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Some aspects of the fine structure of the statocysts of the molluscsPecten andPterotrachea

Summary

The statocyst ofPecten is composed of hair cells and supporting cells. The hair cells bear kinocilia and microvilli at their distal ends and the supporting cells bear microvilli. The cilia have a 9+2 internal filament content, and arise from basal bodies that have roots, basal feet and microtubular connections. Two different ciliary arrangements are described, one with a small number of cilia arranged in a ring, and another with many more cilia arranged in rows. Below the hair cells are probable synapses. A ciliated duct connects to the lumen of the static sac and passes through the centre of the static nerve. The hair cells in the statocyst ofPterotrachea bear kinocilia and microvilli. The possible importance of cilia and microvilli in the transduction process is discussed.

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References

  1. Baecker, R.: Die Mikromorphologie vonHelix pomatia und einigen anderen Stylommatophoren. Ergebn. Anat. Entwickl.-Gesch.29, 449–585 (1932).

  2. Bannister, L. H.: The fine structure of the olfactory surface of teleostean fishes. Quart. J. micr. Sci.106, 333–342 (1965).

  3. —: Fine structure of the sensory endings in the vomeronasal organ of the slow-wormAnguis fragilis. Nature (Lond.)217, 275–276 (1968).

  4. Barber, V. C.: Preliminary observations on the fine structure of theOctopus statocyst. J. Microsc.4, 547–550 (1965).

  5. —: The fine structure of the statocyst ofOctopus vulgaris. Z. Zellforsch.70, 91–107 (1966a).

  6. —: The morphological polarization of kinocilia in theOctopus statocyst. J. Anat. (Lond.)100, 685–686 (1966b).

  7. —: The structure of mollusc statocysts, with particular reference to cephalopods. Symp. Zool. Soc. Lond.23, 37–62 (1968).

  8. —, andA. Boyde: Scanning electron microscopical studies of cilia. Z. Zellforsch.84, 269–284 (1968).

  9. —, andM. F. Land: The fine structure of the eye of the molluscPecten maximus. Z. Zellforsch.76, 295–312 (1967).

  10. —, andP. Graziadei: Cephalopod synaptic organisation. 6th Int. Congr. Electron Microscopy (Kyoto), vol.2, p. 433–434. Tokyo: Maruzen Co. Ltd. 1966.

  11. Boyde, A., andV. C. Barber: Freeze-drying methods for the scanning electron microscopical study of the protozoan,Spirostomum ambiguum, and the statocyst of the cephalopod mollusc,Loligo vulgaris. J. Cell Sci.4, in press (1969).

  12. Buddenbrock, W. v.: Die Statocysten vonPecten, ihre Histologie und Physiologie. Zool. Jb., Abt. allg. Zool. u. Physiol.35, 301–356 (1915).

  13. Bullock, T. H., andG. A. Horridge: Structure and function in the nervous system of invertebrates. 2 vols. San Francisco and London: W. H. Freeman & Co. 1965.

  14. Charles, G. H.: Sense organs (less cephalopods), chap. 13, p. 455–521, in: Physiology of mollusca, vol. II (ed. byK. M. Wilbur andC.M. Yonge). London: Academic Press 1966.

  15. Duvall, A. J., Å. Flock, andJ. Wersäll: The ultrastructure of the sensory hairs and associated organelles of the cochlear inner hair cells, with reference to directional sensitivity. J. Cell Biol.29, 497–505 (1966).

  16. Flock, å.: Structure of the macula utriculi with special reference to directional interplay of sensory responses as revealed by morphological polarization. J. Cell Biol.22, 413–431 (1964).

  17. —: Transducing mechanisms in the lateral line canal organ receptor. Cold Spr. Harb. Symp. quant. Biol.30, 133–145 (1965).

  18. —, andA. J. Duvall: The ultrastructure of the kinocilium of the sensory cells in the inner ear and lateral line organs. J. Cell Biol.25, 1–8 (1965).

  19. Gray, E. G.: The fine structure of the insect ear. Phil. Trans. B243, 75–94 (1960).

  20. —, andJ. Z. Young: Electron microscopy of synaptic structure ofOctopus brain. J. Cell Biol.21, 87–103 (1964).

  21. Gray, J. A. B.: Initiation of impulses at receptors, p. 123–145, in: Handbook of physiology, sect. I, Neurophysiology, vol. 1 (ed. byJ. Field). Baltimore: Amer. Physiol. Soc. Waverley Press 1959.

