advantages of adding U. brizantha as a fallow species., Competing Interests: Declaration of Competing Interest The authors declare that they have no competing financial interests., (Copyright © 2023 Elsevier GmbH. All rights reserved.)
- Published
- 2023
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13. Short-term responses of plant growth-promoting bacterial community to the herbicides imazethapyr and flumioxazin.
- Author
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Araujo ASF, Pertile M, Costa RM, Costa MKL, de Aviz RO, Mendes LW, de Medeiros EV, da Costa DP, Melo VMM, and Pereira APA
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- RNA, Ribosomal, 16S genetics, Soil, Bacteria genetics, Glycine max, Herbicides analysis
- Abstract
Imazethapyr and flumioxazin are widely recommended herbicides for soybean fields due to their broad-spectrum effects. However, although both herbicides present low persistence, their potential impact on the community of plant growth-promoting bacteria (PGPB) is unclear. To address this gap, this study assessed the short-term effect of imazethapyr, flumioxazin, and their mixture on the PGPB community. Soil samples from soybean fields were treated with these herbicides and incubated for 60 days. We extracted soil DNA at 0, 15, 30, and 60 days and sequenced the 16S rRNA gene. In general, the herbicides presented temporary and short-term effects on PGPB. The relative abundance of Bradyrhizobium increased, while Sphingomonas decreased on the 30th day with the application of all herbicides. Both herbicides increased the potential function of nitrogen fixation at 15th days and decreased at 30th and 60th days of incubation. The proportions of generalists were similar (∼42%) comparing each herbicide and the control, while the proportion of specialists increased (varying from 24.9% to 27.6%) with the application of herbicides. Imazethapyr, flumioxazin and their mixture did not change the complexity and interactions of the PGPB network. In conclusion, this study showed that, in the short term, the application of imazethapyr, flumioxazin, and their mixture, at the recommended field rates, does not negatively affect the community of plant growth-promoting bacteria., Competing Interests: Declaration of competing interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper., (Copyright © 2023 Elsevier Ltd. All rights reserved.)
- Published
- 2023
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14. Editorial: Microbial co-cultures: a new era of synthetic biology and metabolic engineering.
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Jaiswal DK, Verma JP, Belwal T, Pereira APA, and Ade AB
- Abstract
Competing Interests: The authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest.
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- 2023
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15. Potential of growth-promoting bacteria in maize (Zea mays L.) varies according to soil moisture.
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Araújo VLVP, Fracetto GGM, Silva AMM, Pereira APA, Freitas CCG, Barros FMDR, Santana MC, Feiler HP, Matteoli FP, Fracetto FJC, and Cardoso EJBN
- Subjects
- Zea mays microbiology, Plant Roots microbiology, Soil, Streptomyces
- Abstract
Climate change has caused irregularities in water distribution, which affect the soil drying-wetting cycle and the development of economically important agricultural crops. Therefore, the use of plant growth-promoting bacteria (PGPB) emerges as an efficient strategy to mitigate negative impacts on crop yield. We hypothesized that the use of PGPB (in consortium or not) had potential to promote maize (Zea mays L.) growth under a soil moisture gradient in both non-sterile and sterile soils. Thirty PGPB strains were characterized for direct plant growth-promotion and drought tolerance induction mechanisms and were used in two independent experiments. Four soil water contents were used to simulate a severe drought (30% of field capacity [FC]), moderate drought (50% of FC), no drought (80% of FC) and, finally, a water gradient comprising the three mentioned soil water contents (80%, 50%, and 30% of FC). Two bacteria strains (BS28-7 Arthrobacter sp. and BS43 Streptomyces alboflavus), in addition to three consortia (BC2, BC4 and BCV) stood out in maize growth performance in experiment 1 and were used in experiment 2. Overall, under moderate drought, inoculation with BS43 surpassed the control treatment in root dry mass and nutrient uptake. Considering the water gradient treatment (80-50-30% of FC), the greatest total biomass was found in the uninoculated treatment when compared to BS28-7, BC2, and BCV. The greatest development of Z. mays L. was only observed under constant water stress conditions in the presence of PGPB. This is the first report that demonstrated the negative effect of individual inoculation of Arthrobacter sp. and the consortium of this strain with Streptomyces alboflavus on the growth of Z. mays L. based on a soil moisture gradient; however, future studies are needed for further validation., (Copyright © 2023 Elsevier GmbH. All rights reserved.)
- Published
- 2023
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16. Can arbuscular mycorrhizal fungi and rhizobacteria facilitate 33 P uptake in maize plants under water stress?
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Silva AMM, Jones DL, Chadwick DR, Qi X, Cotta SR, Araújo VLVP, Matteoli FP, Lacerda-Júnior GV, Pereira APA, Fernandes-Júnior PI, and Cardoso EJBN
- Subjects
- Zea mays microbiology, Ecosystem, Plants, Soil, Bacteria, Mycorrhizae
- Abstract
Arbuscular mycorrhizal fungi (AMF) and plant growth-promoting rhizobacteria (PGPR) are able to provide key ecosystem services, protecting plants against biotic and abiotic stresses. Here, we hypothesized that a combination of AMF (Rhizophagus clarus) and PGPR (Bacillus sp.) could enhance
33 P uptake in maize plants under soil water stress. A microcosm experiment using mesh exclusion and a radiolabeled phosphorus tracer (33 P) was installed using three types of inoculation: i) only AMF, ii) only PGPR, and iii) a consortium of AMF and PGPR, alongside a control treatment without inoculation. For all treatments, a gradient of three water-holding capacities (WHC) was considered i) 30% (severe drought), ii) 50% (moderate drought), and iii) 80% (optimal condition, no water stress). In severe drought conditions, AMF root colonization of dual-inoculated plants was significantly lower compared to individual inoculation of the AMF, whilst33 P uptake by dual-inoculated plants or plants inoculated with bacteria was 2.4-fold greater than the uninoculated treatment. Under moderate drought conditions the use of AMF promoted the highest33 P uptake by plants, increasing it by 2.1-fold, when compared to the uninoculated treatment. Without drought stress, AMF showed the lowest33 P uptake and, overall, plant P acquisition was lower for all inoculation types when compared to the severe and moderate drought treatments. The total shoot P content was modulated by the water-holding capacity and inoculation type, with the lowest values observed under severe drought and the highest values under moderate drought. The highest soil electrical conductivity (EC) values were found under severe drought in AMF-inoculated plants and the lowest EC for no drought in single or dual-inoculated plants. Furthermore, water-holding capacity influenced the total soil bacterial and mycorrhizal abundance over time, with the highest abundances being found under severe and moderate drought. This study demonstrates that the positive influence of microbial inoculation on33 P uptake by plants varied with soil water gradient. Furthermore, under severe stress conditions, AMF invested more in the production of hyphae, vesicles and spore production, indicating a significant carbon drain from the host plant as evidenced by the lack of translation of increased33 P uptake into biomass. Therefore, under severe drought the use of bacteria or dual-inoculation seems to be more effective than individual AMF inoculation in terms of33 P uptake by plants, while under moderate drought, the use of AMF stood out., Competing Interests: Conflict of interest The authors declare that they have no conflict of interest., (Crown Copyright © 2023. Published by Elsevier GmbH. All rights reserved.)- Published
- 2023
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17. Domestication of Lima Bean (Phaseolus lunatus) Changes the Microbial Communities in the Rhizosphere.
