Hydrogenosomes, like almost all other organelles, always grow by proliferation of preexisting organelles. Thus, each daughter cell will receive a complete set of organelles during cell division. Morphological evidence was presented showing that trichomonad hydrogenosomes, like mitochondria, may divide by three distinct processes: (1) segmentation, (2) heart-form division, and (3) partition. In the segmentation process, the hydrogenosome grows, becoming elongated with the appearance of a constriction in the central portion[…]
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