Search

Your search keyword '"Del Duca, Sara"' showing total 29 results
Start Over Author "Del Duca, Sara"
29 results on '"Del Duca, Sara"'

2. Exploring the nexus between the composition of essential oil and the bacterial phytobiome associated with different compartments of the medicinal plants Origanum vulgare ssp. vulgare, O. vulgare ssp. hirtum, and O. heracleoticum

Author

Semenzato, Giulia, Del Duca, Sara, Vassallo, Alberto, Zaccaroni, Marco, Mucci, Nadia, Greco, Claudia, Padula, Anna, Castronovo, Lara Mitia, Chioccioli, Sofia, Pistelli, Luisa, Ascrizzi, Roberta, De Leo, Marinella, Emiliani, Giovanni, Biffi, Sauro, and Fani, Renato

Published
2023
Full Text
View/download PDF

4. The Great Gobi A Strictly Protected Area: Characterization of Soil Bacterial Communities from Four Oases

Author

Esposito, Antonia, primary, Del Duca, Sara, additional, Vitali, Francesco, additional, Bigiotti, Gaia, additional, Mocali, Stefano, additional, Semenzato, Giulia, additional, Papini, Alessio, additional, Santini, Giacomo, additional, Mucci, Nadia, additional, Padula, Anna, additional, Greco, Claudia, additional, Nasanbat, Battogtokh, additional, Davaakhuu, Gantulga, additional, Bazarragchaa, Munkhtsetseg, additional, Riga, Francesco, additional, Augugliaro, Claudio, additional, Cecchi, Lorenzo, additional, Fani, Renato, additional, and Zaccaroni, Marco, additional

Published
2024
Full Text
View/download PDF

5. Impacts of Soil Management and Sustainable Plant Protection Strategies on Soil Biodiversity in a Sangiovese Vineyard.

Author

Del Duca, Sara, Mocali, Stefano, Vitali, Francesco, Fabiani, Arturo, Cucu, Maria Alexandra, Valboa, Giuseppe, d'Errico, Giada, Binazzi, Francesco, Storchi, Paolo, Perria, Rita, and Landi, Silvia

Subjects
SOIL biodiversity, SOIL management, SOIL protection, SOIL biology, PLANT protection
Abstract

Vine growing is one of the most economically important sectors of Mediterranean agriculture, but its cultivation practices are highly detrimental to the environment and the associated biota. The application of both natural products inducing endogenous plant defense mechanisms and natural soil management systems represents a potential solution for the preservation and improvement of soil health and biodiversity. The Life Green Grapes project aimed at evaluating the effects of different natural and sustainable vine protection strategies and soil management on vineyard edaphic communities. Soil TOC, TN, C:N ratio, CaCO3 content and pH were measured. Microbial communities (bacteria and fungi) were characterized through NGS, while nematodes and microarthropods were isolated and identified. Obtained data highlighted a relationshipbetween bacteria, fungi and nematodes with soil chemistry, and an effect of the different soil management on the single and total edaphic communities. Network analysis evidenced a positive effect of the application of sustainable soil managements on the relationships among the different investigated soil trophic levels, suggesting that more natural soil managements allow a better interaction between soil organisms. In conclusion, this work confirms the importance of the application of sustainable and natural soil management practices in agricultural ecosystems, with the aim of conserving and improving soil biodiversity. [ABSTRACT FROM AUTHOR]

Published
2024
Full Text
View/download PDF

8. Genomic, Molecular, and Phenotypic Characterization of Arthrobacter sp. OVS8, an Endophytic Bacterium Isolated from and Contributing to the Bioactive Compound Content of the Essential Oil of the Medicinal Plant Origanum vulgare L.

Author

Semenzato, Giulia, primary, Del Duca, Sara, additional, Vassallo, Alberto, additional, Bechini, Angela, additional, Calonico, Carmela, additional, Delfino, Vania, additional, Berti, Fabiola, additional, Vitali, Francesco, additional, Mocali, Stefano, additional, Frascella, Angela, additional, Emiliani, Giovanni, additional, and Fani, Renato, additional

Published
2023
Full Text
View/download PDF

12. Endophytic Bacteria and Essential Oil from Origanum vulgare ssp. vulgare Share Some VOCs with an Antibacterial Activity

Author

Polito, Giulia, primary, Semenzato, Giulia, additional, Del Duca, Sara, additional, Castronovo, Lara Mitia, additional, Vassallo, Alberto, additional, Chioccioli, Sofia, additional, Borsetti, Duccio, additional, Calabretta, Vittoria, additional, Puglia, Anna Maria, additional, Fani, Renato, additional, and Palumbo Piccionello, Antonio, additional

Published
2022
Full Text
View/download PDF

14. Genomic Analysis of Endophytic Bacillus-Related Strains Isolated from the Medicinal Plant Origanum vulgare L. Revealed the Presence of Metabolic Pathways Involved in the Biosynthesis of Bioactive Compounds

