《植物生理学报》 2014, 50(10): 1469-1478

调控铝诱导根尖有机酸分泌的分子机制

范伟^1,2, 娄和强², 龚育龙², 刘美雅^2,3, 杨建立², 郑绍建^2,*

¹云南农业大学资源与环境学院, 昆明650201; ²浙江大学生命科学学院, 植物生理学与生物化学国家重点实验室, 杭州310058; ³中国农业科学院茶叶研究所, 杭州310008

通信作者：郑绍建；E-mail: sjzheng@zju.edu.cn；Tel: 0571-88206438

摘　要：

铝诱导根尖有机酸分泌是大多数植物最主要的耐铝机制。本文主要综述了有机酸分泌过程中所涉及的包括有机酸转运蛋白、转运蛋白基因上游序列调节因子、基因拷贝数、转录因子、蛋白可逆磷酸化、有机酸合成与能量代谢等调控进程方面的研究进展, 并对未来的研究前景进行了展望。

关键词：铝毒; 转运蛋白; 有机酸; 转录与翻译后调控; 代谢与能量

收稿：2014-06-23   修定：2014-08-28

资助：国家重点基础研究发展计划(2014CB441000)、国家自然科学基金(31071849和31222049)、中央高校基本科研业务费。

Molecular Mechanisms Regulating Aluminum-Induced Secretion of Organic Acids in Root Apex

FAN Wei^1,2, LOU He-Qiang², GONG Yu-Long², LIU Mei-Ya^2,3, YANG Jian-Li², ZHENG Shao-Jian^2,*

¹College of Resources and Environment, Yunnan Agricultural University, Kunming 650201, China; ²State Key Laboratory of Plant Physiology and Biochemistry, College of Life Sciences, Zhejiang University, Hangzhou 310058, China; ³Tea Research Institute, Chinese Academy of Agricultural Sciences, Hangzhou 310008, China

Corresponding author: ZHENG Shao-Jian; E-mail: sjzheng@zju.edu.cn; Tel: 0571-88206438

Abstract:

The most important aluminum resistant mechanism for a variety of plant species relies on aluminum-induced secretion of organic acids from root apex, the major target of Al toxicity. The recent progresses to understand the regulation processes leading to the ultimate secretion of organic acids, including transporters of organic acids, upstream sequence regulators of transporter gene, gene copy number, transcription factors, reversible protein phosphorylation, synthesis of organic acids and energy metabolism are summarized in this review and the prospects in this field are also proposed.

Key words: aluminum toxicity; transporter; organic acid; transcriptional and posttranslational regulation; metabolism and energy