Action of fosetyl‐al and metalaxyl against Phytophthora austrocedri

Autores
Silva, Patricia Valeria; Vélez, María Laura; Hernández Otaño, D.; Nuñez, C.; Greslebin, Alina Gabriela
Año de publicación
2016
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Fosetyl‐Al and metalaxyl, the most commonly used systemic fungicides against Phytophthora, were evaluated for their efficacy to control Phytophthora austrocedri, the pathogen that causes a serious disease at the Austrocedrus chilensis forests in Patagonia. The effect of the chemicals on pathogen development in vitro and in planta was analysed. Both chemicals were shown to protect plants from the pathogen. In vitro assays showed that asexual reproduction was sensitive to both chemicals. However, mycelial growth and sexual reproduction, which were clearly sensitive to metalaxyl, were sensitive only to high concentrations of fosetyl‐Al. Fosetyl‐Al and metalaxyl had almost the same efficacy when applied preventively by soil drench to seedlings. This difference between in vitro and in planta results can be attributed to the dual action of fosetyl‐Al, not only inhibiting the pathogen but also stimulating host defence. In adult trees, preventive and curative treatments were tested, but only the fosetyl‐Al preventive treatment was effective in the assayed conditions. Interestingly, seedlings pretreated with both fungicides were less susceptible to the effectors secreted by the pathogen. Our results indicate that fosetyl‐Al and metalaxyl provide some resistance to the plant besides the fungistatic direct action on the pathogen. Further studies to elucidate a possible resistance‐inducing activity of these chemicals and the mechanisms involved are underway.
Fil: Silva, Patricia Valeria. Centro de Investigación y Extensión Forestal Andino Patagónico; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Vélez, María Laura. Centro de Investigación y Extensión Forestal Andino Patagónico; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Hernández Otaño, D.. Administración de Parques Nacionales; Argentina
Fil: Nuñez, C.. Administración de Parques Nacionales; Argentina
Fil: Greslebin, Alina Gabriela. Universidad Nacional de la Patagonia; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Materia
Phytophthora Austrocedri
Fosetyl-Al
Metalaxyl
Austrocedrus Chilensis
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/43786
Acceder
id CONICETDig_f84841ee767803d83a997a4430d03302
oai_identifier_str oai:ri.conicet.gov.ar:11336/43786
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Action of fosetyl‐al and metalaxyl against Phytophthora austrocedriSilva, Patricia ValeriaVélez, María LauraHernández Otaño, D.Nuñez, C.Greslebin, Alina GabrielaPhytophthora AustrocedriFosetyl-AlMetalaxylAustrocedrus Chilensishttps://purl.org/becyt/ford/1.6https://purl.org/becyt/ford/1Fosetyl‐Al and metalaxyl, the most commonly used systemic fungicides against Phytophthora, were evaluated for their efficacy to control Phytophthora austrocedri, the pathogen that causes a serious disease at the Austrocedrus chilensis forests in Patagonia. The effect of the chemicals on pathogen development in vitro and in planta was analysed. Both chemicals were shown to protect plants from the pathogen. In vitro assays showed that asexual reproduction was sensitive to both chemicals. However, mycelial growth and sexual reproduction, which were clearly sensitive to metalaxyl, were sensitive only to high concentrations of fosetyl‐Al. Fosetyl‐Al and metalaxyl had almost the same efficacy when applied preventively by soil drench to seedlings. This difference between in vitro and in planta results can be attributed to the dual action of fosetyl‐Al, not only inhibiting the pathogen but also stimulating host defence. In adult trees, preventive and curative treatments were tested, but only the fosetyl‐Al preventive treatment was effective in the assayed conditions. Interestingly, seedlings pretreated with both fungicides were less susceptible to the effectors secreted by the pathogen. Our results indicate that fosetyl‐Al and metalaxyl provide some resistance to the plant besides the fungistatic direct action on the pathogen. Further studies to elucidate a possible resistance‐inducing activity of these chemicals and the mechanisms involved are underway.Fil: Silva, Patricia Valeria. Centro de Investigación y Extensión Forestal Andino Patagónico; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Vélez, María Laura. Centro de Investigación y Extensión Forestal Andino Patagónico; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Hernández Otaño, D.. Administración de Parques Nacionales; ArgentinaFil: Nuñez, C.. Administración de Parques Nacionales; ArgentinaFil: Greslebin, Alina Gabriela. Universidad Nacional de la Patagonia; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaWiley Blackwell Publishing, Inc2016-02info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/43786Silva, Patricia Valeria; Vélez, María Laura; Hernández Otaño, D.; Nuñez, C.; Greslebin, Alina Gabriela; Action of fosetyl‐al and metalaxyl against Phytophthora austrocedri; Wiley Blackwell Publishing, Inc; Forest Pathology; 46; 1; 2-2016; 54-661437-4781CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1111/efp.12216info:eu-repo/semantics/altIdentifier/url/https://onlinelibrary.wiley.com/doi/abs/10.1111/efp.12216info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T09:33:36Zoai:ri.conicet.gov.ar:11336/43786instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-09-29 09:33:36.715CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Action of fosetyl‐al and metalaxyl against Phytophthora austrocedri
title Action of fosetyl‐al and metalaxyl against Phytophthora austrocedri
spellingShingle Action of fosetyl‐al and metalaxyl against Phytophthora austrocedri
Silva, Patricia Valeria
Phytophthora Austrocedri
Fosetyl-Al
Metalaxyl
Austrocedrus Chilensis
title_short Action of fosetyl‐al and metalaxyl against Phytophthora austrocedri
title_full Action of fosetyl‐al and metalaxyl against Phytophthora austrocedri
title_fullStr Action of fosetyl‐al and metalaxyl against Phytophthora austrocedri
title_full_unstemmed Action of fosetyl‐al and metalaxyl against Phytophthora austrocedri
title_sort Action of fosetyl‐al and metalaxyl against Phytophthora austrocedri
dc.creator.none.fl_str_mv Silva, Patricia Valeria
Vélez, María Laura
Hernández Otaño, D.
