Cell polarity in plants: When two do the same, it is not the same... Review Article

Author(s): Dettmer, Jan; Friml, Jiří
Title: Cell polarity in plants: When two do the same, it is not the same...
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.
Keywords: cell division; embryo development; morphogenesis; Cell polarity; cell maturation; Cell Membrane; Auxin; vegetable protein; cell membrane depolarization; nutrient
Publication Title: Current Opinion in Cell Biology
Volume: 23
Issue 6
ISBN: 1879-0410
Publisher: Elsevier  
Date Published: 2011-12-01
Start Page: 686
End Page: 696
DOI: 10.1016/j.ceb.2011.09.006
Open access: no