Author

Semenzato, Giulia, primary, Alonso-Vásquez, Tania, additional, Del Duca, Sara, additional, Vassallo, Alberto, additional, Riccardi, Christopher, additional, Zaccaroni, Marco, additional, Mucci, Nadia, additional, Padula, Anna, additional, Emiliani, Giovanni, additional, Palumbo Piccionello, Antonio, additional, Puglia, Anna Maria, additional, and Fani, Renato, additional

Published
2022
Full Text
View/download PDF

19. Exploring the Gut Microbiome Alteration of the European Hare (Lepus europaeus) after Short-Term Diet Modifications

Author

Padula, Anna, primary, Bambi, Marina, additional, Mengoni, Chiara, additional, Greco, Claudia, additional, Mucci, Nadia, additional, Greco, Ilaria, additional, Masoni, Alberto, additional, Del Duca, Sara, additional, Bacci, Giovanni, additional, Santini, Giacomo, additional, Fani, Renato, additional, and Zaccaroni, Marco, additional

Published
2021
Full Text
View/download PDF

24. The Cultivable Bacterial Microbiota Associated to the Medicinal Plant Origanum vulgare L.: From Antibiotic Resistance to Growth-Inhibitory Properties

Author

Castronovo, Lara Mitia, primary, Calonico, Carmela, additional, Ascrizzi, Roberta, additional, Del Duca, Sara, additional, Delfino, Vania, additional, Chioccioli, Sofia, additional, Vassallo, Alberto, additional, Strozza, Iolanda, additional, De Leo, Marinella, additional, Biffi, Sauro, additional, Bacci, Giovanni, additional, Bogani, Patrizia, additional, Maggini, Valentina, additional, Mengoni, Alessio, additional, Pistelli, Luisa, additional, Lo Nostro, Antonella, additional, Firenzuoli, Fabio, additional, and Fani, Renato, additional

Published
2020
Full Text
View/download PDF

26. Endophytic Bacteria Associated with Origanum heracleoticum L. (Lamiaceae) Seeds

Author

Giulia Semenzato, Teresa Faddetta, Sara Falsini, Sara Del Duca, Antonia Esposito, Anna Padula, Claudia Greco, Nadia Mucci, Marco Zaccaroni, Anna Maria Puglia, Alessio Papini, Renato Fani, Semenzato, Giulia, Faddetta, Teresa, Falsini, Sara, Del Duca, Sara, Esposito, Antonia, Padula, Anna, Greco, Claudia, Mucci, Nadia, Zaccaroni, Marco, Puglia, Anna Maria, Papini, Alessio, and Fani, Renato

Subjects
Microbiology (medical), antimicrobial compounds, Virology, phytobiome, microbiome, Settore BIO/19 - Microbiologia Generale, Microbiology, essential oil, medicinal plants, seed-associated endophytes
Abstract

Seed-associated microbiota are believed to play a crucial role in seed germination, seedling establishment, and plant growth and fitness stimulation, due to the vertical transmission of a core microbiota from seeds to the next generations. It might be hypothesized that medicinal and aromatic plants could use the seeds as vectors to vertically transfer beneficial endophytes, providing plants with metabolic pathways that could influence phytochemicals production. Here, we investigated the localization, the structure and the composition of the bacterial endophytic population that resides in Origanum heracleoticum L. seeds. Endocellular bacteria, surrounded by a wall, were localized close to the aleurone layer when using light and transmission electron microscopy. From surface-sterilized seeds, cultivable endophytes were isolated and characterized through RAPD analysis and 16S RNA gene sequencing, which revealed the existence of a high degree of biodiversity at the strain level and the predominance of the genus Pseudomonas. Most of the isolates grew in the presence of six selected antibiotics and were able to inhibit the growth of clinical and environmental strains that belong to the Burkholderia cepacia complex. The endophytes production of antimicrobial compounds could suggest their involvement in plant secondary metabolites production and might pave the way to endophytes exploitation in the pharmaceutical field.

Published
2022
Full Text
View/download PDF

27. Unravelling the DNA sequences carried by Streptomyces coelicolor membrane vesicles

Author

Teresa Faddetta, Alberto Vassallo, Sara Del Duca, Giuseppe Gallo, Renato Fani, Anna Maria Puglia, Faddetta, Teresa, Vassallo, Alberto, Del Duca, Sara, Gallo, Giuseppe, Fani, Renato, and Puglia, Anna Maria

Subjects
Multidisciplinary, Bacteria, Bacterial Proteins, Base Sequence, Nucleic Acids, RNA, Streptomyces coelicolor, Gene Expression Regulation, Bacterial, Settore BIO/19 - Microbiologia Generale, Lipids
Abstract

