Topological transition in filamentous cyanobacteria: from motion to structure

Cammann, J, Faluweki, MK, Dambacher, N, Goehring, L ORCID: https://orcid.org/0000-0002-3858-7295 and Mazza, MG, 2024. Topological transition in filamentous cyanobacteria: from motion to structure. Communications Physics, 7: 376. ISSN 2399-3650

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Abstract

Many active systems are capable of forming intriguing patterns at scales significantly larger than the size of their individual constituents. Cyanobacteria are one of the most ancient and important phyla of organisms that has allowed the evolution of more complex life forms. Despite its importance, the role of motility on the pattern formation of their colonies is not understood. Here, we investigate the large-scale collective effects and rich dynamics of gliding filamentous cyanobacteria colonies, while still retaining information about the individual constituents’ dynamics and their interactions. We investigate both the colony’s transient and steady-state dynamics and find good agreement with experiments. We furthermore show that the Péclet number and aligning interaction strength govern the system’s topological transition from an isotropic distribution to a state of large-scale reticulate patterns. Although the system is topologically non-trivial, the parallel and perpendicular pair correlation functions provide structural information about the colony, and thus can be used to extract information about the early stages of biofilm formation. Finally, we find that the effects of the filaments’ length cannot be reduced to a system of interacting points. Our model proves to reproduce both cyanobacteria colonies and systems of biofilaments where curvature is transported by motility

Item Type:	Journal article
Publication Title:	Communications Physics
Creators:	Cammann, J., Faluweki, M.K., Dambacher, N., Goehring, L. and Mazza, M.G.
Publisher:	Springer
Date:	20 November 2024
Volume:	7
ISSN:	2399-3650
Identifiers:	Number Type 10.1038/s42005-024-01866-5 DOI 2295311 Other
Rights:	© the author(s) 2024. 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/.
Divisions:	Schools > School of Science and Technology
Record created by:	Jonathan Gallacher
Date Added:	27 Jan 2025 10:18
Last Modified:	27 Jan 2025 10:18
URI:	https://irep.ntu.ac.uk/id/eprint/52923

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