Stomatal development: new signals and fate determinants.
Stomatal development: new signals and fate determinants.
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DOI:
10.1016/j.pbi.2008.10.006
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发表时间:
2009-02
影响因子:
9.5
通讯作者:
Nadeau, Jeanette A.
中科院分区:
文献类型:
--
作者:
Nadeau, Jeanette A.
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 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.
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