Stomatal development: new signals and fate determinants

    Authors

    J. A. Nadeau

    Comments

    Authors: contact us about adding a copy of your work at STARS@ucf.edu

    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.

    Journal Title

    Current Opinion in Plant Biology

    Volume

    12

    Issue/Number

    1

    Publication Date

    1-1-2009

    Document Type

    Article

    First Page

    29

    Last Page

    35

    WOS Identifier

    WOS:000262974900006

    ISSN

    1369-5266

    Share

    COinS