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da Silva JL, Mendes LW, Rocha SMB, Antunes JEL, Oliveira LMS, Melo VMM, Oliveira FAS, Pereira APA, Costa GDN, da Silva VB, Gomes RLF, de Alcantara Neto F, Lopes ACA, and Araujo ASF
- Subjects
- Plant Roots microbiology, Rhizosphere, Domestication, RNA, Ribosomal, 16S genetics, Proteobacteria genetics, Plants, Acidobacteria genetics, Soil chemistry, Soil Microbiology, Phaseolus genetics, Phaseolus microbiology, Microbiota genetics
- Abstract
Plants modulate the soil microbiota and select a specific microbial community in the rhizosphere. However, plant domestication reduces genetic diversity, changes plant physiology, and could have an impact on the associated microbiome assembly. Here, we used 16S rRNA gene sequencing to assess the microbial community in the bulk soil and rhizosphere of wild, semi-domesticated, and domesticated genotypes of lima bean (Phaseolus lunatus), to investigate the effect of plant domestication on microbial community assembly. In general, rhizosphere communities were more diverse than bulk soil, but no differences were found among genotypes. Our results showed that the microbial community's structure was different from wild and semi-domesticated as compared to domesticated genotypes. The community similarity decreased 57.67% from wild to domesticated genotypes. In general, the most abundant phyla were Actinobacteria (21.9%), Proteobacteria (20.7%), Acidobacteria (14%), and Firmicutes (9.7%). Comparing the different genotypes, the analysis showed that Firmicutes (Bacillus) was abundant in the rhizosphere of the wild genotypes, while Acidobacteria dominated semi-domesticated plants, and Proteobacteria (including rhizobia) was enriched in domesticated P. lunatus rhizosphere. The domestication process also affected the microbial community network, in which the complexity of connections decreased from wild to domesticated genotypes in the rhizosphere. Together, our work showed that the domestication of P. lunatus shaped rhizosphere microbial communities from taxonomic to a functional level, changing the abundance of specific microbial groups and decreasing the complexity of interactions among them., (© 2022. The Author(s), under exclusive licence to Springer Science+Business Media, LLC, part of Springer Nature.)
- Published
- 2023
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18. Changes in the bacterial rare biosphere after permanent application of composted tannery sludge in a tropical soil.
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Araujo ASF, Jia X, Miranda ARL, Pereira APA, Melo VMM, Rocha SMB, Costa RM, Saraiva TCDS, Mendes LW, and Salles JF
- Subjects
- Sewage chemistry, Soil Microbiology, Bacteria genetics, RNA, Ribosomal, 16S, Soil chemistry, Microbiota
- Abstract
Composted tannery sludge (CTS) promotes shifts in soil chemical properties, affecting microbial communities. Although the effect of CTS application on the bacterial community has been studied, it is unclear whether this impact discriminates between the dominant and rare species. This present study investigated how the dominant and rare bacterial communities respond over time to different concentrations of CTS application (0, 2.5, 5, 10, and 20 tons/ha) for 180 days. The richness of operational taxonomic units (OTU) was 30-fold higher in the rare than in the dominant biosphere. While some phyla shifted their relative abundance differently in the dominant and rare biosphere, some genera increased their relative abundance under higher CTS concentrations, such as Nocardioides (∼100%), Rubrobacter (∼300%), and Nordella (∼400%). Undominated processes largely governed the dominant biosphere (76.97%), followed by homogeneous (12.51%) and variable (8.03%) selection, and to a lesser extent, the dispersal limitation (2.48%). The rare biosphere was driven by the CTS application as evidenced by the exclusively homogeneous selection (100%). This study showed that the rare biosphere was more sensitive to changes in soil chemical parameters due to CTS application, which evidences the importance explore this portion of the bacterial community for its biotechnological use in contaminated soils., Competing Interests: Declaration of competing interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper., (Copyright © 2022 Elsevier Ltd. All rights reserved.)
- Published
- 2023
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19. Microbial communities in the rhizosphere of maize and cowpea respond differently to chromium contamination.
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Araujo ASF, Miranda ARL, Pereira APA, de Melo WJ, Melo VMM, Ventura SH, Brito Junior ES, de Medeiros EV, Araujo FF, and Mendes LW
- Subjects
- Chromium analysis, Rhizosphere, Zea mays, Soil Microbiology, Bacteria, Soil, Firmicutes, Vigna, Microbiota, Soil Pollutants analysis
- Abstract
Chromium (Cr) contamination can affect microorganisms in the soil, but the response of the microbial community in the rhizosphere of plants grown in Cr-contaminated soils is poorly understood. Therefore, this study assessed the microbial community, by amplicon sequencing, in the rhizosphere of maize and cowpea growing in uncontaminated (∼6.0 mg kg
-1 Cr) and Cr-contaminated soils (∼250 mg kg-1 Cr). Comparing Cr-contaminated and uncontaminated soils, the microbial community in the maize rhizosphere clustered separately, while the microbial community in the cowpea rhizosphere did not present clear clustering. The microbial richness ranged from ∼5000 (rhizosphere in Cr-contaminated soil) to ∼8000 OTUs (in uncontaminated soil). In the comparison of specific bacterial groups in the rhizosphere of maize, Firmicutes were enriched in Cr-contaminated soil, including Bacilli, Bacillales, and Paenibacillus. Cowpea rhizosphere showed a higher abundance of six microbial groups in Cr-contaminated soil, highlighting Rhizobiales, Pedomicrobium, and Gemmatimonadetes. The microbial community in both rhizospheres presented a similar proportion of specialists comparing uncontaminated (2.2 and 3.4% in the rhizosphere of maize and cowpea, respectively) and Cr-contaminated soils (1.8 and 3.2% in the rhizosphere of maize and cowpea, respectively). This study showed that each plant species drove differently the microbial community in the rhizosphere, with an important effect of Cr-contamination on the microbial community assembly., Competing Interests: Declaration of competing interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper., (Copyright © 2022 Elsevier Ltd. All rights reserved.)- Published
- 2023
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20. Vestibulocochlear Delineation for Vestibular Schwannoma Treated With Radiation Therapy.
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Restini FCF, Brito LH, Yoshimoto FH, Pereira APA, Neto DRF, Gomes VC, Nascimento BC, Mancini A, Alves TMMT, Starling MTM, Chaves GWOG, Passos UL, Marta GN, and Hanna SA
- Abstract
Purpose: To develop a specialist-based consensus of cochlear contouring to be used in patients undergoing stereotactic radiosurgery (SRS) treatment for vestibular schwannoma., Methods and Materials: Representative computed tomography (CT) and magnetic resonance imaging (MRI) were used for cochlear contouring. The semicircles, cochlea, vestibule, and internal acoustic meatus were delineated by 7 radiation oncology department physicians and reviewed by neuroradiologists. A total of 12 cases accrued from a single academic institution were studied for a similarity analysis by the Dice coefficient., Results: The suggested guideline is an easily reproductive tool that allows radiation oncologists to accurately contour the vestibulocochlear system to avoid toxicity due to inadequate dosimetry of organs at risk. This could be a useful tool even for non-vestibular schwannoma radiation therapy. The Dice coefficient suggests reproducible results as long as the following contouring recommendations are observed., Conclusions: The template for vestibulocochlear delineation may be useful for an adequate organs at risk definition. Future studies are required to find specific constraints for each segment of the vestibulocochlear system, and to mitigate interobserver variations., (© 2023 The Author(s).)
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- 2023
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21. Fruit by-products as potential prebiotics and promising functional ingredients to produce fermented milk.
