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Description of Achromatium oxaliferum

Achromatium oxaliferum was described by Schewiakoff (1893).Its large cells contain large CaCO3 inclusions occurring together with much smaller sulfur granules. The cells are spherical, ovoid, or cylindrical. Divisionis by constriction. The cells are slowly motile on solid surfaces only. Attempts at culture have been unsuccesful. A particular environment is apparently required by the sulfide-oxidizing, nonphotosynthetic bacteria such as Beggiatoa, Thiothrix, Achromatium, Macromonas, Thiovulum, Thiospira, and a few others. Their habitats appear to be areas where the gradients of both hydrogen sulfide and oxygen are overlapping or, as in running waters, where the hydrogen sulfide-providing sediment is covered by running water containing oxygen.


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Source: BioPedia

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