80 results on '"Ramos, Vítor"'
Search Results
52. Palytoxin and Analogs: Biological and Ecological Effects
- Author
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Ramos, Vítor, primary and Vasconcelos, Vítor, additional
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- 2010
- Full Text
- View/download PDF
53. Effects of Marine Toxins on the Reproduction and Early Stages Development of Aquatic Organisms
- Author
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Vasconcelos, Vítor, primary, Azevedo, Joana, additional, Silva, Marisa, additional, and Ramos, Vítor, additional
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- 2010
- Full Text
- View/download PDF
54. Mycorrhizal types in the Mediterranean Basin: safety teaching and training
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Azul, Anabela Marisa, primary, Ramos, Vítor, additional, Pato, Anabela, additional, Azenha, Matilde, additional, and Freitas, Helena, additional
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- 2008
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55. Picocyanobacteria From a Clade of Marine Cyanobium Revealed Bioactive Potential Against Microalgae, Bacteria, and Marine Invertebrates.
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Costa, Maria Sofia, Costa, Margarida, Ramos, Vítor, Leão, Pedro N., Barreiro, Aldo, Vasconcelos, Vítor, and Martins, Rosário
- Subjects
CYANOBACTERIA ,CYANOBACTERIAL toxins ,MARINE invertebrates ,MICROALGAE ,PSEUDOMONAS ,ARTEMIA - Abstract
The production of bioactive compounds either toxic or with pharmacological applications by cyanobacteria is well established. However, picoplanktonic forms within this group of organisms have rarely been studied in this context. In this study, the toxicological potential of picocyanobacteria from a clade of marineCyanobiumstrains isolated from the Portuguese coast was examined using different biological models. First, strains were identified by applying morphological and molecular approaches and cultured under lab conditions. A crude extract and three fractions reflecting a preliminary segregation of lipophilic metabolites were tested for toxicity with the marine microalgaNannochloropsissp., the bacteriaPseudomonassp., the brine shrimpArtemia salina,and fertilized eggs of the sea urchinParacentrotus lividus. No significant apparent adverse effects were noted againstArtemia salina.However, significant adverse effects were found in all other assays, with an inhibition ofNannochloropsissp. andPseudomonassp. growth and marked reduction inParacentrotus lividuslarvae length. The results obtained indicated thatCyanobiumgenus may serve as a potential source of interesting bioactive compounds and emphasize the importance of also studying smaller picoplanktonic fractions of marine cyanobacteria. [ABSTRACT FROM AUTHOR]
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- 2015
- Full Text
- View/download PDF
56. Early effects of fire on herbaceous vegetation and mycorrhizal symbiosis in high altitude grasslands of Natural Park of Estrela Mountain (PNSE).
- Author
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Azul, Anabela, Ramos, Vítor, and Sales, Fátima
- Abstract
Severe fires over the last decade have transformed the high altitude grassland biogenetic reserve in the Natural Park of Estrela Mountain (PNSE) of Portugal. Yet, there is little information about the impacts of the fires above and below ground. We assessed the species composition, richness and frequency of the herbaceous vegetation. We characterized the mycorrhizal symbiosis and analysed the soil properties in three cervunal areas of which one was destroyed by a severe fire in 2003. The results indicate that plant community in high altitude grassland of PNSE are rather poor in species but the number may increase after fire. The most remarkable change in the herbaceous vegetation after fire was the abrupt increase of Festuca trichophylla in the burnt area, to the detriment and abrupt decrease of Nardus stricta. Arbuscular mycorrhizas (AM) were the most widespread symbioses in all three grasslands. AM colonization of F. trichophylla was significantly lower in burnt grassland but the AM colonization in N. stricta increased. There was also a higher phosphorous content in soil of the burnt grassland. We put forward a hypothesis about the impacts of recurrent fires above and below ground and discuss its implications to functioning of high altitude ecosystems. [ABSTRACT FROM AUTHOR]
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- 2011
- Full Text
- View/download PDF
57. 111. State of the Art of Palytoxin and Analogs Analytical Methods for Seafood Monitoring
- Author
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Vasconcelos, Vitor, Azevedo, Joana, Silva, Marisa, and Ramos, Vitor
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- 2012
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58. Desvantagem socio-económica, etnicidade e consumo de álcool na adolescência.
- Author
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GASPAR, TÂNIA, GONÇALVES, ALDINA, RAMOS, VÍTOR, and MATOS, MARGARIDA G.
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- 2006
59. 332 Predictors and prognostic value of contrast-induced nephropathy in patients undergoing primary angioplasty
- Author
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Gaspar, Antonio, Costa, Joao, Ramos, Vitor, Ribeiro, Silvia, Vieira, Catarina, Nabais, Sérgio, Rocha, Sergia, Azevedo, Pedro, Pereira, Miguel, Salgado, Alberto, and Correia, Adelino
- Published
- 2011
- Full Text
- View/download PDF
60. 053 Acute coronary syndrome in octogenarians: what challenges beyond age?
