Sulfur bacteria From Wikipedia the free encyclopedia Look up sulfur bacteria in Wiktionary, the free dictionary. Sulfur bacteria may refer to: Green sulfur bacteria Purple sulfur bacteria Sulfate-reducing bacteria Sulfur-reducing bacteria Index of articles associated with the same name This article includes a list of related items that share the same name (or similar names). If an internal link incorrectly led you here, you may wish to change the link to point directly to the intended article.