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Biblioteca(s): |
Embrapa Arroz e Feijão. |
Data corrente: |
04/08/2015 |
Data da última atualização: |
24/09/2015 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Autoria: |
SOUZA, A. C. A de; CORTES, M. V. de B.; SILVA, G. B. da; SOUSA, T. P. de; RODRIGUES, F. A.; FILIPPI, M. C. C. |
Afiliação: |
ALAN CARLOS A. DE SOUZA, UFLA; MARCIO VINICIUS DE C BARROS CORTES, CNPAF; GISELE BARATA DA SILVA, UFRA; THATYANE PEREIRA DE SOUZA, UFG; FABRICIO A. RODRIGUES, UFV; MARTA CRISTINA CORSI DE FILIPPI, CNPAF. |
Título: |
Enzyme-induced defense response in the suppression of rice leaf blast (Magnaporthe Oryzae) by silicon fertilization and bioagents. |
Ano de publicação: |
2015 |
Fonte/Imprenta: |
International Journal of Research Studies in Biosciences, v. 3, n. 5, p. 22-32, May 2015. |
Idioma: |
Inglês |
Conteúdo: |
The effects of silicon fertilization and bioagents in suppressing leaf blast were studied in two greenhouse experiments using a susceptible upland rice cultivar, BRS Primavera. In the first experiment, the treatments consisted of four doses of SiCaMg (1,2,4 and 8 tons Si.ha-1) and four bioagent (Burkholderia pyrrocinia (Bp); Pseudomonas fluorescens (Pf); Trichoderma asperellum (Ta) and a mixture of the three bioagents (Bp+Pf+Ta), in addition to untreated controls. The most effective treatment was silicon fertilization at 2tons in combination with the three bioagents, which reduced leaf blast by 96%. A second experiment was conducted to study the defense mechanism involved in disease suppression. The treatments were organized in a randomized block design, with or without Si (0 or 2 tons Si) and bioagents (non-inoculated control, Ta or Bp+Pf+Ta). The combination of silicon fertilization (2 tons SiCaMg.ha-1) with T. asperellum or with a mixture of the three bioagents increased the activities of chitinase (CHI), β-1,3glucanase (GLU), peroxidase (POX) and phenylalanine ammonia-lyase (PAL) as well as the salicylic acid (SA) content in rice plants in the absence of the pathogen Magnaporthe oryzae. The mixture of the three bioagents in plants fertilized with 2 tons Si increased GLU enzyme activity and SA levels at 24 and 48 hours after infection of the plants challenged with M. oryzae. The activation of defense mechanism by combination of silicon fertilization with bioagent mixture could be an effective strategy for rice blast management. MenosThe effects of silicon fertilization and bioagents in suppressing leaf blast were studied in two greenhouse experiments using a susceptible upland rice cultivar, BRS Primavera. In the first experiment, the treatments consisted of four doses of SiCaMg (1,2,4 and 8 tons Si.ha-1) and four bioagent (Burkholderia pyrrocinia (Bp); Pseudomonas fluorescens (Pf); Trichoderma asperellum (Ta) and a mixture of the three bioagents (Bp+Pf+Ta), in addition to untreated controls. The most effective treatment was silicon fertilization at 2tons in combination with the three bioagents, which reduced leaf blast by 96%. A second experiment was conducted to study the defense mechanism involved in disease suppression. The treatments were organized in a randomized block design, with or without Si (0 or 2 tons Si) and bioagents (non-inoculated control, Ta or Bp+Pf+Ta). The combination of silicon fertilization (2 tons SiCaMg.ha-1) with T. asperellum or with a mixture of the three bioagents increased the activities of chitinase (CHI), β-1,3glucanase (GLU), peroxidase (POX) and phenylalanine ammonia-lyase (PAL) as well as the salicylic acid (SA) content in rice plants in the absence of the pathogen Magnaporthe oryzae. The mixture of the three bioagents in plants fertilized with 2 tons Si increased GLU enzyme activity and SA levels at 24 and 48 hours after infection of the plants challenged with M. oryzae. The activation of defense mechanism by combination of silicon fertilization with bioagent mix... Mostrar Tudo |
Palavras-Chave: |
Bioagente. |
Thesagro: |
Arroz; Brusone; Doença de planta; Oryza sativa; Silício. |
Thesaurus Nal: |
Magnaporthe oryzae. |
Categoria do assunto: |
H Saúde e Patologia |
