Uredospore germination of Hemileia vastatrix and its inhibition by the effect of plant extracts in vitro

Abstract Coffee leaf rust, caused by Hemileia vastatrix, is the most important disease of coffee (Coffea arabica L.) in Mexico. It causes production losses of up to 40% and leads to the use of considerable volumes of synthetic fungicides. The main goals of this research were to identify the temperat...

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Autores principales:	Morales-Antonio,Miguel A., Santiago-Martínez,Gisela M., Vásquez-López,Alfonso, Rodríguez-Ortiz,Gerardo, Soto-Castro,Delia, Lozano-Trejo,Salvador, Castañeda-Hidalgo,Ernesto
Lenguaje:	English
Publicado:	Pontificia Universidad Católica de Chile.Facultad de Agronomía e Ingeniería Forestal 2021
Materias:	Coffea arabica coffee leaf rust organic fungicides secondary metabolites
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S2452-57312021000200108
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spelling	oai:scielo:S2452-573120210002001082021-09-27Uredospore germination of Hemileia vastatrix and its inhibition by the effect of plant extracts in vitroMorales-Antonio,Miguel A.Santiago-Martínez,Gisela M.Vásquez-López,AlfonsoRodríguez-Ortiz,GerardoSoto-Castro,DeliaLozano-Trejo,SalvadorCastañeda-Hidalgo,Ernesto Coffea arabica coffee leaf rust organic fungicides secondary metabolites Abstract Coffee leaf rust, caused by Hemileia vastatrix, is the most important disease of coffee (Coffea arabica L.) in Mexico. It causes production losses of up to 40% and leads to the use of considerable volumes of synthetic fungicides. The main goals of this research were to identify the temperature, pH, incubation time, and luminosity required for in vitro germination of H. vastatrix uredospores and to evaluate the effect of plant extracts on their germination. Uredospores from coffee plants (var. Caturra) grown in the state of Oaxaca, Mexico, were collected and subjected to treatments consisting of combined levels of T°, pH, and incubation time. The treatments were evaluated in darkness and under low-intensity white light (15 W). Uredospore germination occurred in the absence and presence of light. The highest percentage of uredospore germination was 44.95%, which occurred at pH 5.7, between 18 and 24 °C, and with an incubation time of 24 h. The effect of 30 plant extracts was evaluated in terms of inhibition of uredospore germination. The acetone and ethanol extracts of Tribulus terrestris, Datura ferox, Mansoa alliacea, Ricinus communis, and Acacia farnesiana inhibited 100% of uredospore germination. Thus, plant extracts may contribute to the integrated disease management of coffee leaf rust.info:eu-repo/semantics/openAccessPontificia Universidad Católica de Chile.Facultad de Agronomía e Ingeniería ForestalInternational journal of agriculture and natural resources v.48 n.2 20212021-08-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S2452-57312021000200108en10.7764/ijanr.v48i2.2272
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	Coffea arabica coffee leaf rust organic fungicides secondary metabolites
spellingShingle	Coffea arabica coffee leaf rust organic fungicides secondary metabolites Morales-Antonio,Miguel A. Santiago-Martínez,Gisela M. Vásquez-López,Alfonso Rodríguez-Ortiz,Gerardo Soto-Castro,Delia Lozano-Trejo,Salvador Castañeda-Hidalgo,Ernesto Uredospore germination of Hemileia vastatrix and its inhibition by the effect of plant extracts in vitro
description	Abstract Coffee leaf rust, caused by Hemileia vastatrix, is the most important disease of coffee (Coffea arabica L.) in Mexico. It causes production losses of up to 40% and leads to the use of considerable volumes of synthetic fungicides. The main goals of this research were to identify the temperature, pH, incubation time, and luminosity required for in vitro germination of H. vastatrix uredospores and to evaluate the effect of plant extracts on their germination. Uredospores from coffee plants (var. Caturra) grown in the state of Oaxaca, Mexico, were collected and subjected to treatments consisting of combined levels of T°, pH, and incubation time. The treatments were evaluated in darkness and under low-intensity white light (15 W). Uredospore germination occurred in the absence and presence of light. The highest percentage of uredospore germination was 44.95%, which occurred at pH 5.7, between 18 and 24 °C, and with an incubation time of 24 h. The effect of 30 plant extracts was evaluated in terms of inhibition of uredospore germination. The acetone and ethanol extracts of Tribulus terrestris, Datura ferox, Mansoa alliacea, Ricinus communis, and Acacia farnesiana inhibited 100% of uredospore germination. Thus, plant extracts may contribute to the integrated disease management of coffee leaf rust.
author	Morales-Antonio,Miguel A. Santiago-Martínez,Gisela M. Vásquez-López,Alfonso Rodríguez-Ortiz,Gerardo Soto-Castro,Delia Lozano-Trejo,Salvador Castañeda-Hidalgo,Ernesto
author_facet	Morales-Antonio,Miguel A. Santiago-Martínez,Gisela M. Vásquez-López,Alfonso Rodríguez-Ortiz,Gerardo Soto-Castro,Delia Lozano-Trejo,Salvador Castañeda-Hidalgo,Ernesto
author_sort	Morales-Antonio,Miguel A.
title	Uredospore germination of Hemileia vastatrix and its inhibition by the effect of plant extracts in vitro
title_short	Uredospore germination of Hemileia vastatrix and its inhibition by the effect of plant extracts in vitro
title_full	Uredospore germination of Hemileia vastatrix and its inhibition by the effect of plant extracts in vitro
title_fullStr	Uredospore germination of Hemileia vastatrix and its inhibition by the effect of plant extracts in vitro
title_full_unstemmed	Uredospore germination of Hemileia vastatrix and its inhibition by the effect of plant extracts in vitro
title_sort	uredospore germination of hemileia vastatrix and its inhibition by the effect of plant extracts in vitro
publisher	Pontificia Universidad Católica de Chile.Facultad de Agronomía e Ingeniería Forestal
publishDate	2021
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S2452-57312021000200108
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Uredospore germination of Hemileia vastatrix and its inhibition by the effect of plant extracts in vitro

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