Determination of Symmetric and Asymmetric Division Planes in Plant Cells

The cellular organization of plant tissues is determined by patterns of cell division and growth coupled with cellular differentiation. Cells proliferate mainly via symmetric division, whereas asymmetric divisions are associated with initiation of new developmental patterns and cell types. Division...

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Bibliographic Details
Published in:Annual review of plant biology 2011-01, Vol.62 (1), p.387-409
Main Authors: Rasmussen, Carolyn G, Humphries, John A, Smith, Laurie G
Format: Article
Language:English
Subjects:
Cell Division
Cell growth
Cell Polarity
cells
Cytoskeleton
Cytoskeleton - physiology
Cytoskeleton - ultrastructure
Flowers & plants
metaphase
Plant biology
Plant Cells
Plant Proteins - metabolism
Plant Proteins - physiology
Plant Stomata - growth & development
plant tissues
Plant Vascular Bundle - cytology
Plant Vascular Bundle - growth & development
Plant Vascular Bundle - physiology
Plants - ultrastructure
proteins
Seeds - cytology
Seeds - ultrastructure
Spindle Apparatus - physiology
Spindle Apparatus - ultrastructure
Tissues
Transport Vesicles - physiology
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Summary:The cellular organization of plant tissues is determined by patterns of cell division and growth coupled with cellular differentiation. Cells proliferate mainly via symmetric division, whereas asymmetric divisions are associated with initiation of new developmental patterns and cell types. Division planes in both symmetrically and asymmetrically dividing cells are established through the action of a cortical preprophase band (PPB) of cytoskeletal filaments, which is disassembled upon transition to metaphase, leaving behind a cortical division site (CDS) to which the cytokinetic phragmoplast is later guided to position the cell plate. Recent progress has been made in understanding PPB formation and function as well as the nature and function of the CDS. In asymmetrically dividing cells, division plane establishment is governed by cell polarity. Recent work is beginning to shed light on polarization mechanisms in asymmetrically dividing cells, with receptor-like proteins and potential downstream effectors emerging as important players in this process.
ISSN:1543-5008
1545-2123
DOI:10.1146/annurev-arplant-042110-103802