摘要
在植物中类病变坏死突变现象广泛存在 ,突变体植株在无病害侵染也未受逆境或损伤的条件下自发形成与病原物侵染后坏死类似的症状 ,它们与植物抗病及细胞程序化死亡相关 ,并可能增强系统抗病性。综述了几种植物的典型类病变坏死突变体及其基因的研究情况 ,探讨了其发生的机制并对今后的应用前景进行了展望 .
There are extensive disease lesion mimic mutants in plant.These mutants spontaneously produce lesions that resemble disease symptoms in the absence of pathogen attack and other damage or suppressed conditions. Lesion mimic mutations have been shown to be involved in programmed cell death,which in some instances leads to enhanced disease resistance to multiple pathogens.Several plant lesion mimic genes have been cloned,and their molecular mechanisms were studied. The progress in this field will probably provide new approaches to breed crop varieties with durable resistance to pathogens. ;
出处
《中国生物工程杂志》
CAS
CSCD
2003年第1期34-38,共5页
China Biotechnology
关键词
植物
类病变坏死突变体
研究进展
基因定位
Plant Lesion mimic mutant Lesion mimic gene Programmed cell death
