BELLÉE, Anthony; CLUZET, Stephanie; DUFOUR, Marie-Cecile; MÉRILLON, Jean-Michel; CORIO-COSTET, Marie-France

doi:10.1021/acs.jafc.7b05725

Métadonnées

Afficher la notice complète

Licence d’utilisation du document

BELLÉE, Anthony
Santé et agroécologie du vignoble [UMR SAVE]

CLUZET, Stephanie

Unité de Recherche Oenologie [Villenave d'Ornon] [OENO]

DUFOUR, Marie-Cecile
Santé et agroécologie du vignoble [UMR SAVE]

Langue

Article de revue

Ce document a été publié dans

Journal of Agricultural and Food Chemistry. 2018, vol. 66, n° 13, p. 3338-3350

Résumé en anglais

Grapevine is subject to diseases that affect yield and wine quality caused by various pathogens including Botrytis cinerea. To limit the use of fungicides, an alternative is to use plant elicitors such as benzothiadiazole (BTH). We investigated the effect of a fungicide (Pyrimethanil) and an elicitor (benzothiadiazole) on plant defenses. Applications for two consecutive years in the vineyard significantly reduced gray mold. Two and seven days after treatments, the expressions of 48 genes involved in defenses showed differential modulation (up- or down-regulation) depending on treatment. Some genes were identified as potential markers of protection and were linked to an increase in total polyphenols (TP) in leaves. Surprisingly, the fungicide also induced the expression of defense genes and increased the polyphenol content. This suggests that BTH acts as an efficient elicitor in the vineyard and that Pyrimethanil may act, in part, as a defense-inducing agent on the vine.< Réduire

Mots clés

Éliciteur

Vitis vinifera

Expression des gènes

Moisissure

Mots clés en anglais

Bth

Elicitor

Gene Expression

Gray Mold

Polyphenol

Quercetin-3-O-Glucuronide

Pyrimethanil

Vitis Vinifera