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dc.contributor.author
Silva, Patricia Valeria
dc.contributor.author
Vélez, María Laura
dc.contributor.author
Hernández Otaño, D.
dc.contributor.author
Nuñez, C.
dc.contributor.author
Greslebin, Alina Gabriela
dc.date.available
2018-04-27T21:47:50Z
dc.date.issued
2016-02
dc.identifier.citation
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
dc.identifier.issn
1437-4781
dc.identifier.uri
http://hdl.handle.net/11336/43786
dc.description.abstract
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.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Wiley Blackwell Publishing, Inc
dc.rights
info:eu-repo/semantics/openAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
Phytophthora Austrocedri
dc.subject
Fosetyl-Al
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Metalaxyl
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Austrocedrus Chilensis
dc.subject.classification
Otras Ciencias Biológicas
dc.subject.classification
Ciencias Biológicas
dc.subject.classification
CIENCIAS NATURALES Y EXACTAS
dc.title
Action of fosetyl‐al and metalaxyl against Phytophthora austrocedri
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2018-04-27T14:01:25Z
dc.journal.volume
46
dc.journal.number
1
dc.journal.pagination
54-66
dc.journal.pais
Reino Unido
dc.journal.ciudad
Londres
dc.description.fil
Fil: Silva, Patricia Valeria. Centro de Investigación y Extensión Forestal Andino Patagónico; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
dc.description.fil
Fil: Vélez, María Laura. Centro de Investigación y Extensión Forestal Andino Patagónico; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
dc.description.fil
Fil: Hernández Otaño, D.. Administración de Parques Nacionales; Argentina
dc.description.fil
Fil: Nuñez, C.. Administración de Parques Nacionales; Argentina
dc.description.fil
Fil: Greslebin, Alina Gabriela. Universidad Nacional de la Patagonia; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
dc.journal.title
Forest Pathology
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/https://dx.doi.org/10.1111/efp.12216
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://onlinelibrary.wiley.com/doi/abs/10.1111/efp.12216
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