Microbial oxidation of sulfur

Microbial oxidation of sulfur refers to the process by which microorganisms oxidize reduced sulfur compounds to obtain energy, often supporting autotrophic carbon fixation. This process is primarily carried out by chemolithoautotrophic sulfur-oxidizing prokaryotes, which use compounds such as hydrogen sulfide (H2S), elemental sulfur (S0), thiosulfate (S2O32−), and sulfite (SO32−) as electron donors.

Source: Wikipedia — Microbial oxidation of sulfur (CC BY-SA 4.0)