The chemoautotrophic sulphur-oxidizing bacteria, such as Thiobacillus, derive energy from the oxidation of sulphur or its compounds (e.g. sulphide), producing sulphate (SO42–). The anaerobic heterotrophic sulphate-reducing bacteria, such as Desulfovibrio, require sulphate for respiration, deriving energy from its reduction to sulphur or hydrogen sulphide. The aerobic filamentous sulphur bacteria (e.g. Beggiatoa), which belong to the phylum Myxobacteria (gliding bacteria), can grow by oxidizing sulphides to sulphates.
"sulphur bacteria." A Dictionary of Biology. . Encyclopedia.com. (November 15, 2018). https://www.encyclopedia.com/science/dictionaries-thesauruses-pictures-and-press-releases/sulphur-bacteria
"sulphur bacteria." A Dictionary of Biology. . Retrieved November 15, 2018 from Encyclopedia.com: https://www.encyclopedia.com/science/dictionaries-thesauruses-pictures-and-press-releases/sulphur-bacteria