Document Detail

Cell-fate specification in the epidermis: a common patterning mechanism in the root and shoot.
MedLine Citation:
PMID:  12495754     Owner:  NLM     Status:  MEDLINE    
The specification of epidermal hairs in Arabidopsis provides a useful model for the study of pattern formation in plants. Although the distributions of hair cells in the root and shoot appear quite different, recent studies show that pattern formation in each relies on a common cassette of transcriptional regulators. During development in each organ, neighboring cells compete to express regulators that specify the primary cell fate (including WEREWOLF [WER]/GLABRA1 [GL1], GL3/bHLH, TRANSPARENT TESTA GLABRA [TTG], and GL2), as well as those that prevent their neighbors from adopting this fate (including CAPRICE [CPC] and TRIPTYCHON [TRY]). The basic mechanism of lateral inhibition with feedback that has been uncovered by recent studies provides a conceptual framework for understanding how patterns of cell fate in general may be specified during plant development.
John Schiefelbein
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Publication Detail:
Type:  Journal Article; Research Support, U.S. Gov't, Non-P.H.S.; Review    
Journal Detail:
Title:  Current opinion in plant biology     Volume:  6     ISSN:  1369-5266     ISO Abbreviation:  Curr. Opin. Plant Biol.     Publication Date:  2003 Feb 
Date Detail:
Created Date:  2002-12-23     Completed Date:  2003-03-10     Revised Date:  2006-11-28    
Medline Journal Info:
Nlm Unique ID:  100883395     Medline TA:  Curr Opin Plant Biol     Country:  United States    
Other Details:
Languages:  eng     Pagination:  74-8     Citation Subset:  IM    
Department of Molecular, Cellular, and Developmental Biology, 830 North University Avenue, University of Michigan, Ann Arbor 48109, USA.
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MeSH Terms
Arabidopsis / genetics,  growth & development*
Arabidopsis Proteins / genetics*,  metabolism
Basic Helix-Loop-Helix Transcription Factors
Carrier Proteins / genetics,  metabolism
Cell Differentiation / physiology
Cell Surface Extensions / physiology
DNA-Binding Proteins / genetics,  metabolism
Homeodomain Proteins / genetics,  metabolism
Plant Epidermis / growth & development*
Plant Proteins / genetics,  metabolism
Plant Roots / growth & development*
Plant Shoots / growth & development*
Proto-Oncogene Proteins c-myb / genetics,  metabolism
Signal Transduction / genetics,  physiology
Transcription Factors / genetics,  metabolism
Reg. No./Substance:
0/ATR1 protein, Arabidopsis; 0/Arabidopsis Proteins; 0/Basic Helix-Loop-Helix Transcription Factors; 0/CPC protein, Arabidopsis; 0/Carrier Proteins; 0/DNA-Binding Proteins; 0/GL2 protein, Arabidopsis; 0/GL3 protein, Arabidopsis; 0/Homeodomain Proteins; 0/Plant Proteins; 0/Proto-Oncogene Proteins c-myb; 0/TRIPTYCHON protein, Arabidopsis; 0/TTG1 protein, Arabidopsis; 0/Transcription Factors; 0/WER protein, Arabidopsis; 144417-31-2/GL1 protein, Arabidopsis

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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