title: The use of stable sulfur isotope labelling to elucidate sulfur metabolism by Clostridium pasteurianum.
abstract: An unique isotope labelling experiment was conducted whereby mixtures of sulfate and sulfite of different isotopic compositions were metabolized by Clostridium pasteurianum. The results showed during reduction of 1 mM SO3= plus 1 mM SO4=, essentially all evolved H2S arose from the sulfite whereas in the case of cellular sulfur, 85% was derived from sulfite and the remainder from sulfate.
mesh_terms: D003013:Clostridium / Q000378:metabolism*; D013431:Sulfates / Q000378:metabolism; D013447:Sulfites / Q000378:metabolism; D013455:Sulfur / Q000378:metabolism*; D013460:Sulfur Isotopes
chemical_list: D013431:Sulfates; D013447:Sulfites; D013460:Sulfur Isotopes; D013455:Sulfur