您好，欢迎访问浙江省农业科学院 机构知识库！
浙江省农业科学院机构知识库

全部

  • 全部
  • 标题
  • 学者
  • 机构
  • 关键词

Genome-wide characterization of NAC transcription factors in Camellia sinensis and the involvement of CsNAC28 in drought tolerance

文献类型： 外文期刊

作者： Zhang, Xueying 1 ; Li, Linying 1 ; Lang, Zhuoliang 1 ; Li, Da 3 ; He, Yuqing 1 ; Zhao, Yao 1 ; Tao, Han 1 ; Wei, Jiqian 4 ; Li, Qingsheng 2 ; Hong, Gaojie 1 ;

作者机构： 1.Inst Virol & Biotechnol, Zhejiang Acad Agr Sci, Key Lab Managing Biot & Chem Threats Qual & Safety, Key Lab Biotechnol Plant Protect Minist Agr & Rura, Hangzhou, Peoples R China

2.Zhejiang A&F Univ, Coll Adv Agr Sci, Hangzhou, Peoples R China

3.Zhejiang Acad Agr Sci, Inst Sericulture & Tea, Hangzhou, Peoples R China

4.Hangzhou Agr Technol Extens Ctr, Ecol & Energy Sect, Hangzhou, Peoples R China

关键词： Camellia sinensis; expression pattern; NAC transcription factor; drought stress; abscisic acid

期刊名称：FRONTIERS IN PLANT SCIENCE （ 影响因子：5.6； 五年影响因子：6.8 ）

ISSN： 1664-462X

年卷期： 2022 年 13 卷

页码：

收录情况： SCI

摘要： The NAM, ATAF1/2, and CUC2 (NAC) transcription factors, which are members of a plant-specific gene family, play critical roles during the growth and development of plants and in their adaption to environmental stress. Few NAC transcription factors have been functionally characterized in tea plants (Camellia sinensis). Based on the analysis of the gene structure, motif pattern, and evolutionary relationship, we identified 104 NAC genes in C. sinensis. Among them, CsNAC28 is constitutively expressed in all organs, and most significantly, exhibiting remarkable responsiveness to abscisic acid (ABA) treatment and drought stress. ABA is a primary stress-related hormone. Recently, ABA-responsive element binding factor 2 (CsABF2) was identified in the ABA pathway of C. sinensis. However, the involvement of the CsABF2-mediated ABA pathway in regulating CsNACs was not known. Herein, a series of biochemical and genetic approaches supported the fact that CsNAC28 could potentially act as a transcription factor in the downstream of CsABF2. Furthermore, we investigated the function of CsNAC28 in the adapting of a plant to drought stress. The results showed that overexpression of CsNAC28 in Arabidopsis conferred hypersensitivity to ABA treatment and decreased the accumulation of reactive oxygen species (ROS), resulting in improved dehydration tolerance. Under conditions of drought, the expression levels of ABA pathway-related genes and drought stress-inducible genes were greater in CsNAC28 overexpression lines than in the wild type. Our study's comprehensive characterization of NAC genes in C. sinensis could serve as a foundation for exploring the molecular mechanism of CsNAC-mediated drought responsiveness.

  • 相关文献
作者其他论文 更多>>
置顶
购物车
反馈

© 京ICP备09089781号-29 主办单位：浙江省农业科学院

学术资源： 中国农业科学院 农业专业知识服务系统 农科联盟资源共建共享平台 中国农业科技文献与信息服务平台 中国农业期刊集成服务平台