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Reaction-diffusion model for pattern formation in E. coli swarming colonies with slime
Ist Teil von
Physical review. E, Statistical, nonlinear, and soft matter physics, 2005-03, Vol.71 (3 Pt 1), p.031908-031908, Article 031908
Ort / Verlag
United States
Erscheinungsjahr
2005
Link zum Volltext
Quelle
PROLA - Physical Review Online Archive
Beschreibungen/Notizen
A new experimental colonial pattern and pattern transition observed in E. coli MG1655 swarming cells grown on semisolid agar are described. We present a reaction-diffusion model that, taking into account the slime generated by these cells and its influence on the bacterial differentiation and motion, reproduces the pattern and successfully predicts the observed changes when the colonial collective motility is limited. In spite of having small nonhyperflagellated swarming cells, under these experimental conditions E. coli MG1655 can very rapidly colonize a surface, with a low branching rate, thanks to a strong fluid production and a locally incremented density of motile, lubricating cells.