期刊
PHYSICAL REVIEW LETTERS
卷 111, 期 15, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.111.158101
关键词
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资金
- Spanish Ministerio de Ciencia y Innovacion [FIS2010-22322-C01]
- Ramon y Cajal Fellowship
- EPSRC
- BBSRC
- ERC [247333]
- Wellcome Trust
- BBSRC [BB/F021844/1] Funding Source: UKRI
- EPSRC [EP/H028862/1] Funding Source: UKRI
- Biotechnology and Biological Sciences Research Council [BB/F021844/1] Funding Source: researchfish
- Engineering and Physical Sciences Research Council [EP/H028862/1] Funding Source: researchfish
Groups of beating flagella or cilia often synchronize so that neighboring filaments have identical frequencies and phases. A prime example is provided by the unicellular biflagellate Chlamydomonas reinhardtii, which typically displays synchronous in-phase beating in a low-Reynolds number version of breaststroke swimming. We report the discovery that ptx1, a flagellar-dominance mutant of C. reinhardtii, can exhibit synchronization in precise antiphase, as in the freestyle swimming stroke. High-speed imaging shows that ptx1 flagella switch stochastically between in-phase and antiphase states, and that the latter has a distinct waveform and significantly higher frequency, both of which are strikingly similar to those found during phase slips that stochastically interrupt in-phase beating of the wild-type. Possible mechanisms underlying these observations are discussed.
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