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Updated: Aug 11, 2026

A Microfluidic Device for Quantifying Bacterial Chemotaxis in Stable Concentration Gradients
Published on: April 19, 2010
Spatial patterns formed by chemotactic bacteria Escherichia coli
Andrey A Polezhaev1, Ruslan A Pashkov, Alexey I Lobanov
1P.N. Lebedev Physical Institute, Moscow, Russia. apol@lpi.ru
Abstract:
In certain experimental conditions, bacteria form complex spatial-temporal patterns. A striking example of such kind was reported by Budrene and Berg (1991), who observed a wide variety of different colony structures ranging from arrays of spots to radially oriented stripes or arrangements of more complex elongated spots, formed by Escherichia coli. We discuss the relevant mechanisms of intercellular regulation in bacterial colony which may cause pattern formation, and formulate the corresponding mathematical model. In numerical experiments a variety of patterns, observed in real systems, is reproduced. The dynamics of their formation is investigated.
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