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Ultrastructural investigation of spermatogenesis in the nemerine wormProcephalothrix sp. (Palaeonemertini, Anopla)

Helgoländer Meeresuntersuchungen volume 51, pages 125–135 (1997)Cite this article

Abstract

Spermatogenesis and sperm structure of the nemertine wormProcephalothrix sp. were studied by transmission electron microscopy. It is shown that a flagellum and proacrosomal vesicles are common in spermatogonia and spermatocytes as in spermatogenesis of a number of marine invertebrates with external fertilization. Originally, the animals were collected asProcephalothrix spiralis but they were found to have a type of spermatozoon different from that ofP. spiralis as described by Turbeville & Ruppert (1985). The re-identification of the material collected in the Japan Sea has shown that the features are characteristic, ofP. spiralis (Coe, 1930). This finding suggests thatP. spiralis shows variations in different parts of the world.

Literature cited

  • Adrianov, A. V., Reunov, A. A. & Malakhov V. V., 1991. Fine morphology of the gonads and spermatogenesis features of White Sea priapulidsHalicryptus spinulosus (Cephalorhyncha, Priapulida).—Zool. Zh.71, 31–39.

    Google Scholar 

  • Afzelius, B., 1971. The spermatozoon of the nemertineMalacobdella grossa—J. submicrosc. Cytol.3, 181–192.

    Google Scholar 

  • Atwood, D. G., 1974. Fine structure of spermatogonia, spermatocytes and spermatids of the sea cucumberCucumaria lubrica andLeptocynapta clarki (Echinodermata, Holothuroidea).—Can. J. Zool.52, 1389–1396.

    PubMed  CAS  Google Scholar 

  • Dewel, W. C. & Clark, W. H., 1972. An ultrastructural investigation of spermiogenesis and the mature sperm in the anthozoanBunodosoma cavernata (Cnidaria).—J. Ultrastruct. Res.40, 417–431.

    Article  PubMed  CAS  Google Scholar 

  • Eckelbarger, K. J., 1984. Ultrastructure of spermatogenesis in the reef-building polychaetePhragmatopoma lapidosa (Sabellariidae) with special reference to acrosome morphogenesis.—J. Ultrastruct. Res.89, 146–164.

    Article  Google Scholar 

  • Ferraguti, M., 1984. Slanted centriole and transient anchoring apparatus during spermiogenesis of an oligochaete (Annelida).—Biol. Cell.52, 175–180.

    PubMed  CAS  Google Scholar 

  • Franzén, Å., 1983. Nemertina. In: Reproductive biology of invertebrates. Ed. by K. G. Adiyodi & R. G. Adiyodi, Wiley, Chichester,2, 159–170.

    Google Scholar 

  • Franzén, Å. & Sensenbaugh, T., 1988. The spermatozoon ofGononemertes parasita (Nemertea, Hoplonemertea) with a note on sperm evolution in the nemerteans.—Invert. Reprod. Dev.14, 25–36.

    Google Scholar 

  • Gardiner, S. L. & Rieger, R. M., 1980. Rudimentary cilia in muscle cells of annelids and echinoderms. —Cell Tissue Res.213, 247–252.

    Article  PubMed  CAS  Google Scholar 

  • Gerner, L., 1969. Nemertinen der GattungenCephalothrix undOtotyphlonemertes aus dem marinen Mesopsammal.—Helgoländer Meeresunters.19, 68–110.

    Article  Google Scholar 

  • Hodgson, A. N. & Reunov, A. A., 1994. Ultrastructure of the spermatozoon and spermatogenesis of the brachiopodsDiscinisca tenuis (Inarticulata) andKraussina rubra (Articulata).—Invert. Reprod. Dev.25, 23–31.

    Google Scholar 

  • Hodgson, A. N., Baxter, J. M., Sturrock, M. G. & Bernard, R. T. F., 1988. Comparative spermatology of 11 species of Polyplacophora (Mollusca) from the suborders Lepidopleurina, Chitonina and Acanthochitonina.—Proc. R. Soc. Lond.235, 161–177.

    Google Scholar 

  • Jespersen, A., 1994. Spermiogenesis, sperm structure and fertilization in the palaeonemerteanCephalothrix rufifrons (Nemertini, Anopla).—Zoomorphology.114, 119–124.

    Article  Google Scholar 

  • Kato, K. H. & Ishikawa, M., 1982. Flagellum formation and centriolar behavior during spermatogenesis of the sea urchin,Hemicentrotus pulcherrimus—Acta Embryol. Morph. exp.3, 49–66.

