Motility of Colonial Choanoflagellates and the Statistics of Aggregate Random Walkers
Kirkegaard, Julius Bier
Physical Review Letters
American Physical Society
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Kirkegaard, J. B., Marron, A., & Goldstein, R. (2016). Motility of Colonial Choanoflagellates and the Statistics of Aggregate Random Walkers. Physical Review Letters, 116 (038102)https://doi.org/10.1103/PhysRevLett.116.038102
We illuminate the nature of the three-dimensional random walks of microorganisms composed of individual organisms adhered together. Such aggregate random walkers are typified by choanoflagellates, eukaryotes that are the closest living relatives of animals. In the colony-forming species Salpingoeca rosetta we show that the beating of each flagellum is stochastic and uncorrelated with others, and the vectorial sum of the flagellar propulsion manifests as stochastic helical swimming. A quantitative theory for these results is presented and species variability discussed.
Work supported by the EPSRC and St. Johns College (JBK), ERC Advanced Investigator Grant 247333 and a Wellcome Trust Senior Investigator Award.
European Research Council (247333)
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External DOI: https://doi.org/10.1103/PhysRevLett.116.038102
This record's URL: https://www.repository.cam.ac.uk/handle/1810/252925
Attribution 2.0 UK: England & Wales
Licence URL: http://creativecommons.org/licenses/by/2.0/uk/