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

The auxin influx carrier, OsAUX3, regulates rice root development and responses to aluminium stress

文献类型： 外文期刊

作者： Wang, Mei 1 ; Qiao, JiYue 1 ; Yu, ChenLiang 2 ; Chen, Hao 1 ; Sun, ChenDong 1 ; Huang, LinZhou 3 ; Li, ChuanYou 3 ; Geisl 1 ;

作者机构： 1.Zhejiang Univ, State Key Lab Plant Physiol & Biochem, Coll Life Sci, Hangzhou 310058, Zhejiang, Peoples R China

2.Zhejiang Acad Agr Sci, Vegetable Res Inst, Hangzhou 310021, Zhejiang, Peoples R China

3.Chinese Acad Sci, State Key Lab Plant Genom, Natl Ctr Plant Gene Res, Inst Genet & Dev Biol, Beijing 100101, Peoples R China

4.Univ Fribourg, Dept Biol, CH-1700 Fribourg, Switzerland

5.Chinese Acad Agr Sci, State Key Lab Rice Biol, China Natl Rice Res Inst, Hangzhou 310006, Zhejiang, Peoples R China

关键词： heavy metal stresses; lateral root initiation; polar auxin transport; primary root elongation; root hair development

期刊名称：PLANT CELL AND ENVIRONMENT （ 影响因子：7.228； 五年影响因子：7.791 ）

ISSN： 0140-7791

年卷期： 2019 年 42 卷 4 期

页码：

收录情况： SCI

摘要： In rice, there are five members of the auxin carrier AUXIN1/LIKE AUX1 family; however, the biological functions of the other four members besides OsAUX1 remain unknown. Here, by using CRISPR/Cas9, we constructed two independent OsAUX3 knock-down lines, osaux3-1 and osaux3-2, in wild-type rice, Hwayoung (WT/HY) and Dongjin (WT/DJ). osaux3-1 and osaux3-2 have shorter primary roots (PRs), decreased lateral root (LR) density, and longer root hairs (RHs) compared with their WT. OsAUX3 expression in PRs, LRs, and RHs further supports that OsAUX3 plays a critical role in the regulation of root development. OsAUX3 locates at the plasma membrane and functions as an auxin influx carrier affecting acropetal auxin transport. OsAUX3 is up-regulated in the root apex under aluminium (Al) stress, and osaux3-2 is insensitive to Al treatments. Furthermore, 1-naphthylacetic acid accented the sensitivity of WT/DJ and osaux3-2 to respond to Al stress. Auxin concentrations, Al contents, and Al-induced reactive oxygen species-mediated damage in osaux3-2 under Al stress are lower than in WT, indicating that OsAUX3 is involved in Al-induced inhibition of root growth. This study uncovers a novel pathway alleviating Al-induced oxidative damage by inhibition of acropetal auxin transport and provides a new option for engineering Al-tolerant rice species.

  • 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