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Oliveira FL, Arruda TYP, Morzelle MC, Pereira APA, and Casarotti SN
- Subjects
- Animals, Dietary Fiber analysis, Fermentation, Fruit, Milk chemistry, Prebiotics analysis
- Abstract
Recently, fruit by-products (FBP) have started to be explored due to their prebiotic potential associated with considerable amounts of dietary fibers and polyphenols. These compounds possess anti-inflammatory activity and can reduce dysbiosis, which is characterized by alterations in the composition and function of the gut microbiota and thus may reduce the onset or progression of several diseases. Therefore, the consumption of FBP must be encouraged. Among food products, fermented milk is a potential candidate for carrying FBP. In this scenario, this review discusses the prebiotic potential of FBP and their anti-inflammatory activity and brings a unique contribution, as it highlights fermented milk as a food carrier for FBP. Therefore, the technological application of FBP as a new ingredient to improve the nutritional and functional values of fermented milk, probiotic viability, and the effects of their addition on the physical and sensory characteristics of fermented milk are topics extensively covered in this review. Moreover, we described the chemical composition of FBP, focusing on polysaccharides and bioactive compounds, their obtention methods and potential adverse effects related to their consumption. Finally, limitations and future directions are outlined to deepen the understanding of FBP and to stimulate their use, to prove their prebiotic potential and to optimize their incorporation into fermented milk., Competing Interests: Declaration of Competing Interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper., (Copyright © 2022 Elsevier Ltd. All rights reserved.)
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- 2022
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22. Arbuscular mycorrhizal fungi community in soils under desertification and restoration in the Brazilian semiarid.
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Silva DFD, Moreira JV, Sousa LIS, Santana MC, Mota JCA, Queiroz ADS, Nascimento ÍVD, Silva AMM, Araújo ASF, Melo VMM, Medeiros ÉV, Cardoso EJBN, and Pereira APA
- Subjects
- Brazil, Conservation of Natural Resources, Fungi, Humans, Plant Roots microbiology, Soil chemistry, Soil Microbiology, Spores, Fungal, Glomeromycota, Mycorrhizae
- Abstract
Soil desertification has a significant social, economic, and environmental impact worldwide. Mycorrhizal diversity remains poorly understood in semiarid regions impacted by desertification, especially in Brazilian drylands. More importantly, positive impacts of grazing exclusion on mycorrhizal communities are still incipient. Here, we hypothesized that overgrazing changes the structure of Arbuscular Mycorrhizal Fungi (AMF) community compared to native areas and, grazing exclusion is effective to restore the AMF community. Thus, we analyzed the status of AMF community in soils under desertification (overgrazing) and restoration (twenty-years of grazing exclusion) in the Brazilian semiarid. AMF-spores were extracted via humid decantation methodology, morphologically classified, and alpha diversity metrics were calculated. Soil samples were chemically, and physically characterized and multivariate statistical analyses were applied to verify the impact of soil degradation and restoration on AMF-community. Briefly, native, and restored areas presented higher contents of organic matter, phosphorus, microbial carbon, and β-glucosidase activity. However, degraded soil showed higher Al
3+ , Na+, and bulk soil density values. The abundance of AMF spores was higher in restored soil, followed by degraded and native vegetation, and Shannon's diversity index was significantly higher in restored soils, followed by native vegetation. AMF-spores were classified into four families (Gigasporaceae > Acaulosporaceae > Glomeraceae > Ambisporaceae). Ambisporaceae was closed correlated with degraded soil, mainly with Al3+ , Na+ , and bulk soil density properties. On the other hand, Acaulosporaceae and Glomeraceae were positively correlated with native vegetation and restored soil, respectively, thereby improving Shannon index, richness, enzyme activity, and soil respiration. Thus, grazing exclusion, in long term, can be a good strategy to restore AMF-diversity in soils in the Brazilian semiarid., (Copyright © 2022 Elsevier GmbH. All rights reserved.)- Published
- 2022
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23. Yield of soybean genotypes identified through GGE biplot and path analysis.
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Silva WJDS, Alcântara Neto F, Al-Qahtani WH, Okla MK, Al-Hashimi A, Vieira PFMJ, Gravina GA, Zuffo AM, Dutra AF, Carvalho LCB, Sousa RS, Pereira APA, Leite WS, Silva Júnior GBD, Silva ACD, Leite MRL, Lustosa Sobrinho R, and AbdElgawad H
- Subjects
- Edible Grain genetics, Genotype, Phenotype, Plant Breeding methods, Glycine max genetics
- Abstract
Genotype × environment (G×E) interaction is an important source of variation in soybean yield, which can significantly influence selection in breeding programs. This study aimed to select superior soybean genotypes for performance and yield stability, from data from multi-environment trials (METs), through GGE biplot analysis that combines the main effects of the genotype (G) plus the genotype-by-environment (G×E) interaction. As well as, through path analysis, determine the direct and indirect influences of yield components on soybean grain yield, as a genotype selection strategy. Eight soybean genotypes from the breeding program of Empresa Brasileira de Pesquisa Agropecuária (EMBRAPA) were evaluated in field trials using a randomized block experimental design, in an 8 x 8 factorial scheme with four replications in eight different environments of the Cerrado of Northeastern Brazil during two crop seasons. Phenotypic performance data were measured for the number of days to flowering (NDF), height of first pod insertion (HPI), final plant height (FPH), number of days to maturity (NDM), mass of 100 grains (M100) and grain yield (GY). The results revealed that the variance due to genotype, environment, and G×E interaction was highly significant (P < 0.001) for all traits. The ST820RR, BRS 333RR, BRS SambaíbaRR, M9144RR and M9056RR genotypes exhibited the greatest GY stability in the environments studied. However, only the BRS 333RR genotype, followed by the M9144RR, was able to combine good productive performance with high yield stability. The study also revealed that the HPI and the NDM are traits that should be prioritized in the selection of soybean genotypes due to the direct and indirect effects on the GY., Competing Interests: The authors have declared that no competing interests exist.
- Published
- 2022
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24. Arbuscular Mycorrhizal Fungi and Soil Quality Indicators in Eucalyptus genotypes With Different Drought Tolerance Levels.
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Lopes BAB, Silva AMM, Santana MC, Feiler HP, Pereira APA, Teixeira MF, de Araújo VLVP, de Ávila PA, Gonçalves JLM, Staunton S, and Cardoso EJBN
- Abstract
Silviculture has great importance worldwide, and the use of Eucalyptus species, which account for 75% of the local planted forest in Brazil, is one of the factors that contributes to the success of this activity in the country. Despite its adaptability, the yield of Eucalyptus is often affected by climate change, particularly water deficiency. Plants have developed strategies to mitigate water stress, for example, through their association with mycorrhizal fungi. The genus Eucalyptus , particularly in the plant domain, establishes symbioses with arbuscular mycorrhizal fungi (AMF) and ectomycorrhizal fungi (ECMF). The influence of Eucalyptus species on AMF and soil quality indicators is not well understood. Our aim was to conduct a preliminary evaluation of the various responses of soil AMF communities and soil nutrient dynamics in the presence of Eucalyptus species with different degrees of drought tolerance. A field experiment was established containing six Eucalyptus species, E. brassiana , E. camaldulensis , E. citriodora , E. cloeziana , E. grandis , and E. urophylla , all of which were planted in large plots. Soil and root samples were taken when the plants were 1.7 and 2.2 years old. We found that Eucalyptus species with low ( E. grandis and E. urophylla ) and intermediate drought tolerance ( E. citriodora and E. cloeziana ) showed stronger correlations with the AMF community than Eucalyptus species with high drought tolerance ( E. brassiana and E. camaldulensis ). Differences were also found between Eucalyptus species for AMF spore numbers and root colonization percentages, which was most evident for E. urophylla . The microbiological attributes found to be most responsive to Eucalyptus species were soil enzyme activities, AMF spore numbers, root colonization percentages, and fungal abundance. Soil organic carbon, phosphorus, potassium, zinc, copper, and iron were the main chemical drivers related to the soil AMF community structure in the presence of E. brassiana ., Competing Interests: The authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest., (Copyright © 2022 Lopes, Silva, Santana, Feiler, Pereira, Teixeira, Araújo, Ávila, Gonçalves, Staunton and Cardoso.)
