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Avian trypanosome division; a light and electron microscope study.

SYNOPSIS. A magpie isolate of Trypanosoma avium was studied using cultured epimastigotes and trypomastigotes from experimentally infected canaries. Apparent signs of division (double nuclei, flagella, and kinetoplasts) were observed in trypomastigote forms with the light microscope. Three or 4 flagella were seen within a single flagellar pocket in epimastigotes by electron microscopy. It is suggested that apparently dividing trypomastigotes are actually blocked in the process of division.