活性氧与植物防卫反应  

Reactive oxygen species in plant stress and defense

作　　者：焦春香[1] 

机构地区：[1]大理学院药学院,云南大理671000

出　　处：《大理学院学报（综合版）》2006年第10期73-76,79,共5页Journal of Dali University

摘　　要：目的:总结分析活性氧在植物防卫反应中的作用。方法:根据近10年内公开发表的20篇中英文文献对活性氧的种类、特性,以及在植物抗病过程中所起的作用进行较全面的总结。结果:介绍活性氧的种类、性质,着重讨论了活性氧的产生和消除机理;并对当前该领域今后的研究方向进行了展望。结论:活性氧在植物防卫反应过程中起双重作用,即高浓度时对植物起伤害作用,低浓度时起信号传递作用诱导植物抗性基因和防卫基因的表达。Objective： This paper made a conclusion about the functions and the protective mechanisms of reactive oxygen specie. Methods： It was based on 20 pieces of Chinese and English papers that the speckles and the presence of the reactive oxygen in plant stress and defense was reviewed. Results： The species, comparative characters of reactive oxygen species was introduced. Further more, the functions and the protective mechanisms of reactive oxygen species was emphasized specially. In addition, prospecting the future research direction of this field was concluded. Conclusion： It illuminated the reactive oxygen species had a dual functional that damages cells at high concentration and act as ubiquitous signal molecules to induce the expression of defense genes and adaptive response at low concentration.

关 键 词：活性氧 活性氧进发 系统获得抗病性 防卫反应 

分 类 号：Q946.91[生物学—植物学]