Abstract
Plant is endowed with sessile habit and nutrient acquisition mainly through the root organ, which also provides an excellent model to study stem cell fate and asymmetric division due to well-organized cell layers and relatively simple cell types in root meristem. Besides genetic material DNA wrapped around histone octamer, chromatin structure determined by chromatin modification including DNA methylation, histone modification and chromatin remodeling also contributes greatly to the regulation of gene expression. In this review, we summarize the current progresses on the molecular mechanisms of chromatin modification in regulating root development.
Highlights
The root system constitutes the underground world of a plant, and it takes charge of nutrient and water supply for the whole plant under normal and stress environments
plant homeodomain (PHD)-containing protein REPRESSOR OF WUSCHEL1 (ROW1) is an H3K4me3 reader that is required for quiescent center (QC) identity maintenance and stem cell niche (SCN) development by recognizing the H3K4me3 mark of the WOX5 promoter to repress its transcription in the proximal root meristem
Chromatin modification mainly consists of DNA methylation, histone modification and chromatin remodeling
Summary
The root system constitutes the underground world of a plant, and it takes charge of nutrient and water supply for the whole plant under normal and stress environments. Another H3K4 methyltransferase Arabidopsis homolog of trithorax1 (ATX1/SDG27) is implicated in SCN maintenance and cell patterning during root development; the loss-of-function of mutant atx1-1 reveals the retarded growth of primary roots due to reduced RAM activity, and disorganized cell patterns due to loss of coordination between cell division and proliferation (Napsucialy-Mendivil et al, 2014).
Sign-in/Register to view highlights & summary Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
