Antifungal activity of Trichoderma VOCs against Pyrenophora teres, the causal agent of barley net blotch

Many species of Trichoderma produce secondary metabolites such as volatile organic compounds (VOCs) that reduce plant diseases and promote their growth. In this work we evaluated the antagonistic effects of VOCs released by eight strains of two Trichoderma species against Pyrenophora teres Drechsler...

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Detalles Bibliográficos
Autores principales:	Moya, Paulina, Girotti, Juan Roberto, Toledo, Andrea Vanesa, Sisterna, Marina Noemí
Formato:	Articulo
Lenguaje:	Español
Publicado:	2018
Materias:	Biología Ciencias Agrarias Cromatografía de Gases y Espectrometría de Masas VOCs biocontrol biopesticides fungi gas chromatography mass spectrometry pathogens Pyrenophora teres Trichoderma
Acceso en línea:	http://sedici.unlp.edu.ar/handle/10915/74864
Aporte de:	SEDICI (UNLP) de Universidad Nacional de La Plata

id	I19-R120-10915-74864
record_format	dspace
institution	Universidad Nacional de La Plata
institution_str	I-19
repository_str	R-120
collection	SEDICI (UNLP)
language	Español
topic	Biología Ciencias Agrarias Cromatografía de Gases y Espectrometría de Masas VOCs biocontrol biopesticides fungi gas chromatography mass spectrometry pathogens Pyrenophora teres Trichoderma
spellingShingle	Biología Ciencias Agrarias Cromatografía de Gases y Espectrometría de Masas VOCs biocontrol biopesticides fungi gas chromatography mass spectrometry pathogens Pyrenophora teres Trichoderma Moya, Paulina Girotti, Juan Roberto Toledo, Andrea Vanesa Sisterna, Marina Noemí Antifungal activity of Trichoderma VOCs against Pyrenophora teres, the causal agent of barley net blotch
topic_facet	Biología Ciencias Agrarias Cromatografía de Gases y Espectrometría de Masas VOCs biocontrol biopesticides fungi gas chromatography mass spectrometry pathogens Pyrenophora teres Trichoderma
description	Many species of Trichoderma produce secondary metabolites such as volatile organic compounds (VOCs) that reduce plant diseases and promote their growth. In this work we evaluated the antagonistic effects of VOCs released by eight strains of two Trichoderma species against Pyrenophora teres Drechsler, the causal agent of barley net blotch. Antagonism was estimated based on the percentage of mycelial growth inhibition according to the confronted cultures method. VOCs extraction and identification were performed by gas chromatography and mass spectrometry, through different methodologies for VOCs emitted by antagonists and pathogens alone or when confronted. VOCs produced by all Trichoderma strains inhibited mycelial growth of the pathogen in a range of 3 to 32%, showing weak and unpigmented mycelia with vacuolization. In addition, P. teres stimulated the release of VOCs by both Trichoderma species. The major groups of VOCs detected were sesquiterpenes, followed by diterpenes, terpenoids and eight-carbon compounds. This is the first report about characterization of volatiles emitted by Trichoderma in the presence of P. teres.
format	Articulo Articulo
author	Moya, Paulina Girotti, Juan Roberto Toledo, Andrea Vanesa Sisterna, Marina Noemí
author_facet	Moya, Paulina Girotti, Juan Roberto Toledo, Andrea Vanesa Sisterna, Marina Noemí
author_sort	Moya, Paulina
title	Antifungal activity of Trichoderma VOCs against Pyrenophora teres, the causal agent of barley net blotch
title_short	Antifungal activity of Trichoderma VOCs against Pyrenophora teres, the causal agent of barley net blotch
title_full	Antifungal activity of Trichoderma VOCs against Pyrenophora teres, the causal agent of barley net blotch
title_fullStr	Antifungal activity of Trichoderma VOCs against Pyrenophora teres, the causal agent of barley net blotch
title_full_unstemmed	Antifungal activity of Trichoderma VOCs against Pyrenophora teres, the causal agent of barley net blotch
title_sort	antifungal activity of trichoderma vocs against pyrenophora teres, the causal agent of barley net blotch
publishDate	2018
url	http://sedici.unlp.edu.ar/handle/10915/74864
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bdutipo_str	Repositorios
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Antifungal activity of Trichoderma VOCs against Pyrenophora teres, the causal agent of barley net blotch

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