Cell and Tissue Research

, Volume 194, Issue 1, pp 71–77 | Cite as

Ultrastructural observations on the oogenesis of Triops cancriformis (Crustacea, Notostraca)

I. Origin and differentiation of nurse cells
  • Massimo Trentini
  • Franca Sabelli Scanabissi
Article

Summary

Each ovarian follicle of Triops cancriformis is four-celled; these cells (one oocyte and three nurse cells) are interconnected by cytoplasmic bridges. In the course of differentiation, the nurse cells are early recognizable; they increase in size more than the oocyte and their nuclei contain many nucleoli. For the first time in Arthropoda, yolk globules are reported to be present in nurse cell cytoplasm; these globules arise from the smooth endoplasmic reticulum. The functional significance of the intercellular bridges and the trophic role of the nurse cells are discussed.

Key words

Oogenesis Intercellular bridges Nurse cell differentiation Notostraca (Triops cancriformis

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References

  1. Anderson, E.: Comparative aspects of the ultrastructure of the female gamete. Int. Rev. Cytol., Suppl. 4, 1–70 (1974)Google Scholar
  2. Anteunis, A., Fautrez-Firlefyn, N., Fautrez, J.: La structure de ponts intercellulaires “obturés” et “ouverts” entre oogonies et oocytes d'Artemia salina. Arch. Biol. (Liège) 77, 645–664 (1966a)Google Scholar
  3. Anteunis, A., Fautrez-Firlefyn, N., Fautrez, J.: L'incorporation de cellules nourricieres par l'oocyte d' Anemia salina. Étude au microscope électronique. Arch. Biol. (Liège) 77, 665–676 (1966b)Google Scholar
  4. Fawcett, D.W.: Intercellular bridges. Exp. Cell Res., Suppl. 8, 174–187 (1961)Google Scholar
  5. Fischer, A.: The structure of symplasmic early oocytes and their enveloping sheath cells in the polychaete, Platynereis dumerilii. Cell Tiss. Res. 160, 327–343 (1975)Google Scholar
  6. Giorgi, F.: Intercellular bridges in ovarian follicle cells of Drosophila melanogaster. Cell Tiss. Res. 186, 413–422 (1978)Google Scholar
  7. Kessel, R.G.: Mechanism of protein yolk synthesis and deposition in Crustacean oocytes. Z. Zellforsch. 89, 17–38 (1968)Google Scholar
  8. Longhurst, A.R.: The reproduction and cytology of the Notostraca (Crustacea, Phyllopoda). Proc. zool. Soc. (Lond.) 125, 671–680 (1955)Google Scholar
  9. Nørrevang, A.: Electron microscopic morphology of oogenesis. Int. Rev. Cytol. 23, 113–186 (1968)Google Scholar
  10. Ruby, J.R., Dyer, R.F., Skalko, R.G.: The occurrence of intercellular bridges during oogenesis in the mouse. J. Morph. 127, 307–340 (1969)Google Scholar
  11. Skalko, R.G., Kerrigan, J.M., Ruby, J.R., Dyer, R.F.: Intercellular bridges between oocytes in the chicken ovary. Z. Zellforsch. 128, 31–41 (1972)Google Scholar
  12. Steinert, G., Urbani, E.: Communications intercellulaires dans les ovarioles de Dytiscus marginalis L. J. Embryol. exp. Morph. 22, 45–54 (1969)Google Scholar
  13. Telfer, W.H.: Development and physiology of the oocyte-nurse cell syncytium. Adv. Insect Physiol. 11, 223–319 (1975)Google Scholar
  14. Trentini, M.: Osservazioni sull'ovogenesi di Triops cancriformis (Phyllopoda, Notostraca). Rend. Acc. Lincei Cl. Sci. Fis. Mat. Nat. LXIII (in press)Google Scholar
  15. Zaffagnini, F., Lucchi, M.L.: Indagini col microscopio elettronico sull'ovogenesi partenogenetica in Daphnia magna (Crustacea, Cladocera) I. Origine comune dell'ovocita e delle sue tre cellule nutrici. Arch. Zool. Ital. 50, 49–58 (1965)Google Scholar

Copyright information

© Springer-Verlag 1978

Authors and Affiliations

  • Massimo Trentini
    • 1
  • Franca Sabelli Scanabissi
    • 1
  1. 1.Institute of Zoology, University of BolognaBolognaItaly
  2. 2.Institute of Zoology, University of BolognaBolognaItaly

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