Hybrid sideways/longitudinal swimming in the monoflagellate Shewanella oneidensis: from aerotactic band to biofilm
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Date
2020-10Type
- Journal Article
Abstract
Shewanella oneidensis MR-1 are facultative aerobic electroactive bacteria with an appealing potential for sustainable energy production and bioremediation. They gather around air sources, forming aerotactic bands and biofilms. Here, we experimentally follow the evolution of the band around an air bubble, and we find good agreement with the numerical solutions of the pertinent transport equations. Video microscopy reveals a transition between motile and non-motile MR-1 upon oxygen depletion, preventing further development of the biofilm. We discover that MR-1 can alternate between longitudinal fast and sideways slow swimming. The resulting bimodal velocity distributions change in response to different oxygen concentrations and gradients, supporting the biological functions of aerotaxis and confinement. Show more
Publication status
publishedExternal links
Journal / series
Journal of the Royal Society. InterfaceVolume
Pages / Article No.
Publisher
Royal SocietySubject
electroactive bacteria; aerotaxis; biofilm; collective behaviourOrganisational unit
09482 - Vermant, Jan / Vermant, Jan
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