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Gaspar, Antonio, Ribeiro, Silvia, Vieira, Catarina, Ramos, Vitor, Nabais, Sérgio, Rocha, Sergia, Azevedo, Pedro, Pereira, Miguel, Salgado, Alberto, and Correia, Adelino
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- 2011
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61. 037 Prevalence and prognostic value of acute or subacute noncardiac conditions in patients with acute coronary syndrome
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Gaspar, Antonio, Nabais, Sérgio, Ribeiro, Silvia, Vieira, Catarina, Ramos, Vitor, Rocha, Sergia, Azevedo, Pedro, Pereira, Miguel, Salgado, Alberto, and Correia, Adelino
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- 2011
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62. Génie de la littérature française (1600-1800) Raymond Picard
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Ramos, Vítor
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- 1972
63. Historiettes Tallemant des Réaux G. Delassault
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Ramos, Vítor
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- 1961
64. Histoire des Littératures, III, Littératures françaises, connexes et marginales Raymond Queneau
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Ramos, Vítor
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- 1961
65. La Tragédie Jacques Morel
- Author
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Ramos, Vítor
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- 1967
66. Factores determinantes do aumento de gastos com medicamentos nos S.M.S
- Author
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Ramos, Vítor M. B.
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- 1981
67. Cyrano de Bergerac and the Polemics of Modernity Erica Harth
- Author
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Ramos, Vitor
- Published
- 1971
68. Lettres Cyrano de Bergerac Luciano Erba
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Ramos, Vítor
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- 1968
69. Picocyanobacteria From a Clade of Marine Cyanobium Revealed Bioactive Potential Against Microalgae, Bacteria, and Marine Invertebrates
- Author
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Costa, Margarida, Leão, Pedro N., Martins, Rosário, Costa, Maria Sofia, Ramos, Vítor, Barreiro, Aldo, and Vasconcelos, Vítor
- Subjects
14. Life underwater - Abstract
The production of bioactive compounds either toxic or with pharmacological applications by cyanobacteria is well established. However, picoplanktonic forms within this group of organisms have rarely been studied in this context. In this study, the toxicological potential of picocyanobacteria from a clade of marine Cyanobium strains isolated from the Portuguese coast was examined using different biological models. First, strains were identified by applying morphological and molecular approaches and cultured under lab conditions. A crude extract and three fractions reflecting a preliminary segregation of lipophilic metabolites were tested for toxicity with the marine microalga Nannochloropsis sp., the bacteria Pseudomonas sp., the brine shrimp Artemia salina, and fertilized eggs of the sea urchin Paracentrotus lividus. No significant apparent adverse effects were noted against Artemia salina. However, significant adverse effects were found in all other assays, with an inhibition of Nannochloropsis sp. and Pseudomonas sp. growth and marked reduction in Paracentrotus lividus larvae length. The results obtained indicated that Cyanobium genus may serve as a potential source of interesting bioactive compounds and emphasize the importance of also studying smaller picoplanktonic fractions of marine cyanobacteria.
70. As confrarias e irmandades no direito particular portugués
- Author
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Dionísio Ramos, Vítor Emanuel and Campos Martínez, Francisco José.
- Subjects
Tesis y disertaciones académicas - Abstract
Tesina-Universidad Pontificia de Salamanca, Facultad de Derecho Canónico, 2022, Se hace un estudio sobre la necesidad, en la Iglesia, de una legislación propia en materia de protección de datos y su adecuación al RGPD.
71. Picocyanobacteria From a Clade of Marine Cyanobium Revealed Bioactive Potential Against Microalgae, Bacteria, and Marine Invertebrates
- Author
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Costa, Margarida, Leão, Pedro N., Martins, Rosário, Costa, Maria Sofia, Ramos, Vítor, Barreiro, Aldo, and Vasconcelos, Vítor
- Subjects
14. Life underwater - Abstract
The production of bioactive compounds either toxic or with pharmacological applications by cyanobacteria is well established. However, picoplanktonic forms within this group of organisms have rarely been studied in this context. In this study, the toxicological potential of picocyanobacteria from a clade of marine Cyanobium strains isolated from the Portuguese coast was examined using different biological models. First, strains were identified by applying morphological and molecular approaches and cultured under lab conditions. A crude extract and three fractions reflecting a preliminary segregation of lipophilic metabolites were tested for toxicity with the marine microalga Nannochloropsis sp., the bacteria Pseudomonas sp., the brine shrimp Artemia salina, and fertilized eggs of the sea urchin Paracentrotus lividus. No significant apparent adverse effects were noted against Artemia salina. However, significant adverse effects were found in all other assays, with an inhibition of Nannochloropsis sp. and Pseudomonas sp. growth and marked reduction in Paracentrotus lividus larvae length. The results obtained indicated that Cyanobium genus may serve as a potential source of interesting bioactive compounds and emphasize the importance of also studying smaller picoplanktonic fractions of marine cyanobacteria.
