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Cytomorphological peculiarities of Polypodium hydriforme (Cnidaria)

Published online by Cambridge University Press:  16 October 2008

E.V. Raikova
E.V. Raikova*
Affiliation:
Institute of Cytology of the Russian Academy of Sciences, Tikhoretsky Prospect 4, 194064 St Petersburg, Russia
*
Correspondence should be addressed to: E.V. Raikova, Institute of Cytology of the Russian Academy of Sciences, Tikhoretsky Prospect 4, 194064 St Petersburg, Russia email: Ekaterina.Raikova@gmail.com
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Abstract

Cytomorphological characters of Polypodium hydriforme—a unique cnidarian, adapted to intracellular parasitism inside oocytes of Acipenseriform fish—are reviewed and analysed. Polypodium's unique characters, those shared with the Myxozoa, and the characters shared with bilateral triploblastic animals are listed. The set of unique features has allowed us to allocate Polypodium to a separate cnidarian class Polypodiozoa Raikova, 1988. The combination of characters displayed by P. hydriforme suggests that this animal is not an aberrant cnidarian, as it was formerly believed, but a relic of a major cnidarian group (class Polypodiozoa) that has undergone reduction due to adaptation to parasitism.

Keywords

cytomorphological peculiaritiesPolypodium hydriformeCnidaria
Type
Research Article
Information
Journal of the Marine Biological Association of the United Kingdom , Volume 88 , Special Issue 8: Hydrozoans , December 2008 , pp. 1695 - 1702
Copyright
Copyright © Marine Biological Association of the United Kingdom 2008

