Enhancing the ascorbateglutathione cycle reduced fermentation by increasing NAD+ levels during broccoli head storage under controlled atmosphere ScienceDirect Imaging glutathione depletion in the rat brain using ascorbate derived hyperpolarized MR and PET probes Frontiers Redox homeostasis via gene families of ascorbate glutathione pathway Frontiers Endophytic fungus Serendipita indica accelerates ascorbate glutathione cycle of white clover in response to water stress