Auxin Biosynthesis: A Simple Two-Step Pathway Converts Tryptophan to Indole-3-Acetic Acid in Plants

被引：403

作者：

Zhao, Yunde ^{[1
]}

机构：

[1] Univ Calif San Diego, Sect Cell & Dev Biol, La Jolla, CA 92093 USA

来源：

MOLECULAR PLANT | 2012年 / 5卷 / 02期

关键词：

hormonal regulation; hormone biology; genetics; development; auxin; INDOLE-3-PYRUVATE DECARBOXYLASE GENE; YUCCA FLAVIN MONOOXYGENASES; ARABIDOPSIS-THALIANA; REPRODUCTIVE DEVELOPMENT; AZOSPIRILLUM-BRASILENSE; ORGANOGENESIS; EXPRESSION; ENCODES; ENZYMES; PROTEIN;

D O I：

10.1093/mp/ssr104

中图分类号：

Q5 [生物化学]; Q7 [分子生物学];

学科分类号：

071010 ; 081704 ;

摘要：

Indole-3-acetic acid (IAA), the main naturally occurring auxin, is essential for almost every aspect of plant growth and development. However, only recently have studies finally established the first complete auxin biosynthesis pathway that converts tryptophan (Trp) to IAA in plants. Trp is first converted to indole-3-pyruvate (IPA) by the TAA family of amino transferases and subsequently IAA is produced from IPA by the YUC family of flavin monooxygenases. The two-step conversion of Trp to IAA is the main auxin biosynthesis pathway that plays an essential role in many developmental processes.

引用

页码：334 / 338

页数：5

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