期刊
PHYSICA D-NONLINEAR PHENOMENA
卷 234, 期 2, 页码 90-97出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.physd.2007.07.002
关键词
bacterial colonies pattern formation; ring-like structures; migration-consolidation
We present a simple model for the description of ring-like concentric structures in bacterial colonies. We model the differences between Bacillus subtilis and Proteus mirabilis colonies by using a different dependence of the duration of the consolidation phase on the concentration of agar. We compare our results to experimental data from these two bacterial species colonies and obtain a good agreement. Based on this analysis, we formulate a hypothesis on the connection of the diffusion constant that appears in the model to the experimental agar concentration. (c) 2007 Elsevier B.V. All rights reserved.
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