Hostname: page-component-cd9895bd7-gvvz8 Total loading time: 0 Render date: 2024-12-22T18:04:32.727Z Has data issue: false hasContentIssue false
  • English
  • Français

The Langerhans receptor of Oikopleura (Tunicata: Larvacea)

Published online by Cambridge University Press:  11 May 2009

Q. Bone  and
K. P. Ryan
Q. Bone
Affiliation:
The Laboratory, Marine Biological Association, Citadel Hill, Plymouth
K. P. Ryan
Affiliation:
The Laboratory, Marine Biological Association, Citadel Hill, Plymouth
Get access Rights & Permissions [Opens in a new window]

Extract

The bristle-bearing receptors on either side of the trunk in Oikopleura are connected to the caudal ganglion by the axons of central cells which form electrical synapses (gap junctions) at the bases of the receptor cells. The same axons also form similar synapses with epithelial cells adjacent to the receptors. Direct mechanical stimulation of the receptor processes evokes changes in the locomotor rhythm of the same kind as evoked by action potentials propagated in the epithelial cells. This remarkable arrangement is suggested to be a consequence of the reduced numbers of cells in larvaceans.

Type
Research Article
Information
Journal of the Marine Biological Association of the United Kingdom , Volume 59 , Issue 1 , February 1979 , pp. 69 - 75
Copyright
Copyright © Marine Biological Association of the United Kingdom 1979

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

Bone, Q. & Mackie, G. O., 1975. Skin impulses and locomotion in Oikopleura (Tunicata: Larvacea). Biological Bulletin. Marine Biological Laboratory, Woods Hole, Mass., 149, 267–286.CrossRefGoogle ScholarPubMed
Bone, Q. & Ryan, K. P., 1978. Cupular sense organs in Ciona (Tunicata: Ascidiacea). Journal of Zoology, 186, 417–429.CrossRefGoogle Scholar
Bone, Q., Gorski, G. & Pulsford, A., 1979. On the structure and behaviour of Fritillaria (Tunicata: Larvacea), Journal of the Marine Biological Association of the United Kingdom, 59. (In the Press.) natha. Journal of the Marine Biological Association of the United Kingdom, 58, 565–570.Google Scholar
Budelmann, B. V., 1977. Structure and function of the angular acceleration receptor systems in the statocysts of cephalopods. Symposia of the Zoological Society of London, no. 38, 309–324.Google Scholar
Caspar, D. L. D., Goodenough, D. A., Makowski, L. & Phillips, W. C, 1977. Gap junction structures. I. Correlated electron microscopy and X-ray diffraction. Journal of Cell Biology, 74, 605–628.CrossRefGoogle ScholarPubMed
Garstang, W., 1928. The morphology of the Tunicata and its bearing on the phylogeny of the Chordata. Quarterly Journal of Microscopical Science, 78, 51–187.Google Scholar
Langerhans, P., 1877. Zur Anatomie der Appendicularien. Monatsberichte der Koniglischen Preussichen Akademie Wissenschaften zu Berlin, 1877, 561–556.Google Scholar
Mackie, G. O. & Bone, Q., 1977. Locomotion and propagated skin impulses in salps (Tunicata:Thaliacea). Biological Bulletin. Marine Biological Laboratory, Woods Hole, Mass., 153, 180–197.CrossRefGoogle ScholarPubMed
Ryan, K. P., 1978. Block preparation for ultramicrotomy enabling photography and location of small features. (In preparation.)Google Scholar
Seeliger, O., 1893. Appendicularien, Copelata. In Bronn's Klassen und Ordnungen des Tierreichs, ed. 3, supplement abt. 1, pp. 84–154.Google Scholar