Microbial Biogeochemistry of Aquatic Environments

Micro-organisms alter the chemistry and productivity of aquatic environments by performing complex transformations of organic and inorganic molecules. In many cases, microbes can affect the speciation, mobility, bioavailability, and toxicity of toxic elements, such as Se, Hg, and As. The mechanisms by which these reactions proceed, the in situ rates of the transformation, their quantitative significance to element cycling, the responsible microorganisms and their physiology are only poorly understood. In this project, conceptual models of biogeochemical transformations will be developed by the combination of lab and field experimental work. Laboratory work will focus on identification of biochemical pathways, isolation and physiological characterization of relevant microbes. Field work will consist of measuring in situ rates of transformations, based on methods developed in the laboratory. Physical exchanges between components, such as the flux of biogenic gases to or from the atmosphere from water or soil will be quantified.

REPORTS PUBLISHED 1999-2009

Stolz, J.F., and Oremland, R.S., in press, Arsenic, in Reitner, J., and Thiel, V., eds., Encyclopedia of GeoBiology: Springer.

Oremland, R.S., Stolz, J.F., Madigan, M., Hollibaugh, J.T., and Kulp, T.R., 2009, Response to comment on "Arsenic(III) fuels anoxygenic photosynthesis in hot spring biofilms from Mono Lake, California": Science, v. 323, no. 5914, p. 583d.

Kulp, T.R., Hoeft, S.E., Asao, M., Madigan, M.T., Hollibaugh, J.T., Fisher, J.C., Stolz, J.F., Culbertson, C.W., Miller, L.G. and Oremland, R.S., 2008, Arsenic(III) fuels anoxygenic photosynthesis in hot spring biofilms from Mono Lake, California: Science v. 321, p. 967 - 970. (on-line abstract of journal article)

Miller, L.G., and Oremland, R.S, 2008, Electricity generation by anaerobic bacteria and anoxic sediments from hypersaline soda lakes: Extremophiles, v. 12, no. 6, p. 837-848. DOI 10.1007/s00792-008-0191-5.. (on-line abstract of journal article)

Oremland, R.S., and Voytek, M.A., 2008, Acetylene as fast food: Implications for development of life on anoxic primordial Earth and in the outer solar system: Astrobiology, v. 8, no. 1, p. 45-58. (on-line abstract or on-line journal article in pdf format, 213 KB, free issue)

Baesman, S.M., Bullen, T.D., Dewald, J., Zhang, D.H., Curran, S., Islam, F.S., Beveridge, T.J., and Oremland, R.S., 2007, Formation of tellurium nanocrystals during anaerobic growth of bacteria using Te-oxyanions as respiratory electron acceptors: Applied and Environmental Microbiology, v. 73, p. 2,135-2,143. (on-line abstract of journal article)

Hoeft, S.E., Switzer Blum, J., Stolz, J.F., Tabita, F.R., Witte, B., King, G.M., Santini, J.M., and Oremland, R.S., 2007, Alkalilimnicola ehrlichii sp. nov., a novel, arsenite-oxidizing haloalkaliphilic gammaproteobacterium capable of chemoautotrophic or heterotrophic growth with nitrate or oxygen as the electron acceptor: International Journal of Systematic and Evolutionary Microbiology, v. 57, p. 504-512. (on-line abstract of journal article)

Kulp, T.R., Han, S., Saltikov, C.W., Lanoil, B.D., Zargar, K., and Oremland, R.S., 2007, Effects of imposed salinity gradients on dissimilatory arsenate reduction, sulfate reduction, and other microbial processes in sediments from two California soda lakes: Applied and Environmental Microbiology, v. 73, p. 5,130–5,137. (on-line abstract of journal article)

Miller, L.G., 2007, Book review of "Geothermal Biology and Geochemistry in Yellowstone National Park", Inskeep, W.P., and McDermott, J.R., eds.: Geofluids, v. 7, p. 270-271. (on-line review in pdf format, 40 KB, a U.S. Govenment work published by Blackwell Publishing)

Schäfer, H., Miller, L.G., Oremland, R.S., and Murrell, J.C., 2007, Bacterial cycling of methyl halides: Advances in Applied Microbiology, v. 61, p. 307-346.

Kulp, T.R., Hoeft, S.E., Miller, L.G., Saltikov, C., Murphy, J.N., Han, S., Lanoil, B., and Oremland, R.S., 2006, Dissimilatory arsenate and sulfate reduction in sediments of two hypersaline, arsenic-rich soda lakes: Mono and Searles Lakes, California : Applied and Environmental Microbiology, v. 72, p. 6,514-6,526. (on-line abstract of journal article)

Lloyd, J.R., and Oremland, R.S., 2006, Microbial transformations of arsenic in the environment: From soda lakes to aquifers: Elements, v. 2, p. 85-90.

Stolz, J.F., Basu, P., Santini, J.M., and Oremland, R.S., 2006, Arsenic and selenium in microbial metabolism: Annual Review of Microbiology, v. 60, p. 107 - 130.

Welch, A.H., Oremland, R.S., Davis, J.A., and Wilkins, S.A., 2006, Arsenic in groundwater within the CalFed solution area: Current understanding of research needs: San Francisco Estuary and Watershed Science, v. 4, no. 2, 32p. (on-line abstract and to down-load paper in pdf format)

Baesman, S.M., and Miller, L.G., 2005, Laboratory determination of the carbon kinetic isotope effects (KIEs) for reactions of methyl halides with various nucleophiles in solution: Journal of Atmospheric Chemistry, v. 52, no, 2, p. 203-219. (on-line abstract of journal article)

McDonald, I.R., Kampfer, P., Topp, E., Warner, K.L., Cox, M.J., