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Registro Completo |
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Biblioteca(s): |
Embrapa Hortaliças; Embrapa Rondônia; Embrapa Soja; Embrapa Uva e Vinho. |
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Data corrente: |
21/05/1996 |
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Data da última atualização: |
17/07/2009 |
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Autoria: |
SILVA, G. S. da. |
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Título: |
Variabilidade de Verticillium albo-atrum e sua patogenicidade a algumas ervas daninhas. |
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Ano de publicação: |
1978 |
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Fonte/Imprenta: |
1978. |
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Páginas: |
41f. |
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Idioma: |
Português |
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Notas: |
Dissertacao (Mestrado em Fitopatologia) - Escola Superior de Agricultura "Luiz de Queiroz", Universidade de São Paulo, Piracicaba. |
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Conteúdo: |
Estudou-se a variabilidade de Verticillium albo-atrum Reinke & Berthold e a reacao de ervas daninhas ao patogeno. Os ensaios de variabilidade foram realizados em casa de vegetacao, inoculando-se 21 isolados de Verticillium sobre tomateiros Santa Cruz cv. 'Kada'. A suscetibilidade de 38 ervas daninhas foi determinada inoculando-se um isolado obtido de quiabeiro (Hisbiscus esculentum L.). Durante o levantamento da distribuicao do patogeno, a Murcha de Verticillium foi encontrada em todas as regioes onde se cultiva o tomateiro. Nao se constatou especializacao a nivel de racas fisiologicas entre os 21 isolados de Verticillium estudados. Os isolados diferiram entre si quanto a agressividade. Diversas ervas daninhas mostraram-se suscetiveis ao patogeno. Especies damesma familia mostraram diferentes reacoes a Verticillium. Algumas invasoras, embora apresentassem forte descoloracao vascular, nao mostraram sintomas externos o que pode dificultar a sua identificacao como hospedeiras no campo. Sugere-se a eliminacao das ervas daninhas, durante os periodos de rotacao de culturas, como possivel medida para controle da Murcha de Verticillium. |
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Palavras-Chave: |
Brasil; Control; Controle; Controle de planta daninha; Disease; Doenca do tomateiro; Fungus; Hibiscus esculentum; Inóculo; Lycopersicum esculentum; Murcha; Planta daninha; São Paulo; Tomate-Doenças; Tomato; Tomato plant disease; Variabilidade; Weed. |
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Thesagro: |
Doença; Doença de Planta; Erva Daninha; Fungo; Patogenicidade; Tomate. |
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Thesaurus Nal: |
Brazil; fungi; pathogenicity; Solanum lycopersicum; Verticillium albo-atrum; weed control. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 02485nam a2200493 a 4500
001 1459295
005 2009-07-17
008 1978 bl uuuu m 00u1 u #d
100 1 $aSILVA, G. S. da
245 $aVariabilidade de Verticillium albo-atrum e sua patogenicidade a algumas ervas daninhas.
260 $a1978.$c1978
300 $a41f.
500 $aDissertacao (Mestrado em Fitopatologia) - Escola Superior de Agricultura "Luiz de Queiroz", Universidade de São Paulo, Piracicaba.
520 $aEstudou-se a variabilidade de Verticillium albo-atrum Reinke & Berthold e a reacao de ervas daninhas ao patogeno. Os ensaios de variabilidade foram realizados em casa de vegetacao, inoculando-se 21 isolados de Verticillium sobre tomateiros Santa Cruz cv. 'Kada'. A suscetibilidade de 38 ervas daninhas foi determinada inoculando-se um isolado obtido de quiabeiro (Hisbiscus esculentum L.). Durante o levantamento da distribuicao do patogeno, a Murcha de Verticillium foi encontrada em todas as regioes onde se cultiva o tomateiro. Nao se constatou especializacao a nivel de racas fisiologicas entre os 21 isolados de Verticillium estudados. Os isolados diferiram entre si quanto a agressividade. Diversas ervas daninhas mostraram-se suscetiveis ao patogeno. Especies damesma familia mostraram diferentes reacoes a Verticillium. Algumas invasoras, embora apresentassem forte descoloracao vascular, nao mostraram sintomas externos o que pode dificultar a sua identificacao como hospedeiras no campo. Sugere-se a eliminacao das ervas daninhas, durante os periodos de rotacao de culturas, como possivel medida para controle da Murcha de Verticillium.
