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Registros recuperados: 66 | |
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CARVALHO, J. C. B. D.; CHAIBUB, A. A.; SOUSA, K. C. I.; CANDINE, D.; SILVA, C. D. S.; OLIVEIRA, R. D. S.; CORTES, M. V. B.; FILIPPI, M. C. C.; KATO, L.; ARAUJO, L. G.. |
O objetivo do trabalho foi isolar e identificar os metabólitos da micorriza Rhizoctonia sp. obtida de Epidendrum nocturnum, e avaliar o antagonismo in vitro e in vivo contra Magnaporthe oryzae. |
Tipo: Parte de livro |
Palavras-chave: Arroz; Oryza sativa; Doença de planta; Brusone; Fungo; Magnaporthe oryzae.. |
Ano: 2013 |
URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/993215 |
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CARVALHO, J. C. B.; OLIVEIRA, R. S.; NOVAIS, C.; CHAIBUB, A. A.; CANDINE, D.; SILVA, P. M.; SILVA, L. L. P.; FILIPPI, M. C. C.; KATO, L.; ARAUJO, L. G.. |
O presente estudo visou o levantamento do perfil químico dos extratos de Epicoccum sp. e sua capacidade de inibir a germinação de conídios e a formação de apressórios de M. oryzae. |
Tipo: Parte de livro |
Palavras-chave: Biocontrole.; Extrato; Epicoccum; Magnaporthe oryzae.. |
Ano: 2013 |
URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/993193 |
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REIS, K. B.; CORTÊS, M. V. de C. B.; MARTINS, F. S.; FILIPPI, M. C. C. de; PAULA, J. R. de; CONCEIÇÃO, E. C. da. |
The objective of this work was to purify and standardize the extract of rue (Ruta graveolens) and evaluate its effect on Magnaporthe oryzae as an alternative to the integrated management of rice blast. The drug was characterized, the liquid extract was obtained, and the methodology for quantifying the standard markers furanocoumarins psoralen and bergapten was validated. Rue extract and the markers, solely or in combination, were assayed in vitro, as well as in greenhouse conditions, for their ability to suppress leaf blast, by the evaluation of mycelial growth, conidial germination, and appressorium formation. Rue extract inhibited M. oryzae mycelial growth (100%), conidial germination (LD50=0.237 mg), and the appressorium formation (LD50=0.121 mg);... |
Tipo: Artigo de periódico |
Palavras-chave: Bergapteno; Psoraleno; Controle.; Arroz; Arruda; Ruta graveolens; Brusone.; Magnaporthe oryzae.. |
Ano: 2015 |
URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1031992 |
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GUIMARÃES, R. A.; LOBO, V. L. da S.; CORTES, M. V. de C. B.; FILIPPI, M. C. C. de; PRABHU, A. S.. |
The integrated management of rice leaf blast (Magnaporthe oryzae) is carried out mainly with the adoption of chemical control. However, the search for alternative practices has grown in recent years. Thus, the variability of 28 Sarocladium oryzae isolates was evaluated for the cerulenin production, as well as its potential for reducing the severity of rice leaf blast, quantifying the activity of enzymes linked to the plant defense mechanisms. More than 55 % of the S. oryzae isolates were antagonistic to the pathogens M. oryzae, Cochliobolus miyabeanus, Thanatephorus cucumeris and Monographella albescens, and 60 % of the isolates produced cerulenin at detectable levels. Both BRM 6461 (296.0 μg mL-1) and BRM 6493 (undetectable cerulenin) inhibited... |
Tipo: Artigo de periódico |
Palavras-chave: Biocontrole; Cerulenina.; Arroz; Oryza sativa; Doença de planta; Brusone; Atividade Enzimática.; Magnaporthe oryzae.. |
Ano: 2017 |
URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1082492 |
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Registros recuperados: 66 | |
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