, Volume 81, Issue 1, pp 125–130 | Cite as

Hypothetical origin of the particular membrane relationships inLabyrinthula

  • Hiltrud Schwab-Stey
  • Dieter Schwab


An hypothesis is presented by which means the origin of the special membrane structures inLabyrinthula may be explained. It is postulated that the evaginations which are produced at the bothrosomes represent ectoplasmic pseudopodia which gradually encircle the cell so that, after selective membrane fusion, the cell is surrounded by its own pseudopodium. The cell maintains continuity with the pseudopodium over the bothrosomes. This hypothesis is supported by several light- and electronmicroscopic investigations.


Membrane Structure Membrane Fusion Special Membrane Electronmicroscopic Investigation Selective Membrane 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.


Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.


  1. Bartsch, G., 1971: Cytologische Beobachtungen anLabyrinthula coenocystis Schmoller bei verschiedenen Kulturbedingungen. Z. allg. Mikrobiol.11, 79–90.PubMedGoogle Scholar
  2. Dangeard, P. A., 1932: Observations sur la famille des Labyrinthulées et sur quelques autres parasites desCladophora. Le Botaniste24, 217–258.Google Scholar
  3. Grell, K. G., 1967:Labyrinthula coenocystis (Protomyxoidea). Film E 1172, Institut für den wiss. Film, Göttingen.Google Scholar
  4. Hausmann, E., W. Stockem undK. E. Wohlfarth-Bottermann, 1972: Pinocytose und Bewegung von Amöben. VII. Mitteilung: Quantitative Untersuchungen zum Membran-Turnover beiHyalodiscus simplex. Z. Zellforsch.127, 270–286.PubMedGoogle Scholar
  5. Hohl, H. R., 1966: The fine structure of the slimeways inLabyrinthula. J. Protozool.13, 41–43.PubMedGoogle Scholar
  6. Hollande, A., etM. Enjumet, 1955: Sur l'évolution et la systématique desLabyrin-thulidae. Ann. Sci. nat., Zool.17, 357–368.Google Scholar
  7. Honigberg, B. M., W. Balamuth, E. C. Bovee, J. Ob. Corliss, M. Gojdics, R. P. Hall, R. R. Kudo, N. D. Levine, A. R. Loeblich, J. Weiser, andD. H. Wenrich, 1964: A revised classification of the phylumProtozoa. J. Protozool.11, 7–20.PubMedGoogle Scholar
  8. Jepps, M. W., 1931: Note on a marineLabyrinthula. J. mar. biol. Ass. U.K.17, 833–838.Google Scholar
  9. Perkins, F. O., 1972: The ultrastructure of holfasts, “rhizoids”, and “slime tracks” in thraustochytriaceous fungi andLabyrinthula spp. Arch. Mikrobiol.84, 95–118.PubMedGoogle Scholar
  10. Perkins, F. O., 1973: Observations of thraustochytriaceous (Phycomycetes) and labyrinthulid (Rhizopodea) ectoplasmic nets on natural and artificial substrates — an electron microscope study. Canad. J. Bot.51, 485–491.Google Scholar
  11. Porter, D., 1969: Ultrastructure ofLabyrinthula. Protoplasma67, 1–19.Google Scholar
  12. —, 1972: Cell division in the marine slime mold,Labyrinthula sp., and the role of bothrosome in extracellular membrane production. Protoplasma74, 427–448.Google Scholar
  13. Schmoller, H., 1960: Kultur und Entwicklung vonLabyrlnthula coenocystis n. sp. Arch. Mikrobiol.36, 365–372.PubMedGoogle Scholar
  14. —, 1966: Beitrag zur Kenntnis der Labyrinthulen-Entwicklung. Arch. Protistenk.109, 226–244.Google Scholar
  15. Schwab-Stey, H., undD. Schwab, 1973: Über die Feinstruktur vonLabyrinthula coenocystis Schmoller nach Gefrierätzung. Protoplasma76, 455–464.Google Scholar
  16. - 1974: Scanning electron microscope investigation on the motile stage ofLabyrinthula coenocystis Schmoller. Cytobiologie (in press).Google Scholar
  17. Stey, H., 1968: Nachweis eines bisher unbekannten Organells beiLabyrinthula. Z. Naturforsch.23 b, 567.Google Scholar
  18. —, 1969: Elektronenmikroskopische Untersuchung anLabyrinthula coenocystis Schmoller. Z. Zellforsch.102, 387–418.PubMedGoogle Scholar
  19. Valkanov, A., 1929: Die Natur und die systematische Stellung der Labyrinthuleen. Arch. Protistenk.67, 110–121.Google Scholar
  20. Zopf, W., 1892: Zur Kenntnis der Labyrinthuleen, einer Familie der Mycetozoen. Beitr. Physiol. Morph. nied. Organ.2, 36–48.Google Scholar

Copyright information

© Springer-Verlag 1974

Authors and Affiliations

  • Hiltrud Schwab-Stey
    • 1
  • Dieter Schwab
    • 1
  1. 1.Fachrichtung Anatomie im Fachbereich Theoretische Medizin der Universität des SaarlandesHomburg (Saar)Germany

Personalised recommendations