Transcription factor involved in abscisic acid-mediated stomatal closure (PubMed:25005917). Regulates the expression of NCED1, a gene involved in the biosynthesis of abscisic acid (ABA) (PubMed:25005917). Required for the stomatal closure induced by the bacterial pathogen Pseudomonas syringae pv tomato DC3000, but not for stomatal reopening (PubMed:25005917). Expressed in guard cells of the epidermis. Induced by abscisic acid (ABA), dehydration and wounding. The NAC domain includes a DNA binding domain and a dimerization domain. Plants silencing JA2 exhibit a dwarf phenotype.