72. Brasil - França num romance francês de 1839
- Author
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Ramos, Vítor, primary
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- 1972
- Full Text
- View/download PDF
73. Biocontrol ability and mechanism of the endophyte Penicillium commune CIMO 14FM009 against olive anthracnose
- Author
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Silva, Sofia Teixeira da, Baptista, Paula, and Ramos, Vítor Manuel Capela
- Subjects
Olea europaea L ,Colletotrichum acutatum ,Volatile compounds ,Domínio/Área Científica::Engenharia e Tecnologia::Outras Engenharias e Tecnologias ,Inhibition - Abstract
Olive (Olea europaea L.) is a crop of great economic and cultural interest for the Mediterranean Basin, including Portugal. Olive anthracnose, caused by several Colletotrichum species, is the most economically harmful fruit disease of olive crop worldwide, by causing high losses in fruit yield and oil quality. Strategies to control this disease are mostly based on the use of copper-based products, with limited efficacy and not compatible with sustainable production systems. The development of new, more effective and safe tools for olive anthracnose control is therefore an urgent need. In this regard, the exploitation of endophytes as biological control agents against anthracnose, may holds great promise. Thus, this work aimed to evaluate the ability of the endophyte Penicillium commune to induced the production of volatile organic compounds within olive tree tissues with antifungal activity towards Colletotrichum acutatum. For this purpose, branches of five olive trees were inoculated with buffer (control), endophyte, pathogen (C. acutatum), or endophyte and one month later with the pathogen (endophyte+pathogen). After 0, 3 and 24h of inoculation with the pathogen, both leaves and fruits were collected for evaluation of their composition on volatiles (by HS-SPME- GC/MS) and of the effect of plant-derived volatiles towards C. acutatum. The volatile profile varied over time and between treatments, especially in fruits. It was at 3 h where the greatest differences between treatments were recorded, with fruits from endophyte+pathogen inoculated branches being differentiated from the other treatments due to the emission of 7-octen-2-ol, 2,6-dimethyl-, 3-octanol, 3,7-dimethyl- and propanoic acid, 2-methyl-, 3-methyl-2-butenyl ester. The analysis of the leaves showed a different pattern at 3h, with leaves from branches inoculated with endophyte or endophyte+pathogen exhibiting a similar volatile profile, but distinct from pathogen treatment. Plant-derived volatiles induced by P. commune reduced significantly the growth and sporulation of C. acutatum. Although preliminary, these findings provide new viable possibilities of controlling olive anthracnose using the endophyte P. commune and/or volatiles. These volatile inhibitory metabolites should be further tested against anthracnose. A oliveira (Olea europaea L.) é uma cultura de grande interesse económico e cultural para a Bacia Mediterrânica, incluindo Portugal. A gafa, causada por várias espécies de Colletotrichum, é a doença frutífera economicamente mais nociva da cultura da azeitona a nível mundial, causando elevadas perdas na produção de frutos e na qualidade do azeite. As estratégias para controlar esta doença baseiam-se principalmente na utilização de produtos à base de cobre, com eficácia limitada e não compatíveis com sistemas de produção sustentáveis. O desenvolvimento de ferramentas novas, mais eficazes e seguras para o controlo da gafa é, portanto, uma necessidade urgente. A este respeito, a exploração de endófitos como agentes de controlo biológico contra a gafa, pode ser uma das soluções. Assim, este trabalho teve como objetivos avaliar a capacidade do endófito Penicillium commune, para induzir a produção de compostos orgânicos voláteis dentro dos tecidos da oliveira com atividade antifúngica para o Colletotrichum acutatum. Para tal, ramos de cinco oliveiras foram inoculados com tampão (controlo), endófito, patogéneo (C. acutatum), ou endófito e um mês depois com o patogéneo (endófito+patófito). Após 0, 3 e 24h da inoculação com o patogéneo, tanto as folhas como os frutos foram colhidos para avaliação da sua composição em voláteis (por HS-SPME-GC/MS) e do efeito dos voláteis derivados de plantas contra o C. acutatum. O perfil volátil variou ao longo do tempo e entre tratamentos, principalmente em frutos. Foi às 3h onde se registaram as maiores diferenças entre os tratamentos, sendo os frutos de ramos inoculados de endófito+patogéneo diferenciados dos outros tratamentos devido à emissão de 7-octen-2- ol, 2,6-dimetil-, 3-octanol, 3,7-dimetil- e ácido propanóico, 2-metil-, 3-metil-2-éster de butil. A análise das folhas mostrou um padrão diferente às 3h, com folhas de ramos inoculados com endófito ou endófito+patógeneo exibindo um perfil volátil semelhante, mas distinto do tratamento com patogéneo. Os voláteis derivados de plantas induzidos por P. commune reduziram significativamente o crescimento e a esporulação de C. acutatum. Embora preliminares, estas descobertas oferecem novas possibilidades viáveis de controlar a gafa utilizando o endófito P. commune e/ou os voláteis. Estes metabolitos voláteis inibidores devem ser testados contra a gafa. This work is supported by FEDER funds through the COMPETE (Operational Program for Competitiveness Factors) and by National funds through the FCT (Foundation for Science and Technology) in the scope of the project POCI-01-0145-FEDER-031133 “MicOlives - Exploiting plant induced resistance by beneficial fungi as a new sustainable approach to olive crop protection”.