- Published
- 2022
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25. The porosity of carbohydrate-based spray-dried microparticles containing limonene stabilized by pea protein: Correlation between porosity and oxidative stability.
- Author
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Francisco CRL, Paulo BB, De Oliveira Júnior FD, Pereira APA, Pastore GM, Prata AS, Alvim ID, and Hubinger MD
- Abstract
In this study, the effects of different concentrations of pea protein concentrate (PPC) in the physical properties, porosity features, and oxidative stability of maltodextrin-based spray-dried microparticles containing orange essential oil (OEO, rich in limonene) were evaluated. The use of PPC resulted in spray-dried microparticles with encapsulation efficiencies of about 99 wt%, without visible pores, and relatively high glass transition temperature (66,4 °C) at A
w ∼ 0.3. The nitrogen adsorption and positron annihilation lifetime spectroscopy measurements showed that the increase of PPC concentration from 2.4 to 4.8 wt% (g of PPC/100 g of emulsion) did not affect the porosity features of the microparticles. These results were confirmed by the profiles of OEO retention and limonene oxide production, which were similar for both samples throughout four weeks of storage. Based on these results, we verified that the lower amount of PPC we tested can effectively protect the OEO during storage, showing that a relatively cheaper orange flavor powder can be produced using less protein., Competing Interests: The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper., (© 2022 The Authors.)- Published
- 2022
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26. Genetically related genotypes of cowpea present similar bacterial community in the rhizosphere.
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de Albuquerque TM, Mendes LW, Rocha SMB, Antunes JEL, Oliveira LMS, Melo VMM, Oliveira FAS, Pereira APA, da Silva VB, Gomes RLF, de Alcantara Neto F, Lopes ACA, de Moura Rocha M, and Araujo ASF
- Subjects
- Bacteria genetics, Genotype, Plant Breeding, Plant Roots microbiology, Plants genetics, RNA, Ribosomal, 16S genetics, Soil Microbiology, Rhizosphere, Vigna genetics, Vigna microbiology
- Abstract
Plant breeding reduces the genetic diversity of plants and could influence the composition, structure, and diversity of the rhizosphere microbiome, selecting more homogeneous and specialized microbes. In this study, we used 16S rRNA sequencing to assess the bacterial community in the rhizosphere of different lines and modern cowpea cultivars, to investigate the effect of cowpea breeding on bacterial community assembly. Thus, two African lines (IT85F-2687 and IT82D-60) and two Brazilian cultivars (BRS-Guariba and BRS-Tumucumaque) of cowpea were assessed to verify if the generation advance and genetic breeding influence the bacterial community in the rhizosphere. No significant differences were found in the structure, richness, and diversity of bacterial community structure between the rhizosphere of the different cowpea genotypes, and only slight differences were found at the OTU level. The complexity of the co-occurrence network decreased from African lines to Brazilian cultivars. Regarding functional prediction, the core functions were significantly altered according to the genotypes. In general, African lines presented a more abundance of groups related to chemoheterotrophy, while the rhizosphere of the modern cultivars decreased functions related to cellulolysis. This study showed that the genetic breeding process affects the dynamics of the rhizosphere community, decreasing the complexity of interaction in one cultivar. As these cowpea genotypes are genetically related, it could suggest a new hypothesis of how genetic breeding of similar genotypes could influence the rhizosphere microbiome., (© 2022. The Author(s).)
- Published
- 2022
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27. Forest-to-pasture conversion modifies the soil bacterial community in Brazilian dry forest Caatinga.
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Costa DPD, Araujo ASF, Pereira APA, Mendes LW, França RFD, Silva TDGED, Oliveira JB, Araujo JS, Duda GP, Menezes RSC, and Medeiros EV
- Subjects
- Biodiversity, Forests, RNA, Ribosomal, 16S genetics, Soil Microbiology, Microbiota, Soil
- Abstract
Soils comprise a huge fraction of the world's biodiversity, contributing to several crucial ecosystem functions. However, how the forest-to-pasture conversion impact soil bacterial diversity remains poorly understood, mainly in the Caatinga biome, the largest tropical dry forest of the world. Here, we hypothesized that forest-to-pasture conversion would shape the microbial community. Thus, the soil bacterial community was assessed using the 16S rRNA gene sequencing into the Illumina MiSeq platform. Then, we analyzed ecological patterns and correlated the bacterial community with environmental parameters in forest, and two distinct pastures areas, one less productive and another more productive. The variation in soil properties in pastures and forest influenced the structure and diversity of the bacterial community. Thus, the more productive pasture positively influenced the proportion of specialists and the co-occurrence network compared to the less productive pasture. Also, Proteobacteria, Acidobacteria, and Verrucomicrobia were abundant under forest, while Actinobacteria, Firmicutes, and Chloroflexi were abundant under pastures. Also, the more productive pasture presented a higher bacterial diversity, which is important since that a more stable and connected bacterial community could benefit the agricultural environment and enhance plant performance, as can be observed by the highest network complexity in this pasture. Together, our findings elucidate a significant shift in soil bacterial communities as a consequence of forest-to-pasture conversion and bring important information for the development of preservation strategies., Competing Interests: Declaration of competing interest The authors declare no conflict of interest., (Copyright © 2021 Elsevier B.V. All rights reserved.)
- Published
- 2022
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28. Dataset for effects of the transition from dry forest to pasture on diversity and structure of bacterial communities in Northeastern Brazil.
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Costa DPD, Araujo ASF, Pereira APA, Mendes LW, França RFD, Silva TDGED, Oliveira JB, Araujo JS, Duda GP, Menezes RSC, and Medeiros EV
- Abstract
The data included in this article supplement the research article titled "Forest-to-pasture conversion modifies the soil bacterial community in Brazilian dry forest Caatinga (manuscript ID: STOTEN-D-21-19067R1)". This data article included the analysis of 18 chemical variables in 36 composite samples (included 4 replicates) of soils from the Microregion of Garanhuns (Northeast Brazil) and also partial 16S rRNA gene sequences from genomic DNA extracted from 27 of these samples (included 3 best quality replicates) for paired-end sequencing (up to 2 × 300 bp) in Illumina MiSeq platform (NCBI - BioProject accession: PRJNA753707). Soils were collected in August 2018 in a tropical subhumid region from the Brazilian Caatinga, along with 27 composite samples from the aboveground part of pastures to determine nutritional quality based on leaf N content. The analysis of variance (ANOVA) and post-hoc tests of environmental data and the main alpha-diversity indices based on linear mixed models (LMM) were represented in the tables. In this case, the collection region (C1 - Brejão, C2 - Garanhuns, and C3 - São João) was the random-effect variable and adjacent habitats formed by a forest (FO) and two pastures (PA and PB succeeded by this forest) composed the fixed-effect variable (land cover), both nested within C. In addition, a table with similarity percentages breakdown (SIMPER) was also shown, a procedure to assess the average percent contribution of individual phyla and bacterial classes. The figures showed the details of the study location, sampling procedure, vegetation status through the Normalized Difference Vegetation Index (NDVI), in addition to the general abundance and composition of the main bacterial phyla., Competing Interests: The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper., (© 2022 Published by Elsevier Inc.)
