Fine structure of the male reproductive ducts, vagina and seminal receptacle of Cyathocephalus truncatus (Cestoda: Spathebothriidea) (original) (raw)

Folia Parasitologica 52[3] 241-250 (2005) | DOI: 10.14411/fp.2005.032

1Institute of Biology of Inland Waters, Russian Academy of Sciences, 152742 Borok, Yaroslavl Province, Russia

2Department of Biological Sciences, State University of New York, Albany, NY 12222, USA

3Institute of Parasitology, Academy of Sciences of the Czech Republic, Brani�ovsk� 31, 370 05 �esk� Bud�jovice, Czech Republic

4Parasitological Institute, Slovak Academy of Sciences, Hlinkova 3, 040 01 Ko�ice, Slovakia

5Department of Biology, University of Ferrara, St. Borsari, 46, 44100 Ferrara, Italy

Fine structure of the vas efferens, vas deferens, ejaculatory duct with accessory glands and vagina with seminal receptacle is described in the spathebothriidean tapeworm, Cyathocephalus truncatus (Pallas, 1781) Kessler, 1868. The numerous well-developed prostate glands are characterised by having secretory granules with an electron-dense core surrounded by a matrix of lower electron density. Coalescence of the outer part of the granules with each other takes place in the terminal end of the secretory ducts. The position of prostate glands around the proximal part of the cirrus pouch and terminating in the ejaculatory duct is a characteristic feature of the Spathebothriidea. Up to 20 closely arranged muscle layers make up the muscular cirrus pouch wall with 4 well-developed muscular layers in the ejaculatory duct and cirrus. Both the cirrus and the vagina are covered with the same uniform cone-shaped microtriches. The vagina has an extensive seminal receptacle. All of these structures are well-adapted to insure successful sperm transfer involving ejaculation and storage, probably for both self- and cross-insemination. Cyathocephalus truncatus has a cirrus similar to that of the monozoic, progenetic caryophyllidean, Archigetes sieboldi and well-developed prostate glands like those of the polyzoic pseudophyllidean, Diphyllobothrium latum. The ultrastructural aspects of the male and female reproductive system of C. truncatus are compared with those of other tapeworms.

Keywords: Cyathocephalus truncatus, ultrastructure, male ducts, accessory glands, vagina, seminal receptacle

Received: April 13, 2004; Accepted: September 7, 2004; Published: June 1, 2005 Show citation

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Poddubnaya, L.G., Mackiewicz, J.S., Bru�ansk�, M., & Dezfuli, B.S. (2005). Fine structure of the male reproductive ducts, vagina and seminal receptacle of Cyathocephalus truncatus (Cestoda: Spathebothriidea). Folia Parasitologica,�52(3),�241-250. doi:�10.14411/fp.2005.032

