Sulfur Biogeochemistry—Past and Present

16 V. BrüchertRudnicki, M.D., Elderfield, H., and Spiro, B., 2001, Fractionation of sulfur isotopesduring bacterial sulfate reduction in deep ocean sediments at elevatedtemperatures: Geochimica et Cosmochimica Acta, v. 65, p. 777–789, doi:10.1016/S0016-7037(00)00579-2.Rueter, P., Rabus, R., Wilkes, H., Aeckersberg, F., Rainey, F., Jannasch, H., andWiddel, F., 1994, Anaerobic oxidation of hydrocarbons in crude oil bynew types of sulphate-reducing bacteria: Nature, v. 372, p. 455–458, doi:10.1038/372455A0.Schauder, R., Eikmanns, B., Thauer, R.K., Widdel, F., and Fuchs, G., 1986,Acetate oxidation to CO 2 in anaerobic bacteria via a novel pathway notinvolving reactions of the citric acid cycle: Archives of Microbiology,v. 145, p. 162–172.Shen, Y.A., Buick, R., and Canfield, D.E., 2001, Isotope evidence for microbialsulphate reduction in the early Archaean era: Nature, v. 410, p. 77–81,doi: 10.1038/35065071.Sørensen, J., Christensen, D., and Jørgensen, B.B., 1981, Volatile fatty acids andhydrogen as substrates for sulfate-reducing bacteria in anerobic marinesediment: Applied and Environmental Microbiology, v. 42, p. 5–11.Steuber, J., and Kroneck, P.M.H., 1998, Desulfoviridin, the dissimilatory sulfitereductase from Desulfuvibrio desulfuricans (Essex): New structural andfunctional aspects of the membranous enzyme: Inorganica Chimica Acta,v. 275-276, p. 52–57, doi: 10.1016/S0020-1693(97)06143-4.Strauss, H., 1999, Geological evolution from isotope proxy signals—sulfur: ChemicalGeology, v. 161, p. 89–101, doi: 10.1016/S0009-2541(99)00082-0.Thamdrup, B., Finster, K., Hansen, J.W., Bak, F., 1993, Bacterial disproportionationof elemental sulfur coupled to chemical reduction of iron and manganese:Applied and Environmental Microbiology, v. 59, p. 101–108.Valentine, D.L., and Reeburgh, W.S., 2000, New perspectives on anaerobicmethane oxidation: Environmental Microbiology, v. 2, p. 477–484, doi:10.1046/J.1462-2920.2000.00135.X.Werne, J.P., Sageman, B.B., Lyons, T.W., and Hollander, D.J., 2002, An integratedassessment of a “type euxinic” deposit: Evidence for multiplecontrols on black shale deposition in the Middle Devonian Oatka CreekFormation: American Journal of Science, v. 302, p. 110–143.Werne, J.P., Lyons, T.W., Hollander, D.J., Formolo, M.J., and Sinninghe Damsté,J.S., 2003, Reduced sulfur in euxinic sediments of the Cariaco Basin:Sulfur isotope constraints on organic sulfur formation: Chemical Geology,v. 195, p. 159–179.Westermann, P., 1994, The effect of incubation-temperature on steady-stateconcentrations of hydrogen and volatile fatty-acids during anaerobicdegradation in slurries from wetland sediments: FEMS MicrobiologyEcology, v. 13, p. 295–302.White, D., 1995, The physiology and biochemistry of prokaryotes: New York,Oxford University Press, 378 p.Wortmann, U.G., Bernasconi, S.M., and Böttcher, M.E., 2001, Hypersulfidicdeep biosphere indicates extreme sulfur isotope fractionation duringsingle-step microbial sulfate reduction: Geology, v. 29, p. 647–650.MANUSCRIPT ACCEPTED BY THE SOCIETY MARCH 28, 2004Printed in the USA