- Published
- 2022
74. Design and characterization of molecular markers for the detection of predation of Trioza erytreae
- Author
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Moudjeber, Rym, Baptista, Paula, and Ramos, Vítor Manuel Capela
- Subjects
COI ,LSU ,Natural enemies ,HUANGLONGBING ,SSU ,Domínio/Área Científica::Ciências Agrárias::Biotecnologia Agrária e Alimentar ,African citrus psyllid - Abstract
Trioza erytreae (Hemiptera, Psylloidea) is an important citrus pest being also one of the vectors of Candidatus Liberibacter spp., the causal bacterial agents of citrus HUANGLONGBING (greening) disease, deemed as the most devastating disease for citrus crops. In 2014, T. erytreae was detected in NW Iberian Peninsula, being the first detection of the pest in continental Europe. The spreading of T. erytreae towards Iberian Peninsula is being fast, threatening the citrus production in Europe. Due to the progressively strict EU policies on pesticides, their harmful effects and not successful eradication of T. erytreae attempts, the use of insecticides is regarded as impracticable. Thus, biocontrol using natural enemies is seen as an environmentally sound and effective approach to limited this pest. Hence, the main goal of this work was to develop PCR- based diagnostic methods that can detect for the presence of DNA from T. erytreae in the gut of arthropod predators. Fifteen T. erytreae species-specific primer sets targeting the mitochondrial COI, SSU and LSU regions were designed and tested for their specificity and sensitivity against phylogenetically-related psyllids. Among the 15 primers sets tested, two targeting the COI gene (T3F - T2R) and the rrnL gene (LSU_F2LSU_R1) showed to be highly specific and sensitive to detected T. erytreae DNA, inclusively when mixed at equal ratios with DNA of closely-related taxa of Trioza. The small size of the fragment amplified by these two primer sets (199 bp and 291 bp, for T3F - T2R and LSU_F2-LSU_R1, respectively), suggested their suitability to detected fragmented T. erytreae DNA in the gut of potential predators. Despite these promising results, the feasibility of these primer sets to recognize predators collected in natural settings must be validated in future works. Trioza erytreae (Hemiptera, Psylloidea) é uma importante praga dos citrinos, sendo também um dos vetores de Candidatus Liberibacter spp., o agente causal da doença huanglongbing (greening) dos citrinos, e considerada como sendo a mais devastadora na citricultura. Em 2014, foi detetada a presença de T. erytreae no noroeste da Península Ibérica, tendo sido esta a primeira vez reportada na Europa continental. A dispersão de T. erytreae na Península Ibérica esta a decorrer de forma rápida, ameaçando a produção de citrinos na Europa. Devido às políticas cada vez mais rigorosas da UE sobre o uso de pesticidas, os seus efeitos nocivos e tentativas fracassadas de erradicação de T. erytreae, tem levado à procura de alternativas. Assim, o biocontrolo usando inimigos naturais é visto como uma abordagem ambientalmente correta e eficaz para limitar esta praga. Assim, o principal objetivo deste trabalho foi desenvolver um método de diagnóstico baseados em PCR que permita detetar a presença de DNA de T. erytreae no intestino de predadores artrópodes. Quinze conjuntos de primers específicos de T. erytreae foram desenhados nas regiões mitocondriais COI, SSU e LSU, e testados quanto à sua especificidade e sensibilidade contra psilídeos filogeneticamente próximos de Triosa. De entre os 15 conjuntos de primers testados, dois desenhados no gene COI (T3F - T2R) e no gene rrnL (LSU_F2-LSU_R1) mostraram elevada especificidade e sensibilidade ao DNA de T. erytreae, permitindo a sua deteção quando misturado em proporções iguais com DNA de espécies taxonomicamente relacionados com Trioza. O reduzido tamanho do fragmento amplificado por estes dois conjuntos de primers (199 pb e 291 pb, para T3F - T2R e LSU_F2-LSU_R1, respetivamente), sugere a sua adequação para detetar fragmentos de DNA de T. erytreae no intestino de potenciais predadores. Apesar destes resultados promissores, a viabilidade dos dois conjuntos de primers para reconhecer predadores coletados em ambientes naturais deve ser validada em trabalhos futuros. This work is supported by the project PRE-HLB: Preventing HLB epidemics for ensuring citrus survival in Europe. H2020-SFS-2018-2 Topic SFS-05-2018-2019-2020 - New and emerging risks to plant health (no 817526). This work is supported by the project PRE-HLB: Preventing HLB epidemics for ensuring citrus survival in Europe. H2020-SFS-2018-2 Topic SFS-05-2018-2019-2020 - New and emerging risks to plant health (nº 817526)
- Published
- 2022
75. Characterization of leaf-associated fungi from olive cultivars with different levels of resistance to anthracnose
- Author
