Role of L-Ascorbate in Alleviating Abiotic Stresses in Crop Plants

Jelli Venkatesh ； Se Won Park

《Botanical Studies》 55卷4月 (2014/04) Pp. 1-19

https://doi.org/10.1186/1999-3110-55-38

並列摘要

L-ascorbic acid (vitamin C) is a major antioxidant in plants and plays a significant role in mitigation of excessive cellular reactive oxygen species activities caused by number of abiotic stresses. Plant ascorbate levels change differentially in response to varying environmental stress conditions, depending on the degree of stress and species sensitivity. Successful modulation of ascorbate biosynthesis through genetic manipulation of genes involved in biosynthesis, catabolism and recycling of ascorbate has been achieved. Recently, role of ascorbate in alleviating number of abiotic stresses has been highlighted in crop plants. In this article, we discuss the current understanding of ascorbate biosynthesis and its antioxidant role in order to increase our comprehension of how ascorbate helps plants to counteract or cope with various abiotic stresses.

並列關鍵字

Abiotic stress ； Antioxidant ； L-ascorbate ； Reactive oxygen species ； Transgenics