| Registro completo |
| Provedor de dados: |
PAB
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| País: |
Brazil
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| Título: |
Characterization of rue extract and its potential for controlling rice blast
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| Autores: |
Reis,Karinna Bannach
Côrtes,Marcio Vinicius de Carvalho Barros
Martins,Frederico Severino
Filippi,Marta Cristina Corsi de
Paula,José Realino de
Conceição,Edemilson Cardoso da
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| Data: |
2015-12-01
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| Ano: |
2015
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| Palavras-chave: |
Magnaporthe oryzae
Ruta graveolens
Bergapten
Psoralen
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| Resumo: |
Abstract: The objective of this work was to purify and standardize the rue (Ruta graveolens) extract 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 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); besides, the extract reduced leaf blast severity by 80.84%. Fluorescence microscopy showed that rue extract did not damage M. oryzae cell wall and plasma membrane, indicating another mode of action. Rue extract has a great potential for controlling rice leaf blast.
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| Tipo: |
Info:eu-repo/semantics/article
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| Idioma: |
Inglês
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| Identificador: |
http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2015001201121
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| Editor: |
Embrapa Secretaria de Pesquisa e Desenvolvimento
Pesquisa Agropecuária Brasileira
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| Relação: |
10.1590/S0100-204X2015001200001
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| Formato: |
text/html
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| Fonte: |
Pesquisa Agropecuária Brasileira v.50 n.12 2015
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| Direitos: |
info:eu-repo/semantics/openAccess
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