Data/hora: 10/06/2024 08:18:19

Provedor de dados: 	86	
País: 	Brazil	
Título: 	Characterization of rue extract and its potential for controlling rice blast	
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.	
Data: 	2015-12-01	
Ano: 	2015	
Palavras-chave: 	Magnaporthe oryzae; Ruta graveolens; Bergapten; Psoralen.	
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.	
Tipo: 	Info:eu-repo/semantics/article	
Idioma: 	Inglês	
Identificador: 	http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2015001201121	
Editor: 	Embrapa Secretaria de Pesquisa e Desenvolvimento

Pesquisa Agropecuária Brasileira	
Relação: 	10.1590/S0100-204X2015001200001	
Formato: 	text/html	
Fonte: 	Pesquisa Agropecuária Brasileira  v.50 n.12 2015	
Fonte: 	info:eu-repo/semantics/openAccess