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Emergence of synchronized beating during the regrowth of eukaryotic flagella

AuthorsGoldstein, Raymond E.; Polin, Marco; Tuval, Idan
Issue Date2011
PublisherAmerican Physical Society
CitationPhysical Review Letters 107 (2011)
AbstractA fundamental issue in the biology of eukaryotic flagella is the origin of synchronized beating observed in tissues and organisms containing multiple flagella. Recent studies of the biflagellate unicellular alga Chlamydomonas reinhardtii provided the first evidence that the interflagellar coupling responsible for synchronization is of hydrodynamic origin. To investigate this mechanism in detail, we study here synchronization in Chlamydomonas as its flagella slowly regrow after mechanically induced self-scission. The duration of synchronized intervals is found to be strongly dependent on flagellar length. Analysis within a stochastic model of coupled phase oscillators is used to extract the length dependence of the interflagellar coupling and the intrinsic beat frequencies of the two flagella. Physical and biological considerations that may explain these results are proposed. © 2011 American Physical Society.
Identifiersdoi: 10.1103/PhysRevLett.107.148103
issn: 0031-9007
Appears in Collections:(IMEDEA) Artículos
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