作者: Kenneth R. Olson , Karl D. Straub
DOI: 10.1152/PHYSIOL.00024.2015
关键词: Biology 、 Sulfide 、 Astrobiology 、 Hydrogen sulfide 、 Hydrogen sulfide metabolism 、 Sulfur 、 Ecology 、 Ambient oxygen 、 Energy source 、 Metabolism 、 Abiogenesis
摘要: The chemical versatility of sulfur and its abundance in the prebiotic Earth as reduced sulfide (H2S) implicate this molecule origin life 3.8 billion years ago also a major source energy first seven-eighths evolution. tremendous increase ambient oxygen ∼ 600 million brought an end to H2S source, H2S-dependent animals either became extinct, retreated isolated niches, or adapted. 3 molecular tinkering were not lost, however, much biochemical armamentarium easily adapted oxic environment where it contributes metabolism signaling even humans. This review examines role evolution signaling.