✦ LIBER ✦

Modeling the role of the cell cycle in regulating Proteus mirabilis swarm-colony development

✍ Scribed by Bruce P. Ayati

Publisher: Elsevier Science
Year: 2007
Tongue: English
Weight: 628 KB
Volume: 20
Category: Article
ISSN: 0893-9659
DOI: 10.1016/j.aml.2006.11.003

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✦ Synopsis

We present models and computational results which indicate that the spatial and temporal regularity seen in Proteus mirabilis swarm-colony development is largely an expression of a specific, nearly precise age of dedifferentiation in the cell cycle from motile swarmer cells to immotile dividing cells. This contrasts strongly with reaction-diffusion models of Proteus behavior that ignore or average out the age structure of the cell population and instead use only density-dependent mechanisms. We argue the necessity of retaining this known biological feature using explicit age structure in the model, and suggest that certain experiments may validate this underlying mechanism empirically.

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