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Artículo

New insights into the dynamics of swarming bacteria: A theoretical study

Hansmann, DavidIcon ; Fier, GuidoIcon ; Buceta, Ruben CarlosIcon
Fecha de publicación: 18/12/2016
Editorial: Cold Spring Harbor Laboratory Press
Revista: BioRxiv
ISSN: 2331-8422
Idioma: Inglés
Tipo de recurso: Artículo publicado
Clasificación temática:
Física de los Materiales Condensados

Resumen

In the present work we simulate the basic two-dimensional dynamics of swarming E. coli bacteria on the surface of a moderately soft agar plate. Individual bacteria are modelled by self-propelled ridged bodies (agents), which interact with each other only through inelastic collision and with the highly viscous environment through damping forces. The motion of single agents is modelled closely corresponding to the behaviour of swimming bacteria. The dynamics of the model were adjusted to reproduce the experimental measurements of swimming E. coli K 12. Accordingly, simulations with loosely packed agents (0) show typical run-and-tumble statistics. In contrast, simulations with densely packed agents (0.3-0.7) are dominated by interactions (collisions) between agents which lead to the emergence of swarming behaviour. In addition, we model the motion of single agents on the base of modified run-and-tumble dynamics, where the bacteria do not turn actively during the tumble. We show that simulations with densely packed modified agents lead as well the emergence of swarming behaviour, if rotational diffusion is considered.
Palabras clave: Collective Behaviour , Swarming Motility , Bacterial Swarming
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info:eu-repo/semantics/openAccess Excepto donde se diga explícitamente, este item se publica bajo la siguiente descripción: Creative Commons Attribution-NonCommercial-ShareAlike 2.5 Unported (CC BY-NC-SA 2.5)
Identificadores
URI: http://hdl.handle.net/11336/79640
URL: https://www.biorxiv.org/content/biorxiv/early/2016/12/18/095141.full.pdf
Colecciones
Articulos(CCT - MAR DEL PLATA)
Articulos de CTRO.CIENTIFICO TECNOL.CONICET - MAR DEL PLATA
Citación
Hansmann, David; Fier, Guido; Buceta, Ruben Carlos; New insights into the dynamics of swarming bacteria: A theoretical study; Cold Spring Harbor Laboratory Press; BioRxiv; 18-12-2016; 1-12
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