Comparative Study of Trehalose and Trehalose 6-Phosphate to Improve Antioxidant Defense Mechanisms in Wheat and Mustard Seedlings under Salt and Water Deficit Stresses

Trehalose 6-phosphate (T6P) regulates sugar levels and starch metabolism in a plant cell thus interacts with various signaling pathways, after converting T6P into trehalose (Tre), it acts as vital osmoprotectant under stress conditions. This study was conducted using wheat (Triticum aestivum L. cv. Norin 61) mustard (Brassica juncea BARI sharisha 13) seedlings to investigate the role of Tre improving salt water deficit tolerance. The were grown hydroponically Hyponex solution exposed (300 200 mM NaCl for mustard, respectively) (20 12% PEG 6000 stresses or without T6P. demonstrated that negatively influenced growth by destroying photosynthetic pigments increasing oxidative damage. In response stresses, generation H2O2 increased 114 67%, respectively, seedlings, while 86 50%, respectively. Antioxidant defense systems also altered due higher AsA content reduced 65 38% 61 45% subsequent negative results salinity can be overcome exogenous application T6P; these agents decreasing TBARS enzymatic non-enzymatic antioxidants. Moreover, decreased accumulation Na shoots roots seedlings. Therefore, suggest use is apromising strategy alleviate osmotic ionic toxicity plants stresses.