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Bahri, Hamdi, Baptista, Paula, and Ramos, Vítor Manuel Capela
- Subjects
Host specificity ,Colletotrichum ,Endophytes ,Domínio/Área Científica::Ciências Agrárias::Biotecnologia Agrária e Alimentar ,Ciências Agrárias::Biotecnologia Agrária e Alimentar [Domínio/Área Científica] ,Olea europaea ,Epiphytes - Abstract
Olive anthracnose, caused by Colletotrichum spp., is one of the most damaging fruit diseases in olive crops worldwide. Their control is very difficult and relies mostly on the use of copper-based fungicides. The plant-associate fungal community has been increasingly recognized for playing an important role in plant health. Thus, in this work, the leaf-associated fungi of olive cultivars with different levels of resistance to anthracnose were characterized to identify potential fungi implicated in host resistance. A culture-dependent approach was used to assess both epiphytic and endophytic fungal communities of leaves of olive cultivars Madural (susceptible to anthracnose) and Cobrançosa (moderately tolerant), and the isolates obtained were identified by rRNA sequencing. Overall, Ascomycota phylum and Aureobasidium genus were the most dominant, being epiphytes significantly more diverse and abundant than endophytes. Among the genera identified in the most-resistant cultivar, Aspergillus and Pseudocercospora were the most frequently isolated within epiphytic and endophytic communities, respectively; whereas in the susceptible cultivar, Aureobasidium and Didymocyrtis, were the most frequently isolated within epiphytic and endophytic communities, respectively. The host plant (at cultivar level) had a structuring effect on the composition of fungal communities of leaves, being this effect greater on epiphytes than on endophytes. Thus, it is likely that each cultivar selects specific fungal taxa, which may lead to specific feedbacks on fitness of plant genotypes. In total, 20 fungal taxa (15 endophytes and 5 epiphytes) were responsible for more than 50% of the dissimilarity found on fungal community between cultivars. Among these, three taxa from the Phaeomoniellaceae family and one unidentified fungus, were the most discriminant. Their functional role needs to be studied in the future, because they might be important in conferring host plant resistance towards anthracnose. A gafa, causada por diversos fungos do género Colletotrichum, é das doenças que mais prejuízos causa nos olivais em todo o mundo. A sua luta é muito difícil e é feita com recurso a fungicidas à base de cobre. A comunidade fúngica associada às plantas tem sido cada vez mais reconhecida por desempenhar um papel importante na sanidade das plantas. Assim, neste trabalho, foram caracterizados fungos associados a folhas de cultivares de oliveira, com diferentes níveis de suscetibilidade à gafa, para identificar fungos potencialmente responsáveis por estas diferenças de resistência. Para tal, recorreu-se ao método dependente de cultivo para avaliar as comunidades fúngicas epífitas e endófitas em folhas das cultivares Madural (suscetível à gafa) e Cobrançosa (moderadamente tolerante), tendo os isolados obtidos sido identificados pela sequenciação da região ITS do rRNA nuclear. Globalmente, o filo Ascomycota e o género Aureobasidium foram os mais dominantes, enquanto que os epífitos revelaram ser significativamente mais diversos e abundantes do que os endófitos. Entre os géneros identificados na cultivar mais resistente, Aspergillus e Pseudocercospora foram os mais abundantes dentro das comunidades fúngicas epífitas e endofíticas, respetivamente; já na cultivar suscetível, Aureobasidium e Didymocyrtis, foram os géneros mais frequentemente isolados dentro das comunidades fúngicas epífitas e endofíticas, respetivamente. O genótipo da planta (ao nível da cultivar) teve um efeito significativo na composição da comunidade fúngica das folhas, sendo este efeito superior nos epífitos face aos endófitos. Parece, assim, que cada cultivar possui a capacidade de selecione uma espécie específica, que poderá ter repercussões positivas na planta hospedeira. No total, 20 espécies fúngicas (15 endófitos e 5 epífitos) foram responsáveis por mais de 50% da dissimilaridade encontrada na comunidade fúngica entre as cultivares. De entre estas, três espécies da família Phaeomoniellaceae e um fungo não identificado, foram os mais discriminantes. A função destas espécies na promoção de resistência na oliveira deverá ser estudada no futuro. This work is supported by FEDER funds through the COMPETE (Operational Program for Competitiveness Factors) and by National funds through the FCT (Foundation for Science and Technology) in the scope of the project POCI-01-0145-FEDER-031133 “MicOlives - Exploiting plant induced resistance by beneficial fungi as a new sustainable approach to olive crop protection”.
