AtROP6 is involved in reactive oxygen species signaling in response to iron‐deficiency stress in Arabidopsis thaliana. Issue 20 (8th October 2018)

• Record Type: Journal Article
• Authors: Zhai, Longmei; Sun, Chaohua; Feng, Yi; Li, Duyue; Chai, Xiaofen; Wang, Lei; Sun, Qiran; Zhang, Guifen; Li, Yi; Wu, Ting; Zhang, Xinzhong; Xu, Xuefeng; Wang, Yi; Han, Zhenhai
• Is Part Of: FEBS letters. Volume 592:Issue 20(2018)
• Page Start: 3446
• Page End: 3459
• Publication Date: 2018-10-08
• Subjects: AtROP6 -- iron deficiency -- reactive oxygen species; Biochemistry -- Periodicals; Biophysics -- Periodicals; Molecular biology -- Periodicals; Biochimie -- Périodiques; Biochemistry; Biophysics; Molecular biology; Periodicals; 572.05
• DOI: 10.1002/1873-3468.13257
• Languages: English
• ISSNs: 0014-5793

Abstract

Abstract : Understanding the mechanism of iron (Fe)‐deficiency responses is crucial for improving plant Fe bioavailability. Here, we found that the Arabidopsis Rho‐like GTPase 6 mutant ( rop6 ) is less sensitive to Fe‐deficiency responses and has reduced levels of reactive oxygen species (ROS) compared to wild‐type (WT), while AtROP6 ‐overexpressing seedlings exhibit more sensitivity to Fe‐deficiency responses and has higher levels of ROS compared to WT. Moreover, treatment with H2 O2 improves the sensitivity to Fe‐deficiency responses in rop6 mutants. By using the yeast two‐hybrid system, we further demonstrate the direct interaction between AtROP6 and Arabidopsis respiratory burst oxidase homolog D (AtRBOHD), which controls the generation of ROS. Overall, we suggest that AtROP6 is involved in AtRBOHD ‐mediated ROS signaling to modulate Fe‐deficiency responses in Arabidopsis thaliana . Abstract :