[Biological functions of leucine-rich repeat class of receptor-like protein kinases in plants].

This review is devoted to the characterization of the conception and sub-domain property of the leucine-rich repeat class of receptor-like kinase (LRR-RLK) in plants. Research advances on biological functions of LRR-RLK, such as participation in plant defense, regulating developmental process and sensing or transducing hormone signals are discussed in detail. Elucidation of their important roles in signal transduction pathways is emphasized, which include their dimerization with co-receptors and the interaction between RLKs and downstream components KAPP. The prospects for biological functions, mechanism of signal transduction and genetic application of LRR-RLK have been given.