氢气在植物抗胁迫中的作用

刘方, 刘勇波*, 李俊生, 黄海
中国环境科学研究院, 环境基准与风险评估国家重点实验室, 北京100012

通信作者:刘勇波;E-mail: liuyb@craes.org.cn;Tel: 010-84910906

摘 要:

近年来, 一些研究发现氢气作为一种新的信号分子参与植物抗胁迫网络并具有重要作用。本文综述了近年来氢气参与植物胁迫应答的研究, 总结氢气主要通过调节活性氧(ROS)来参与植物抵御胁迫的过程。在植物抗干旱过程中, 氢气通过促进ROS的产生来调节气孔的闭合; 而在植物抗盐渍、金属离子和农药损伤过程中, 氢气通过去除ROS来修复氧化损伤; 氢气还对植物抗病虫害相关基因的表达有调节作用。

关键词:氢气; 植物抗胁迫; 活性氧; 分子机制; 农业应用

收稿:2014-08-28   修定:2015-01-23

资助:转基因生物新品种培育重大专项(2012ZX08011002)、环保公益性行业科研专项(201309038)和环境基准与风险评估国家重点实验室自主研究课题基金项目。

The Role of Hydrogen in Plant Stress Tolerance

LIU Fang, LIU Yong-Bo*, LI Jun-Sheng, HUANG Hai
State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing 100012, China

Corresponding author: LIU Yong-Bo; E-mail: liuyb@craes.org.cn; Tel: 010-84910906

Abstract:

In recent years, some studies have found that hydrogen as a new signal molecules involved in plant stress resistance network and played an important role. Here, we reviewed the research of hydrogen involved in plant stress response in recent years, and summarized the hydrogen participated in the process of plant resistance to stress mainly through regulation of reactive oxygen species (ROS). Hydrogen promotes the ROS production to regulate stomas closure in plant drought tolerance, whereas it scavenges ROS to decrease oxidative damage from saline, metal ions and pesticides. Hydrogen also involves in regulating the expression of genes related with insect- and disease-resistance.

Key words: hydrogen; plant stress tolerance; ROS; molecular mechanism; agricultural application

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