OsRbohI is the indispensable NADPH oxidase for molecular-patterns-induced reactive oxygen species production in rice
Zhao Zhifang, Aiqing Sun, Wenfeng Shan, Xinhang Zheng, Ying Wang, Lu Bai, Yuchen Xu, Zhuo An, Xiaoyi Wang, Yuanmeng Wang, Jiangbo Fan
Abstract
The rapid generation of reactive oxygen species (ROS), or ROS burst, is a key feature of pathogen-associated molecular patterns (PAMPs)-triggered immunity, which is mediated by plasma membrane resident respiratory burst oxidase homologs (Rbohs) in plants (Wang et al., 2020). In Arabidopsis, AtRbohD is a well-documented Rboh responsible for PAMP-triggered ROS bursts, with mutations in AtRbohD leading to an abolished ROS response upon PAMP treatments. In rice, OsRbohB has been extensively studied and initially considered the counterpart to AtRbohD (Wong et al., 2007; Fan et al., 2018; Wang et al., 2020; Li et al., 2022; Wang and Kawano, 2022).