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Trends Plant Sci. 2008 Mar;13(3):121-7. doi: 10.1016/j.tplants.2008.01.004. Epub 2008 Feb 21.

Cell division and endoreduplication: doubtful engines of vegetative growth.

Author information

1
Plant Cell Biology Group, Research School of Biological Sciences, Australian National University, PO Box 475, ACT 2600, Australia. Peter.John@anu.edu.au

Abstract

Currently, there is little information to indicate whether plant cell division and development is the collective effect of individual cell programming (cell-based) or is determined by organ-wide growth (organismal). Modulation of cell division does not confirm cell autonomous programming of cell expansion; instead, final cell size seems to be determined by the balance between cells formed and subsequent tissue growth. Control of growth in regions of the plant therefore has great importance in determining cell, organ and plant development. Here, we question the view that formation of new cells and their programmed expansion is the driving force of growth. We believe there is evidence that division does not drive, but requires, cell growth and a similar requirement for growth is detected in the modified cycle termed endoreduplication.

PMID:
18291706
DOI:
10.1016/j.tplants.2008.01.004
[Indexed for MEDLINE]

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