Figure 1: Summary of ATP-producing organelles across a very limited, and arbitrarily chosen, spectrum of eukaryotic taxa. | Nature

Figure 1: Summary of ATP-producing organelles across a very limited, and arbitrarily chosen, spectrum of eukaryotic taxa.

From: A hydrogen-producing mitochondrion

Figure 1

The ciliate Nyctotherus ovalis (red star) contains hydrogenosomes, which Akhmanova et al.1 now show contain their own genome. A peculiar group of eukaryotes called microsporidia are related to fungi6, whence the ‘N’ for that group. Antarctic euglenids contain organelles that may be hydrogenosomes10. Some groups designated ‘N’ may have organelles, but their role, if any, in energy metabolism is unclear. (Data taken from refs 4,5 and references therein, and also refs 2,3, 610)

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