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References

  1. BEVERIDGE I., SMITH K. 1985: An ultrastructural study of the cirrus and vagina of Phyllobothrium vagans (Cestoda: Tetraphyllidea). Z. Parasitenkd. 71: 609-616 Go to original source...
  2. COIL W.H. 1970: Studies on the biology of the tapeworm Dioecocestus acotylus with emphasis on the oogenotop. Z. Parasitenkd. 33: 314-328 Go to original source... Go to PubMed...
  3. DAVYDOV V.G., KORNEVA Zh.V. 2002: Structure of the copulative apparatus of Sobolevicanthus gracilis (Cestoda: Cyclophyllidea). Parazitologiya 36: 224-230. (In Russian.)
  4. DAVYDOV V.G., PODDUBNAYA L.G., KOLESNIKOVA G.A. 1994: Ultrastructure of genital system ducts of Caryophyllaeus laticeps (Cestoda, Caryophyllidea). Parazitologiya 28: 501-509. (In Russian.)
  5. DAVYDOV V.G., PODDUBNAYA L.G., KUPERMAN B.I. 1997: An ultrastructure of some systems of the Diplocotyle olrikii (Cestoda: Cyathocephalata) in relation to peculiarities of its life cycle. Parazitologiya 31: 132-141. (In Russian.)
  6. FUHRMANN O. 1931: Dritte Klasse des Cladus Plathelminthes: Cestoidea. In W. Kuekenthal and T. Krumbach (Eds.), Handbuch der Zoologie. Walter de Gruyter and Co., Berlin, pp. 141-416
  7. GIBSON D.I. 1994: Order Spathebothriidea Wardle & McLeod, 1952. In: L.F. Khalil, A. Jones and R.A. Bray (Eds.), Keys to the Cestode Parasites of Vertebrates. CAB International, Wallingford, Oxon, pp. 15-19
  8. HALTON D.W., HARDCASTLE A. 1977: Ultrastructure of the male accessory ducts and prostate gland of Diclidophora merlangi (Monogenoidea). Int. J. Parasitol. 7: 393- 401 Go to original source...
  9. HOBERG E.P., MARIAUX J., BROOKS D.R. 2001: Phylogeny among orders of the Eucestoda (Cercomeromorphae): integrating morphology, molecules and total evidence. In: D.T.J. Littlewood and R.A. Bray (Eds.), Interrelationships of the Platyhelminthes. Taylor & Francis, London, pp. 112-126
  10. JONES M.K. 1989: Ultrastructure of the cirrus pouch of Cylindrotaenia hickmani (Jones, 1985) (Cestoda, Nematotaeniidae). Int. J. Parasitol. 19: 919-930 Go to original source... Go to PubMed...
  11. JONES M.K. 1994: Ultrastructure of the male accessory glands and sperm ducts of Cylindrotaenia hickmani (Cestoda: Cyclophyllidea). Acta Zool. 75: 269-275 Go to original source...
  12. JOYEUX C.H., BAER J.G. 1961: Classe des Cestodes. In: P.-P. Grasse (Ed.), Traite de Zoologie. Tome 4, Fasc. 1. Masson, Paris, pp. 345-560
  13. KEARN G.C. 1998: Parasitism and the Platyhelminths. Chapman & Hall, London, 221 pp Go to original source... Go to PubMed...
  14. KODEDOVA I., DOLEZEL D., BROUCKOVA M., JIRKU M., HYPSA V., LUKES J., SCHOLZ T. 2000: On the phylogenetic positions of the Caryophyllidea, Pseudophyllidea and Proteocephalidea (Eucestoda) inferred from 18S rRNA. Int. J. Parasitol. 30: 1109-1113. Go to original source... Go to PubMed...
  15. KORNEVA Zh.V. 2002: Ultrastructural organization of reproductive system in Triaenophorus nodulosus (Cestoda, Pseudophyllidea). Zool. Zh. 81: 1432-1438. (In Russian.)
  16. KORNEVA Zh.V., DAVYDOV V.G. 2001: Ultrastructure of male reproductive system in three proteocephalidean cestodes. Zool. Zh. 80: 921-928. (In Russian.)
  17. LUMSDEN R.D., SPECIAN R. 1980: The morphology, histology and fine structure of the adult stage of the cyclophyllidean tapeworm Hymenolepis diminuta. In: M.P. Arrai (Ed.), Biology of the Tapeworm Hymenolepis diminuta L. Academic Press, New York, pp. 157-280 Go to original source...
  18. MACKIEWICZ J.S. 1972: Caryophyllidea (Cestoidea): a review. Exp. Parasitol. 31: 417-512 Go to original source... Go to PubMed...
  19. MACKIEWICZ J.S. 2003: Caryophyllidea (Cestoidea): molecules, morphology and evolution. Acta Parasitol. 48: 143- 154
  20. MacKINNON B.M., BURT M.D.P. 1984: The comparative ultrastructure of spermatozoa from Bothrimonus sturionis Duv., 1842 (Pseudophyllidea), Pseudanthobothrium hanseni Baer, 1956 (Tetraphyllidea), and Monoecocestus americanus Stiles, 1895 (Cyclophyllidea). Can. J. Zool. 62: 1059-1066 Go to original source...
  21. MARIAUX J. 1998: A molecular phylogeny of the Eucestoda. J. Parasitol. 84: 114-124 Go to original source... Go to PubMed...
  22. MARIAUX J., OLSON P.D. 2001: Cestode systematics in the molecular era. In: D.T.J. Littlewood and R.A. Bray (Eds.), Interrelationships of the Platyhelminthes, Taylor & Francis, London, pp. 127-134
  23. NYBELIN O. 1922: Anatomisch-systematische Studien ueber Pseudophyllideen. Goeteborgs Kungl. Vetenkaps-och. Viterhets-Samhalles Handlingar, Fjaerde Foeljden, 26, 228 pp
  24. OKAKA C.E. 2000: Maturity of the procercoid of Cyathocephalus truncatus (Eucestoda: Spathebothriidea in Gammarus pulex (Crustacea: Amphipoda) and tapeworm life cycle using the amphipod as the sole host. Helminthologia 37: 153-157
  25. OLSON P.D., CAIRA J.N. 1999: Evolution of the major lineages of tapeworms (Platyhelminthes: Cestoidea) inferred from 18S ribosomal DNA and elongation factor-1α. J. Parasitol. 85: 1134-1159 Go to original source... Go to PubMed...
  26. OLSON P.D., LITTLEWOOD D.T.J., BRAY R.A., MARIAUX J. 2001: Interrelationships and evolution of the tapeworms (Platyhelminthes: Cestoda). Mol. Phylog. Evol. 19: 443-467 Go to original source... Go to PubMed...
  27. PODDUBNAYA L.G. 2002: Ultrastructure of reproductive ducts in Diphyllobothrium latum (Cestoda, Pseudophyllidea) males. Zool. Zh. 81: 394-405. (In Russian.)
  28. PODDUBNAYA L.G. 2003a: Structure of reproductive system of the amphicotylide cestode Eubothrium rugosum (Cestoda, Pseudophyllidea). J. Evol. Biochem. Physiol. 39: 345-355 Go to original source...
  29. PODDUBNAYA L.G. 2003b: Ultrastructure of reproductive organs and ducts in the progenetic species Archigetes sieboldi (Cestoda, Caryophyllidea). Zool. Zh. 82: 1038- 1050. (In Russian.)
  30. PODDUBNAYA L.G., MACKIEWICZ J.S., KUPERMAN B.I. 2003: Ultrastructure of Archigetes sieboldi (Cestoda: Caryophyllidea): relationship between progenesis, development and evolution. Folia Parasitol. 50: 275-292 Go to original source... Go to PubMed...
  31. PROTASOVA E.N., KUPERMAN B.I., ROITMAN V.A., PODDUBNAYA L.G. 1990: [Caryophyllideans of the fauna of the USSR.] Izd. Nauka, Moskva, 238 pp. (In Russian.)
  32. PROTASOVA E.N., ROYTMAN V.A. 1995: [Cyathocephalates, tapeworm helminthes of marine and freshwater fish (Cestoda: Pseudophyllidea: Cyathocephalata).] [Essentials of Cestodology. Vol. 12.] Institute of Parasitology RAN, Moskva, 134 pp. (In Russian.)
  33. WARDLE R.A., McLEOD J.A. 1952: The Zoology of Tapeworms. The University of Minnesota Press, Minneapolis, 780 pp