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Impact of grapevine downy and powdery mildew diversity on efficacy of phosphonate derivatives (fosetyl-AL and fertilizer PK2) and salicylic acid analog (BTH) described as stimulators of plant defences

hal.structure.identifierSanté et agroécologie du vignoble [UMR SAVE]
dc.contributor.authorDUFOUR, Marie-Cecile
hal.structure.identifierSanté et agroécologie du vignoble [UMR SAVE]
dc.contributor.authorCORIO-COSTET, Marie-France
dc.date.accessioned2024-04-08T12:29:42Z
dc.date.available2024-04-08T12:29:42Z
dc.date.issued2012
dc.date.conference2009-05-12
dc.identifier.isbn978-92-9067-261-6
dc.identifier.urihttps://oskar-bordeaux.fr/handle/20.500.12278/196950
dc.description.abstractEnGrapevine is subjected to numerous forms of pathogen aggression, especially downy and powdery mildews (Erysiphe necator and Plasmopara viticola). To develop new integrated pest management strategies and to understand the impact of alternative methods like plant defence stimulators on the evolution of bioaggressor populations, it is important to investigate the role of genetic variability and the evolution potential of pathogen populations subject to alternative method selection, in order to decrease the risk of resistant populations. The efficacy of two phosphonate derivatives (Fosetyl-Al and PK2, a foliar fertilizer) and benzothiadiazol (BTH), a salicylic acid analog, were assessed on the induction of grapevine defences against various phenotypes of grape downy mildew and various genotype groups of powdery mildews in bioassay: firstly by measuring the growth inhibition of pathogens after treatments with the different products; secondly by monitoring gene expressions coding for enzymes of phenylpropanoids (PAL, STS, CHS, CHI, LDOX, BAN), phytohormones (LOX, ACC, PAL) biosynthesis pathways and genes coding for PR proteins (CHIT4c, PGIP, PIN, GLU, PR1, PR10); and finally, by quantifying secondary metabolite production. Thus correlations between gene expression levels, efficacy and phytoalexin production were obtained.
dc.language.isoen
dc.publisherIOBC-WPRS
dc.title.enImpact of grapevine downy and powdery mildew diversity on efficacy of phosphonate derivatives (fosetyl-AL and fertilizer PK2) and salicylic acid analog (BTH) described as stimulators of plant defences
dc.typeAutre communication scientifique (congrès sans actes - poster - séminaire...)
dc.subject.halSciences du Vivant [q-bio]
bordeaux.page284 p.
bordeaux.volume83
bordeaux.hal.laboratoriesSanté et Agro-Ecologie du Vignoble (SAVE) - UMR 1065*
bordeaux.institutionBordeaux Sciences Agro
bordeaux.institutionINRAE
bordeaux.conference.titleWorking Group “Induced resistance in plants against insects and diseases”
bordeaux.countryES
bordeaux.conference.cityGrenade
bordeaux.peerReviewedoui
hal.identifierhal-02749758
hal.version1
hal.invitednon
hal.conference.end2009-05-16
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-02749758v1
bordeaux.COinSctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.date=2012&rft.volume=83&rft.spage=284%20p.&rft.epage=284%20p.&rft.au=DUFOUR,%20Marie-Cecile&CORIO-COSTET,%20Marie-France&rft.isbn=978-92-9067-261-6&rft.genre=conference


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