Microcolony and Biofilm Formation as a Survival Strategy for Bacteria

Details Microcolony and Biofilm Formation as a Survival Strategy for Bacteria Microcolony and Biofilm Formation as a Survival Strategy for Bacteria

2006-11-27

arxiv.org/abs/q-bio/0611087v1

Biology

Quantitative Biology

Quantitative Methods

24 pages, 9 figures, dissertation chapter

Scientific paper

Bacterial communities such as biofilms are widely recognised as being important for survival and persistence of bacteria in harsh environments. Mechanistic models of biofilm growth indicate that the way in which the surface is seeded can effect the morphology of simulated biofilms. Experimental studies indicate that genes which are important for chemotaxis also influence biofilm formation, perhaps by influencing aggregation on a surface. Understanding aggregation and microcolony formation could therefore help clarify factors influencing biofilm formation as well as understanding how groups may influence the fitness of bacteria. In this paper I develop an Individual Based Model to examine how different behaviours involved in microcolony formation on a surface determines patterns of group sizes, and link patterns to bacterial fitness. I also provide a method for comparing data with model hypotheses to identify bacterial behaviours in experimental systems.

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