Enhancing the ascorbateglutathione cycle reduced fermentation by increasing NAD+ levels during broccoli head storage under controlled atmosphere ScienceDirect Role of Ascorbate on the Fruit Physiology of Pepper (Capsicum annuum L.) Integrative Modeling of Oxidative Stress and C1 Metabolism Reveals Upregulation of Formaldehyde and Downregulation of Glutathione Frontiers Redox homeostasis via gene families of ascorbate glutathione pathway