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

文献类型： 外文期刊

作者： Wang, Tianyi 1 ; Shaban, Muhammad 1 ; Shi, Junhui 1 ; Wang, Weiran 3 ; Liu, Shiming 1 ; Nie, Xinhui 4 ; Yu, Yu 5 ; Kong, Jie 3 ; Klosterman, Steven J. 6 ; Zhang, Xianlong 1 ; Aierxi, Alifu 3 ; Zhu, Longfu 1 ;

作者机构： 1.Huazhong Agr Univ, Natl Key Lab Crop Genet Improvement, Wuhan 430070, Hubei, Peoples R China

2.Univ Agr Faisalabad, Dept Plant Breeding & Genet, Sub Campus Burewala, Faisalabad 61010, Punjab, Pakistan

3.Xinjiang Acad Agr Sci, Inst Econ Crops, Kuqa 842000, Xinjiang, Peoples R China

4.Shihezi Univ, Coll Agron, Key Lab Oasis Ecoagr Xinjiang Prod & Construct Cro, Shihezi 832000, Xinjiang, Peoples R China

5.Xinjiang Acad Agr & Reclamat Sci, Shihezi 832000, Xinjiang, Peoples R China

6.ARS, USDA, Salinas, CA 93905 USA

关键词： Cotton; Verticillium dahilae; Ethylene; Defoliation

期刊名称：CROP JOURNAL （ 影响因子：6.6； 五年影响因子：6.5 ）

ISSN： 2095-5421

年卷期： 2023 年 11 卷 1 期

页码：

收录情况： SCI

摘要： The severity of Verticillium wilt on cotton caused by defoliating strains of Verticillium dahliae has gradu-ally 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-V. dahliae interaction with a focus on the role of ethylene in defoliation and defense against V. dahliae. Cotton 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 cot-ton-V. dahliae interaction, ethylene produced was derived from cotton and more ethylene increased cot-ton 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. dahliae. Collectively, the results indicated precise regulation of ethylene synthesis or signaling pathways improve cotton resistant to Verticillium wilt.(c) 2022 Crop Science Society of China and Institute of Crop Science, CAAS. Production and hosting by Elsevier B.V. on behalf of KeAi Communications Co., Ltd. This is an open access article under the CC BY-NC -ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).

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