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References

REFERENCES

Beklemishev, V.N. (1964) Principles of comparative anatomy of invertebrates. Chicago: University of Chicago Press.Google Scholar
Boero, F., Gravili, C., Pagliara, P., Piraino, S., Bouillon, J. and Schmid, V. (1998) The cnidarian premises of metazoan evolution: from triploblasty, to coelom formation, to metamery. Italian Journal of Zoology (Modena) 65, 5–9.CrossRefGoogle Scholar
Bouillon, J. and Boero, F. (2000) The Hydrozoa: a new classification in the light of old knowledge. Thalassia Salientina, Università degli Studi di Lecce, Dipartimento di Biologia, Porto Cesario (Lecce) 24, 3–296.Google Scholar
Bouillon, J., Medel, M.D., Pagès, F., Gili, J.M., Boero, F. and Gravili, C. (2004) Fauna of the Mediterranean Hydrozoa. Scientia Marina 68 (Supplement 2), 1–454.CrossRefGoogle Scholar
Collins, A.G. (2002) Phylogeny of Medusozoa and the evolution of cnidarian life cycles. Journal of Evolutionary Biology 15, 418–432.CrossRefGoogle Scholar
Evans, N.M., Lindner, A., Raikova, E.V., Collins, A.G. and Cartwright, P. (2008) Phylogenetic placement of the enigmatic parasite, Polypodium hydriforme, within the Phylum Cnidaria. BMC Evolutionary Biology 8: 139 online first doi:10.1186/1471-2148-8-139.CrossRefGoogle ScholarPubMed
Grőger, H. and Schmid, V. (2001) Larval development in Cnidaria: a connection to bilateria? Genesis 29, 110–114..CrossRefGoogle ScholarPubMed
Ibragimov, A.Yu. and Raikova, E.V. (2004) Nematocysts of Polypodium hydriforme, a cnidarian parasite of Acipenseriform fishes. Hydrobiologia 530/531, 165–171.Google Scholar
Jimenez-Guri, E., Philipp, H., Okamura, B. and Holland, P.W.H. (2007) Buddenbrockia is a Cnidarian worm. Science 137, 116–118.CrossRefGoogle Scholar
Lipin, A.N. (1911) Die Morphologie und Biologie von Polypodium hydriforme Uss. Zoologische Jahrbücher, Anatomie 31, 317–426.Google Scholar
Lipin, A.N. (1925) Geschlechtliche Form, Phylogenie und systematische Stellung von Polypodium hydriforme Uss. Zoologische Jahrbücher, Anatomie 47, 541–635.Google Scholar
Martindale, M.W. (2005) The evolution of metazoan axial properties. Nature Reviews, Genetics 6, 917–927.CrossRefGoogle ScholarPubMed
Napara, T.O. and Raikova, E.V. (2003) Amebocytes in mesoglea of Polypodium hydriforme. Tsitologia 45, 1094–1099.Google Scholar
Okamura, B., Curry, A., Wood, T.S. and Canning, E.U. (2002) Ultrastructure of Buddenbrockia sp. identifies it as a myxozoan and verifies the bilaterian origin of the Myxozoa. Parasitology 124, 215–223.CrossRefGoogle Scholar
Piraino, S., Schmich, J., Schmid, V. and Boero, F. (2003) Further evidence of bilaterality in planula larvae. In Proceedings of the International Workshop on Hydra and evolution of signaling pathways. Evangelische Akademie, Tutzing, Germany, 15–18 September 2003, p. 88.Google Scholar
Raikova, E.V. (1961) Development of male gonads and spermatogenesis in Polypodium hydriforme. Tsitologia 3, 528–544.Google Scholar
Raikova, E.V. (1963) Cytomorphological investigation of female gonads of a coelenteron Polypodium hydriforme. Tsitologia 5, 391–403.Google Scholar
Raikova, E.V. (1965) Cytophotometric investigation of DNA quantity in cell nuclei of Polypodium hydriforme Ussov (Coelenterata) at different stages of its life cycle. Journal Obshei Biologii 26, 546–552.Google Scholar
Raikova, E.V. (1980) Morphology, ultrastructure and development of the parasitic larva and its surrounding trophamnion of Polypodium hydriforme Ussov (Coelenterata). Cell and Tissue Research 206, 487–500.CrossRefGoogle ScholarPubMed
Raikova, E.V. (1984) Ultrastructure of the stolon of Polypodium hydriforme Ussov (Coelenterata) parasitic in oocytes of acipenserid fishes. Monitore Zoologico Italiano 18, 1–24.Google Scholar
Raikova, E.V. (1985) Cytological paradoxes in the life cycle of a coelenterate Polypodium hydriforme—intracellular parasite of oocytes of acipenserid fishes. Tsitologia 27, 391–401.Google ScholarPubMed
Raikova, E.V. (1987) Peculiarities of the embryonic development of Polypodium hydriforme Ussov (Coelenterata), a parasite of acipenserid oocytes. Gegenbaur's morphologische Jahrbücher 133, 99–121.Google ScholarPubMed
Raikova, E.V. (1988) On systematic position of Polypodium hydriforme Ussov (Cnidaria). In Koltun, V. and Stepanjants, S.D. (eds) Sponges and Cnidaria. Contemporary state and perspectives of research. Leningrad: Zoological Institute of the Academy of Sciences of the USSR, pp. 116–122.Google Scholar
Raikova, E.V. (1990) Fine structure of the nematocytes of Polypodium hydriforme Ussov (Cnidaria). Zoologica Scripta 19, 1–11.CrossRefGoogle Scholar
Raikova, E.V. (1994) Life cycle, cytology, and morphology of Polypodium hydriforme, a coelenterate parasite of the eggs of Acipenseriform fishes. Journal of Parasitology 80, 1–22.CrossRefGoogle ScholarPubMed
Raikova, E.V. (1995) Occurrence and ultrastructure of collar cells in the stomach gastrodermis of Polypodium hydriforme Ussov (Cnidaria). Acta Zoologica 76, 11–18.CrossRefGoogle Scholar
Raikova, E.V. and Kameneva, T.O. (1996) Electron microscopic investigation of a stolon of Polypodium hydriforme—a parasite of oocytes of Acipenseriform fishes during its eversion. Tsitologia 38, 542–550.Google Scholar
Raikova, E.V. and Kameneva, T.O. (1997) Extracellular microtubules in mesoglea of a cnidarian Polypodium hydriforme. Doklady Rossiiskoi Academii Nauk 352, 265–267.Google Scholar
Raikova, E.V. and Napara, T.O. (1999) Ultrastructure of muscle cells of a parasitic cnidarian Polypodium hydriforme. Tsitologia 41, 425–431.Google Scholar
Raikova, E.V., Ibragimov, A.Yu. and Raikova, O.I. (2007) Muscular system of a peculiar parasitic cnidarian Polypodium hydriforme: a phalloidin fluorescence study. Tissue and Cell 39, 79–87.CrossRefGoogle ScholarPubMed
Schlegel, M., Lom, J., Stechmann, A., Bernhard, D., Liepe, D., Dycova, I. and Sogin, M.L. (1996) Phylogenetic analysis of complete small subunit ribosomal RNA coding region of Myxidium lieberkűhni: evidence that Myxozoa are Metazoa and related to Bilateria. Archiv für Protistenkunde 147, 1–9.CrossRefGoogle Scholar
Seipel, K. and Schmid, V. (2005) Evolution of striated muscle: jellyfish and the origin of triploblasty. Developmental Biology 282, 14–26.CrossRefGoogle ScholarPubMed
Seipel, K. and Schmid, V. (2006) Mesodermal anatomies in cnidarian polyps and medusae. International Journal of Developmental Biology 50, 589–599.CrossRefGoogle ScholarPubMed
Seravin, L.N. and Raikova, E.V. (1994) Cells of Polypodium hydriforme (Cnidaria) possess mitochondria with tubular cristae. Doklady Rossiiskoi Academii Nauk 336, 418–420.Google Scholar
Siddall, M.E., Martin, D.S., Bridge, D., Desser, S.S. and Cone, D.K. (1995) The demise of a phylum of protists: phylogeny of Myxozoa and other parasitic Cnidaria. Journal of Parasitology 81, 961–967.CrossRefGoogle ScholarPubMed
Smolyanov, I.I. and Raikova, E.V. (1961) Finding of mature Polypodium hydriforme Ussov (Coelenterata) on larvae of acipenserid fishes. Doklady Academii Nauk USSR 141, 1271–1274.Google Scholar
Smothers, J.F., von Dohlen, C.D., Smith, L.H. Jr. and Spall, R.D. (1994) Molecular evidence that the myxozoan protists are metazoans. Science 265, 1719–1721.CrossRefGoogle ScholarPubMed
Zrzavý, J. (2001) The interrelationships of metazoan parasites: a review of phylum and higher-level hypotheses from recent morphological and molecular phylogenetic analyses. Folia Parasitologica 48, 81–103.CrossRefGoogle ScholarPubMed
Zrzavý, J. and Hypša, V. (2003) Myxozoa, Polypodium, and the origin of the Bilateria: the phylogenetic position of ‘Endocnidozoa’ in light of the rediscovery of Buddenbrockia. Cladistics 19, 164–169.CrossRefGoogle Scholar
Zrzavý, J., Mihulka, S., Kepka, P., Bezděk, A. and Tietz, D. (1998) Phylogeny of the Metazoa based on morphological and 18S ribosomal DNA evidence. Cladistics 14, 249–285.CrossRefGoogle ScholarPubMed