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- 2022
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29. Dynamics of bacterial and archaeal communities along the composting of tannery sludge.
- Author
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Araujo ASF, de Pereira APA, Antunes JEL, Oliveira LMS, de Melo WJ, Rocha SMB, do Amorim MR, Araujo FF, Melo VMM, and Mendes LW
- Subjects
- RNA, Ribosomal, 16S genetics, Sewage, Soil, Tanning, Archaea genetics, Bacteria genetics, Composting, Industrial Waste
- Abstract
The process of composting has been proposed as a biological alternative to improve the quality of tannery sludge (TS) by the action of microbial communities. However, there is limited knowledge about the dynamic of these microbial communities during the composting process. This study assessed the responses of bacterial and archaeal communities during TS composting using the 16S rRNA sequencing. The composting process occurred within 90 days, and samples of compost were collected on day 7 (d7; mesophilic stage), 30 (d30; thermophilic stage), 60 (d60; cooling stage), and 90 (d90; maturation stage). The results showed a succession of microbial phyla during the composting with enrichment of Synergistetes, WS1, and Euryarchaeota at the mesophilic stage, while at the thermophilic stage, there was an enrichment of Hydrogenedentes, WPS-2, Chloroflexi, and Deinococcus-Thermus. At the cooling stage, there was an enrichment of Kiritimatiellaeota, and at the maturation stage, there was an enrichment of Entotheonellaeota, Dadabacteria, Nitrospirae, Dependiatiae, and Fibrobacteres. When analyzing the drivers influencing microbial communities, Cr and pH presented more negative correlations with general phyla. In contrast, S, C, K, temperature, and N presented more positive correlations, while Ni, Cd, and P showed fewer correlations. According to niche occupancy, we observed a decreased proportion of generalists with a consequently increased proportion of specialists following the composting process. This study showed that different stages of the composting present a specific microbial community structure and dynamics, which are related to some specific composting characteristics., (© 2021. The Author(s), under exclusive licence to Springer-Verlag GmbH Germany, part of Springer Nature.)
- Published
- 2021
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30. Antibacterial films made with persimmon (Diospyros kaki L.), pectin, and glycerol: An experimental design approach.
- Author
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Matheus JRV, Nogueira TBB, Pereira APA, Correia TR, de Sousa AMF, Pastore GM, Pelissari FM, Miyahira RF, and Fai AEC
- Subjects
- Anti-Bacterial Agents pharmacology, Fruit chemistry, Permeability, Tensile Strength, Diospyros chemistry, Food Packaging methods, Glycerol chemistry, Pectins chemistry
- Abstract
Persimmon is among the fruits with a significant postharvest loss over the last few years. Thus, it is important to investigate new technical feasibilities to obtain products with higher added value from this fruit. In this study persimmon puree films (Diospyros kaki L.) incorporated with glycerol and pectin by casting technique were formulated using a Plackett-Burman design and characterized. The puree showed high carbohydrate content (175.70 g/kg). In descending order, fructose, glucose, and maltohexaose were the sugars found in persimmon. All the independent variables studied-puree concentration, pectin, glycerol, and temperature-statistically influenced the tensile strength (0.75-1.30 MPa), elongation at break (17.69-26.02%), and Young's modulus (3.34-10.94 MPa) of the films. Water solubility ranged from 68.80% to 80.86%, which were very similar to other films based on puree fruit in the literature. Samples presented high vapor permeability (5.77-6.63 × 10
-6 g/h/m/Pa) when compared to biodegradable films. Scanning electron microscopy showed smooth surfaces and good plasticizer dispersion. The colorimetric coordinates indicated the films are reddish and yellowish, giving them an orange-ish visual aspect. The films exhibited antimicrobial activity, especially against Escherichia coli and Staphylococcus aureus. These results indicate that the developed films might be a good candidate for antimicrobial food packaging improving food quality and safety. PRACTICAL APPLICATION: The production of fruit-film packaging with functional and biodegradable characteristics might reduce postharvest loss of fruit and have the potential to develop active food packaging. In this sense, this study is in line with precepts of the circular economy, once it takes advantage of exceeded resources that would be discarded by generating biodegradable films which can be used as edible packaging. Furthermore, given the antimicrobial potential of the films developed, they might be applied as active packaging to improve food safety and extend shelf life., (© 2021 Institute of Food Technologists®.)- Published
- 2021
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31. Brazilian sunberry (Solanum oocarpum Sendtn): Alkaloid composition and improvement of mitochondrial functionality and insulin secretion of INS-1E cells.
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Pereira APA, Fernando Figueiredo Angolini C, de Souza-Sporkens JC, da Silva TA, Coutinho Franco de Oliveira H, and Pastore GM
- Subjects
- Fruit, Insulin Secretion, Mitochondria, Alkaloids pharmacology, Solanum
- Abstract
Chronic high-glucose levels induce the generation of reactive oxygen species leading to mitochondrial dysfunction, which is one of the pathological triggers in the development of diabetes. This study investigated the alkaloid composition of two fruits of the genus Solanum, fruta-do-lobo (Solanum lycocarpum) and juá-açu (Solanum oocarpum), and their capacity to protect against oxidative damage and defective insulin secretion induced by chronic high-glucose levels. LC-MS and molecular network of fruit crude extracts reveals that juá-açu and fruta-do-lobo contain kukoamines and glycoalkaloids, respectively. Two purification processes were used to enrich those alkaloids. Fruta-do-lobo extract rich in glycoalkaloids showed a strong cytotoxicity effect, however the juá-açu enriched extract was able to protect mitochondrial functionality against glucotoxicity and stimulate insulin secretion even under conditions of hyperglycemia. These results are promising and suggest that juá-açu is a potential source of bioactive compounds for adjuvant/co-adjuvant therapy for diabetes., (Copyright © 2021 Elsevier Ltd. All rights reserved.)
- Published
- 2021
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32. Corrigendum to "Sulfadiazine dissipation as a function of soil bacterial diversity" [Environ. Pollut. 271 (2021) 116374].
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de Souza AJ, Pereira APA, Andreote FD, Tornisielo VL, Tizioto PC, Coutinho LL, and Regitano JB
- Published
- 2021
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33. Brazilian Validation of the European Organisation for Research and Treatment of Cancer (EORTC) Quality of Life Group (QLG) Computerised Adaptive Tests (CAT) Core.
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Marta GN, de Souza TYT, Silva ARNSE, Pereira APA, Ferreira Neto DR, Asso RN, Degrande FAM, Nader-Marta G, da Silva MF, Gadia R, Hanna SA, Holzner B, Saad ED, and Petersen MA
- Subjects
- Brazil, Cross-Sectional Studies, Humans, Psychometrics, Surveys and Questionnaires, Neoplasms therapy, Quality of Life
- Abstract
Background: This study aimed to validate the Brazilian version of EORTC CAT Core and compare the Brazilian results with those from the original European EORTC CAT Core validation study., Methods: After validated translation, 168 cancer patients from Brazil receiving radiation therapy with or without chemotherapy was assessed. Translated EORTC CAT Core and all QLQ-C30 items were administered to patients using CHES (Computer-Based Health Evaluation System) before (T0) and after (T1) treatment initiation. The association between QLQ-C30 and CAT scores and ceiling/floor effects were estimated. Based on estimates of relative validity (cross-sectional, known-group differences and changes over time), relative sample-size requirements for CAT compared to QLQ-C30 were estimated., Results: Correlation coefficients between CAT and QLQ-C30 domains ranged from 0.63 to 0.93; except for dyspnoea, all coefficients were >0.82 (corresponding figures were 0.81-0.93 in the European study). On average across domains, floor/ceiling was reduced by 10% using CAT (9% in the European study) corresponding to a relative reduction of 32% (37% in the European study). Analyses of known-group validity and responsiveness indicated that, on average across domains, the sample-size requirements may be reduced by 17% using CAT rather than QLQ-C30, without loss of power (28% in the European study). The Brazilian sample had less symptom/quality of life impairment than the European sample, which likely explains the lower sample-size reduction using CAT when comparing with the European sample., Conclusions: The results in the Brazilian cohort were generally similar to those from the European sample and confirm the validity and usefulness of the EORTC CAT Core.
