Effector TalAE73-Targeted Mediates Bacterial Blight Resistance in Rice.

Transcription activator-like effectors (TALEs) secreted from pv () function as a pathogenicity factor to activate rice bacterial blight (BB) susceptibility, conforming to the gene-for-gene paradigm as well as resistance. pathotypes generally harbor one to three major TALEs targeting genes to determine pathogenicity; conversely, the immunity events mediated by minor TALEs have not been taken seriously. Here, we demonstrated that lipid transfer protein encoding gene positively regulates rice resistance to pathotype PXO61, and TalAE73, a representative member of the most widely distributed TALE family in 135 isolates, transcriptionally activates expression. Further, TalAE73 is an avirulence protein, causing effector-triggered immunity in compatible rice- interaction. In addition, reactive oxygen species accumulation, nitrate uptake, and salicylic acid homeostasis are transcriptionally and physiologically associated with -dependent BB resistance.