Biosynthesis of L-ascorbic acid in plants: new pathways for an old antioxidant

被引：246

作者：

Valpuesta, V ^{[1
]}

Botella, MA ^{[1
]}

机构：

[1] Univ Malaga, Fac Ciencias, Dept Biol Mol & Bioquim, E-29071 Malaga, Spain

来源：

TRENDS IN PLANT SCIENCE | 2004年 / 9卷 / 12期

关键词：

D O I：

10.1016/j.tplants.2004.10.002

中图分类号：

Q94 [植物学];

学科分类号：

071001 ;

摘要：

The biosynthetic pathway of L-ascorbic acid (vitamin C) in plants has been established for several years. However, recent reports describe alternative pathways, revealing a more complex picture of L-ascorbic acid biosynthesis than had been expected. GDP-L-gulose and myo-inositol are proposed as new intermediates in L-ascorbic acid biosynthesis, indicating that part of the animal pathway might also be operating in plants. Enzymatic studies on the GDP-mannose-3',5'-epimerase and L-galactono-1,4-lactone dehydrogenase suggest that they are important regulatory steps for L-ascorbic acid biosynthesis.

引用

页码：573 / 577

页数：5

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