Tritrichomonas foetus: ultrastructure and cytochemistry of endocytosis

Tritrichomonas foetus: ultrastructure and cytochemistry of endocytosis

Tritrichomonas foetus ingests horseradish peroxidase, native ferritin, cationized ferritin, and 0.08 micron latex beads by a process which involves the formation of pinocytic vesicles. These vesicles fuse with each other and with lysosomes forming large vacuoles. Biochemical determinations on the in...

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Bibliographic Details
Published in:Experimental parasitology Vol. 62; no. 3; p. 405
Main Authors: Benchimol, M, da Cunha e Silva, N L, Elias, C A, de Souza, W
Format: Journal Article
Language:English
Published: United States 01-12-1986
Subjects:
Animals
Cytoplasmic Granules - physiology
Cytoplasmic Granules - ultrastructure
Endocytosis
Ferritins
Freeze Fracturing
Horseradish Peroxidase
Microscopy, Electron
Tritrichomonas - physiology
Tritrichomonas - ultrastructure
Vacuoles - physiology
Vacuoles - ultrastructure
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Summary:Tritrichomonas foetus ingests horseradish peroxidase, native ferritin, cationized ferritin, and 0.08 micron latex beads by a process which involves the formation of pinocytic vesicles. These vesicles fuse with each other and with lysosomes forming large vacuoles. Biochemical determinations on the ingestion of horseradish peroxidase and morphometric analysis on the ingestion of cationized ferritin covered latex beads indicated that T. foetus has high endocytic activity. The process of ingestion of the various tracers used was analyzed by transmission electron microscopy of thin sections and freeze fracture replicas.
ISSN:0014-4894
DOI:10.1016/0014-4894(86)90049-4