关键词: 类过敏反应, 广谱抗病性, 细胞程序性死亡, 防卫反应

Abstract: Plants develop broad-spectrum resistance by hypersensitive response-like response. A hypersensitive reaction-like (Hrl) trait usually confers enhanced plant resistance to a wide range of pathogens. The dissection of Hrl traits and related genes are essential for breeding of broad-spectrum resistance varieties, improving crop adaptability and stability. The process of Hrl-mediated broad-spectrum resistance can be described as following stages: Burst of reactive oxygen species, transformation of signal molecule and activation of defense system. This paper reviewed these stages with the hope of being useful for researchers, which was expected to provide reference for plant disease resistance research.

Key words: hypersensitive response-like, broad-spectrum resistance, programmed cell death, defense response