Yong Zhu, Hao Su, Xin-Xian Liu, Ji-Fen Sun, Ling Xiang, Yan-Jing Liu, Zhang-Wei Hu, Xiao-Yu Xiong, Xue-Mei Yang, Sadam Hussain Bhutto, Guo-Bang Li, Yuan-Ying Peng, He Wang, Xu Shen, Zhi-Xue Zhao, Ji-Wei Zhang, Yan-Yan Huang, Jing Fan, Wen-Ming Wang, Yan Li
Reactive oxygen species (ROS) act as a group of signaling molecules in rice functioning in regulation of development and stress responses. Respiratory burst oxidase homologues (Rbohs) are key enzymes in generation of ROS. However, the role of the nine Rboh family members was not fully understood in rice multiple disease resistance and yield traits. In this study, we constructed mutants of each Rboh genes and detected their requirement in rice multiple disease resistance and yield traits. Our results revealed that mutations of five Rboh genes (RbohA, RbohB, RbohE, RbohH, and RbohI) lead to compromised rice blast disease resistance in a disease nursery and lab conditions; mutations of five Rbohs (RbohA, RbohB, RbohC, RbohE, and RbohH) result in suppressed rice sheath blight resistance in a disease nursery and lab conditions; mutations of six Rbohs (RbohA, RbohB, RbohC, RbohE, RbohH and RbohI) lead to decreased rice leaf blight resistance in a paddy yard and ROS production induced by PAMPs and pathogen...
January 3, 2024: Rice