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Curr Opin Cell Biol. 2011 Dec;23(6):686-96. doi: 10.1016/j.ceb.2011.09.006. Epub 2011 Sep 29.

Cell polarity in plants: when two do the same, it is not the same....

Author information

1
Department of Plant Systems Biology, VIB, 9052 Gent, Belgium.

Abstract

In unicellular and multicellular organisms, cell polarity is essential for a wide range of biological processes. An important feature of cell polarity is the asymmetric distribution of proteins in or at the plasma membrane. In plants such polar localized proteins play various specific roles ranging from organizing cell morphogenesis, asymmetric cell division, pathogen defense, nutrient transport and establishment of hormone gradients for developmental patterning. Moreover, flexible respecification of cell polarities enables plants to adjust their physiology and development to environmental changes. Having evolved multicellularity independently and lacking major cell polarity mechanisms of animal cells, plants came up with alternative solutions to generate and respecify cell polarity as well as to regulate polar domains at the plasma membrane.

PMID:
21962973
DOI:
10.1016/j.ceb.2011.09.006
[Indexed for MEDLINE]

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