Sphingolipid synthesis inhibitor fumonisin B1 causes verticillium wilt in cotton  

作　　者：Fan Xu Li Huang Junyao Wang Caixia Ma Yingqing Tan Fanlong Wang Yanhua Fan Ming Luo 

机构地区：[1]Key Laboratory of Biotechnology and Crop Quality Improvement of the Ministry of Agriculture,Biotechnology Research Center,Southwest University,Chongqing 400716,China

出　　处：《Journal of Integrative Plant Biology》2022年第4期836-842,共7页植物学报（英文版）

基　　金：This study was funded by the National Natural Science Foundation of China(31571722 and 31971984).

摘　　要：Verticillium wilt caused by Verticillium dahliae is a major disease of cotton. Acidic protein–lipopolysaccharide complexes are thought to be the toxins responsible for its symptoms. Here,we determined that the sphingolipid biosynthesis inhibitor fumonisin B1(FB1) acts as a toxin and phenocopies the symptoms induced by V. dahliae. Knocking out genes required for FB1 biosynthesis reduced V. dahliae pathogenicity. Moreover, we showed that overexpression of a FB1 and V. dahliae both downregulated gene, Gh IQD10, enhanced verticillium wilt resistance by promoting the expression of brassinosteroid and anti-pathogen genes. Our results provide a new strategy for preventing verticillium wilt in cotton.

关 键 词：synthesis WILT ILL 

分 类 号：S435.621.2[农业科学—农业昆虫与害虫防治]