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Fine structure of the neuromuscular system of Polyorchis penicillatus (Hydromedusae, Cnidaria)

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Summary

Polyorchis penicillatus exhibits outer, inner and endodermal nerve rings. The inner ring contains a number of giant axons with infolded plasma membranes and annular gap junctions. The existence of an innervation supplying the velar radial muscle strengthens the view that the steering mechanism is under nervous control. The basal portions of the cells of the endoderm canals form a muscle band which might enable the animal to regulate the flow of materials or could perform peristalsis.

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References

  • Albertini, D.F., Fawcett, D.W., Olds, P.J.: Morphological variations in the gap junctions of ovarian granulosa cells. Tiss. Cell 7, 389–405 (1975)

    Google Scholar 

  • Anderson, P.A.V., Mackie, G.O.: Electrically coupled photosensitive neurons control swimming in a jellyfish. Science 197, 186–188 (1977)

    Google Scholar 

  • Bouillon, J.: Etude monographique du genre Limnocnida (Limnomedusae). Ann. Soc. Zool. Belg. 87, 283–500 (1956)

    Google Scholar 

  • Bouillon, J., Nielson, M.: Etude de quelques organes sensoriels de cnidaires. Arch. Biol. (Bruxelles) 85, 307–328 (1974)

    Google Scholar 

  • Bullock, T.H., Horridge, G.A.: Structure and function in the nervous system of invertebrates. San Francisco-London: N.H. Freeman 1965

    Google Scholar 

  • Chapman, D.M., Pantin, C.F.A., Robson, E.A.: Muscles in coelenterates. Rev. canad. Biol. 21, 267–278 (1962)

    Google Scholar 

  • Davis, L.E.: Ultrastructural evidence for the presence of nerve cells in the gastrodermis of Hydra. Z. Zellforsch. 123, 1–17 (1972)

    Google Scholar 

  • Eakin, R.M., Westfall, J.A.: Fine structure of photoreceptors in the hydromedusan, Polyorchis penicillatus. Proc. nat. Acad. Sci. (Wash.) 48, 826–833 (1962)

    Google Scholar 

  • Gladfelter, W.B.: Structure and function of the locomotory system of Polyorchis montereyensis (Cnidaria, Hydrozoa). Helgolander Wiss. Meeresunters. 23, 38–79 (1972)

    Google Scholar 

  • Hertwig, O., Hertwig, R.: Das Nervensystem und die Sinnesorgane der Medusen. Leipzig: Vogel 1878

    Google Scholar 

  • Horridge, G.A.: The nerves and muscles of medusae. IV Inhibition in Aequorea forskalia. J. exp. Biol. 32, 642–648 (1955)

    Google Scholar 

  • Horridge, G.A.: Presumed photoreceptor cilia in a ctenophore. Quart. J. micr. Sci. 105, 311–317 (1964)

    Google Scholar 

  • Jha, R.K., Mackie, G.O.: The recognition, distribution and ultrastructure of hydrozoan nerve elements. J. Morp. 123, 43–61 (1967)

    Google Scholar 

  • Kawaguti, S., Hamakoshi, T.: Electron microscopic studies on the striated and smooth muscles of an anthomedusa Spirocodon saltatrix. Biol. J. Okayama Univ. 9, 127–139 (1963)

    Google Scholar 

  • Keough, E.M., Summers, R.G.: An ultrastructural investigation of the striated subumbrellar musculature of the anthomedusan, Pennaria tiarella. J. Morp. 149, 507–526 (1976)

    Google Scholar 

  • Larsen, W.J.: Structural diversity of gap junctions. A review. Tiss. Cell 9, 373–394 (1977)

    Google Scholar 

  • Mackie, G.O.: Neurological complexity in medusae: A report of central nervous organization in Sarsia. In: Actas del 1° Simposio Internacional de Zoofilogenia, Salamanca (R. Alvarado, E. Gadea and y A de Haro, eds.), pp. 269–280. Salamanca: Universidad de Salamanca 1971

    Google Scholar 

  • Mackie, G.O.: Neurobiology of Stomotoca. II. Pacemakers and conduction pathways. J. Neurobiol. 6, 357–378 (1975)

    Google Scholar 

  • Mackie, G.O., Singla, C.L.: Neurobiology of Stomotoca. I. Action systems. J. Neurobiol. 6, 339–356 (1975)

    Google Scholar 

  • Merk, F.B., Botticelli, C.R., Albright, J.T.: An intercellular response to estrogen by granulosa cells in the rat ovary. An electron microscopic study. Endocrinology 90, 992–1007 (1972)

    Google Scholar 

  • Pruktin, L.: Mucous metaplasia and gap junctions in the vitamin A acid treated skin tumor, Keratoacanthoma. Cancer Res. 35, 364–369 (1975)

    Google Scholar 

  • Richardson, K.C., Jarett, L., Finke, E.H.: Embedding in epoxy resins for ultrathin sectioning in electron microscopy. Stain Technol. 35, 313–322 (1960)

    Google Scholar 

  • Singla, C.L.: Locomotion and neuromuscular system of Aglantha digitale. Cell Tiss. Res. 188, 317–327 (1978)

    Google Scholar 

  • Venable, H.J., Coggeshall, R.: A simplified lead citrate stain for use in electron microscopy. J. Cell Biol. 25, 407–408 (1965)

    Google Scholar 

  • Willie, C.L., Larsen, W.J.: Particle packing patterns in developing gap junctions of rabbit granulosa cells. Anat. Rec. 187, 749 Abst. (1977)

    Google Scholar 

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Authors and Affiliations

  1. Department of Biology, University of Victoria, Victoria, B.C., Canada

    C. L. Singla

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  1. C. L. Singla
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The author is greatly indebted to Prof. G.O. Mackie for reading the manuscript and financially supporting this research work from his National Research Council of Canada grant

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Singla, C.L. Fine structure of the neuromuscular system of Polyorchis penicillatus (Hydromedusae, Cnidaria). Cell Tissue Res. 193, 163–174 (1978). https://doi.org/10.1007/BF00221609

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  • DOI: https://doi.org/10.1007/BF00221609

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