Fortify the defense frontline:MAPKs phosphorylate receptor-like cytoplasmic kinase to maintain plant resistance in soybean  

作　　者：Lu Rui Wei Wang 

机构地区：[1]College of Biology and Food Engineering,Chongqing Three Gorges University,Chongqing 404120,China [2]State Key Laboratory of Ecological Control of Fujian-Taiwan Crop Pests,Key Laboratory of Ministry of Education for Genetics,Breeding and Multiple Utilization of Crops,Plant Immunity Center,Fujian Agriculture and Forestry University,Fuzhou 350002,China

出　　处：《Stress Biology》2024年第1期486-489,共4页逆境生物学(英文)

基　　金：supported by the Science and Technology Research Program of Chongqing Municipal Education Commission(Grant No.KJQN202201225 to L.R.);the Open Fund of Fujian Provincial Key Laboratory of Eco-Industrial Green Technology(Grant No.WYKF-EIGT2022-6 to L.R.);the National Natural Science Foundation of China(Grant No.32370302 to W.W.).

摘　　要：Mitogen-activated protein kinase(MAPK)activation is one of the significant immune events that respond to pathogens in plants.A MAPK cascade often contains a MAPK kinase kinase(MAPKKK),a MAPK kinase(MAPKK/MKK),and a MAPK.The well-characterized MAPK cascade,to date,is the MAPKKK3/4/5-MKK4/5-MPK3/6 module.Soybean cyst nematodes(SCN)is one of the most devastating soybean pathogens.However,the early immune components contributing to soybean resistance to SCN and the role of the MAPK cascade in the soybean-SCN interaction remain unclear.A recent study published in Plant Cell discovered that GmMPK3/6 phosphorylates a receptor-like cytoplasmic kinase(RLCK),CDG1-LIKE1(GmCDL1),and maintains the stability of GmCDL1 in soybean.Remarkably,GmCDL1 enhances GmMPK3/6 activation and resistance to SCN by phosphorylating GmMAPKKK5 and activating the GmMAPKKK5-GmMKK4-GmMPK3/6 cascade.In addition,two L-type lectin receptor kinases(LecRKs),GmLecRK02g and GmLecRK08g,are involved in the GmCDL1 function after the perception of SCN.taken together,this study not only discovers a complete early immune pathway that responds to SCN infection in soybean,but also reveals a molecular mechanism by which plants maintain the activation of the MAPK cascade and resistance.

关 键 词：Plant immunity SOYBEAN Nematode Mitogen-activated protein kinase(MAPK) Receptor-like cytoplasmic kinase(RLCK) 

分 类 号：R73[医药卫生—肿瘤]