水稻抗稻瘟病分子机制研究进展

Research Progress in Molecular Mechanisms of Rice Blast Resistance

水稻稻瘟病一直是国内外水稻研究工作者希望攻克的难题。由于稻瘟病菌具有高变异性,一般抗病品种的抗性不能长期维持。近年来,关于稻瘟病抗性基因的挖掘、抗性机制的研究取得了一定的进展,这也为选育抗性持久、抗性谱广的抗稻瘟病品种提供了资源基础。本文对目前水稻稻瘟病抗病基因和抗稻瘟病分子机制研究进展进行综述,并对目前急需解决的问题和挑战进行探讨和展望。

Blast is a serious rice disease,and both domestic and overseas rice researchers wish to resolve the problem.Because of the high variability of Magnaporthe grisea,the causal agent of this disease,the general resistant varieties can notremain resistant to it for a long time.In recent years,some progress has been made in the research of rice blast resistance genes and resistance mechanisms,which provides a resource basis for breeding rice blast resistant varieties with lasting resistance and wide resistance spectrum.This paper reviews the research progress in rice blast resistance genes and molecular mechanisms of rice blast resistance,and also discusses and envisions the problems and challenges urgently needed to be resolved.