Hostname: page-component-76fb5796d-5g6vh Total loading time: 0 Render date: 2024-04-29T02:39:01.493Z Has data issue: false hasContentIssue false
  • English
  • Français

Preliminary Observations on the Chemistry and Biology of the Lorica in a Collared Flagellate (Stephanoeca Diplocostata Ellis)

Published online by Cambridge University Press:  11 May 2009

B. S. C. Leadbeater  and
I. Manton
B. S. C. Leadbeater
Affiliation:
Department of Botany, University of Birmingham
I. Manton
Affiliation:
The University, Leeds
Get access Rights & Permissions [Opens in a new window]

Extract

Evidence for the presence of silica in the costae of Stephanoeca diplocostata Ellis has been provided by a combination of light and electron microscopy. The solubility of costae in hydrofluoric acid has been demonstrated. The presence of silicon in the costae has been strongly confirmed by means of the X-ray analytical electron microscope (EMMA) but tests for a crystalline substructure by means of electron diffraction were negative; it is concluded that silicon is present in a crystallographically amorphous form. Preliminary observations on other biological aspects of the organism include the presence of a sac-like membrane between the lorica and protoplast, the presence of immature costal strips within the cytoplasm and the nature of ingested food. The phyletic position of the group is briefly discussed with special reference to mitochondrial substructure.

Type
Research Article
Information
Journal of the Marine Biological Association of the United Kingdom , Volume 54 , Issue 2 , May 1974 , pp. 269 - 276
Copyright
Copyright © Marine Biological Association of the United Kingdom 1974

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

Bourrelly, P., 1968. Les Algues d'eau douce. Tome II. Les digues jaunes et brunes, 438 pp. Paris: N. Boubée.Google Scholar
Chandler, J. A., 1971. Analytical electron microscope. American Laboratory, 3 (4), 50–60.Google Scholar
Christensen, T., 1962. Alger. In: Botanik, 2, Systematisk Botanik, Vol. 2 (eds. Böcher, T. W., Lange, M. and Sørensen, T.), 178 pp. (2nd ed. 1966, 180 pp.). Copenhagen, Munksgaard.Google Scholar
Cooke, C. J. & Openshaw, I. K., 1970. Combined high resolution electron microscopy and X-ray microanalysis. In Proceedings of the 28th Annual Meeting EMSA, Houston (ed.Arceneaux, C. J.), 552 pp. Baton Rouge, Louisiana, U.S.A.: Claitors.Google Scholar
Ellis, W. N., 1929. Recent researches on the Choanoflagellata (Craspedomonadines) (Freshwater and Marine) with description of new genera and species. Annales de la Societé r. zoologigue de Belgique, 60, 49–88.Google Scholar
Kent, W. S., 1880–2. A Manual of the Infusoria, 1–3, 472 pp. London: D. Bogue.Google Scholar
Leadbeater, B. S. C., 1972 a. Fine structural observations on some marine Choanoflagellates from the coast of Norway. Journal of the Marine Biological Association of the United Kingdom, 52, 67–79.Google Scholar
Leadbeater, B. S. C., 1972 b. Ultrastructural observations on some marine Choanoflagellates from the coast of Denmark. British Phycological Journal, 7, 195–211.CrossRefGoogle Scholar
Manton, I. & Leadbeater, B. S. C., 1973. Fine structural observations on six species of Chrysochromulina from wild Danish nanoplankton including a description of C. campanulifera sp.nov. and a preliminary summary of the nanoplankton as a whole. Det Kongelige Danske Videnskabernes Selskab Biologiske Skrifter, 20, 1–26.Google Scholar
Manton, I., Oates, K. & Gooday, G. W., 1972. Further observations on the chemical composition of thecae of Platymonas tetrathele (Prasinophyceae) by means of the X-ray analytical microscope (EMMA). Journal of Experimental Botany, 24 (78), 223–9.Google Scholar
Meunier, A., 1910. Microplancton des mers de Barentz et de Kara. Due d'Orléans Campagne Arctique de 1907, 355 pp. Bruxelles: Charles Bulens.Google Scholar
Saedeleer, H. De, 1929. Notes de Protistologie. I. Craspédomonadines; morphologie et physiologie. Recueil de l'institut zoologique, Torley-Rousseau, 2, 241–87.Google Scholar
Schiller, J., 1925. Die planktonischen Vegetationen des adriatischen Meeres. Archiv für Protistenkunde, 53, 59–123.Google Scholar
Weavers, B. A., 1971. Combined high resolution electron microscopy and electron probe X-ray microanalysis and its applications to medicine and biology. Micron, 2, 390–404.Google Scholar