您好，欢迎访问北京市农林科学院 机构知识库！
北京市农林科学院机构知识库

全部

  • 全部
  • 标题
  • 学者
  • 机构
  • 关键词

Natural variation in the transcription factor REPLUMLESS contributes to both disease resis-tance and plant growth in Arabidopsis

文献类型： 外文期刊

作者： Xu, Miqi 1 ; Wang, Xuncheng 1 ; Liu, Jing 1 ; Jia, Aolin 1 ; Xu, Chao 1 ; Deng, Xing Wang 1 ; He, Guangming 1 ;

作者机构： 1.Peking Univ, Sch Life Sci, Beijing 100871, Peoples R China

2.Peking Univ, Peking Tsinghua Ctr Life Sci, Sch Adv Agr Sci, State Key Lab Prot & Plant Gene Res, Beijing 100871, Peoples R China

3.Beijing Acad Agr & Forestry Sci, Inst Plant Protect, Beijing Key Lab Environm Friendly Management Fruit, Beijing 100097, Peoples R China

关键词： natural variation; GWAS; REPLUMLESS; bacterial resistance; auxin

期刊名称：PLANT COMMUNICATIONS （ 影响因子：8.625； 五年影响因子：8.625 ）

ISSN： 2590-3462

年卷期： 2022 年 3 卷 5 期

页码：

收录情况： SCI

摘要： When attacked by pathogens, plants need to reallocate energy from growth to defense to fend off the in-vaders, frequently incurring growth penalties. This phenomenon is known as the growth-defense tradeoff and is orchestrated by a hardwired transcriptional network. Altering key factors involved in this network has the potential to increase disease resistance without growth or yield loss, but the mechanisms under-lying such changes require further investigation. By conducting a genome-wide association study (GWAS) of leaves infected by the hemi-biotrophic bacterial pathogen Pseudomonas syringae pv. tomato (Pst) DC3000, we discovered that the Arabidopsis transcription factor REPLUMLESS (RPL) is necessary for bacterial resistance. More importantly, RPL functions in promoting both disease resistance and growth. Transcriptome analysis revealed a cluster of genes in the GRETCHEN HAGEN 3 (GH3) family that were significantly upregulated in rpl mutants, leading to the accumulation of indole-3-acetic acid-aspartic acid (IAA-Asp). Consistent with this observation, transcripts of virulence effector genes were activated by IAA-Asp accumulated in the rpl mutants. We found that RPL protein could directly bind to GH3 promoters and repress their expression. RPL also repressed flavonol synthesis by directly repressing CHI expression and thus activated the auxin transport pathway, which promotes plant growth. Therefore, RPL plays an important role in plant immunity and functions in the auxin pathway to optimize Arabidopsis growth and de-fense.

  • 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：北京市农林科学院

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