hydrogenosome

hydrogen +‎ -o- +‎ -some

• IPA^(key): /haɪdɹoʊˈd͡ʒɛnəsoʊm/

hydrogenosome (plural hydrogenosomes)

1. (cytology) A membrane-bound form of organelles that produce molecular hydrogen and ATP in some anerobic ciliates, trichomonads and fungi, remarkable in that most forms contain no DNA.
   • 2008, Marlene Benchimol, “Structure of the Hydrogenosome”, in Jan Tachezy, editor, Hydrogenosomes and Mitosomes: Mitochondria of Anaerobic Eukaryotes, Berlin Heidelberg: Springer, →ISBN, pages 75–96:

     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 […]

• mitochondrion
• chloroplast

• hydrogenosomal