Characterization of the ABA signal transduction pathway in Vitis vinifera

► The grape ABA signaling cascade consists of at least six SnRK2s. ► Our results indicate organ specificity in the grape ABF genes. ► VvSnRK2.1 and VvSnRK2.6, can serve as the major VvSnRK2 candidates involved in the stomata response to abiotic stress.