Nuñez, C.
Greslebin, Alina Gabriela
author Silva, Patricia Valeria
author_facet Silva, Patricia Valeria
Vélez, María Laura
Hernández Otaño, D.
Nuñez, C.
Greslebin, Alina Gabriela
author_role author
author2 Vélez, María Laura
Hernández Otaño, D.
Nuñez, C.
Greslebin, Alina Gabriela
author2_role author
author
author
author
dc.subject.none.fl_str_mv Phytophthora Austrocedri
Fosetyl-Al
Metalaxyl
Austrocedrus Chilensis
topic Phytophthora Austrocedri
Fosetyl-Al
Metalaxyl
Austrocedrus Chilensis
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.6
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv Fosetyl‐Al and metalaxyl, the most commonly used systemic fungicides against Phytophthora, were evaluated for their efficacy to control Phytophthora austrocedri, the pathogen that causes a serious disease at the Austrocedrus chilensis forests in Patagonia. The effect of the chemicals on pathogen development in vitro and in planta was analysed. Both chemicals were shown to protect plants from the pathogen. In vitro assays showed that asexual reproduction was sensitive to both chemicals. However, mycelial growth and sexual reproduction, which were clearly sensitive to metalaxyl, were sensitive only to high concentrations of fosetyl‐Al. Fosetyl‐Al and metalaxyl had almost the same efficacy when applied preventively by soil drench to seedlings. This difference between in vitro and in planta results can be attributed to the dual action of fosetyl‐Al, not only inhibiting the pathogen but also stimulating host defence. In adult trees, preventive and curative treatments were tested, but only the fosetyl‐Al preventive treatment was effective in the assayed conditions. Interestingly, seedlings pretreated with both fungicides were less susceptible to the effectors secreted by the pathogen. Our results indicate that fosetyl‐Al and metalaxyl provide some resistance to the plant besides the fungistatic direct action on the pathogen. Further studies to elucidate a possible resistance‐inducing activity of these chemicals and the mechanisms involved are underway.
Fil: Silva, Patricia Valeria. Centro de Investigación y Extensión Forestal Andino Patagónico; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Vélez, María Laura. Centro de Investigación y Extensión Forestal Andino Patagónico; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Hernández Otaño, D.. Administración de Parques Nacionales; Argentina
Fil: Nuñez, C.. Administración de Parques Nacionales; Argentina
Fil: Greslebin, Alina Gabriela. Universidad Nacional de la Patagonia; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
description Fosetyl‐Al and metalaxyl, the most commonly used systemic fungicides against Phytophthora, were evaluated for their efficacy to control Phytophthora austrocedri, the pathogen that causes a serious disease at the Austrocedrus chilensis forests in Patagonia. The effect of the chemicals on pathogen development in vitro and in planta was analysed. Both chemicals were shown to protect plants from the pathogen. In vitro assays showed that asexual reproduction was sensitive to both chemicals. However, mycelial growth and sexual reproduction, which were clearly sensitive to metalaxyl, were sensitive only to high concentrations of fosetyl‐Al. Fosetyl‐Al and metalaxyl had almost the same efficacy when applied preventively by soil drench to seedlings. This difference between in vitro and in planta results can be attributed to the dual action of fosetyl‐Al, not only inhibiting the pathogen but also stimulating host defence. In adult trees, preventive and curative treatments were tested, but only the fosetyl‐Al preventive treatment was effective in the assayed conditions. Interestingly, seedlings pretreated with both fungicides were less susceptible to the effectors secreted by the pathogen. Our results indicate that fosetyl‐Al and metalaxyl provide some resistance to the plant besides the fungistatic direct action on the pathogen. Further studies to elucidate a possible resistance‐inducing activity of these chemicals and the mechanisms involved are underway.
publishDate 2016
dc.date.none.fl_str_mv 2016-02
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
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://hdl.handle.net/11336/43786
Silva, Patricia Valeria; Vélez, María Laura; Hernández Otaño, D.; Nuñez, C.; Greslebin, Alina Gabriela; Action of fosetyl‐al and metalaxyl against Phytophthora austrocedri; Wiley Blackwell Publishing, Inc; Forest Pathology; 46; 1; 2-2016; 54-66
1437-4781
CONICET Digital
CONICET
url http://hdl.handle.net/11336/43786
identifier_str_mv Silva, Patricia Valeria; Vélez, María Laura; Hernández Otaño, D.; Nuñez, C.; Greslebin, Alina Gabriela; Action of fosetyl‐al and metalaxyl against Phytophthora austrocedri; Wiley Blackwell Publishing, Inc; Forest Pathology; 46; 1; 2-2016; 54-66
1437-4781
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.1111/efp.12216
info:eu-repo/semantics/altIdentifier/url/https://onlinelibrary.wiley.com/doi/abs/10.1111/efp.12216
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
application/pdf
application/pdf
dc.publisher.none.fl_str_mv Wiley Blackwell Publishing, Inc
publisher.none.fl_str_mv Wiley Blackwell Publishing, Inc
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
repository.name.fl_str_mv CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas
repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
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score 13.070432

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