Generation and Physiology of Hydrogen Sulfide and Reactive Sulfur Species in Bacteria.

ABSTRACT: Sulfur is not only one of the most abundant elements on the Earth, but it is also essential to all living organisms. As life likely began and evolved in a hydrogen sulfide (H₂S)-rich environment, sulfur metabolism represents an early form of energy generation via various reactions in prokaryotes and has driven the sulfur biogeochemical cycle since. It has long been known that H₂S is toxic to cells at high concentrations, but now this gaseous molecule, at the physiological level, is recognized as a signaling molecule and a regulator of critical biological processes. Recently, many metabolites of H₂S, collectively called reactive sulfur species (RSS), have been gradually appreciated as having similar or divergent regulatory roles compared with H₂S

SUBMITTER: Han S 

PROVIDER: S-EPMC9774590 | biostudies-literature | 2022 Dec

REPOSITORIES: biostudies-literature