Comparison of the impact of two molecules on plant defense and on efficacy against botrytis cinerea in the vineyard: a plant defense inducer (Benzothiadiazole) and a fungicide (Pyrimethanil)
Idioma
en
Article de revue
Este ítem está publicado en
Journal of Agricultural and Food Chemistry. 2018, vol. 66, n° 13, p. 3338-3350
American Chemical Society
Resumen en inglés
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 ...Leer más >
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.< Leer menos
Palabras clave
quercetin-3-O-glucuronide
Palabras clave en inglés
BTH
elicitor
gene expression
gray mold
polyphenol
pyrimethanil
vitis vinifera
Orígen
Importado de HalCentros de investigación