期刊
BIOCHEMICAL AND BIOPHYSICAL RESEARCH COMMUNICATIONS
卷 488, 期 4, 页码 609-613出版社
ACADEMIC PRESS INC ELSEVIER SCIENCE
DOI: 10.1016/j.bbrc.2017.05.085
关键词
Root hair development; Epigenetic regulation; GL2-Interacting proteins; TPL; Arabidopsis
资金
- NIH [GM50224]
- NSF [MCB 1118491]
- USDA/NIFA [2013-02918]
- BARD [IS-4605-13C]
- Direct For Biological Sciences
- Div Of Molecular and Cellular Bioscience [1118491] Funding Source: National Science Foundation
Understanding how root hair development is controlled is important for understanding of many fundamental aspects of plant biology. Previously, we identified two plant-specific adaptor proteins GIR1 and GIR2 that interact with the major regulator of root hair development GL2 and suppress formation of root hair. Here, we show that GIR1 and GIR2 also interact with the co-repressor TOPLESS (TPL). This interaction required the GIR1 protein EAR motif, and was essential for the transcriptional repressor activity of GIRL. Both GIR1 and GIR2 promoted histone hypoacetylation of their target chromatin. Potentially, GIR1 and GIR2 might may link TPL to and participate in epigenetic regulation of root hair development. (C) 2017 Elsevier Inc. All rights reserved.
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