Transgenerational effect of UV-B priming on photochemistry and associated metabolism in rice seedlings subjected to PEG-induced osmotic stress

Rice being the major food crop for more than half of world population is severely affected by drought stress starting from establishment seedling. We focused on UV-B priming mediated transgenerational tolerance a drought-tolerant rice variety (Vaisakh) towards polyethylene glycol (PEG) 6,000 (20%)-induced drought. Results showed that in F0 generation and re-priming F1 with enhanced PEG potential seedlings increased expression genes encoding antioxidant enzymes stress-related proteins offering better protection to primed plants. maintained oxidative homeostasis plant cell thus ensuring uninterrupted mitochondrial photosynthetic activities. Cumulatively, our results suggest memory retained seeds transferred offspring without any loss. Moreover, further boosted innate tolerant resulting stable cellular redox homeostasis.