Molecular Characterization of a Dehydroascorbate Reductase from Pinus bungeana Cloning and Expression Analysis of FaMDHAR and FaGR Gene from Strawberry Relationship Between Ascorbic Acid Content and the Enzyme ActivitiesInvolved in AsA Metabolism of Potato Study on Ascorbic Acid and Relative Enzymes Against Cadmium Stress in the Roots of Vicia sativa L. Desiccation Sensitivity of Trichilia dregeana Axes and Antioxidant Role of Ascorbic Acid Relationship Between Ascorbic Acid Content and the Enzyme ActivitiesInvolved in AsA Metabolism of Potato