| Desulfotomaculum | A genus of rod-shaped (straight or curved), anaerobic, chemoorganotrophic motile bacteria that stain Gram-negative but have Gram-positive cell walls. Found in soil, the rumen and elsewhere. The type species is Desulfotomaculum nigrificans. (05 Mar 2000) |
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| Desulfotomaculum nigrificans | A species found in canned corn showing "sulfur stinker spoilage." It is not pathogenic. (05 Mar 2000) |