Hostname: page-component-586b7cd67f-dlnhk Total loading time: 0 Render date: 2024-11-30T23:14:24.532Z Has data issue: false hasContentIssue false
  • English
  • Français

Studies on two new species of Microsporida hyperparasitic in adult Allocreadium fasciatusi (Trematoda, Allocreadiidae)

Published online by Cambridge University Press:  06 April 2009

Elizabeth U. Canning  and
R. Madhavi
Elizabeth U. Canning
Affiliation:
Department of Zoology and Applied Entomology, Imperial College of Science and Technology, London S W7
R. Madhavi
Affiliation:
Department of Zoology, Andhra University, Waltair A. P., India
Get access Rights & Permissions [Opens in a new window]

Summary

The vegetative and sporogonic stages of Unikaryon allocreadii sp. nov. and Nosema gigantica sp. nov., from the parenchyma of adult flukes, Allocreadium fasciatusi in the gut of the freshwater fish Aplocheilus melastigma from India, are described and figured. U. allocreadii, which is uninucleate throughout development and is disporoblastic, differs from U. legeri in that it occurs in adult flukes from a freshwater host. N. gigantica has diplokaryon nuclei, at least in the sporogonic stages, and is much larger than all other microsporidia in platyhelminths.

Hatching of the spores and patholgenicity are described and the mode of transmission to the flukes is discussed. Infected flukes, which are sluggish and opaque, are often displaced from the normal site of infection.

Type
Research Article
Information
Parasitology , Volume 75 , Issue 3 , December 1977 , pp. 293 - 300
Copyright
Copyright © Cambridge University Press 1977

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

REFERENCES

Canning, E. U. (1975). The microsporidianparasites of Platyhelminthes: their morphology, development, transmission and pathogenicity. Commonwealth Institute of Helminthology, Misc. Publ. No. 2, 1–32.Google Scholar
Canning, E. U. & Nicholas, J. P. (1974). Light and electron microscope observations on Unikaryon legeri (Microsporida, Nosematidae), a parasite of the metacercaria of Meigymno-phallus minutus in Cardium edule. Journal of Invertebrate Pathology 23, 92–100.CrossRefGoogle Scholar
Canning, E. U., Lai, P. F. & Lie, K. J. (1974). Microsporidian parasites of trematode larvae from aquatic snails in West Malaysia. Journal of Protozoology 21, 19–25.CrossRefGoogle ScholarPubMed
Dollfus, R. P. (1912). Contribution à I' étude des trématodes marins des Côtes du Boulonnais. Une méeapos;tacercaire marganitigène parasite de Donax vitatus da Costa. Mémoireés de la Socié té Zoologique de France 25, 85–144.Google Scholar
Ishihara, R. (1968). Some observations on the fine structure of sporoplasm discharged from spores of a microsporidian, Nosema bombycis. Journal of Invertebrate Pathology 12, 245–58.CrossRefGoogle Scholar
Kramer, J. P. (1960). Observations on the emergence of the microsporidian sporoplasm. Journal of Insect Pathology 2, 433–9.Google Scholar
Lom, J. (1972). On the structure of the extruded microsporidian filament. Zeitschrift für Parasitenkunde 38, 200–13.CrossRefGoogle Scholar
Lom, J. & Vavra, J. (1963). The mode of sporoplasm extrusion in microsporidian spores. Acta Protozoologica 1, 81–9.Google Scholar
Madhavi, R. (1977). Life history of Allocreadium fasciatusi Kakaji, 1969 (Trematoda: Allocreadiidae) from the freshwater fish Aplocheilus melastigma McClelland. Journal of Helminthology (in the Press).Google Scholar
Sinden, R. E. & Canning, E. U. (1974). The ultrastructure of the spore of Nosema algerae (Protozoa, Microsporida) in relation to the hatching mechanism of microsporidian spores. Journal of General Microbiology 85, 350–7.CrossRefGoogle Scholar
Sprague, V. (1977). Classification and phylogeny of the Microsporidia. In Systematics of the Microsporidia (ed. Bulla, L., Cheng, T.C.). Plenum Publishing Corporation.Google Scholar
Sprague, V. & Vernick, S. H. (1968). Light and electron microscope study of a new species of Glugea (Microsporida, Nosematidae) in the 4-spined stickleback Apeltes quadracus. Journal of Protozoology 5, 547–71.Google Scholar
Voronin, V. N. (1974). On parasitism of microsporidians (Microsporida, Nosematidae) in parthenogenetic generations and cercariae of trematodes from freshwater molluscs. (In Russian). Parasitologyia 8, 359–64.Google Scholar
Weidner, E. (1972). Ultrastructural study of microsporidian invasion into cells. Zeitschrift für Parasitenkunde 40, 227–42.CrossRefGoogle ScholarPubMed