Sarcocystis hippopotami sp.n. and S.africana sp.n. [Protozoa, Sarcocystidae] from the hippopotamus [Artiodactyla, Hippopotamidae] in South Africa

• Autorzy: Odening K , Quandt S , Bengis R G , Stolte M , Backhardt I
• Języki publikacji: EN

Abstrakty

EN

Two new Sarcocystis species found in muscle fibres of the diaphragm of a hippopotamus in South Africa are described by light and electron microscopy. Sarcocystis hippopotami sp. n. forms macrocysts (4-10 x 0.66-1.10 mm) with a parasite-induced encapsulation of the host muscle fibre in which the plasma membrane of the latter remains unaltered. The sarcocyst wall represents a new ultrastructural type, characterized by thumb-like villar protrusions with a compact central bundle of microtubules in the core. The bradyzoites (15.6 x 2.2 µm) are straight and slender. Sarcocystis africana sp. n. forms round microcysts (diameter 0.5-0.7 mm) representing a new type of the cyst wall ultrastructure which is characterized by irregularly semicircular or rectangular villar protrusions with granular and fibrillar content. The bradyzoites (9.5 x 3.1 µm) are straight and plump.

Słowa kluczowe

EN

central bundle; electron microscopy; Sarcocystis; cyst; microcyst; wall ultrastructure; Protozoa; parasite; diaphragm; plasma membrane; muscle fibre; Hippopotamidae; encapsulation; core; Africa; fibrillar content; hippopotamus; Sarcocystidae; macrocyst; granular content; Artiodactyla; microtubule; Sarcocystis africana; Sarcocystis hippopotami; protrusion

• Wydawca: -
• Czasopismo: Acta Parasitologica
• Rocznik: 1997
• Tom: 42
• Numer: 4
• Opis fizyczny: p.187-191,fig.

Twórcy

autor

Odening K

• Institute for Zoo Biology and Wildlife Research, PF 601103, D-10252 Berlin, Germany

autor

Quandt S

• Price Forbes Chair in Wildlife Diseases, Faculty of Veterinary Science, Univeristy of Pretoria, Private Bag X04, Onderstepoort, 0110, South Africa

autor

Bengis R G

• Veterinary Investigation Centre, P.O. Box 12, Skukuza 1350, Kruger National Park, South Africa

autor

Stolte M

• Institute fur Pathologie, Tierarztliche Hochschule, Bunteweg 17, D-30559 Hannover, Germany
• Institute for Zoo Biology and Wildlife Research, PF 601103, D-10252 Berlin, Germany

autor

Backhardt I

• Institute for Zoo Biology and Wildlife Research, PF 601103, D-10252 Berlin, Germany

Bibliografia

• Dubey J. P., Speer C. A., Fayer R. 1989. Sarcocystosis of animals and man. CRC Press, Inc., Boca Raton, Florida.
• Galavíz-Silva L., Mercado-Hernández R., Ramírez-Bon E., Arredondo-Cantú J. M., Lazcano-Villareal D. 1991. Sarcocystis neotomafelis sp. n. (Protozoa; Apicomplexa) from the woodrat Neotoma micropus in Mexico. Revista Latinoamericana de Microbiologia, 33, 313-322.
• Gjerde B. 1985. Ultrastructure of the cysts of Sarcocystis rangiferi from skeletal muscle of reindeer (Rangifer tarandus tarandus). Canadian Journal of Zoology, 63, 2669-2675.
• Göbel E., Erber M., Grimm F. 1996. Sarcocystis phoeniconaii n. sp. Murata, 1986 (Apicomplexa: Sarcocystidae) des Lesser Flamingo (Phoeniconaias minor: Ciconiiformes). Berliner und Münchener Tierärztliche Wochenschrift, 109, 239-244.
• Hernández-Rodríguez S., Acosta I., Navarrete I. 1992. Sarcocystis jorrini sp. nov. from the fallow deer Cervus dama. Parasitology Research, 78, 557-562.
• Matuschka F.-R., Mehlhorn H., Abd-Al-Aal Z. 1987. Replacement of Besnoitia Matuschka and Häfner 1984 by Sarcocystis hoarensis. Parasitology Research, 74, 94-96.
• Odening K., Stolte M., Bockhardt I. 1996. On the diagnostics of Sarcocystis in cattle: sarcocysts of a species unusual for Bos taurus in a dwarf zebu. Veterinary Parasitology, 66, 19-24.
• Stolte M., Bockhardt I., Odening K. 1996. A comparative scanning electron microscope study of the cyst wall in 11 Sarcocystis species of mammals. Journal of Zoology, 239, 821-832.
• Stolte M., Bockhardt I., Odening K. 1997. First report of Sarcocystis rangiferi and a second Sarcocystis species with parasite-induced encapsulation in cervids from Central Europe. Acta Protozoologica, 36, 131-135.