In the absence of other acceptors electrons can be transferred from photosystem I to oxygen Programmed Cell Death as a Response to High Light, UV and Drought Stress in Plants IntechOpen Frontiers Ascorbateglutathione cycle involving in response of Bangia fuscopurpurea (Bangiales, Rhodophyta) to hyposalinity Glutathione Dehydrogenase (Ascorbate) an overview ScienceDirect Topics Ascorbate Glutathione Cycle and Abiotic Stress Tolerance in Plants Springer Nature Link Frontiers The Multiple Roles of Ascorbate in the Abiotic Stress Response of Plants: Antioxidant, Cofactor, and Regulator