The Rice Endophyte-Derived α-Mannosidase ShAM1 Degrades Host Cell Walls To Activate DAMP-Triggered Immunity against Disease
Zhigang Bu, Wei Li, Xiaoli Liu, Xiaoli Liu, Ying Liu, Yan Gao, Gang Pei, Rui Zhuo, Kunpeng Cui, Ziwei Qin, Heping Zheng, Jie Wu, Yutong Yang, Pin Su, Meiting Cao, Xianqiu Xiong, Xuanming Liu, Xuanming Liu, Yonghua Zhu
Abstract
OsiSh-2 could activate typical plant immunity responses and induce a timely and cost-efficient priming defense against the pathogen M. oryzae in rice. Importantly, we revealed that ShAM1 enhanced plant disease resistance through its hydrolytic enzyme (HE) activity to digest the rice cell wall and release damage-associated molecular patterns. Taken together, these findings provide an example of the interaction mode of endophyte-plant symbionts and suggest that HEs derived from endophytes can be used as environmentally friendly and safe prevention agent for plant disease control.