    CAS  Google Scholar 

  • Klepal, W., 1993. Spermatogenesis and spermatozoa ofAspidosiphon muelleri (Sipunculida). An ultrastructural study.—J. submicrosc. Cytol Pathol.25, 203–212.

    Google Scholar 

  • Larkman, A. U., 1984. An ultrastructural study of the establishment of the testicular cysts during spermatogenesis in the sea anemoneActinia fragacea (Cnidaria, Anthozoa).—Gamete Res.9, 303–327.

    Article  Google Scholar 

  • Longo, F. J. & Anderson, E., 1969. Sperm differentiation in the sea urchinArbacia punctata andStrongylocentrotus purpuratus.—J. Ultrastruct. Res.27, 486–509.

    Article  PubMed  CAS  Google Scholar 

  • Longo, F. J., Clark, W. H. & Hinsch, G. W., 1988. Gamete interactions and sperm incorporation in the nemerteanCerebratulus lacteus—Zool. Sci.5, 573–584.

    Google Scholar 

  • Paulus, W., 1989. Ultrastructural investigation of spermatogenesis inSpongilla lacustris andEphydatia fluviatilis (Porifera, Spongillidae).—Zoomorphology.109, 123–130.

    Article  Google Scholar 

  • Reunov, A. A. & Chernyshev, A. V., 1992. The male gonad organization and spermatogenesis in the nemertean wormTetrastemma nigrifrons Coe, 1904 (Haplonemertini, Tetrastemmatidae).—Tsitologiya34, 13–20.

    Google Scholar 

  • Reunov, A. A. & Hodgson, A. N., 1994. The ultrastructure of the spermatozoa of five species of South African bivalve (Mollusca), and an examination of early spermatogenesis.—J. Morph.219, 275–283.

    Article  Google Scholar 

  • Reunov, A. A. & Rice, M. E., 1993. An ultrastructural investigation of spermatogenesis inPhascolion cryptum (Sipuncula).—Trans. Amer. microsc. Soc.112, 195–207.

    Article  Google Scholar 

  • Reunov, A. A., Bodrova, O. V. & Eliseikina, M. G., 1994. Structure of the testis and changes shown during the annual reproductive cycle inCucumaria japonica (Echinodermata: Holothuroidea).— Invert. Reprod. Dev.25, 83–86.

    Google Scholar 

  • Schmidt, H. & Holtken, B., 1980. Peculiarities of spermatogenesis and sperm in Anthozoa. In: Developmental and cellular biology of Coelenterates. Ed. by P. Tardant & R. Tardant. Elsevier, Amsterdam, 53–59.

    Google Scholar 

  • Stricker, S. A. & Cavey, M. J., 1986. An ultrastructural study of spermatogenesis and the morphology of the testis in the nemertean wormTetrastemma phyllospadicola (Nemertea, Hoplonemertea).— Can. J. Zool.64, 2187–2202.

    Article  Google Scholar 

  • Sorokin, S., 1962. Centrioles and the formation of rudimentary cilia by fibroblasts and smooth muscle cells.—J. Cell Biol.15, 363–377.

    Article  PubMed  CAS  Google Scholar 

  • Turbeville, J. M. & Ruppert, E. E., 1985. Comparative ultrastructure and the evolution of nemertines.— Am. Zool.31, 53–71.

    Google Scholar 

  • Yamashita, M., 1983. A fine structural study of spermatogenesis in the brittle-starOphiura sarsii (Echinodermata; Ophiuroidea) with a demonstration of the precocious formation of the acrosome —J. Fac. Sci. Hokkaido Univ. (Ser. 6)23, 254–265.

    Google Scholar 

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Authors and Affiliations

  1. Institute of Marine Biology, Far Eastern Branch of the Russian Academy of Sciences, 17 Palchevsky st., 690041, Vladivostok, Russia

    A. A. Reunov

  2. Institute for Zoology, University of Vienna, Biozentrum, 14 Althanstrasse, A-1090, Vienna, Austria

    W. Klepal

Authors
  1. A. A. Reunov
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  2. W. Klepal
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Reunov, A.A., Klepal, W. Ultrastructural investigation of spermatogenesis in the nemerine wormProcephalothrix sp. (Palaeonemertini, Anopla). Helgoländer Meeresunters. 51, 125–135 (1997). https://doi.org/10.1007/BF02908703

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Helgoland Marine Research

ISSN: 1438-3888

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