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/127449/1/CNPAF2015.pdf
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Marc: |
LEADER 02393naa a2200265 a 4500 001 2021319 005 2015-09-24 008 2015 bl uuuu u00u1 u #d 100 1 $aSOUZA, A. C. A de 245 $aEnzyme-induced defense response in the suppression of rice leaf blast (Magnaporthe Oryzae) by silicon fertilization and bioagents.$h[electronic resource] 260 $c2015 520 $aThe effects of silicon fertilization and bioagents in suppressing leaf blast were studied in two greenhouse experiments using a susceptible upland rice cultivar, BRS Primavera. In the first experiment, the treatments consisted of four doses of SiCaMg (1,2,4 and 8 tons Si.ha-1) and four bioagent (Burkholderia pyrrocinia (Bp); Pseudomonas fluorescens (Pf); Trichoderma asperellum (Ta) and a mixture of the three bioagents (Bp+Pf+Ta), in addition to untreated controls. The most effective treatment was silicon fertilization at 2tons in combination with the three bioagents, which reduced leaf blast by 96%. A second experiment was conducted to study the defense mechanism involved in disease suppression. The treatments were organized in a randomized block design, with or without Si (0 or 2 tons Si) and bioagents (non-inoculated control, Ta or Bp+Pf+Ta). The combination of silicon fertilization (2 tons SiCaMg.ha-1) with T. asperellum or with a mixture of the three bioagents increased the activities of chitinase (CHI), β-1,3glucanase (GLU), peroxidase (POX) and phenylalanine ammonia-lyase (PAL) as well as the salicylic acid (SA) content in rice plants in the absence of the pathogen Magnaporthe oryzae. The mixture of the three bioagents in plants fertilized with 2 tons Si increased GLU enzyme activity and SA levels at 24 and 48 hours after infection of the plants challenged with M. oryzae. The activation of defense mechanism by combination of silicon fertilization with bioagent mixture could be an effective strategy for rice blast management. 650 $aMagnaporthe oryzae 650 $aArroz 650 $aBrusone 650 $aDoença de planta 650 $aOryza sativa 650 $aSilício 653 $aBioagente 700 1 $aCORTES, M. V. de B. 700 1 $aSILVA, G. B. da 700 1 $aSOUSA, T. P. de 700 1 $aRODRIGUES, F. A. 700 1 $aFILIPPI, M. C. C. 773 $tInternational Journal of Research Studies in Biosciences$gv. 3, n. 5, p. 22-32, May 2015.
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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 Recursos Genéticos e Biotecnologia. Para informações adicionais entre em contato com cenargen.biblioteca@embrapa.br. |
Registro Completo
Biblioteca(s): |
Embrapa Recursos Genéticos e Biotecnologia. |
Data corrente: |
06/01/2010 |
Data da última atualização: |
07/05/2024 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Circulação/Nível: |
B - 2 |
Autoria: |
CRUZ, A. R. R.; SOARES, E. L.; CAMPOS, F. A. P.; ARAGÃO, F. J. L. |
Afiliação: |
ANDRÉA RAQUEL RAMOS DA CRUZ; EMANOELLA L. SOARES, UNIVERSIDADE FEDERAL DO CEARÁ; FRANCISCO A. P. CAMPOS, UNIVERSIDADE FEDERAL DO CEARÁ; FRANCISCO JOSE LIMA ARAGÃO, EMBRAPA RECURSOS GENÉTICOS E BIOTECNOLOGIA. |
Título: |
Biolistic-mediated genetic transformation of Prickly-pear cactus pear (Opuntia ficus-indica). |
Ano de publicação: |
2009 |
Fonte/Imprenta: |
Acta Horticulturae, v. 811, p. 255-257, 2009. |
Idioma: |
Inglês |
Notas: |
Edição do Proceedings of the six International Congress on Cactus Pear and Cochineal, [s.l.], 2009. |
Palavras-Chave: |
Biolistic; Cactus; transformação genética. |
Thesaurus NAL: |
gene expression; Opuntia. |
Categoria do assunto: |
-- |
Marc: |
LEADER 00731naa a2200217 a 4500 001 1579768 005 2024-05-07 008 2009 bl uuuu u00u1 u #d 100 1 $aCRUZ, A. R. R. 245 $aBiolistic-mediated genetic transformation of Prickly-pear cactus pear (Opuntia ficus-indica).$h[electronic resource] 260 $c2009 500 $aEdição do Proceedings of the six International Congress on Cactus Pear and Cochineal, [s.l.], 2009. 650 $agene expression 650 $aOpuntia 653 $aBiolistic 653 $aCactus 653 $atransformação genética 700 1 $aSOARES, E. L. 700 1 $aCAMPOS, F. A. P. 700 1 $aARAGÃO, F. J. L. 773 $tActa Horticulturae$gv. 811, p. 255-257, 2009.
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