Hydrogen peroxide, ascorbate, and glutathione: building the FoyerHalliwellAsada pathway Planta Springer Nature Link Frontiers The Multiple Roles of Ascorbate in the Abiotic Stress Response of Plants: Antioxidant, Cofactor, and Regulator Ascorbate Glutathione Cycle and Abiotic Stress Tolerance in Plants Springer Nature Link Regulation of Ascorbate Glutathione Pathway in Mitigating Oxidative Damage in Plants under Abiotic Stress Glutathione Dehydrogenase (Ascorbate) an overview ScienceDirect Topics In the absence of other acceptors electrons can be transferred from photosystem I to oxygen