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arXiv · cond-mat/9904367

Modelling of spatio-temporal patterns in bacterial colonies

A. M. Lacasta·I. R. Cantalapiedra·C. E. Auguet·A. Penaranda·L. Ramirez-Piscina
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Abstract

A diffusion-reaction model for the growth of bacterial colonies is presented. The often observed cooperative behavior developed by bacteria which increases their motility in adverse growth conditions is here introduced as a nonlinear diffusion term. The presence of this mechanism depends on a response which can present hysteresis. By changing only the concentrations of agar and initial nutrient, numerical integration of the proposed model reproduces the different patterns shown by {\it Bacillus subtilis} OG-01.

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A. M. Lacasta, I. R. Cantalapiedra, C. E. Auguet, A. Penaranda, L. Ramirez-Piscina. 1999-04-26. Modelling of spatio-temporal patterns in bacterial colonies. https://doi.org/10.1103/physreve.59.7036

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