Defense and counter defense during Phytophthora infection
【摘要】：In nature, plants are constantly attacked by a wide variety of pathogens. During plant-pathogen interactions, the apoplast constitutes a major battlefield. Initially, pathogens have to tackle with various barriers in plant apoplast. However, the conserved pathogen associated molecular patterns(PAMP) of the invading pathogens could be perceived by host cell surface–localized receptors and thereby eliciting a set of basal defense responses. To achieve successful infection, pathogens developed sophisticated strategies to modulate plant immunity. We recently identified the glycoside hydrolase XEG1 from the soybean root rot pathogen Phytophthora sojae. XEG1, on the one hand functions as a virulence factor essential for Phytophthora infection, and on the other hand acts as a novel PAMP that can be recognized by multiple plant species. In my talk, I will present data to explain how XEG1 regulates Phytophthora virulence and plant immunity.