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Motility and Self-Organization of Gliding Chlamydomonas Populations

Title data

Till, Sebastian ; Ebmeier, Florian ; Fragkopoulos, Alexandros ; Mazza, Marco G. ; Bäumchen, Oliver:
Motility and Self-Organization of Gliding Chlamydomonas Populations.
Ithaca, NY, USA , 2021

Official URL: Volltext

Abstract in another language

Cellular appendages such as cilia and flagella represent universal tools enabling cells and microbes,
among other essential functionalities, to propel themselves in diverse environments. In its planktonic,
i.e. freely swimming, state the unicellular bi-flagellated microbe Chlamydomonas reinhardtii
employs a periodic breaststroke-like flagellar beating to displace the surrounding fluid. Another
flagella-mediated motility mode is observed for surface-associated Chlamydomonas cells, which glide
along the surface by means of force transduction through an intraflagellar transport machinery. Experiments
and statistical motility analysis demonstrate that this gliding motility enhances clustering
and supports self-organization of Chlamydomonas populations. We employ Minkowski functionals
to characterize the spatiotemporal organization of the surface-associated cell monolayer. We find
that simulations based on a purely mechanistic approach cannot capture the observed non-random
cell configurations. Quantitative agreement with experimental data however is achieved when considering
a minimal cognitive model of the flagellar mechanosensing.

Further data

Item Type: Preprint, postprint
Keywords: Cell motility; Self-orginization; Active matter
Institutions of the University: Faculties
Faculties > Faculty of Mathematics, Physics und Computer Science
Faculties > Faculty of Mathematics, Physics und Computer Science > Department of Physics
Faculties > Faculty of Mathematics, Physics und Computer Science > Department of Physics > Chair Experimental Physics V
Faculties > Faculty of Mathematics, Physics und Computer Science > Department of Physics > Chair Experimental Physics V > Chair Experimental Physics V - Univ.-Prof. Dr. Oliver Bäumchen
Result of work at the UBT: Yes
DDC Subjects: 500 Science
500 Science > 530 Physics
Date Deposited: 12 Aug 2021 08:24
Last Modified: 12 Aug 2021 08:24
URI: https://eref.uni-bayreuth.de/id/eprint/66770