- Published
- 2019
76. Temporal dynamics of endophytic microbial communities colonizing olives infested and non-infested by olive fruit fly
- Author
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Lopes, Teresa José, Baptista, Paula, and Ramos, Vítor Manuel Capela
- Subjects
Orchard management ,Endophytes ,Ciências Agrárias::Biotecnologia Agrária e Alimentar [Domínio/Área Científica] ,Domínio/Área Científica::Ciências Agrárias::Biotecnologia Agrária e Alimentar ,Bactrocera oleae Rossi ,Susceptibility of olive cultivars ,Airborne microorganisms ,Maturation index - Abstract
Olive fruit fly, Bactrocera oleae (Rossi) (Diptera: Tephritidae) is the major insect pest of olive crop worldwide. Distinct olive cultivars exhibit different susceptibility to olive fruit fly infestation and the causes of this phenomenon are still unclear. Here, we wanted to disclose the role of biotic and abiotic factors in shaping the olive-associated endophytes and their implication in conferring different host susceptibilities to olive fly. The importance of air as a source of endophytes was additionally evaluated. Accordingly, the endophytic microbial composition of infested and non-infested fruits from cultivars Madural (susceptible to olive fly) and Cobrançosa (less susceptible) were studied over two maturation indexes in two olive orchards under organic and integrated management. Endophytic diversity assessed by rRNA sequencing of cultivable isolates revealed a larger consortium of bacteria associated to olives than fungi. The bacterial communities were predominantly composed of Proteobacteria and Actinobacteria while the fungal community was dominated by members belonging to Ascomycota. The overall assemblages of endophytes in fruits were shaped mainly by the maturation index, followed by the type of management and cultivar, being the level of infestation a negligible effect. Despite this, it was found a clear positive association of a set of endophytes with the resistant cultivar (Pseudomonas citronellolis, Rhodococcus fascians, Actinobacterium sp., Cladosporium sp. 2, Stereum sp. and Aspergillus flavus), organic orchard and non-infested fruits (Microbacterium paraoxydans, Kocuria sp., Penicillium solitum, Cladosporium sp3. and Vishniacozyma victoriae). The microbial composition of the air and the fruit endosphere were completely different, suggesting that there are other sources of endophytes. Our study provides potential microbial candidates to further evaluate their role on host cultivar susceptibility/resistance to fruit fly. A mosca da azeitona, Bactrocera oleae (Rossi) (Diptera: Tephritidae), é a praga mais importante da oliveira a nível mundial. Existem cultivares com diferentes graus de suscetibilidade à infestação pela mosca da azeitona e as causas deste fenômeno ainda não são claras. Neste trabalho, pretende-se estudar a influência de fatores bióticos e abióticos na estrutura e composição de endófitos da azeitona, e de que modo estes podem conferir diferenças de suscetibilidade nas cultivares. Adicionalmente, pretende-se avaliar a importância do ar como fonte de endófitos. Para tal, estudou-se a composição microbiana endofítica de azeitonas infestadas e não infestadas das cultivares Madural (susceptível à mosca da azeitona) e Cobrançosa (menos susceptível) ao longo de dois índices de maturação em dois olivais conduzidos em modo de produção biológico e integrado. A comunidade endofítica dos frutos avaliada através da sequenciação de rRNA de isolados cultiváveis, revelou uma maior abundância de bactérias face aos fungos. A comunidade bacteriana foi dominada por membros dos filos Proteobacteria e Actinobacteria, enquanto os fungos pertenciam maioritariamente ao filo Ascomycota. No geral, a composição da comunidade endofitica foi influenciada principalmente pelo índice de maturação, seguido pelo modo de produção e cultivar, tendo o nível de infestação um efeito reduzido. No entanto, foi identificado um conjunto de endófitos positivamente associados à cultivar resistente (Pseudomonas citronellolis, Rhodococcus fascians, Actinobacterium sp., Cladosporium sp. 2, Stereum sp. e Aspergillus flavus), ao modo de produção biológico e azeitonas não infestadas (Microbacterium paraoxydans, Kocuria sp., Penicillium solitum, Cladosporium sp3. e Vishniacozyma victoriae). A composição microbiana do ar e da endosfera dos frutos foram completamente diferentes, sugerindo que existem outras fontes de endófitos. No geral, este estudo fornece potenciais candidatos microbianos para avaliar melhor no futuro o seu papel na suscetibilidade / resistência da cultivar à mosca da azeitona. This work is supported by FEDER funds through the COMPETE (Operational Program for Competitiveness Factors) and by National funds through the FCT (Foundation for Science and Technology) in the scope of the project POCI-01-0145-FEDER-031133 “MicOlives - Exploiting plant induced resistance by beneficial fungi as a new sustainable approach to olive crop protection”.
