《植物生理学报》 2011, 47(4): 321-330

铝诱导植物程序性细胞死亡信号转导的研究进展

何虎翼^1,2, 何龙飞^1,*, 顾明华¹

1广西大学农学院, 南宁530004; 2广西农业科学院经济作物研究所, 南宁530007

通信作者：何龙飞；E-mail: lfhe@gxu.edu.cn；Tel: 0771-3235212-806

摘　要：

铝是制约酸性土壤上作物生产的主要因素。铝诱导氧化胁迫产生大量活性氧/一氧化氮, 引起胞质钙超载, 通过线粒 体信号转导途径激发相关凋亡基因, 从而引起细胞主动死亡, 以减轻铝对植物的进一步毒害。本文综述了铝诱导程序性细 胞死亡的信号分子、相关基因以及信号转导途径, 对未来的研究方向提出了展望, 为深入研究植物铝毒害机理和耐铝机制 提供参考。

关键词：铝; 程序性细胞死亡; 信号因子; 基因; 信号转导途径

收稿：2010-10-12   修定：2011-01-12

资助：国家自然科学基金(30560070和30960181)。

The Progress of Signal Transduction of Aluminum-Induced Programmed Cell Death in Plants

HE Hu-Yi^1,2, HE Long-Fei^1,*, GU Ming-Hua¹

¹College of Agronomy, Guangxi University, Nanning 530004, China; ²Cash Crops Research Institute, Guangxi Academy of Agricultural Sciences, Nanning 530007, China

Corresponding author: HE Long-Fei; E-mail: lfhe@gxu.edu.cn; Tel: 0771-3235212-806

Abstract:

Aluminum (Al) is a major limiting factor for crop production in acid soil. Al induces oxidative stress which generates a lot of reactive oxygen species (ROS) or nitric oxide (NO), resulting in calcium overloading. Cell death is initiated by exploding some associated-apoptosis genes through mitochondrial signal transduction pathway to decrease Al toxicity. In this paper, it is summarized signal molecular, related genes and signal transduction pathway of Al-induced programmed cell death (PCD) in plants, and the research prospects are proposed. It provides references for further research on the mechanisms of Al toxicity and Al tolerance in plants.

Key words: aluminum; programmed cell death; signal factor; gene; signal transduction pathway