| Literature DB >> 29386120 |
Xiangpei Kong1, Huiyu Tian1, Qianqian Yu2, Feng Zhang1, Rong Wang3, Shan Gao4, Wenhong Xu1, Jiajia Liu1, Eilon Shani5, Chunxiang Fu6, Gongke Zhou6, Liangran Zhang1, Xiansheng Zhang7, Zhaojun Ding8.
Abstract
The root stem cell niche, which is composed of four mitotically inactive quiescent center (QC) cells and the surrounding actively divided stem cells in Arabidopsis, is critical for growth and root development. Here, we demonstrate that the Arabidopsis prohibitin protein PHB3 is required for the maintenance of root stem cell niche identity by both inhibiting proliferative processes in the QC and stimulating cell division in the proximal meristem (PM). PHB3 coordinates cell division and differentiation in the root apical meristem by restricting the spatial expression of ethylene response factor (ERF) transcription factors 115, 114, and 109. ERF115, ERF114, and ERF109 mediate ROS signaling, in a PLT-independent manner, to control root stem cell niche maintenance and root growth through phytosulfokine (PSK) peptide hormones in Arabidopsis.Entities:
Keywords: ERF; PSK; ROS; prohibitin 3; root; stem cell niche
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Year: 2018 PMID： 29386120 DOI： 10.1016/j.celrep.2017.12.105
Source DB: PubMed Journal: Cell Rep Impact factor: 9.423