650 $aBrazil
650 $afungi
650 $apathogenicity
650 $aSolanum lycopersicum
650 $aVerticillium albo-atrum
650 $aweed control
650 $aDoença
650 $aDoença de Planta
650 $aErva Daninha
650 $aFungo
650 $aPatogenicidade
650 $aTomate
653 $aBrasil
653 $aControl
653 $aControle
653 $aControle de planta daninha
653 $aDisease
653 $aDoenca do tomateiro
653 $aFungus
653 $aHibiscus esculentum
653 $aInóculo
653 $aLycopersicum esculentum
653 $aMurcha
653 $aPlanta daninha
653 $aSão Paulo
653 $aTomate-Doenças
653 $aTomato
653 $aTomato plant disease
653 $aVariabilidade
653 $aWeed
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Registro original: |
Embrapa Soja (CNPSO) |
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 | Acesso ao texto completo restrito à biblioteca da Embrapa Agrobiologia. Para informações adicionais entre em contato com cnpab.biblioteca@embrapa.br. |
Registro Completo
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Biblioteca(s): |
Embrapa Agrobiologia. |
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Data corrente: |
30/06/2021 |
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Data da última atualização: |
30/06/2021 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
B - 1 |
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Autoria: |
SANTOS, C. M. dos; RIBEIRO, N. V. S.; SCHWAB, S.; BALDANI, J. I.; VIDAL, M. S. |
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Afiliação: |
CARLOS M. DOS SANTOS, Bolsista da Embrapa Agrobiologia; NÁTHALIA V. S. RIBEIRO, Bolsista da Embrapa Agrobiologia; STEFAN SCHWAB, CNPAB; JOSE IVO BALDANI, CNPAB; MARCIA SOARES VIDAL, CNPAB. |
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Título: |
The effect of inoculation of a diazotrophic bacterial xonsortium on the indigenous bacterial community structure of sugarcane apoplast fluid. |
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Ano de publicação: |
2021 |
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Fonte/Imprenta: |
Current Microbiologym, Published online, 25 june 2021. |
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ISSN: |
1432-0991 |
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DOI: |
https://doi.org/10.1007/s00284-021-02571-0 |
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Idioma: |
Inglês |
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Conteúdo: |
The extracellular space in plants, termed the apoplast, has a pH and sugar content that enables bacterial growth and represents a possible niche for the establishment of endophytic bacteria. Previous studies have investigated the effects of diazotrophic bacteria inoculation in sugarcane varieties, but it has not yet been analyzed how the microbial community of apoplast fluid of sugarcane is affected. High-throughput next generation sequencing of the 16S rRNA gene was used throughout this study to determine the effect of inoculation with a diazotrophic bacteria consortium, previously isolated from sugarcane, on the native bacterial population of sugarcane variety RB867515 grown in the field. The analyses were carried out 450 days after inoculation. The results revealed the presence of 22 phyla, with predominance of Proteobacteria phylum. It was observed that the inoculated consortium changed the indigenous bacterial community structure of sugarcane apoplast fluid by decreasing diversity and evenness, interfering in the composition of rare species. Microbial community composition analysis revealed differences between treatments. The differential abundance test showed there were 43 amplicon sequence variants (ASVs) which were relatively more abundant in the inoculated treatment, with predominance of the Sphingomonas genus. The pre-dicted functions of the most abundant ASVs revealed the presence of genera related to plant growth promotion and protection against phytopathogens. Analysis to evaluate the occurrence of inoculated strains in the recovered data was not conclusive since the ASVs taxonomically close to the inoculated bacteria were observed in low abundance. The present study is the first report to elucidate the bacterial community in sugarcane apoplast fluid using a culture-independent approach. It demonstrated that the diazotrophic bacterial consortium interferes in the natural bacterial community in sugarcane variety RB867515 MenosThe extracellular space in plants, termed the apoplast, has a pH and sugar content that