期刊
JOURNAL OF EXPERIMENTAL BOTANY
卷 60, 期 5, 页码 1515-1521出版社
OXFORD UNIV PRESS
DOI: 10.1093/jxb/ern339
关键词
Cell division; cell specification; pattern formation; positional information; signalling; transcriptional regulation
资金
- NIGMS NIH HHS [T32 GM145304] Funding Source: Medline
- Division Of Integrative Organismal Systems
- Direct For Biological Sciences [0723493] Funding Source: National Science Foundation
A fundamental aspect of multicellular development is the patterning of distinct cell types in appropriate locations. In this review, the molecular genetic control of cell-type pattern formation in the root epidermis of Arabidopsis thaliana is summarized. This developmental system represents a simple and genetically tractable example of plant cell patterning. The distribution of the two epidermal cell types, root-hair cells and non-hair cells, are generated by a combination of positional signalling and lateral inhibition mechanisms. In addition, recent evidence suggests that reinforcing mechanisms are used to ensure that the initial cell fate choice is adopted in a robust manner.
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