Attenuation of ethylene signaling increases cotton resistance to a defoliating strain of Verticillium dahliae

作     者：Tianyi Wang Muhammad Shaban Junhui Shi Weiran Wang Shiming Liu Xinhui Nie Yu Yu Jie Kong Steven J.Klosterman Xianlong Zhang Alifu Aierxi Longfu Zhu Tianyi Wang;Muhammad Shaban;Junhui Shi;Weiran Wang;Shiming Liu;Xinhui Nie;Yu Yu;Jie Kong;Steven J.Klosterman;Xianlong Zhang;Alifu Aierxi;Longfu Zhu

作者机构：National Key Laboratory of Crop Genetic ImprovementHuazhong Agricultural UniversityWuhan 430070HubeiChina Department of Plant Breeding and GeneticsUniversity of Agricu Institute of Economic CropsXinjiang Academy of Agricultural SciencesKuqa 842000XinjiangChina Key Laboratory of Oasis Eco-agriculture of the Xinjiang Production and Construction CropsCollege of AgronomyShihezi UniversityShihezi 832000XinjiangChina Xinjiang Academy of Agricultural&Reclamation SciencesShihezi 832000XinjiangChina United States Department of AgricultureAgricultural Research ServiceSalinasCA 93905USA 

出 版 物：《The Crop Journal》 (作物学报（英文版）)

年 卷 期：2023年第11卷第1期

页      面：89-98页

核心收录：

学科分类：09[农学] 0904[农学-植物保护] 090401[农学-植物病理学] 090402[农学-农业昆虫与害虫防治] 

基　　金：supported by the National Key Research and Development Project of China (2018YFD0100403) the National Natural Science Foundation of China (U1703231) 

主　　题：Cotton Verticillium dahilae Ethylene Defoliation 

摘      要：The severity of Verticillium wilt on cotton caused by defoliating strains of Verticillium dahliae has gradually increased and threatens production worldwide. Identification of the molecular components of leaf defoliation may increase cotton tolerance to V. dahliae. Ethylene, a major player in plant physiological processes, is often associated with senescence and defoliation of plants. We investigated the cotton–*** interaction with a focus on the role of ethylene in defoliation and defense against V. *** plants inoculated with V. dahliae isolate V991, a defoliating strain, accumulated more ethylene and showed increased disease symptoms than those inoculated with a non-defoliating strain. In cotton with a transiently silenced ethylene synthesis gene(GhACOs) and signaling gene(GhEINs) during cotton–V. dahliae interaction, ethylene produced was derived from cotton and more ethylene increased cotton susceptibility and defoliation rate. Overexpression of AtCTR1, a negative regulator in ethylene signaling, in cotton reduced sensitivity to ethylene and increased plant resistance to V. ***, the results indicated precise regulation of ethylene synthesis or signaling pathways improve cotton resistant to Verticillium wilt.