Surface conversion of the dynamics of bacteria escaping chemorepellents
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- dc.contributor.author Braham, Asma
- dc.contributor.author Lemelle, Laurence
- dc.contributor.author Ducasse, Romain
- dc.contributor.author Toukabri, Houyem
- dc.contributor.author Mottin, Eleonore
- dc.contributor.author Fabrèges, Benoit
- dc.contributor.author Calvez, Vincent
- dc.contributor.author Place, Christophe
- dc.date.accessioned 2024-12-02T16:19:00Z
- dc.date.available 2024-12-02T16:19:00Z
- dc.date.issued 2024
- dc.description.abstract Flagellar swimming hydrodynamics confers a recognized advantage for attachment on solid surfaces. Whether this motility further enables the following environmental cues was experimentally explored. Motile E. coli (OD ~ 0.1) in a 100 µm-thick channel were exposed to off-equilibrium gradients set by a chemorepellent Ni(NO3)2-source (250 mM). Single bacterial dynamics at the solid surface was analyzed by dark-field videomicroscopy at a fixed position. The number of bacteria indicated their congregation into a wave escaping from the repellent source. Besides the high velocity drift in the propagation direction within the wave, an unexpectedly high perpendicular component drift was also observed. Swimming hydrodynamics CW-bends the bacteria trajectories during their primo approach to the surface (< 2 µm), and a high enough tumbling frequency likely preserves a notable lateral drift. This comprehension substantiates a survival strategy tailored to toxic environments, which involves drifting along surfaces, promoting the inception of colonization at the most advantageous sites.
- dc.description.sponsorship This project has received funding from the European Research Council (ERC) under the European Union’s Horizon 2020 research and innovation program (grant agreement No 865711). The strain was kindly provided by J. S. Parkinson.
- dc.format.mimetype application/pdf
- dc.identifier.citation Braham A, Lemelle L, Ducasse R, Toukabri H, Mottin E, Fabrèges B, et al. Surface conversion of the dynamics of bacteria escaping chemorepellents. Eur Phys J E Soft Matter. 2024 Sep 15;47(9):56. DOI: 10.1140/epje/s10189-024-00450-7
- dc.identifier.doi http://dx.doi.org/10.1140/epje/s10189-024-00450-7
- dc.identifier.issn 1292-8941
- dc.identifier.uri http://hdl.handle.net/10230/68882
- dc.language.iso eng
- dc.publisher Springer
- dc.relation.ispartof Eur Phys J E Soft Matter. 2024 Sep 15;47(9):56
- dc.relation.projectID info:eu-repo/grantAgreement/EC/H2020/865711
- dc.rights © The Author(s) 2024. Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/.
- dc.rights.accessRights info:eu-repo/semantics/openAccess
- dc.rights.uri http://creativecommons.org/licenses/by/4.0/
- dc.subject.other Bacteris
- dc.title Surface conversion of the dynamics of bacteria escaping chemorepellents
- dc.type info:eu-repo/semantics/article
- dc.type.version info:eu-repo/semantics/publishedVersion