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![](/consulta/web/img/deny.png) | Acesso ao texto completo restrito à biblioteca da Embrapa Arroz e Feijão. Para informações adicionais entre em contato com cnpaf.biblioteca@embrapa.br. |
Registro Completo |
Biblioteca(s): |
Embrapa Arroz e Feijão. |
Data corrente: |
27/10/2017 |
Data da última atualização: |
01/06/2020 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Autoria: |
SPERANDIO, E. M.; VALE, H. M. M. do; REIS, M. de S.; CORTES, M. V. de C. B.; LANNA, A. C.; FILIPPI, M. C. C. de. |
Afiliação: |
EUGENIO MIRANDA SPERANDIO, UNB; HELSON MARIO MARTINS DO VALE, UNB; MARCELLO DE SOUZA REIS, bolsista CNPAF; MARCIO VINICIUS DE C BARROS CORTES, CNPAF; ANNA CRISTINA LANNA, CNPAF; MARTA CRISTINA CORSI DE FILIPPI, CNPAF. |
Título: |
Evaluation of rhizobacteria in upland rice in Brazil: growth promotion and interaction of induced defense responses against leaf blast (Magnaporthe oryzae). |
Ano de publicação: |
2017 |
Fonte/Imprenta: |
Acta Physiologiae Plantarum, v. 39, n. 12, p. 1-11, Dec. 2017. |
ISSN: |
0137-5881 |
DOI: |
https://doi.org/10.1007/s11738-017-2547-x |
Idioma: |
Inglês |
Notas: |
Article:259. |
Conteúdo: |
Blast and the initial vigor of upland rice plants are the main challenges facing rice crops in Brazilian notillage systems. The aim of this study was to evaluate the growth promotion and interactions of defense responses against Magnaporthe oryzae in rice plants treated with rhizobacteria Bacillus sp. (BRM 32110) and Serratia sp. (BRM 32114). The seeds of the rice were microbiolized, and 14 days after the plants emerged, the soil was drenched with rhizobacterial suspensions. Growth promotion was evaluated by root and shoot biomass, root and shoot length, foliar area, and nitrate reductase (NR) activity. The defense response was evaluated by quantification of the rice blast severity (RBS), disease progress, pathogenesis-related protein (PRP) activity, and salicylic acid content (SA). The length and biomass of the roots and shoots and the foliar area of the plants treated with BRM 32114 isolate increased; however, the NR activity was 43% lower compared to the control. Both isolates reduced the severity and progress of the disease. Principal component analysis showed that RBS, b-1,3-glucanase (GLU), peroxidase (POX), and phenylalanine ammonia lyase (PAL) were the main sources of the first components of variance, whereas lipoxygenase (LOX) and SA were the main sources of the second components and were negatively correlated. Serratia sp. isolate BRM 32114 can be used as a growthpromoting agent and has potential for inducing resistance in rice plants. The results suggest that the interaction among the levels and timing of the PRP activity and the levels of SA play important roles in the defense responses against M. oryzae. MenosBlast and the initial vigor of upland rice plants are the main challenges facing rice crops in Brazilian notillage systems. The aim of this study was to evaluate the growth promotion and interactions of defense responses against Magnaporthe oryzae in rice plants treated with rhizobacteria Bacillus sp. (BRM 32110) and Serratia sp. (BRM 32114). The seeds of the rice were microbiolized, and 14 days after the plants emerged, the soil was drenched with rhizobacterial suspensions. Growth promotion was evaluated by root and shoot biomass, root and shoot length, foliar area, and nitrate reductase (NR) activity. The defense response was evaluated by quantification of the rice blast severity (RBS), disease progress, pathogenesis-related protein (PRP) activity, and salicylic acid content (SA). The length and biomass of the roots and shoots and the foliar area of the plants treated with BRM 32114 isolate increased; however, the NR activity was 43% lower compared to the control. Both isolates reduced the severity and progress of the disease. Principal component analysis showed that RBS, b-1,3-glucanase (GLU), peroxidase (POX), and phenylalanine ammonia lyase (PAL) were the main sources of the first components of variance, whereas lipoxygenase (LOX) and SA were the main sources of the second components and were negatively correlated. Serratia sp. isolate BRM 32114 can be used as a growthpromoting agent and has potential for inducing resistance in rice plants. The results suggest that the ... Mostrar Tudo |
Palavras-Chave: |
Gowth promotion. |
Thesagro: |
Arroz; Brusone; Doença de planta; Oryza sativa. |
Thesaurus Nal: |
Blast disease; Induced resistance; Magnaporthe oryzae; Pathogenesis-related proteins; Rhizosphere bacteria; Rice. |
Categoria do assunto: |
H Saúde e Patologia |
Marc: |
