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

Autores
Moya, Paulina; Girotti, Juan Roberto; Toledo, Andrea Vanesa; Sisterna, Marina Noemí
Año de publicación
2018
Idioma
español castellano
Tipo de recurso
artículo
Estado
versión publicada
Descripción
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.
Centro de Investigaciones de Fitopatología
Materia
Biología
Ciencias Agrarias
Cromatografía de Gases y Espectrometría de Masas
VOCs
biocontrol
biopesticides
fungi
gas chromatography
mass spectrometry
pathogens
Pyrenophora teres
Trichoderma
Nivel de accesibilidad
acceso abierto
Condiciones de uso
http://creativecommons.org/licenses/by-nc-nd/3.0/
Repositorio
SEDICI (UNLP)
Institución
Universidad Nacional de La Plata
OAI Identificador
oai:sedici.unlp.edu.ar:10915/74864
Acceder
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oai_identifier_str oai:sedici.unlp.edu.ar:10915/74864
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network_name_str SEDICI (UNLP)
spelling Antifungal activity of Trichoderma VOCs against Pyrenophora teres, the causal agent of barley net blotchMoya, PaulinaGirotti, Juan RobertoToledo, Andrea VanesaSisterna, Marina NoemíBiologíaCiencias AgrariasCromatografía de Gases y Espectrometría de MasasVOCsbiocontrolbiopesticidesfungigas chromatographymass spectrometrypathogensPyrenophora teresTrichodermaMany 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.Centro de Investigaciones de Fitopatología2018info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionArticulohttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfhttp://sedici.unlp.edu.ar/handle/10915/74864spainfo:eu-repo/semantics/altIdentifier/doi/10.24425/119115info:eu-repo/semantics/openAccesshttp://creativecommons.org/licenses/by-nc-nd/3.0/Creative Commons Attribution-NonCommercial-NoDerivs 3.0 Unported (CC BY-NC-ND 3.0)reponame:SEDICI (UNLP)instname:Universidad Nacional de La Platainstacron:UNLP2025-10-22T16:53:49Zoai:sedici.unlp.edu.ar:10915/74864Institucionalhttp://sedici.unlp.edu.ar/Universidad públicaNo correspondehttp://sedici.unlp.edu.ar/oai/snrdalira@sedici.unlp.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:13292025-10-22 16:53:49.337SEDICI (UNLP) - Universidad Nacional de La Platafalse
dc.title.none.fl_str_mv Antifungal activity of Trichoderma VOCs against Pyrenophora teres, the causal agent of barley net blotch
title Antifungal activity of Trichoderma VOCs against Pyrenophora teres, the causal agent of barley net blotch
spellingShingle Antifungal activity of Trichoderma VOCs against Pyrenophora teres, the causal agent of barley net blotch
Moya, Paulina
Biología
Ciencias Agrarias
Cromatografía de Gases y Espectrometría de Masas
VOCs
biocontrol
biopesticides
fungi
gas chromatography
mass spectrometry
pathogens
Pyrenophora teres
Trichoderma
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
dc.creator.none.fl_str_mv Moya, Paulina
Girotti, Juan Roberto
Toledo, Andrea Vanesa
Sisterna, Marina Noemí
author Moya, Paulina
author_facet Moya, Paulina
Girotti, Juan Roberto
Toledo, Andrea Vanesa
Sisterna, Marina Noemí
author_role author
author2 Girotti, Juan Roberto
Toledo, Andrea Vanesa
Sisterna, Marina Noemí
author2_role author
author
author
dc.subject.none.fl_str_mv Biología
Ciencias Agrarias
Cromatografía de Gases y Espectrometría de Masas
VOCs
biocontrol
biopesticides
fungi
gas chromatography
mass spectrometry
pathogens
Pyrenophora teres
Trichoderma
topic Biología
Ciencias Agrarias
Cromatografía de Gases y Espectrometría de Masas
VOCs
biocontrol
biopesticides
fungi
gas chromatography
mass spectrometry
pathogens
Pyrenophora teres
Trichoderma
dc.description.none.fl_txt_mv 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.
Centro de Investigaciones de Fitopatología
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.
publishDate 2018
dc.date.none.fl_str_mv 2018
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Articulo
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://sedici.unlp.edu.ar/handle/10915/74864
url http://sedici.unlp.edu.ar/handle/10915/74864
dc.language.none.fl_str_mv spa
language spa
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.24425/119115
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
http://creativecommons.org/licenses/by-nc-nd/3.0/
Creative Commons Attribution-NonCommercial-NoDerivs 3.0 Unported (CC BY-NC-ND 3.0)
eu_rights_str_mv openAccess
rights_invalid_str_mv http://creativecommons.org/licenses/by-nc-nd/3.0/
Creative Commons Attribution-NonCommercial-NoDerivs 3.0 Unported (CC BY-NC-ND 3.0)
dc.format.none.fl_str_mv application/pdf
dc.source.none.fl_str_mv reponame:SEDICI (UNLP)
instname:Universidad Nacional de La Plata
instacron:UNLP
reponame_str SEDICI (UNLP)
collection SEDICI (UNLP)
instname_str Universidad Nacional de La Plata
instacron_str UNLP
institution UNLP
repository.name.fl_str_mv SEDICI (UNLP) - Universidad Nacional de La Plata
repository.mail.fl_str_mv alira@sedici.unlp.edu.ar
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score 12.982451

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