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Sarcocystis inghami n. sp. (Sporozoa: Sarcocystidae) from the skeletal muscles of the Virginia opossum Didelphis virginiana in Michigan

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Abstract

This report describes the newly identified Sarcocystis inghami n. sp. from the skeletal muscles of opossums (Mammalia: Didelphidae) that were collected from south central Michigan (42° 43′-42° 79′N, 84° 18′-84°mathtype="display">6'W), USA. The new species is distinguished from all species described from North and South American opossums by the distinctive morphology of the villar protrusions on the cyst wall. Sarcocysts of S. inghami are microscopic, up to 700 μm long and 110 μm wide. The sarcocyst wall is up to 7 μm thick, with long, stalked protrusions which average 5.5 × 1.2 μm. These are constricted at the base, expanded laterally, rounded off distally and occasionally bifid. The villar protrusions have numerous microtubules without electron−dense bodies that extend from the tips into the granular layer. Bradyzoites are 10.7 × 4.3 (8−−12 × 4−−5) μm. This is the second species of Sarcocystis sarcocyst described from the Virginia opossum in North America.

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References

  • Cheadle, M.A. (2001) Sarcocystis greineri n. sp. (Protozoa: Sarcocystidae) in the Virginia opossum (Didelphis virginiana). Journal of Parasitology, 87, 1085–1089.

    PubMed  Google Scholar 

  • Dubey, J.P. & Odening, K. (2001) Toxoplasmosis and related infections. In: Samuel, B., Pybus, M. & Kocan, A.M. (Eds) Parasitic diseases of wild mammals. Ames, Iowa: Iowa State University Press, pp. 478–519.

    Google Scholar 

  • Dubey, J.P., Speer, C.A. & Fayer, R. (1989) General biology. In: Sarcocystosis of animal and man. Boca Raton, Florida: CRC Press, 215 pp.

    Google Scholar 

  • Elsheikha, H.M., Murphy, A.J., Fitzgerald, S.D., Mansfield, L.S., Massey, J.P. & Saeed, A.M. (2003) Purification of Sarcocystis neurona sporocysts from opossum (Didelphis virginiana) using potassium bromide discontinuous density gradient centrifugation. Parasitology Research., 90, 104–109.

    PubMed  Google Scholar 

  • Ewa, K. & Daniel, R.S. (1999) Method for detection and enumeration of Cryptosporidium parvum oöcysts in feces, manures, and soils. Applied and Environmental Microbiology, 65, 2820–2826.

    PubMed  Google Scholar 

  • Mandour, A.M. (1965) Sarcocystis garnhami n. sp. in the skeletal muscle of an opossum, Didelphis marsupialis. Journal of Protozoology, 12, 606–609.

    PubMed  Google Scholar 

  • Odening, K. (1998) The present state of species-systematics in Sarcocystis Lankester, 1882 (Protista, Sporozoa, Coccidia). Systematic Parasitology, 41, 209–233.

    Article  Google Scholar 

  • Scholtyseck, E., Entzeroth, R. & Chobotar, B. (1982) Light and electron microscopy of Sarcocystis sp. in the skeletal muscle of an opossum (Didelphis virginiana). Protistologica, 18, 527–532.

    Google Scholar 

  • Scorza, J.V., Torrealba, J.F. & Dagert, C. (1957) Klossiella tejerai nov. sp. y Sarcocystis didelphidis nov. sp. parasitos de un Didelphis marsupialis de Venezuela. Acta Biologica Venezuelica, 2, 97–108.

    Google Scholar 

  • Shaw, J.J. & Lainson, R. (1969) Sarcocystis of rodents and marsupials in Brazil. Parasitology, 59, 233–244.

    PubMed  Google Scholar 

  • Tanhauser, S.M., Yowell, C.A., Cutler, T.J., Greiner, E.C., Mackay, R.J. & Dame, J.B. (1999) Multiple DNA markers differentiate Sarcocystis neurona and Sarcocystis falcatula. Journal of Parasitology, 85, 221–228.

    PubMed  Google Scholar 

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Authors and Affiliations

  1. Molecular Epidemiology Laboratory, College of Veterinary Medicine, Michigan State University, MI, 48824, USA

    Hany M. Elsheikha & A. Mahdi Saeed

  2. Animal Health Diagnostic Laboratory, College of Veterinary Medicine, Michigan State University, MI, 48824, USA

    Scott D. Fitzgerald

  3. Department of Microbiology and Molecular Genetics, College of Veterinary Medicine, Michigan State University, MI, 48824, USA

    Linda S. Mansfield

Authors
  1. Hany M. Elsheikha
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  2. Scott D. Fitzgerald
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  3. Linda S. Mansfield
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  4. A. Mahdi Saeed
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Elsheikha, H.M., Fitzgerald, S.D., Mansfield, L.S. et al. Sarcocystis inghami n. sp. (Sporozoa: Sarcocystidae) from the skeletal muscles of the Virginia opossum Didelphis virginiana in Michigan. Syst Parasitol 56, 77–84 (2003). https://doi.org/10.1023/A:1025579218449

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  • DOI: https://doi.org/10.1023/A:1025579218449

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