LEADER 02745naa a2200349 a 4500 001 2078320 005 2020-06-01 008 2017 bl uuuu u00u1 u #d 022 $a0137-5881 024 7 $ahttps://doi.org/10.1007/s11738-017-2547-x$2DOI 100 1 $aSPERANDIO, E. M. 245 $aEvaluation of rhizobacteria in upland rice in Brazil$bgrowth promotion and interaction of induced defense responses against leaf blast (Magnaporthe oryzae).$h[electronic resource] 260 $c2017 500 $aArticle:259. 520 $aBlast and the initial vigor of upland rice plants are the main challenges facing rice crops in Brazilian notillage systems. The aim of this study was to evaluate the growth promotion and interactions of defense responses against Magnaporthe oryzae in rice plants treated with rhizobacteria Bacillus sp. (BRM 32110) and Serratia sp. (BRM 32114). The seeds of the rice were microbiolized, and 14 days after the plants emerged, the soil was drenched with rhizobacterial suspensions. Growth promotion was evaluated by root and shoot biomass, root and shoot length, foliar area, and nitrate reductase (NR) activity. The defense response was evaluated by quantification of the rice blast severity (RBS), disease progress, pathogenesis-related protein (PRP) activity, and salicylic acid content (SA). The length and biomass of the roots and shoots and the foliar area of the plants treated with BRM 32114 isolate increased; however, the NR activity was 43% lower compared to the control. Both isolates reduced the severity and progress of the disease. Principal component analysis showed that RBS, b-1,3-glucanase (GLU), peroxidase (POX), and phenylalanine ammonia lyase (PAL) were the main sources of the first components of variance, whereas lipoxygenase (LOX) and SA were the main sources of the second components and were negatively correlated. Serratia sp. isolate BRM 32114 can be used as a growthpromoting agent and has potential for inducing resistance in rice plants. The results suggest that the interaction among the levels and timing of the PRP activity and the levels of SA play important roles in the defense responses against M. oryzae. 650 $aBlast disease 650 $aInduced resistance 650 $aMagnaporthe oryzae 650 $aPathogenesis-related proteins 650 $aRhizosphere bacteria 650 $aRice 650 $aArroz 650 $aBrusone 650 $aDoença de planta 650 $aOryza sativa 653 $aGowth promotion 700 1 $aVALE, H. M. M. do 700 1 $aREIS, M. de S. 700 1 $aCORTES, M. V. de C. B. 700 1 $aLANNA, A. C. 700 1 $aFILIPPI, M. C. C. de 773 $tActa Physiologiae Plantarum$gv. 39, n. 12, p. 1-11, Dec. 2017.
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Embrapa Arroz e Feijão (CNPAF) |
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![](/consulta/web/img/deny.png) | Acesso ao texto completo restrito à biblioteca da Embrapa Unidades Centrais. Para informações adicionais entre em contato com biblioteca@embrapa.br. |
Registro Completo
Biblioteca(s): |
Embrapa Unidades Centrais. |
Data corrente: |
05/02/2015 |
Data da última atualização: |
16/04/2018 |
Autoria: |
SOUZA, G. da S. e; ALVES, E. R. de A.; GOMES, E. G.; MAGALHÃES, E.; ROCHA, D. de P. |
Afiliação: |
GERALDO DA SILVA E SOUZA, SGE; ELISEU ROBERTO DE ANDRADE ALVES, DE-PR; ELIANE GONCALVES GOMES, SGE; EDUARDO MAGALHÃES; DANIELA DE PAULA ROCHA. |
Título: |
Um modelo de produção para a agricultura brasileira e a importância da pesquisa da Embrapa. |
Ano de publicação: |
2013 |
Fonte/Imprenta: |
In: ALVES, E. R. de A.; SOUZA, G. da S. e; GOMES, E. G. (Ed.). Contribuição da Embrapa para o desenvolvimento da agricultura no Brasil. Brasília, DF: Embrapa, 2013. 291 p. il. color. |
Páginas: |
p. 47-86 |
Idioma: |
Português |
Notas: |
Uma versão preliminar deste artigo foi publicada na Revista de Política Agrícola, n. 4, de 2012. |
Conteúdo: |
Construção de um modelo de produção para a agricultura brasileira, utilizando os dados do censo agropecuário. Uma característica inovadora desse modelo foi a inclusão de uma covariável, que representa o esforço de pesquisa de Embrapa e, entre outros fatores, a assistência técnica e as diferenças regionais. |
Palavras-Chave: |
Eficiência técnica; Fronteira estocástica. |
Thesagro: |
Função de Produção; Pobreza Rural; Produtividade. |
Categoria do assunto: |
-- |
Marc: |
LEADER 01269naa a2200253 a 4500 001 2007870 005 2018-04-16 008 2013 bl uuuu u00u1 u #d 100 1 $aSOUZA, G. da S. e 245 $aUm modelo de produção para a agricultura brasileira e a importância da pesquisa da Embrapa. 260 $c2013 300 $ap. 47-86 500 $aUma versão preliminar deste artigo foi publicada na Revista de Política Agrícola, n. 4, de 2012. 520 $aConstrução de um modelo de produção para a agricultura brasileira, utilizando os dados do censo agropecuário. Uma característica inovadora desse modelo foi a inclusão de uma covariável, que representa o esforço de pesquisa de Embrapa e, entre outros fatores, a assistência técnica e as diferenças regionais. 650 $aFunção de Produção 650 $aPobreza Rural 650 $aProdutividade 653 $aEficiência técnica 653 $aFronteira estocástica 700 1 $aALVES, E. R. de A. 700 1 $aGOMES, E. G. 700 1 $aMAGALHÃES, E. 700 1 $aROCHA, D. de P. 773 $tIn: ALVES, E. R. de A.; SOUZA, G. da S. e; GOMES, E. G. (Ed.). Contribuição da Embrapa para o desenvolvimento da agricultura no Brasil. Brasília, DF: Embrapa, 2013. 291 p. il. color.
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