enables bacterial growth and represents a possible niche for the establishment of endophytic bacteria. Previous studies have investigated the effects of diazotrophic bacteria inoculation in sugarcane varieties, but it has not yet been analyzed how the microbial community of apoplast fluid of sugarcane is affected. High-throughput next generation sequencing of the 16S rRNA gene was used throughout this study to determine the effect of inoculation with a diazotrophic bacteria consortium, previously isolated from sugarcane, on the native bacterial population of sugarcane variety RB867515 grown in the field. The analyses were carried out 450 days after inoculation. The results revealed the presence of 22 phyla, with predominance of Proteobacteria phylum. It was observed that the inoculated consortium changed the indigenous bacterial community structure of sugarcane apoplast fluid by decreasing diversity and evenness, interfering in the composition of rare species. Microbial community composition analysis revealed differences between treatments. The differential abundance test showed there were 43 amplicon sequence variants (ASVs) which were relatively more abundant in the inoculated treatment, with predominance of the Sphingomonas genus. The pre-dicted functions of the most abundant ASVs revealed the presence of genera related to plant growth promotion and protection against phytopathogens. A... Mostrar Tudo |
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Palavras-Chave: |
Endophytic bacteria; Plant growth promotion bacteria. |
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Categoria do assunto: |
S Ciências Biológicas |
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Marc: |
LEADER 02707naa a2200217 a 4500
001 2132685
005 2021-06-30
008 2021 bl uuuu u00u1 u #d
022 $a1432-0991
024 7 $ahttps://doi.org/10.1007/s00284-021-02571-0$2DOI
100 1 $aSANTOS, C. M. dos
245 $aThe effect of inoculation of a diazotrophic bacterial xonsortium on the indigenous bacterial community structure of sugarcane apoplast fluid.$h[electronic resource]
260 $c2021
520 $aThe extracellular space in plants, termed the apoplast, has a pH and sugar content that enables bacterial growth and represents a possible niche for the establishment of endophytic bacteria. Previous studies have investigated the effects of diazotrophic bacteria inoculation in sugarcane varieties, but it has not yet been analyzed how the microbial community of apoplast fluid of sugarcane is affected. High-throughput next generation sequencing of the 16S rRNA gene was used throughout this study to determine the effect of inoculation with a diazotrophic bacteria consortium, previously isolated from sugarcane, on the native bacterial population of sugarcane variety RB867515 grown in the field. The analyses were carried out 450 days after inoculation. The results revealed the presence of 22 phyla, with predominance of Proteobacteria phylum. It was observed that the inoculated consortium changed the indigenous bacterial community structure of sugarcane apoplast fluid by decreasing diversity and evenness, interfering in the composition of rare species. Microbial community composition analysis revealed differences between treatments. The differential abundance test showed there were 43 amplicon sequence variants (ASVs) which were relatively more abundant in the inoculated treatment, with predominance of the Sphingomonas genus. The pre-dicted functions of the most abundant ASVs revealed the presence of genera related to plant growth promotion and protection against phytopathogens. Analysis to evaluate the occurrence of inoculated strains in the recovered data was not conclusive since the ASVs taxonomically close to the inoculated bacteria were observed in low abundance. The present study is the first report to elucidate the bacterial community in sugarcane apoplast fluid using a culture-independent approach. It demonstrated that the diazotrophic bacterial consortium interferes in the natural bacterial community in sugarcane variety RB867515
653 $aEndophytic bacteria
653 $aPlant growth promotion bacteria
700 1 $aRIBEIRO, N. V. S.
700 1 $aSCHWAB, S.
700 1 $aBALDANI, J. I.
700 1 $aVIDAL, M. S.
773 $tCurrent Microbiologym, Published online, 25 june 2021.
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Embrapa Agrobiologia (CNPAB) |
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