- Published
- 2021
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34. Plant growth-promoting mechanisms and genetic diversity of bacteria strains isolated from Brachiaria humidicola and Brachiaria decumbens.
- Author
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Oliveira JTC, Pereira APA, Souza AJ, Silva GT, Diniz WPS, Figueredo EF, Kuklinsky-Sobral J, and Freire FJ
- Subjects
- Bacteria genetics, Genetic Variation, Plant Development, Plant Roots, Poaceae, Brachiaria genetics
- Abstract
Plant growth-promoting bacteria (PGPB) have received great interest in recent decades. However, PGPB mechanisms remain poorly understood in forage species. We aimed to evaluate roots endophytic and rhizospheric bacteria strains from Brachiaria humidicola and Brachiaria decumbens. The strains were evaluated for biological nitrogen-fixing in saline stress (0 to 10.0 g L-1 of NaCl), N-acyl homoserine lactones and indole-like compounds (ILC) production, the activity of hydrolytic enzymes, and inorganic phosphate solubilization (IPS) under different C sources. The diversity of strains was assessed by BOX-PCR. About 58% of strains were positive for BNF. High salinity levels reduced the growth and BNF. About 58% produced N-acyl homoserine lactones. The ILC was present in 39% of strains. Cellulase, polygalacturonase, pectate lyase, and amylase production were observed in 77, 14, 22, and 25% of strains, respectively. The IPS was observed in 44, 81, and 87% of isolates when glucose, mannitol and sucrose were used, respectively. Comparing two plant species and niches, the strains associated with B. humidicola and root endophytic presented more PGPB mechanisms than others. We found high strain diversity, of which 64% showed similarity lower than 70%. These results can be supporting the bioproducts development to increase forage grasses production in tropical soils.
- Published
- 2021
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35. Would the STRASS study be an "unbroken" paradigm for retroperitoneal sarcomas?
- Author
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Hanna SA, Silva ARNSE, Souza TYT, Restini FCF, Ferreira Neto DR, Brito LH, Pereira APA, Silva JLFD, and Starling MTM
- Subjects
- Humans, Retroperitoneal Neoplasms diagnostic imaging, Sarcoma, Soft Tissue Neoplasms
- Published
- 2021
- Full Text
- View/download PDF
36. Nitrogen-fixing trees in mixed forest systems regulate the ecology of fungal community and phosphorus cycling.
- Author
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Pereira APA, Santana MC, Zagatto MRG, Brandani CB, Wang JT, Verma JP, Singh BK, and Cardoso EJBN
- Subjects
- Ecosystem, Forests, Nitrogen, Phosphorus, Soil, Soil Microbiology, Mycobiome, Trees
- Abstract
The fungal community plays an important role in forest ecosystems via the provision of resources to plant nutrition and productivity. However, the ecology of the fungal network and its relationship with phosphorus (P) dynamics remain poorly understood in mixed forest plantations. Here, we analyzed the fungal community using the amplicon sequencing in plantations of pure Eucalyptus grandis, with (E + N) and without N fertilization (E), besides pure Acacia mangium (A), and in a consortium of E. grandis and A. mangium (E + A), at 27 and 39 months after planting. We analyzed chemical, physical and biochemical soil and litter attributes related to P cycling, and the fungal community structure to find out if mixed plantations can increase fungal connections and to identify their role in the P dynamics in the soil-litter system. Soil organic fraction (OF), phosphorus in OF, total-P and acid phosphatase activity were significantly higher in E + A and A treatments regardless of the sampling period. Total N and P, richness, and Shannon diversity of the fungi in the litter was significantly higher in the treatments E + A and A. The fungal community structure in litter differed between treatments and sampling periods, and E + A showed an intermediate structure between the two pure treatments (E) and (A). E + A correlated highly with P dynamics when evaluated by both Pearson and redundancy analyses, particularly in the litter layer. Co-occurrence networks of fungal taxa became simpler in pure E. grandis plantations, whereas mixed system (E + A) showed a more connected and complex network. Our findings provide novel evidence that mixed forest plantations promote positive responses in the fungal community connections, which are closely related to P availability in the system, prominently in the litter layer. This indicates that the litter layer represents a specific niche to improve nutrient cycling by fungi in mixed forest ecosystems., Competing Interests: Declaration of competing interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper., (Copyright © 2020 Elsevier B.V. All rights reserved.)
- Published
- 2021
- Full Text
- View/download PDF
37. Sulfadiazine dissipation as a function of soil bacterial diversity.
- Author
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de Souza AJ, Pereira APA, Andreote FD, Tornisielo VL, Tizioto PC, Coutinho LL, and Regitano JB
- Subjects
- Animals, Anti-Bacterial Agents, Bacteria genetics, Biodegradation, Environmental, Manure, Soil, Soil Microbiology, Swine, Soil Pollutants analysis, Sulfadiazine
- Abstract
Antibiotic residues in the environment are concerning since results in dispersion of resistance genes. Their degradation is often closely related to microbial metabolism. However, the impacts of soil bacterial community on sulfadiazine (SDZ) dissipation remains unclear, mainly in tropical soils. Our main goals were to evaluate effects of long-term swine manure application on soil bacterial structure as well as effects of soil microbial diversity depletion on SDZ dissipation, using "extinction dilution approach" and
14 C-SDZ. Manure application affected several soil attributes, such as pH, organic carbon (OC), and macronutrient contents as well as bacterial community structure and diversity. Even minor bacterial diversity depletion impacted SDZ mineralization and non-extractible residue (NER) formation rates, but NER recovered along 42 d likely due to soil diversity recovery. However, this period may be enough to spread resistance genes into the environment. Surprisingly, the non-manured natural soil (NS-S1) showed faster SDZ dissipation rate (DT90 = 2.0 versus 21 d) and had a great number of bacterial families involved in major SDZ dissipation pathways (mineralization and mainly NER), such as Isosphaeraceae, Ktedonobacteraceae, Acidobacteriaceae_(Subgroup_1), Micromonosporaceae, and Sphingobacteriaceae. This result is unique and contrasts our hypothesis that long-term manured soils would present adaptive advantages and, consequently, have higher SDZ dissipation rates. The literature suggests instantaneous chemical degradation of SDZ in acidic soils responsible to the fast formation of NER. Our results show that if chemical degradation happens, it is soon followed by microbial metabolism (biodegradation) performed by a pool of bacteria and the newly formed metabolites should favors NER formation since SDZ presented low sorption. It also showed that SDZ mineralization is a low redundancy function., Competing Interests: Declaration of competing interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper., (Copyright © 2020 Elsevier Ltd. All rights reserved.)- Published
