The versatile functions of OsALDH2B1 provide a genic basis for growth–defense trade-offs in rice
Yinggen Ke, Meng Yuan, Hongbo Liu, Shugang Hui, F. Xiao‐Feng Qin, Jie Chen, Qinglu Zhang, Qinglu Zhang, Xianghua Li, Jinghua Xiao, Qifa Zhang, Qifa Zhang, Shiping Wang
Abstract
greatly enhanced resistance to broad-spectrum pathogens, including fungal blast, bacterial leaf blight, and leaf streak, but caused severe phenotypic changes such as male sterility and reduced plant size, grain size, and number. We showed that its primary function as a mitochondrial aldehyde dehydrogenase conditions male fertility. Its moonlight function of transcriptional regulation, featuring both repressing and activating activities, regulates a diverse range of biological processes involving brassinolide, G protein, jasmonic acid, and salicylic acid signaling pathways. Such regulations cause large impacts on the morphology and immunity of rice plants. The versatile functions of OsALDH2B1 provide an example of the genic basis of growth-defense trade-offs in plants.