Membrane vesicles (MVs) are spherical particles with nanoscale dimensions and characterized by the presence of diverse cargos, such as nucleic acids, proteins, lipids, and cellular metabolites. Many examples of (micro)organisms producing MVs are reported in literature. Among them, bacterial MVs are of particular interest because they are now considered as the fourth mechanism of horizontal gene transfer. Streptomyces bacteria are well-known for their ecological roles and ability to synthesize bioactive compounds, with Streptomyces coelicolor being the model organism. It was previously demonstrated that it can produce distinct populations of MVs characterized by different protein and metabolite cargos. In this work we demonstrated for the first time that MVs of S. coelicolor carry both DNA and RNA and that their DNA content represents the entire chromosome of the bacterium. These findings suggest that MV DNA could have a role in the evolution of Streptomyces genomes and that MVs could be exploited in new strain engineering strategies.

Published
2022

28. The Operon as a Conundrum of Gene Dynamics and Biochemical Constraints: What We Have Learned from Histidine Biosynthesis

Author

Sara Del Duca, Giulia Semenzato, Antonia Esposito, Pietro Liò, Renato Fani, Del Duca, Sara [0000-0002-2353-3411], Semenzato, Giulia [0000-0001-6210-8197], Fani, Renato [0000-0001-9114-2335], and Apollo - University of Cambridge Repository

Subjects
Evolution, Molecular, histidine metabolic pathway, Bacteria, piecewise model, Multigene Family, operon evolution, Operon, Genetics, Histidine, thermophily, Genetics (clinical), metabolon
Abstract

Operons represent one of the leading strategies of gene organization in prokaryotes, having a crucial influence on the regulation of gene expression and on bacterial chromosome organization. However, there is no consensus yet on why, how, and when operons are formed and conserved, and many different theories have been proposed. Histidine biosynthesis is a highly studied metabolic pathway, and many of the models suggested to explain operons origin and evolution can be applied to the histidine pathway, making this route an attractive model for the study of operon evolution. Indeed, the organization of his genes in operons can be due to a progressive clustering of biosynthetic genes during evolution, coupled with a horizontal transfer of these gene clusters. The necessity of physical interactions among the His enzymes could also have had a role in favoring gene closeness, of particular importance in extreme environmental conditions. In addition, the presence in this pathway of paralogous genes, heterodimeric enzymes and complex regulatory networks also support other operon evolution hypotheses. It is possible that histidine biosynthesis, and in general all bacterial operons, may result from a mixture of several models, being shaped by different forces and mechanisms during evolution.

Published
2023
Full Text
View/download PDF

29. Genomic Analysis of Endophytic Bacillus-Related Strains Isolated from the Medicinal Plant Origanum vulgare L. Revealed the Presence of Metabolic Pathways Involved in the Biosynthesis of Bioactive Compounds

Author

Giulia Semenzato, Tania Alonso-Vásquez, Sara Del Duca, Alberto Vassallo, Christopher Riccardi, Marco Zaccaroni, Nadia Mucci, Anna Padula, Giovanni Emiliani, Antonio Palumbo Piccionello, Anna Maria Puglia, Renato Fani, Semenzato, Giulia, Alonso-Vásquez, Tania, Del Duca, Sara, Vassallo, Alberto, Riccardi, Christopher, Zaccaroni, Marco, Mucci, Nadia, Padula, Anna, Emiliani, Giovanni, Palumbo Piccionello, Antonio, Puglia, Anna Maria, and Fani, Renato

Subjects
Microbiology (medical), bacterial endophytes, plant growth-promoting bacteria, Virology, microbiome, antimicrobial resistance, Settore CHIM/06 - Chimica Organica, essential oil, Microbiology
Abstract

Multidrug-resistant pathogens represent a serious threat to human health. The inefficacy of traditional antibiotic drugs could be surmounted through the exploitation of natural bioactive compounds of which medicinal plants are a great reservoir. The finding that bacteria living inside plant tissues, (i.e., the endophytic bacterial microbiome) can influence the synthesis of the aforementioned compounds leads to the necessity of unraveling the mechanisms involved in the determination of this symbiotic relationship. Here, we report the genome sequence of four endophytic bacterial strains isolated from the medicinal plant Origanum vulgare L. and able to antagonize the growth of opportunistic pathogens of cystic fibrosis patients. The in silico analysis revealed the presence of gene clusters involved in the production of antimicrobial compounds, such as paeninodin, paenilarvins, polymyxin, and paenicidin A. Endophytes’ adaptation to the plant microenvironment was evaluated through the analysis of the presence of antibiotic resistance genes in the four genomes. The diesel fuel degrading potential was also tested. Strains grew in minimum media supplemented with diesel fuel, but no n-alkanes degradation genes were found in their genomes, suggesting that diesel fuel degradation might occur through other steps involving enzymes catalyzing the oxidation of aromatic compounds.

Published
2022
Full Text
View/download PDF

Catalog

Books, media, physical & digital resources
See catalog results