- 2021
- Full Text
- View/download PDF
38. Impact of ripening on the health-promoting components from fruta-do-lobo (Solanum lycocarpum St. Hill).
- Author
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Pereira APA, Angolini CFF, Adani HB, Usberti FCS, Paulino BN, Clerici MTPS, Neri-Numa IA, Moro TMA, Eberlin MN, and Pastore GM
- Subjects
- Antioxidants, Brazil, Fruit, Plant Extracts, Solanum
- Abstract
Fruta-do-lobo (Solanum lycocarpum St. Hill) is an underutilized native fruit commonly found in the Brazilian Cerrado, very known due to the presence of glycoalkaloids. In this work we evaluated the biochemical changes on carbohydrates, phenolic and alkaloids during ripening of fruta-do-lobo using chromatographic and spectrometric techniques. During ripening, we observed an increase in glucose, fructose and sucrose, while oligosaccharides levels varied. Chlorogenic acid isomers represented 80% of the identified phenolic compounds in unripe stage, but they reduced during ripening, resulting in predominance of p-coumaroylquinic acid (peel and pulp) and 1-O-sinapoyl-glucoside (seeds). Statistical analysis shows that the unripe fractions were richer in alkaloids compounds, which were the most important for antioxidant activity. Molecular network analysis summarizes the compound changes during ripening, especially regarding the alkaloid compounds, with a reduction of around 85% of solamargine abundance. These data show that fruta-do-lobo can presents different chemical compositions due their ripening stage providing support for future research aimed to the application of these compounds in glycemia control or uses of their extracts with higher content of alkaloids compounds., (Copyright © 2020 Elsevier Ltd. All rights reserved.)
- Published
- 2021
- Full Text
- View/download PDF
39. Evaluation of fruta-do-lobo (Solanum lycocarpum St. Hill) starch on the growth of probiotic strains.
- Author
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Pereira APA, Lauretti LBC, Alvarenga VO, Paulino BN, Angolini CFF, Neri-Numa IA, Orlando EA, Pallone JAL, Sant'Ana AS, and Pastore GM
- Subjects
- Bifidobacterium, Brazil, Starch, Probiotics, Solanum
- Abstract
Fruta-do-lobo (Solanum lycocarpum St. Hill) is a native fruit commonly used in Brazilian folk medicine as a hypoglycemic agent. These properties are attributed to their starch, mainly its resistant fraction. Resistant starch has shown to increases the growth of Bifidobacterium and Lactobacillus in the gut, even though not being selective for these strains. In this scenario, this study aimed to investigate the potential prebiotic activity of fruta-do-lobo starch (FLS). FLS showed around 30% of resistant starch and their prebiotic potential was evaluated with five probiotic strains L. acidophilus (LA3 and LA5), L. casei (LC01) and B. animalis (BB12) and B. lactis (BLC1) in a concentration range of 1.0-2.0% of starch. In a preliminary screening, we evaluated, during 48 h, the viability of the starch with promoting growth agent. An increase in the growth of the probiotic strains tested was observed. We also evaluated the microorganism's metabolic activity by assessing the short-chain fatty acid (SCFA) production, using the best starch growth promotion conditions (2% of FLS and strains BLC1, LA5, and LC01). As expected, MRS and lactose were preferentially metabolized by BLC1, with the highest growth rates: 0.231 and 0.224 h
-1 , respectively. However, for this strain, the FLS growth rate (0.222 h-1 ) was 65% higher than FOS (0.144 h-1 ). Also, for LA5 FLS promoted higher growth (0.150 h-1 ) than FOS (0.135 h-1 ). Additionally, FLS promoted acetate production. These data are promising and indicate that FLS may have prebiotic potential and more studies need to be done with pathogenic microorganisms., (Copyright © 2020 Elsevier Ltd. All rights reserved.)- Published
- 2020
- Full Text
- View/download PDF
40. Recommendations for radiotherapy during the novel coronavirus pandemic.
- Author
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Starling MTM, Silva ARNSE, Pereira APA, Ferreira Neto DR, Restini FCF, Brito LH, Souza TYT, and Hanna SA
- Subjects
- Betacoronavirus, COVID-19, Humans, Pandemics, Practice Guidelines as Topic, SARS-CoV-2, Coronavirus Infections epidemiology, Neoplasms radiotherapy, Pneumonia, Viral epidemiology, Radiotherapy standards
- Published
- 2020
- Full Text
- View/download PDF
41. A comprehensive characterization of Solanum lycocarpum St. Hill and Solanum oocarpum Sendtn: Chemical composition and antioxidant properties.
- Author
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Pereira APA, Angolini CFF, Paulino BN, Lauretti LBC, Orlando EA, Silva JGS, Neri-Numa IA, Souza JDRP, Pallone JAL, Eberlin MN, and Pastore GM
- Subjects
- Phenols analysis, Volatile Organic Compounds analysis, Antioxidants analysis, Fruit chemistry, Solanum chemistry
- Abstract
In this study we evaluated the proximate composition of two Solanaceae fruits from Brazilian Cerrado, their mineral content, volatile organic compounds (VOCs), phenolic compounds profile, and antioxidant capacity employing Oxygen Radical Absorbance Capacity (ORAC) assay, for each part of the fruits (pulp, peel and seeds). Our results showed that the pulp has a high moisture content (74.62-85.40 g/100 g) and soluble fiber (1.29-2.06 g/100 g) content, and low fat, protein, and ash content. The peel exhibited high levels of carbohydrates and total fibers (6.55-11.39 and 12.35-13.12 g/100 g, respectively), while the seed presented high content of fat, protein, and insoluble fiber (10.14-12.62, 9.14-13.24 and 19.84-23.15 g/100 g). Potassium is the main mineral found in both fruits. It is the first time that the carbohydrate profile, volatile components, and phenolic compounds of the fruta-do-lobo and juá-açu are reported. 1-Kestose (GF2) and nystose (GF3) were found in both fruits. The main VOCs of juá-açu were esters, while in fruta-do-lobo, aldehydes were the major components. UPLC-Q-ToF fraction analysis of juá-açu and fruta-do-lobo revealed 24 phenolic compounds, most being hydroxycinnamic acids derivatives in juá-açu, and chlorogenic acids in fruta-do-lobo. The antioxidant capacity (ORAC) of the fruits ranged from 1.35 to 11.51 μmol TE/100 mL of extract. These results indicate that Solanum genus can be interesting for the Brazilian fruit market, and that it has potential to be exploited for agroindustry for diversification of fruit products., (Copyright © 2018 Elsevier Ltd. All rights reserved.)
- Published
- 2019
- Full Text
- View/download PDF
42. Blackberries ( Rubus sp.) and whole grain wheat flour in cookies: evaluation of phenolic compounds and technological properties.
- Author
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Pereira APA, Clerici MTPS, Schmiele M, and Pastore GM
- Abstract
This study evaluated the technological and functional performance of whole grain wheat flour (WGWF), blackberry flour (BF), and blackberry pieces (BP) in cookies, using a Central Rotatable Composite Design (R
2 > 0.75, and p < 0.10 for model validation). Similar color and fracturability behavior was observed for all cookies with BF and BP, however the phenolic compounds (TPC) and anthocyanins (TAC) levels increased with increasing BF and BP. The formulation selected in the desirability function, containing 7.94% and 4.72% BP and BF, respectively, presented 1553.79 mg GAE/100 g TPC, 63.90 mg CGE/kg TAC. The WGWF and BF can be alternative ingredients to improve color and provide health benefits of cookies., Competing Interests: Compliance with ethical standardsThe authors declare that they have no conflict of interest.- Published
- 2019
- Full Text
- View/download PDF
43. Acacia Changes Microbial Indicators and Increases C and N in Soil Organic Fractions in Intercropped Eucalyptus Plantations.
