Show simple item record Henriquez, Maria A. Wolski, Erika Alejandra Molina, Oscar I. Adam, Lorne R. Andreu, Adriana Balbina Daayf, Fouad 2017-02-16T13:40:37Z 2012-11
dc.identifier.citation Henriquez, Maria A.; Wolski, Erika Alejandra; Molina, Oscar I.; Adam, Lorne R.; Andreu, Adriana Balbina; et al.; Effects of glucan and eicosapetaeonoic acids on differential regulation on phenilpropanoids and mevalonic pathways during potato response to Phytophthora infestans; Elsevier Masson; Plant Physiology And Biochemistry; 60; 11-2012; 119-128
dc.identifier.issn 0981-9428
dc.description.abstract The effects of Phytophthora infestans glucans, eicosapentaenoic acid (EPA) and isolates of this pathogen, on the differential expression of eight genes from the phenylpropanoid and the mevalonate (Ac-MVA) pathways were analyzed in potato by semi-quantitative RT-PCR and qRT-PCR. The application of EPA had an elicitor effect in Russet Burbank (RB) and Defender (DF) in response to inoculation with a US8 isolate of P. infestans, thereby reducing symptoms of late blight. Such effect was associated with the expression of PAL-1 and PAL-2, since the latter occurred only when EPA was followed by inoculation, whereas these genes were down-regulated in individual treatments RB + EPA, RB + US8, DF + EPA, and DF + US8. The glucan fraction did not by itself suppress phenylpropanoid genes, but its combination with the pathogen resulted in a down-regulation of PAL-1, PAL-2 and CHS. The addition of the glucan fraction to the elicitor EPA, had a negative effect (RB + EPA + GL + US8) since plants showed higher disease symptoms than the ones pretreated with water then infected with US8, and in comparison with RB + EPA + US8 and RB + GL + US8. Exclusive up-regulation of 4CL in DF + US11 and of CHS in DF + EPA + GL + US8, DF + EPA + US11, DF + GL + US11 and DF + EPA + GL + US11, where late blight lesions were not detected, could be associated with potato protection against late blight. Along with previous findings in this pathosystem, these data suggest that genetic resistance in potato against P. infestans is not the result of isolated reactions against the pathogen, but rather the combination of many factors in-line with a polygenic/horizontal resistance.
dc.format application/pdf
dc.language.iso eng
dc.publisher Elsevier Masson
dc.rights info:eu-repo/semantics/restrictedAccess
dc.subject oomycetes
dc.subject effectors
dc.subject phenolics
dc.subject phenylpropanoid
dc.subject defense inducers
dc.subject defense suppressors
dc.subject late blight
dc.subject terpenoids
dc.subject.classification Bioquímica y Biología Molecular
dc.subject.classification Ciencias Biológicas
dc.subject.classification CIENCIAS NATURALES Y EXACTAS
dc.title Effects of glucan and eicosapetaeonoic acids on differential regulation on phenilpropanoids and mevalonic pathways during potato response to Phytophthora infestans
dc.type info:eu-repo/semantics/article
dc.type info:ar-repo/semantics/artículo
dc.type info:eu-repo/semantics/publishedVersion 2017-02-10T18:12:44Z
dc.journal.volume 60
dc.journal.pagination 119-128
dc.journal.pais Francia
dc.description.fil Fil: Henriquez, Maria A.. University Of Manitoba; Canadá
dc.description.fil Fil: Wolski, Erika Alejandra. Universidad Nacional de Mar del Plata. Facultad de Ingeniería; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
dc.description.fil Fil: Molina, Oscar I.. University Of Manitoba; Canadá
dc.description.fil Fil: Adam, Lorne R.. University Of Manitoba; Canadá
dc.description.fil Fil: Andreu, Adriana Balbina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Mar del Plata. Instituto de Investigaciones Biológicas; Argentina. Universidad Nacional de Mar del Plata; Argentina
dc.description.fil Fil: Daayf, Fouad. University Of Manitoba; Canadá
dc.journal.title Plant Physiology And Biochemistry
dc.relation.alternativeid info:eu-repo/semantics/altIdentifier/url/
dc.relation.alternativeid info:eu-repo/semantics/altIdentifier/doi/

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info:eu-repo/semantics/restrictedAccess Excepto donde se diga explícitamente, este item se publica bajo la siguiente descripción: Atribución-NoComercial-SinDerivadas 2.5 Argentina (CC BY-NC-ND 2.5 AR)