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

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Odening K., Quandt S., Bengis R. G., Stolte M., Backhardt I.

Acta Parasitologica

1997

tom 42

nr 4

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.

Ograniczanie wyników

1 Acta Parasitologica

1 Backhardt I.

1 Bengis R. G.

1 Odening K.

1 Quandt S.

1 Stolte M.

1 1997

Wyniki wyszukiwania

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