  22. Horridge, G. A.: Relations between nerves and cilia in ctenophores. Amer. Zoologist5, 357–375 (1965).

  23. Iurato, S.: Efferent fibres to the sensory cells of Corti's organ. Exp. Cell. Res.27, 162–164 (1962).

  24. Kolmer, W.: Statoreceptoren. Bau der statischen Organe, Bd. 11, S. 767–790, in: Handbuch der normalen und pathologischen Physiologie (ed. byA. Bethe, G. v. Bergmann, G. Embden, andA. Ellinger). Receptionsorgane. I. Berlin: Springer 1926.

  25. Laverack, M.: On superficial receptors. Symp. Zool. Soc. Lond.23, 299–326 (1968).

  26. Lowenstein, O., andM. P. Osborne: Ultrastructure of the sensory hair cells in the labyrinth of the ammocoete larva of the lamprey,Lampetra fluviatilis. Nature (Lond.)204, 197–198 (1964).

  27. — —, andJ. Wersäll: Structure and innervation of the sensory epithelia of the labyrinth in the thornback ray (Raja clavata). Proc. roy. Soc. B160, 1–12 (1964).

  28. —, andJ. Wersäll: Functional interpretation of the electron microscopic structure of the sensory hairs in the cristae of the elasmobranchRaja clavata in terms of directional sensitivity. Nature (Lond.)184, 1807–1808 (1959).

  29. Merker, G., u.M. V. v. Harnack: Zur Feinstruktur des „Gehirns“ und der Sinnesorgane vonProtodrilus rubropharyngaeus Jaegersten (Archiannelida). Mit besonderer Berücksichtigung der neurosekretorischen Zellen. Z. Zellforsch.81, 221–239 (1967).

  30. Millonig, G.: Advantages of a phosphate buffer for OsO4 solutions in fixation. J. appl. Phys.32, 1637 (1961).

  31. Pfeil, E.: Die Statocyste vonHelix pomatia. L. Z. wiss. Zool.119, 79–113 (1922).

  32. Quattrini, D.: Osservazioni preliminari sulla ultrastruttura della statocisti dei molluschi gasteropodi polmonati. Boll. Soc. ital. Biol. sper.43, 785–786 (1967).

  33. Reynolds, F. S.: The use of lead citrate at high pH as an electron opaque stain in electron microscopy. J. Cell Biol.17, 208–212 (1963).

  34. Smith, C. A., andG. L. Rasmussen: Degeneration in the efferent nerve endings in the cochlea after axonal section. J. Cell Biol.26, 63–77 (1965).

  35. Spoendlin, H. H., andR. R. Gacek: Electron microscope study of the efferent and afferent innervation of the organ of Corti in the cat. Ann. Otol. (St. Louis)72, 660–687 (1963).

  36. Tschachotin, S.: Die Statocyste der Heteropoden. Z. wiss. Zool.90, 343–422 (1908).

  37. Tucker, D.: Olfactory cilia are not required for receptor function. Fed. Proc.26, 544, Abstract 1609 (1967).

  38. Wersäll, J., Å. Flock, andP.-G. Lundquist: Structural basis for directional sensitivity in cochlear and vestibular sensory receptors. Cold Spr. Harb. Symp. quant. Biol.30, 133–145 (1965).

  39. Whitear, M.: Presumed sensory cells in fish epidermis. Nature (Lond.)208, 703–704 (1965).

  40. Wolff, H. G.: Elektrische Antworten der Statonerven der Schnecken (Arion empiricorum undHelix pomatia) auf Drehreizung. Experientia (Basel)24, 848–849 (1968).

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Additional information

We would like to thank ProfessorJ. Z. Young for bringing specimens ofPterotrachea from Naples and also the staff of the Stazione Zoologica for the provision of specimens, Dr.M. Land for providing specimens ofPecten, the Science Research Council (U.K.) for providing the electron microscope used in much of the study and also for a grant to one of us (V.C.B.), and Mrs.J. Parkers and Mr.R. Moss and Mrs.J. Hamilton for much photographic and technical assistance.

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Barber, V.C., Dilly, P.N. Some aspects of the fine structure of the statocysts of the molluscsPecten andPterotrachea . Z.Zellforsch 94, 462–478 (1969). https://doi.org/10.1007/BF00936053

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Keywords

  • Fine Structure
  • Hair Cell
  • Basal Body
  • Supporting Cell
  • Filament Content