The involvement of wheat U-box E3 ubiquitin ligase TaPUB1 in salt stress tolerance

查看全文 作　　者：Wenlong [1]Wang;Wenqiang [2]Wang;Yunzhen [1]Wu;Qinxue [1]Li;Guangqiang [1]Zhang;Ruirui [1]Shi;Junjiao [1]Yang;Yong [1]Wang;Wei [1]Wang

机构地区：[1]State Key Laboratory of Crop Biology,Shandong Key Laboratory of Crop Biology,College of Life Sciences,Shandong Agricultural University,Tai’an 271018,China;[2]College of Life Sciences,Zaozhuang University,Zaozhuang 277000,China

出　　处：《Journal of Integrative Plant Biology》索引2020年第62卷第5期,共21页

基　　金：The Science and Technology Plan Projects of Zaozhuang(2019NS01);Doctoral Research Initiation Funds of Zaozhuang University(2018BS043);supported by Funds of Shandong“Double Tops”Program。 摘　　要：U-box E3 ubiquitin ligases play important roles in the ubiquitin/26 S proteasome machinery and in abiotic stress responses. Ta PUB1-overexpressing wheat(Triticum aestivum L.) were generated to evaluate its function in salt tolerance. These plants had more salt stress tolerance during seedling and flowering stages, whereas the Ta PUB1-RNA interference(RNAi)-mediated knock-down transgenic wheat showed more salt stress sensitivity than the wild type(WT). Ta PUB1 overexpression upregulated the expression of genes related to ion channels and increased the net root Na+efflux, but decreased the net K+efflux and H+influx, thereby maintaining a low cytosolic Na+/K+ratio, compared with the WT. However,RNAi-mediated knock-down plants showed the opposite response to salt stress. Ta PUB1 could induce the expression of some genes that improved the antioxidant capacity of plants under salt stress. Ta PUB1 also interacted with Ta MP(Triticum aestivum α-mannosidase protein), a regulator playing an important role in salt response in yeast and in plants. Thus, low cytosolic Na+/K+ratios and better antioxidant enzyme activities could be maintained in wheat with overexpression of Ta PUB1 under salt stress. Therefore, we conclude that the U-box E3 ubiquitin ligase Ta PUB1 positively regulates salt stress tolerance in wheat. 关键词：STRESS WHEAT thereby

相关文献

参考文献（95）
引证文献（14）
耦合文献（64）

参考文献(95)

引证文献(14)

耦合文献(64)

互联网出版许可证新出网证(渝)字10号全国400电话 - 免长途话费

The involvement of wheat U-box E3 ubiquitin ligase TaPUB1 in salt stress tolerance

参考文献(95)

引证文献(14)

耦合文献(64)

用户提示