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Cited by 49Marine Invertebrate Physiology and EcologyGenetic and Kidney Cyst DiseasesNonlinear Dynamics and Pattern Formation

Mechanical synchronization of ciliary beating within comb plates of ctenophores

Tamm, Sidney L.·1984·Journal of Experimental Biology
DOI 10.1242/jeb.113.1.401
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Abstract

The mechanism which synchronizes the beating of the hundreds of thousands of long cilia making up a ctenophore comb plate was investigated by microsurgical experiments on single comb plates of Mnemiopsis and Pleurobrachia. Comb plates of lobate ctenophores (e.g. Mnemiopsis) are triggered to beat by ciliated grooves which run between the centres of adjacent plates. By creating gaps or introducing mechanical barriers between two parts of a plate, or by severing the cells at the base of a plate, it was shown that physical proximity of cilia, not tissue continuity, is required for synchronization of beating. In Pleurobrachia only the first comb plate of each row is activated by a ciliated groove, and similar experiments to those done on Mnemiopsis gave identical results. Although adjacent comb plates in Pleurobrachia are triggered mechanically by movements of the preceding plates without the need for an intraplate synchronizing mechanism, unilateral amputation of a plate showed that cilia within these plates may also be synchronized by mechanical coupling. Therefore, in cases where the beating of a comb plate is triggered by a ciliated groove - either at the head of a comb row (in all ctenophores) or along the row (lobates only) - the cilia within the plate are synchronized by hydrodynamic coupling forces between them, not by electrical coupling between their cells as assumed previously.

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  • Coordination of cilia can often be achieved by non-neural means, such as hydrodynamic coupling causing metachronal waves.

    “However, coordination of cilia can often be achieved by non-neural means. In particular, adjacent cilia in multiciliated epithelia spontaneously synchronize their beating activity by means of hydrodynamic coupling, leading to the formation of metachronal waves in multiciliated epithelia or ciliary bands [14-16].”

    From An option space for early neural evolution (2015) · cites this paper as [14]

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Authors
Tamm, S. L.
Affiliations
Boston University (US)
Corresponding author
Tamm, Sidney L.
ORCID
Tamm, Sidney L.
Venue
Journal of Experimental Biology
Publisher
The Company of Biologists
Published
1984-11-01
Volume
113
Issue
1
Pages
401-408
ISSN
  • 0022-0949 (ISSN-L)
  • 1477-9145
DOI
10.1242/jeb.113.1.401
OpenAlex
W2410445467
Cited by
49
References
14
Citations by year
2025: 2 · 2024: 1 · 2023: 6 · 2022: 4 · 2021: 2 · 2020: 2 · 2019: 4 · 2018: 1 · 2017: 2 · 2015: 2 · 2014: 1 · 2013: 2
FWCI
2.50
Type
journal article
Language
en
Open access
closed
Licence
www.biologists.com/user-licence-1-1/ (vor)
Locations
  • Journal of Experimental Biology (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Physical Sciences › Earth and Planetary Sciences › Paleontology › Marine Invertebrate Physiology and Ecology
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Genetic and Kidney Cyst Diseases
  • Physical Sciences › Computer Science › Computer Networks and Communications › Nonlinear Dynamics and Pattern Formation
Keywords
ctenophores, ciliary beating, mechanical coupling, hydrodynamic coupling, Mnemiopsis, microsurgery, cilia
MeSH terms
Animals, Biomechanical Phenomena, Cilia, Cnidaria, Micromanipulation, Models, Biological, Seawater, Species Specificity, Ciliophora

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