Molecular motors govern liquid-like ordering and fusion dynamics of bacterial colonies
| Autor: | Anton Welker, Katja Siewering, Niklas Bender, Tom Cronenberg, Berenike Maier, Robert Zöllner, Marc Hennes, Claudia Meel, Enno R. Oldewurtel |
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| Rok vydání: | 2019 |
| Předmět: |
0301 basic medicine
030106 microbiology Biophysics General Physics and Astronomy FOS: Physical sciences Condensed Matter - Soft Condensed Matter Radial distribution function Models Biological Pilus Surface tension 03 medical and health sciences Molecular motor Physics - Biological Physics Physics Adenosine Triphosphatases Fusion Chemistry Dynamics (mechanics) Biofilm Neisseria gonorrhoeae 030104 developmental biology Order (biology) Chemical physics Biological Physics (physics.bio-ph) Fimbriae Bacterial Soft Condensed Matter (cond-mat.soft) |
| DOI: | 10.48550/arxiv.1902.02345 |
| Popis: | Bacteria can adjust the structure of colonies and biofilms to enhance their survival rate under external stress. Here, we explore the link between bacterial interaction forces and colony structure. We show that the activity of extracellular pilus motors enhances local ordering and accelerates fusion dynamics of bacterial colonies. The radial distribution function of mature colonies shows local fluidlike order. The degree and dynamics of ordering are dependent on motor activity. At a larger scale, the fusion dynamics of two colonies shows liquidlike behavior whereby motor activity strongly affects surface tension and viscosity. |
| Databáze: | OpenAIRE |
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