Encephalitozoonosis in the blue fox--morphological identification of the parasite.

Microsporidian organisms causing great losses among young blue foxes (alopex lagopus) were isolated and propagated in monolayer cell cultures and examined by transmission- and scanning electron microscopy. The parasite was found to fulfil the criteria set up for the genus Encephalitozoon and the ultrastructural findings indicated that the parasite was morphologically identical to Encephalitozoon cuniculi previously isolated from some other mammalian species. Terminal vesicles on the extruded polar filaments seen on scanning electron micrographs were discussed to be similar formation as described for the microsporidian Nosema michaelis.

[1]  Botha Ws,et al.  Canine encephalitozoonosis in South Africa. , 1979 .

[2]  J. Shadduck,et al.  Isolation of the Causative Organism of Canine Encephalitozoonosis , 1978, Veterinary pathology.

[3]  K. Nordstoga,et al.  Polyarteritis nodosa associated with nosematosis in blue foxes. , 2009, Acta pathologica et microbiologica Scandinavica. Section A, Pathology.

[4]  J. Shadduck,et al.  Fine structure of Encephalitozoon cuniculi from rabbits, mice and hamsters. , 1975, The Journal of protozoology.

[5]  R. J. Barker.  Ultrastructural observations on Encephalitozoon cuniculi Levaditi, Nicolau et Schoen, 1923, from mouse peritoneal macrophages , 1975 .

[6]  J. Shadduck,et al.  In-vitro study of host range of three isolates of Encephalitozoon (Nosema). , 1973, The Journal of infectious diseases.

[7]  V. Sprague,et al.  The ultrastructure of Encephalitozoon cuniculi (Microsporida, Nosematidae) and its taxonomic significance. , 1971, The Journal of protozoology.

[8]  R. Ishihara.  Some observations on the fine structure of sporoplasm discharged from spores of a microsporidian , 1968 .

[9]  M. Karnovsky,et al.  A formaldehyde-glutaraldehyde fixative of high osmolality for use in electron-microscopy , 1965 .

[10]  J. Weiser.  On the taxonomic position of the genus Encephalitozoon Levaditi, Nicolau & Schoen, 1923 (Protozoa: Microsporidia) , 1964, Parasitology.

[11]  P. Garnham,et al.  Nosematosis, a Microsporidial Infection of Rodents and Other Animals, Including Man , 1964, British medical journal.