- Published
- 2019
77. Fatores determinantes da não concretização em 20 anos, da autonomia de gestão administrativa e financeira nos cuidados de saúde primários (CSP) em Portugal : estudo de percepções de informadores-chave
- Author
-
Belchior, Maria José da Conceição, Lopes, Albino, and Ramos, Vítor Manuel Borges - Coorientador
- Abstract
Dissertação de Mestrado em Administração Pública Introdução – A Autonomia administrativa e financeira dos cuidados de saúde primários (CSP) está consagrada em vários diplomas legais, desde 1993, mas nunca foi implementada. O DL n.º 28/2008 de 22 de fevereiro, criou Agrupamentos de Centros de Saúde (ACeS), apenas com autonomia administrativa. Objetivos – Identificar fatores condicionantes da atribuição de entidade própria com autonomia administrativa e financeira aos ACeS e razões para a não concretização. Saber se os profissionais mais envolvidos nas reformas ocorridas ao longo destes anos, atribuem importância e se consideram ser vantajoso para este nível de cuidados, a autonomia administrativa e financeira. Métodos - Estudo qualitativo – realizadas 15 entrevistas semiestruturadas, baseadas em nove perguntas, a antigos e atuais decisores políticos (ex-ministros ou secretários de estado) e dirigentes de administrações regionais de saúde (ARS) ou ACeS. Resultados – As respostas corresponderam a 30.193 palavras. Foi feita análise do seu conteúdo. Obtiveram-se 76 categorias e 220 subcategorias. O enquadramento da análise foi feito tendo em conta as teorias da Gestão Pública, nomeadamente a “New Public Management”. Discussão e conclusões – A diversidade de perspetivas recolhidas, algumas delas antagónicas entre si, permitiram propor um quadro interpretativo multifacetado, sistematizável em torno de fatores explicativos que se enunciam no final do estudo. Introduction - The administrative and financial autonomy of primary health care (PHC) is enshrined in legislation since 1993, but was never implemented. The DL n.º. 28/2008 of 22 February, created groupings of health centers (ACeS), with administrative autonomy. Objectives - To identify determining factors for assigning own entity with administrative and financial autonomy to ACeS and reasons for non-completion. To know if professionals involved in the reforms that have occurred over the years attribute importance and consider administrative and financial autonomy to be advantageous for this level of health care. Methods - Qualitative study - 15 semi-structured interviews were conducted, based on nine questions, to former and current politicians (former ministers or secretaries of state) makers and leaders of regional health care administrations (ARS) or ACeS. Results - The answers corresponded to 30.193 words. Analysis of its contents was made. 76 categories and 200 subcategories were obtained. The framework of the analysis has been done taking into account the theories of Public Management, including the "New Public Management". Discussion and conclusions - The diversity of perspectives gathered, some of them contradicting one another, allowed to propose a multifaceted interpretive framework, systematical around explanatory factors that are set out at the end of the study. Introduction - The administrative and financial autonomy of primary health care (PHC) is enshrined in legislation since 1993, but was never implemented. The DL n.º. 28/2008 of 22 February, created groupings of health centers (ACeS), with administrative autonomy. Objectives - To identify determining factors for assigning own entity with administrative and financial autonomy to ACeS and reasons for non-completion. To know if professionals involved in the reforms that have occurred over the years attribute importance and consider administrative and financial autonomy to be advantageous for this level of health care. Methods - Qualitative study - 15 semi-structured interviews were conducted, based on nine questions, to former and current politicians (former ministers or secretaries of state) makers and leaders of regional health care administrations (ARS) or ACeS. Results - The answers corresponded to 30.193 words. Analysis of its contents was made. 76 categories and 200 subcategories were obtained. The framework of the analysis has been done taking into account the theories of Public Management, including the "New Public Management". Discussion and conclusions - The diversity of perspectives gathered, some of them contradicting one another, allowed to propose a multifaceted interpretive framework, systematical around explanatory factors that are set out at the end of the study.
