The transcription factor ZmNAC84 increases maize salt tolerance by regulating ZmCAT1 expression

作     者：Yitian Pan Tong Han Yang Xiang Caifen Wang Aying Zhang Yitian Pan;Tong Han;Yang Xiang;Caifen Wang;Aying Zhang

作者机构：College of Life SciencesNanjing Agricultural UniversityNanjing 210095JiangsuChina State Key Laboratory of Crop Genetics&Germplasm Enhancement and UtilizationNanjing Agricultural UniversityNanjing 210095JiangsuChina Sanya Institute of Nanjing Agricultural UniversityNanjing Agricultural UniversitySanya 572025HainanChina Institute of Crop ResearchNingxia Academy of Agricultural and Forestry SciencesYinchuan 750002NingxiaChina 

出 版 物：《The Crop Journal》 (作物学报（英文版）)

年 卷 期：2024年第12卷第5期

页      面：1344-1356页

核心收录：

学科分类：09[农学] 0901[农学-作物学] 

基　　金：supported by Natural Science Foundation of Jiangsu Province (BK20220999) the Fundamental Research Funds for the Central Universities (KJJQ2024009,KYQN2023025) National Natural Science Foundation of China (32201707) China Postdoctoral Science Foundation (2021M701739,2023T160323) Jiangsu Funding Program for Excellent Postdoctoral Talent (2022ZB330) Open Competition Mechanism to Select the Best Candidates Fund of Jiangsu province (JBGS012) Key Research and Development Program of Ningxia Hui Autonomous Region (2023BCF01009) the Achievement Transformation Fund Project of Hainan Research Institute of Nanjing Agricultural University (NAUSY-CG-YB07) 

主　　题：Maize ZmNAC84 ZmCAT1 Salt stress 

摘      要：Salt stress severely affects plant growth and *** transcription factor NAC plays a variety of important roles in plant abiotic stress,but we know relatively little about the specific molecular mechanisms of NAC in antioxidant ***,our genetic studies reveal the positive regulation of salt tolerance in maize by the transcription factor *** salt stress,overexpression of ZmNAC84 in maize increased the expression of ZmCAT1,enhanced CAT activity,and consequently reduced H_(2)O_(2) accumulation,thereby improving salt stress tolerance in *** RNA interference-mediated knockdown of ZmNAC84 produced the opposite ***,we found that ZmNAC84 directly binds to and regulates the expression of the ZmCAT1 promoter,and the hybridized material also demonstrated that ZmCAT1 is a downstream target gene of *** addition,phenotypic and biochemical analyses indicated that ZmCAT1 positively regulated salt tolerance by regulating H_(2)O_(2) accumulation under salt *** together,these results reveal the function of ZmNAC84 in regulating ZmCAT1-mediated antioxidant defense in response to salt stress in plants.