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BcWRKY25-BcWRKY33A-BcLRP1/BcCOW1 module promotes root development for improved salt tolerance in Bok choy

作     者:Huiyu Wang Yushan Zheng Meiyun Wang Wusheng Liu Ying Li Dong Xiao Tongkun Liu Xilin Hou Huiyu Wang;Yushan Zheng;Meiyun Wang;Wusheng Liu;Ying Li;Dong Xiao;Tongkun Liu;Xilin Hou

作者机构:State Key Laboratory of Crop Genetics & Germplasm EnhancementKey Laboratory of Biology and Genetic Improvement of Horticultural Crops(East China)Ministry of Agriculture and Rural Affairs of ChinaEngineering Research Center of Germplasm Enhancement and Utilization of Horticultural CropsMinistry of Education of ChinaNanjing Agricultural UniversityNo.1 Weigang RoadXuanwu DistrictNanjing 210095China Department of Plant Science and TechnologyBeijing Key Laboratory of New Technology in Agricultural ApplicationNational Demonstration Center for Experimental Plant Production EducationBeijing University of AgricultureNo.7 Beinong RoadChangping DistrictBeijing 102206China State Key Laboratory of Crop Genetics & Germplasm EnhancementKey Laboratory of Biology and Genetic Improvement of Horticultural Crops(East China)Ministry of Agriculture and Rural Affairs of ChinaEngineering Research Center of Germplasm Enhancement and Utilization of Horticultural CropsMinistry of Education of ChinaNanjing Agricultural UniversityNo.1 Weigang RoadXuanwu DistrictNanjing 210095China Department of Horticultural ScienceNorth Carolina State University2101 Hillsborough StreetRaleighNorth Carolina 27607USA State Key Laboratory of Crop Genetics & Germplasm EnhancementKey Laboratory of Biology and Genetic Improvement of Horticultural Crops(East China)Ministry of Agriculture and Rural Affairs of ChinaEngineering Research Center of Germplasm Enhancement and Utilization of Horticultural CropsMinistry of Education of ChinaNanjing Agricultural UniversityNo.1 Weigang RoadXuanwu DistrictNanjing 210095China Nanjing Suman Plasma Engineering Research InstituteNanjing Agricultural UniversityNo.7 Yinian RoadJiangning DistrictNanjing 210095China 

出 版 物:《园艺研究(英文)》 (Horticulture Research)

年 卷 期:2025年第12卷第1期

页      面:137-148页

核心收录:

基  金:国家自然科学基金 Postgraduate Research & Practice Innovation Program of Jiangsu Province National Vegetable Industry Technology System to T.L the USDA National Institute of Food and Agriculture (NIFA) Hatch project 

主  题:development tolerance improved module salt root bccow1 bclrp bcwrky choy 

摘      要:Root development is a complex process involving phytohormones and transcription *** previous research has demonstrated that BcWRKY33A is significantly expressed in Bok choy roots under salt stress,and heterologous expression of BcWRKY33A increases salt tolerance and promotes root development in transgenic ***,the precise molecular mechanisms by which BcWRKY33A governs root development remain ***,we investigated the role of BcWRKY33A in both root elongation and root hair formation in transgenic Bok choy *** data indicated that overexpression of BcWRKY33A stimulated root growth and stabilized root hair morphology,while silencing BcWRKY33A prevented primary root elongation and resulted in abnormal root hairs ***,our research uncovered that BcWRKY33A directly binds to the promoters of BcLRP1 and BcCOW1,leading to an upregulation of their *** transgenic Bok choy roots,increased BcLRP1 and BcCOW1 transcript levels improved primary root elongation and root hair formation,***,we pinpointed BcWRKY25 as a NaCl-responsive gene that directly stimulates the expression of BcWRKY33A in response to salt *** results shed light on the regulatory mechanisms governing root development by BcWRKY25-BcWRKY33A-BcLRP1/BcCOW1 module and propose potential strategies for improving salt tolerance in Bok choy.

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