English Sulfate-reducing bacteria English Sulfate-reducing bacteria sulfate-reducing bacteria English Bacterias Reductoras del Sulfato they are amongst the oldest type of bacteria around Sulfate-reducing bacteria sulfate-reducing bacteria sulfate-reducing bacteria sulfate-reducing bacteria Sulfate-reducing bacteria English wikipedia - Sulfate-reducing bacteria http://en.wikipedia.org/wiki/Sulfate-reducing_bacteria Sulfate-reducing bacteria English