Drought Stress Causes a Reduction in the Biosynthesis of Ascorbic Acid in Soybean Plants.

ABSTRACT: Drought provokes a number of physiological changes in plants including oxidative damage. Ascorbic acid (AsA), also known as vitamin C, is one of the most abundant water-soluble antioxidant compound present in plant tissues. However, little is known on the regulation of AsA biosynthesis under drought stress conditions. In the current work we analyze the effects of water deficit on the biosynthesis of AsA by measuring its content, in vivo biosynthesis and the expression level of genes in the Smirnoff-Wheeler pathway in one of the major legume crop, soybean (Glycine max L. Merr). Since the pathway has not been described in legumes, we first searched for the putative orthologous genes in the soybean genome. We observed a significant genetic redundancy, with multiple genes encodin

SUBMITTER: Seminario A 

PROVIDER: S-EPMC5471321 | biostudies-literature | 2017

REPOSITORIES: biostudies-literature