- Published
- 2015
78. Serviço médico na periferia (1975-1982): Portugal desenvolvimento através da prestação de cuidados de saúde?
- Author
-
Cerqueira, Marta Sofia Marques, Feliciano, Fialho, and Ramos, Vítor
- Subjects
Necessidade básica ,Democracia participativa ,Políticas públicas ,Saúde ,Desenvolvimento Local ,Desenvolvimento ,Cuidados de Saúde Primários - Abstract
O presente trabalho incide sobre um período específico da história portuguesa que começa com o fim da ditadura, em 1974. O ano de 1975, época em que intelectuais, políticos, militares, imigrantes, e no geral, os portugueses inspirados pela possibilidade do estabelecimento de liberdades, até então adormecidas, unem-se com o propósito de construir a democracia. Portugal era um país cheio de esperanças. As letras das músicas de então revelam “o estado de graça” no qual o país se encontrava, entre elas umaa que gritava: “Só há liberdade a sério quando houver, a paz, o pão, habitação, saúde, educação, só há liberdade a sério quando houver liberdade de mudar e decidir, quando pertencer ao povo o que o povo produzir”. Este foi um tempo de oportunidades. Algumas destas oportunidades merecem ser contadas e relembradas, e entre elas o Serviço Médico na Periferia, sobre o qual este trabalho irá incidir. Este Serviço consistiu na acção de dotar a periferia do território nacional, de cuidados médicos, através da prestação obrigatória, durante um ano de serviço médico, fora das grandes urbes, a todos aqueles que acabavam o curso de medicina e o estágio profissionalizante de dois anos a seguir ao curso. O serviço foi criado em 1975 e extinto em 1982. Deste tempo pouco ou nada “reza a história escrita”. Porém este trabalho pretende recolher os testemunhos orais de alguns dos seus intervenientes. Em simultâneo, pretende-se também analisar as transformações sociais, culturais e económicas que resultaram desta experiência. O caminho que foi criado e percorrido parece ter contribuído para o desenvolvimento dos locais, para a consciencialização dos direitos de liberdade, de bem-estar, e entre outros do direito aos cuidados de saúde. Por esta visão que parece quase perfeita, pela necessidade de procurar boas práticas, e de continuar a acreditar, nasceu este trabalho que pretende: 1) dar voz a uma história que corre o risco de ficar esquecida, a experiência do Serviço Médico na Periferia que decorreu em Portugal entre 1975 e 1982; 2) recolher algumas histórias de vida parciais de alguns dos intervenientes desta experiência, enquanto têm memória desses dias; 3) apurar se se tratou de uma experiência de desenvolvimento local, e quais os resultados produzidos nos locais e nos seus actores; e 4) se destes podemos retirar ensinamentos para o futuro. The following study focuses on a specific period of Portuguese history that begins with the end of dictatorship in 1974. The year 1975, season in which intellectuals, politicians, soldiers, immigrants, and in general, the Portuguese, were inspired by the possibility of establishing freedoms together with the purpose of building a democracy. Portugal was a country full of hope and opportunities. This environment resulted in experiences that should be told and remembered, and one of these cases was the Medical Service in the Periphery, on which this work will focus. This service was the action of providing medical care outside the major cities, by those who finished the course in medicine. The service was created in 1975 and ended in 1982. This thesis will try to verify the social changes, cultural and economic results of that experiment. The path that was created and traveled seems to have contributed to the development of the local for the awareness of the rights of freedom, welfare and, among others, the right to have health care. The present work wants: 1) to give voice to a story that is in danger of being forgotten, the experience of medical service in the periphery that held in Portugal between 1975 and 1982, 2) collect a few life stories of some of the players part of this experience; 3) to confirm if it was an experience of local development and what the results produced in local and their players, and 4) if there’s any lessons that we can take for the future.
- Published
- 2009
79. Recém-nascidos de muito baixo peso e famílias migrantes : maternidade Dr. Alfredo da Costa : uma janela sobre a sociedade contemporânea portuguesa…
- Author
-
Santos, Gonçalo Cassiano, Ramos, Vítor, and Loureiro, Isabel
- Subjects
Muito baixo peso ao nascer ,Recém-nascidos ,Very-low birthweight ,Migrantes ,Migrants ,Newborns - Abstract
RESUMO - A migração transnacional de pessoas tem-se afirmado como um fenómeno global e crescente, provocando, nos diversos contextos nacionais implicados, mudança social e desafios adaptativos das sociedades e instituições. O universo da saúde poderá contudo constituir uma esfera privilegiada de interacção senão de inclusão e coesão social, requestionando os conceitos de cidadania. A sustentação de bons indicadores de saúde, nomeadamente materna e infantil, decorre de estratégias abrangentes de saúde pública e de políticas visionárias que contemplem sempre e também os mais necessitados. Procurando conhecer melhor os contextos em que ocorre o nascimento de recém-nascidos de muito baixo peso, este projecto corresponde a um estudo exploratório na maior maternidade do país, procurando entender a eventual associação de factores de índole social e familiar, nomeadamente ser de origem migrante. --------------------------- ABSTRACT - Transnational migration of people has clearly become a global and growing issue causing, on different national grounds, social change and adaptative challenges to society and its institutions. The health universe may, however, be a privileged scenery for integration and social cohesion making one re-think the concept of citizenship. Keeping up good health statistics, including maternal and child health results from wide public health strategies and fore seeking health policies not disregarding the underprivileged or the less visible fringes of society. Aiming to clarify on what context very low birth weight happens this project consists mainly in an explorative study on the biggest maternity in Portugal. Social and familiar factors are screened for possible association with migrant origin in ver
80. Health workforce policies in Portugal: ideas for modernization.
- Author
-
Ramos V
- Subjects
- Portugal, Health Workforce, Policy Making
- Published
- 2007
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