《植物生理学报》 2017, 53(8): 1348-1358

水稻对稻瘟病的广谱抗性: 分子机制及其育种应用

袁熹, 李大勇, 宋凤鸣^*

浙江大学生物技术研究所, 杭州310058

通信作者：宋凤鸣；E-mail: fmsong@zju.edu.cn

摘　要：

稻瘟病是水稻上最严重的真菌病害之一。由于多数抗瘟基因具有较高的小种特异性, 并且稻瘟菌小种变异频繁, 水稻品种抗瘟性极易丧失, 因此发掘和利用广谱抗性基因是控制稻瘟病的最有效途径之一。本文综述了水稻对稻瘟病广谱抗性基因特性、作用机制与育种应用及其最新研究进展, 为今后水稻-稻瘟病互作的分子机制研究和广谱抗性基因的育种利用提供思路。

关键词：水稻; 广谱抗性; 稻瘟病

收稿：2017-05-19   修定：2017-07-22

资助：国家重点研发计划项目(2016YFD0100600)。

Rice broad-spectrum resistance against blast disease: molecular mechanism and applications

YUAN Xi, LI Da-Yong, SONG Feng-Ming^*

Institute of Biotechnology, Zhejiang University, Hangzhou 310058, China

Corresponding author: SONG Feng-Ming; E-mail: fmsong@zju.edu.cn

Abstract:

Rice blast, caused by Magnaporthe oryzae, is one of the most devasting diseases in rice production. Due to the high level of specificity of most blast resistance genes and the high frequency of variation in M. grisea, loss of resistance in most of the resistant cultivars is one of the most challenges in rice breeding and production. Utilization of broad-spectrum resistance is a promising strategy to control the blast disease in rice field. In this review, we summarized the characteristic, molecular mechanism, breeding utilization of the identified R genes that regulate rice broad-spectrum resistance against M. oryzae and also discussed the future challenges in the elucidation of the molecular mechanism of broad-spectrum resistance in rice.

Key words: rice; broad-spectrum resistance; blast disease (Magnaporthe oryzae)