The jasmonate-induced bHLH gene SlJIG functions in terpene biosynthesis and resistance to insects and fungus

作     者：Yunyun Cao Lun Liu Kangsheng Ma Wenjing Wang Hongmei Lv Ming Gao Xinman Wang Xichun Zhang Shuxin Ren Na Zhang Yang-Dong Guo Yunyun Cao;Lun Liu;Kangsheng Ma;Wenjing Wang;Hongmei Lv;Ming Gao;Xinman Wang;Xichun Zhang;Shuxin Ren;Na Zhang;Yang-Dong Guo

作者机构：College of HorticultureChina Agricultural UniversityBeijing 100193China College of Horticulture Science and EngineeringShandong Agricultural UniversityTai'an 271018China Hubei Insect Resources Utilization and Sustainable Pest Management Key LaboratoryCollege of Plant Science and TechnologyHuazhong Agricultural UniversityWuhan 430070China College of Plant Science and TechnologyBeijing University of AgricultureBeijing 102206China School of AgricultureVirginia State UniversityPetersburg 23806VAUSA Sanya Institute of China Agricultural UniversitySanya 572000China 

出 版 物：《Journal of Integrative Plant Biology》 (植物学报（英文版）)

年 卷 期：2022年第64卷第5期

页      面：1102-1115页

核心收录：

学科分类：0710[理学-生物学] 09[农学] 0904[农学-植物保护] 090401[农学-植物病理学] 

基　　金：the support from Beijing Modern Agricultural Industry System for facility vegetable crops the support from Beijing Key Laboratory of Growth and Developmental Regulation for Protected Vegetable Crops and Engineering Research Center of Breeding and Propagation of Horticultural Crops supported by grants from the National Natural Science Foundation of China(32002053,32172599) Hainan Provincial Joint Project of Sanya Yazhou Bay Science and Technology City(320LH013) the Administration of Sanya Yazhouwan Technology City(SYND-2022-07)and LJNY201812 

主　　题：basic helix-loop-helix transcription factor defense response jasmonic acid MYC2 terpene biosynthesis 

摘      要：Jasmonic acid(JA)is a key regulator of plant defense *** the transcription factor MYC2,the master regulator of the JA signaling pathway,orchestrates a hierarchical transcriptional cascade that regulates the JA responses,only a few transcriptional regulators involved in this cascade have been ***,we identified the basic helix-loop-helix(bHLH)transcription factor gene in tomato(Solanum lycopersicum),METHYL JASMONATE(MeJA)-INDUCED GENE(SlJIG),the expression of which was strongly induced by MeJA *** and molecular biology experiments revealed that SlJIG is a direct target of *** knockout plants generated by gene editing had lower terpene contents than the wild type from the lower expression of TERPENE SYNTHASE(TPS)genes,rendering them more appealing to cotton bollworm(Helicoverpa armigera).Moreover,SlJIG knockouts exhibited weaker JA-mediated induction of TPSs,suggesting that SlJIG may participate in JA-induced terpene *** out SlJIG also resulted in attenuated expression of JA-responsive defense genes,which may contribute to the observed lower resistance to cotton bollworm and to the fungus Botrytis *** conclude that SlJIG is a direct target of MYC2,forms a MYC2-SlJIG module,and functions in terpene biosynthesis and resistance against cotton bollworm and ***.