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A myxozoan-like parasite causing xenomas in the brain of the mole, Talpa europaea L., 1758 (Vertebrata, Mammalia)

Published online by Cambridge University Press:  02 January 2001

C. FRIEDRICH
Affiliation:
Institut für Zoologie, Karl-Franzens-Universität Graz, Universitätsplatz 2, A-8010 Graz, Austria
E. INGOLIC
Affiliation:
Forschungsinstitut für Elektronenmikroskopie, Technische Universität Graz, Steyrergasse 17, A-8010 Graz, Austria
B. FREITAG
Affiliation:
Institut für Zoologie, Karl-Franzens-Universität Graz, Universitätsplatz 2, A-8010 Graz, Austria
G. KASTBERGER
Affiliation:
Institut für Zoologie, Karl-Franzens-Universität Graz, Universitätsplatz 2, A-8010 Graz, Austria
V. HOHMANN
Affiliation:
Aventis Pharma Deutschland GmbH, Königsteiner Strasse 10, D-65812 Bad Soden a. T., Germany
G. SKOFITSCH
Affiliation:
Institut für Zoologie, Karl-Franzens-Universität Graz, Universitätsplatz 2, A-8010 Graz, Austria
U. NEUMEISTER
Affiliation:
Institut für Zoologie, Karl-Franzens-Universität Graz, Universitätsplatz 2, A-8010 Graz, Austria
O. KEPKA
Affiliation:
Institut für Zoologie, Karl-Franzens-Universität Graz, Universitätsplatz 2, A-8010 Graz, Austria

Abstract

Light and transmission electron microscopy revealed pericytes of brain capillaries of moles (Talpa europaea L., 1758) as parasitized intracellularly. These host cells were enlarged and of globular or ellipsoid shape, and incorporated a cell-within-cell sequence of primary, secondary and, rarely found, tertiary developmental stages of an eukaryotic organism. Other stages like spores were not discovered either in brain or in other organs. Due to the vertebrate host, and the parasitic cells showing the enveloped state this parasite can be classified as belonging to the Myxozoa rather than Paramyxea. Since spores, which would allow an exact identification of the parasite, could not be detected and mammals are very unusual hosts for Myxozoa, the parasite was designated a myxozoan-like organism.

Type
Research Article
Copyright
2000 Cambridge University Press

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