- Author
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Pereira APA, Zagatto MRG, Brandani CB, Mescolotti DL, Cotta SR, Gonçalves JLM, and Cardoso EJBN
- Abstract
Intercropping forest plantations of Eucalyptus with nitrogen-fixing trees can increase soil N inputs and stimulate soil organic matter (OM) cycling. However, microbial indicators and their correlation in specific fractions of soil OM are unclear in the tropical sandy soils. Here, we examined the microbial indicators associated with C and N in the soil resulting from pure and intercropped Eucalyptus grandis and Acacia mangium plantations. We hypothesized that introduction of A. mangium in a Eucalyptus plantation promotes changes in microbial indicators and increases C and N concentrations on labile fractions of the soil OM, when compared to pure eucalyptus plantations. We determined the microbial and enzymatic activity, and the potential for C degradation by the soil microbial community. Additionally, we evaluated soil OM fractions and litter parameters. Soil (0-20 cm) and litter samples were collected at 27 and 39 months after planting from the following treatments: pure E. grandis (E) and A. mangium (A) plantations, pure E. grandis plantations with N fertilizer (E+N) and an E. grandis , and A. mangium intercropped plantations (E+A). The results showed that intercropped plantations (E+A) increase 3, 45, and 70% microbial biomass C as compared to A, E+N, and E, at 27 months after planting. The metabolic quotient ( q CO
2 ) showed a tendency toward stressful values in pure E. grandis plantations and a strong correlation with dehydrogenase activity. A and E+A treatments also exhibited the highest organic fractions (OF) and C and N contents. A canonical redundancy analysis revealed positive correlations between microbial indicators of soil and litter attributes, and a strong effect of C and N variables in differentiating A and E+A from E and E+N treatments. The results suggested that a significant role of A. mangium enhance the dynamics of soil microbial indicators which help in the accumulation of C and N in soil OF in intercropped E. grandis plantations. Our results are mostly relevant to plantations in sandy soil areas with low levels of OM, suggesting and efficient method for improving nutrient availability in the soil and optimizing eucalyptus growth and development.- Published
- 2018
- Full Text
- View/download PDF
44. Small Brazilian wild fruits: Nutrients, bioactive compounds, health-promotion properties and commercial interest.
- Author
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Neri-Numa IA, Soriano Sancho RA, Pereira APA, and Pastore GM
- Subjects
- Animals, Arecaceae adverse effects, Brazil, Fruit adverse effects, Humans, Malpighiaceae adverse effects, Myrtaceae adverse effects, Plant Preparations adverse effects, Arecaceae chemistry, Dietary Supplements adverse effects, Fruit chemistry, Malpighiaceae chemistry, Myrtaceae chemistry, Nutritive Value, Plant Preparations therapeutic use
- Abstract
Brazilian berries present great nutritional, functional and economic characteristics comparable to temperate berries. They constitute an important innovation domain for the food, pharmaceutical and cosmetic industries, due to their positive health effects and market potential. The main objective of this review was to describe the physicochemical, nutritional and biological aspects of six Brazilian small native wild fruits from the Arecaceae (açaí, buriti and pupunha), Mirtaceae (camu-camu and jaboticaba) and Malpighiaceae (murici) families, highlighting their antioxidant, anti-lipidaemic, anti-inflammatory, antiproliferative, and antigenotoxic potential among others. It also discussed some relevant topics for new studies that could be of benefit to industry and improve the local economy where these fruits are found. Thus, the dissemination of the works already carried out with these fruits strategically relevant can stimulate new lines of research to consolidate this new field for the food industries., (Copyright © 2017 Elsevier Ltd. All rights reserved.)
- Published
- 2018
- Full Text
- View/download PDF
45. Shifts in the bacterial community composition along deep soil profiles in monospecific and mixed stands of Eucalyptus grandis and Acacia mangium.
- Author
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Pereira APA, Andrade PAM, Bini D, Durrer A, Robin A, Bouillet JP, Andreote FD, and Cardoso EJBN
- Subjects
- Acidobacteria classification, Acidobacteria genetics, Brazil, Conservation of Natural Resources, DNA, Bacterial genetics, Firmicutes classification, Firmicutes genetics, Proteobacteria classification, Proteobacteria genetics, RNA, Ribosomal, 16S genetics, Rhizosphere, Soil chemistry, Trees physiology, Acacia physiology, Acidobacteria isolation & purification, Eucalyptus physiology, Firmicutes isolation & purification, Microbial Consortia physiology, Proteobacteria isolation & purification, Soil Microbiology
- Abstract
Our knowledge of the rhizosphere bacterial communities in deep soils and the role of Eucalyptus and Acacia on the structure of these communities remains very limited. In this study, we targeted the bacterial community along a depth profile (0 to 800 cm) and compared community structure in monospecific or mixed plantations of Acacia mangium and Eucalyptus grandis. We applied quantitative PCR (qPCR) and sequence the V6 region of the 16S rRNA gene to characterize composition of bacterial communities. We identified a decrease in bacterial abundance with soil depth, and differences in community patterns between monospecific and mixed cultivations. Sequence analysis indicated a prevalent effect of soil depth on bacterial communities in the mixed plant cultivation system, and a remarkable differentiation of bacterial communities in areas solely cultivated with Eucalyptus. The groups most influenced by soil depth were Proteobacteria and Acidobacteria (more frequent in samples between 0 and 300 cm). The predominant bacterial groups differentially displayed in the monospecific stands of Eucalyptus were Firmicutes and Proteobacteria. Our results suggest that the addition of an N2-fixing tree in a monospecific cultivation system modulates bacterial community composition even at a great depth. We conclude that co-cultivation systems may represent a key strategy to improve soil resources and to establish more sustainable cultivation of Eucalyptus in Brazil.
- Published
- 2017
- Full Text
- View/download PDF
46. Brazilian adaptation of the Hotel Task: A tool for the ecological assessment of executive functions.
- Author
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Cardoso CO, Zimmermann N, Paraná CB, Gindri G, de Pereira APA, and Fonseca RP
- Abstract
Over recent years, neuropsychological research has been increasingly concerned with the need to develop more ecologically valid instruments for the assessment of executive functions. The Hotel Task is one of the most widely used ecological measures of executive functioning, and provides an assessment of planning, organization, self-monitoring and cognitive flexibility., Objective: The goal of this study was to adapt the Hotel Task for use in the Brazilian population., Methods: The sample comprised 27 participants (three translators, six expert judges, seven healthy adults, ten patients with traumatic brain injuries and one hotel manager). The adaptation process consisted of five steps, which were repeated until a satisfactory version of the task was produced. The steps were as follows:(1) Translation;(2) Development of new stimuli and brainstorming among the authors;(3) Analysis by expert judges;(4) Pilot studies;(5) Assessment by an expert in business administration and hotel management., Results: The adapted version proved adequate and valid for the assessment of executive functions. However, further research must be conducted to obtain evidence of the reliability, as well as the construct and criterion validity, sensitivity and specificity, of the Hotel Task., Conclusion: Many neurological and/or psychiatric populations may benefit from the adapted task, since it may make significant contributions to the assessment of dysexecutive syndromes and their impact on patient functioning., Competing Interests: Disclosure: The authors report no conflicts of interest.
- Published
- 2015
- Full Text
- View/download PDF
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