Title

Stomatal Development: New Signals And Fate Determinants

Abstract

Stomata and pavement cells are produced by a series of asymmetric divisions and progressive fate transitions within a stem cell lineage. In Arabidopsis, this process is regulated so that new lineages can be inserted between previously differentiated cells while maintaining stomatal spacing. The small peptide EPIDERMAL PATTERNING FACTOR 1 may be a positional signal secreted by stomatal precursors to modulate behavior of nearby cells. Signal-receiving cells may use TOO MANY MOUTHS and ERECTA family receptors and a MAPK pathway to regulate initiation of new lineages, promote asymmetric division, and control the plane of spacing divisions. Cell fate transitions are controlled by basic helix-loop-helix transcription factor (bHLH), MYB, and MADS-box transcription factors, and there is evidence of miRNA regulation. These results provide insight into positive and negative influences on stomatal cell transitions and suggest points of potential environmental regulation. © 2008 Elsevier Ltd. All rights reserved.

Publication Date

2-1-2009

Publication Title

Current Opinion in Plant Biology

Volume

12

Issue

1

Number of Pages

29-35

Document Type

Review

Personal Identifier

scopus

DOI Link

https://doi.org/10.1016/j.pbi.2008.10.006

Socpus ID

58149310919 (Scopus)

Source API URL

https://api.elsevier.com/content/abstract/scopus_id/58149310919

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