The study of hormonal metabolism of Trincadeira and Syrah cultivars indicates new roles of salicylic acid, jasmonates, ABA and IAA during grape ripening and upon infection with Botrytis cinerea

•Substantial reprogramming of hormonal metabolism occurs during grape ripening.•Grape cultivars differ in the metabolism of ABA, IAA and jasmonates during ripening.•Substantial reprogramming of hormonal metabolism occurs during grape defense.•Salicylic acid and IAA may be involved in defense against Botrytis cinerea.•High basal levels of SA, jasmonates and IAA and signaling are associated with tolerance.