Sugarcane transcription factor ScWRKY4 negatively regulates resistance to pathogen infection through the JA signaling pathway

作     者：Dongjiao Wang Wei Wang Shoujian Zang Liqian Qin Yanlan Liang Peixia Lin Yachun Su Youxiong Que Dongjiao Wang;Wei Wang;Shoujian Zang;Liqian Qin;Yanlan Liang;Peixia Lin;Yachun Su;Youxiong Que

作者机构：Key Laboratory of Sugarcane Biology and Genetic BreedingMinistry of Agriculture and Rural AffairsKey Laboratory of GeneticsBreeding and Multiple Utilization of CropsMinistry of EducationCollege of AgricultureFujian Agriculture and Forestry UniversityFuzhou 350002FujianChina National Key Laboratory for Tropical Crop BreedingInstitute of Tropical Bioscience and BiotechnologyChinese Academy of Tropical Agricultural SciencesSanya 572024HainanChina 

出 版 物：《The Crop Journal》 (作物学报（英文版）)

年 卷 期：2024年第12卷第1期

页      面：164-176页

核心收录：

学科分类：0710[理学-生物学] 09[农学] 0901[农学-作物学] 

基　　金：supported by the National Key Research and Development Program of China(2022YFD2301100 and 2019YFD1000503) the Natural Science Foundation of Fujian Province(2021J01137) the Special Fund for Science and Technology Innovation of Fujian Agriculture and Forestry University(CXZX2020081A) the China Agriculture Research System(CARS-17) 

主　　题：Disease resistance Expression profile Transcriptome analysis WRKY transcription factors 

摘      要：WRKY transcription factors,transcriptional regulators unique to plants,play an important role in defense response to pathogen ***,the resistance mechanisms of WRKY genes in sugarcane remain *** the present study,gene ontology(GO)enrichment analysis revealed that WRKY gene family in sugarcane was extensively involved in the response to biotic stress and in defense *** identified gene ScWRKY4,a classⅡc member of the WRKY gene family,in sugarcane cultivar *** gene was induced by salicylic acid(SA)and methyl jasmonate(MeJA)***,expression of ScWRKY4 was down-regulated in smut-resistant sugarcane cultivars but up-regulated in smutsusceptible sugarcane cultivars infected with Sporisorium ***,stable overexpression of the ScWRKY4 gene in Nicotiana benthamiana enhanced susceptibility to Fusarium solani *** and caused down-regulated expression of immune marker-related *** analysis indicated suppressed expression of most JAZ genes in the signal transduction ***4 interacted with ScJAZ13 to repress its *** thus hypothesized that the ScWRKY4 gene was involved in the regulatory network of plant disease resistance,most likely through the JA signaling *** present study depicting the molecular involvement of ScWRKY4 in sugarcane disease resistance lays a foundation for future investigation.