Vitamin C metabolism and plant acclimation to environmental stress

Maruta Takanori

doi:10.20632/vso.95.9_405

Bibliographic Information

Other Title

ビタミンC代謝と植物の環境ストレス順応（特集「ビタミン・バイオファクター研究の新潮流」（第72回大会　若手シンポジウム））

Abstract

Vitamin C (ascorbate) is a potent water-soluble antioxidant and acts as a cofactor for many enzymes. Plants contain ascorbate at very high levels, and, for humans, they are the main dietary source of this vitamin. Despite the tremendous efforts made so far, the following fundamental questions still remain: why and how plants accumulate ascorbate in their body. During the evolution of plants, they have acquired original pathways for ascorbate biosynthesis as well as the use of ascorbate for the antioxidant system and recycling. These allowed plants to synthesize ascorbate ‘safely’ and to use it for the antioxidant system very efficiently. Recently, our research group has studied 1) the impacts of ascorbate levels on plant growth and stress resistance, 2) the physiological significance of plant-specific H₂O₂-scavenging enzymes (ascorbate peroxidases), and 3) the molecular mechanism of ascorbate recycling and its role in ascorbate pool size regulation. In this review, I summarize recent advances in this field and try to answer the above two fundamental questions.

Journal

VITAMINS

VITAMINS 95 (9), 405-412, 2021-09-25

THE VITAMIN SOCIETY OF JAPAN

Keywords

Details 詳細情報について

CRID: 1390856539346129536

DOI: 10.20632/vso.95.9_405

ISSN: 2424080X; 0006386X

Text Lang: ja

Data Source

JaLC

Abstract License Flag: Allowed

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