生物
植物对草食的防御
效应器
病菌
植物免疫
抗性(生态学)
过敏反应
防御机制
免疫
植物抗病性
植物
微生物学
生态学
遗传学
基因
免疫学
免疫系统
拟南芥
突变体
作者
Muthappa Senthil‐Kumar,Kirankumar S. Mysore
出处
期刊:Annual Review of Phytopathology
[Annual Reviews]
日期:2013-08-04
卷期号:51 (1): 407-427
被引量:155
标识
DOI:10.1146/annurev-phyto-082712-102319
摘要
Nonhost resistance is a broad-spectrum plant defense that provides immunity to all members of a plant species against all isolates of a microorganism that is pathogenic to other plant species. Upon landing on the surface of a nonhost plant species, a potential bacterial pathogen initially encounters preformed and, later, induced plant defenses. One of the initial defense responses from the plant is pathogen-associated molecular pattern (PAMP)-triggered immunity (PTI). Nonhost plants also have mechanisms to detect nonhost-pathogen effectors and can trigger a defense response referred to as effector-triggered immunity (ETI). This nonhost resistance response often results in a hypersensitive response (HR) at the infection site. This review provides an overview of these plant defense strategies. We enumerate plant genes that impart nonhost resistance and the bacterial counter-defense strategies. In addition, prospects for application of nonhost resistance to achieve broad-spectrum and durable resistance in crop plants are also discussed.
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