Isotope effects associated with the anaerobic oxidation of sulfide by the purple photosynthetic bacterium, Chromatium vinosum期刊界 All Journals 搜尽天下杂志传播学术成果专业期刊搜索期刊信息化学术搜索

Isotope effects associated with the anaerobic oxidation of sulfide by the purple photosynthetic bacterium, Chromatium vinosum

Authors:	Brian Fry. Howard Gest J.M. Hayes

Affiliation:	Research Program in Biogeochemistry, Departments of Biology, Chemistry, Geology, Indiana University, Bloomington, IN 47405, U.S.A.;Photosynthetic Bacteria Group, Department of Biology, Indiana University, Bloomington, IN 47405, U.S.A.

Abstract:	Abstract Small inverse isotope effects of 1–3‰ were consistently observed for the oxidation of sulfide to elemental sulfur during anaerobic photometabolism by Chromatium vinosum . The inverse fractionation can be accounted for by an equilibrium isotope effect between H₂S and HS⁻, and may indicate that C. vinosum (and other photosynthetic bacteria) utilizes H₂S rather than HS⁻ as the substrate during sulfide oxidation.

Keywords:	Stable sulfur isotopes photosynthetic bacteria sulfide oxidation Chromatium vinosum isotope fractionation
本文献已被 ScienceDirect 等数据库收录！