(here sporozoite of Eimerian type)
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Sporozoite
of Eimeria type attaches to the surface of an intestinal epithelial
cell.
(other motile stages are merozoites - with apical complex - and microgametes - with 'perforatorium (Scholtyseck)' ). We find content of micronems (see sporozoite) in the intercellular space. The 'apical complex' is responsible for invasion of the host cell. |
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Sporozoite enters the host cell. Cytoskeleton is disintegrated and the parasite forms a pocket in the cytoplasm of the host cell called the parasitophorous vacuole (pV). Content of the rhoptries(?) (dense granules) is discharged into the pV. |
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Sporozoite
has entered the host cell enclosed by the parasitophorous vacuole.
One refractile body will disappear and the sporozoite transforms into a trophozoite in which multiplication of nuclei will start. Finaly merozoites of the first generation will develop by budding from a big multinucleate residual body. |
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