for example, reported that Nitric oxide induced higher activities of antioxidant enzymes along with enhanced resistance to B. cinerea in ripening tomato fruit. In the present study, Nitric oxide-induced increases in total phenolics and flavonoids, classes of compounds with antioxidant and antifungal effects, and provides evidence that Nitric oxide-mediated resistance might be associated with promotive effects on antioxidant systems in fruit.