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Pringsheim (1946) noted the discovery of iron oxidizing organisms in addition to iron bacteria by Ehrenberg (1838) as a kind of chemoautotrophy that reduces carbon dioxide nonphotosynthetically.  Pringsheim published a list of iron depositing organisms that includes the colorless and several photosynthetic Chrysophyceae, as well as 18 species of cyanobacteria, several PS and non-PS greens and euglenoids.



Ehrenberg, C.G.  1838.  Die Infusionsthierchen als vollkommene Organismen.  Leipzig: Leopold Voss.

Pringsheim, E.G.  1946.  On iron flagellates. Philos. Trans. Roy. Soc. Lond., Ser. B 232: 311-342.