Chaotic model for lévy walks in swarming bacteria

A - Papers appearing in refereed journals

Ariel, G., Be’er, A. and Reynolds, A. M. 2017. Chaotic model for lévy walks in swarming bacteria. Physical Review Letters. 118 (22), p. 228102. https://doi.org/10.1103/PhysRevLett.118.228102

AuthorsAriel, G., Be’er, A. and Reynolds, A. M.
Abstract

We describe a new mechanism for Lévy walks, explaining the recently observed superdiffusion of swarming bacteria. The model hinges on several key physical properties of bacteria, such as an elongated cell shape, self-propulsion, and a collectively generated regular vortexlike flow. In particular, chaos and Lévy walking are a consequence of group dynamics. The model explains how cells can fine-tune the geometric properties of their trajectories. Experiments confirm the spectrum of these patterns in fluorescently labeled swarming Bacillus subtilis.

Keywordsbiological fluid dynamics; cell aggregation; locomotion; swarming
Year of Publication2017
JournalPhysical Review Letters
Journal citation118 (22), p. 228102
Digital Object Identifier (DOI)https://doi.org/10.1103/PhysRevLett.118.228102
PubMed ID28621992
Open accessPublished as ‘gold’ (paid) open access
FunderBiotechnology and Biological Sciences Research Council
Funder project or codeDelivering Sustainable Systems (SS) [ISPG]
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Publisher's version
Copyright license
CC BY
Output statusPublished
Publication dates
Online02 Jun 2017
Publication process dates
Accepted16 Jan 2017
PublisherAmerican Physical Society (APS)
Grant IDBBS/E/C/00005195
Copyright licenseCC BY
ISSN0031-9007

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