Abscisic acid and methyl jasmonic acid module anthocyanins and trans-resveratrol accumulation alleviating high temperature deleterious effects in berry skins of field-grown red cultivars

MALOVINI E; DURÁN M; ARANCIBIA C; FONTANA AR; DEIS L; DE ROSAS I; GARGANTINI R; BOTTINI R; CAVAGNARO JB; MARTINEZ L

REVISTA DE LA FACULTAD DE CIENCIAS AGRARIAS DE LA UNIVERSIDAD NACIONAL DE CUYO

UNIV NACIONAL CUYO

Lugar: Mendoza; Año: 2019 vol. 51 p. 451 - 460

0370-4661

Berry skins from red grape cultivars contain significant amounts of polyphenols thatcontribute to wine quality and provide health benefits. These compounds can be elicited byplant hormones. The aim of this work was to increase the content of anthocyanins (ANT)and trans-resveratrol (T-RES) by application of abscisic acid (ABA) and methyl jasmonate(MeJA) in five red V. vinifera cvs. (Bonarda, Malbec, Syrah, Cabernet Sauvignon, and PinotNoir), in two Argentinean contrasting growing regions (Santa Rosa and Valle de Uco).Results showed positive and differential effects of ABA and MeJA on the total ANT contentfor the diverse cultivars with changes in the proportions of blue and red ANT. ABA increasedtotal ANT in both viticultural region, while MeJA had a positive effect only in Santa Rosa.Also, ABA and MeJA induced an accumulation of T-RES in different cultivars, regardless ofthe region; T-RES accumulation elicited by ABA was not previously described. This workbrings out the possibility to use these hormones as practical tools to produce high-qualityred wines in two contrasting viticultural regions.