Swimming, Feeding and Inversion of Multicellular Choanoflagellate Sheets

Autor:	Fung, Lloyd, Konkol, Adam, Ishikawa, Takuji, Larson, Ben, Brunet, Thibaut, Goldstein, Raymond E.
Rok vydání:	2023
Předmět:	Condensed Matter - Soft Condensed Matter Physics - Biological Physics Quantitative Biology - Cell Behavior
Druh dokumentu:	Working Paper
Popis:	The recent discovery of the striking sheet-like multicellular choanoflagellate species $Choanoeca~flexa$ that dynamically interconverts between two hemispherical forms of opposite orientation raises fundamental questions in cell and evolutionary biology, as choanoflagellates are the closest living relatives of animals. It similarly motivates questions in fluid and solid mechanics concerning the differential swimming speeds in the two states and the mechanism of curvature inversion triggered by changes in the geometry of microvilli emanating from each cell. Here we develop fluid dynamical and mechanical models to address these observations and show that they capture the main features of the swimming, feeding, and inversion of $C.~flexa$ colonies. Comment: 5 pages, 3 figures + Supplementary Material (videos on request from REG)
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/2303.07727 Zobrazit plný text záznamu View this record from Arxiv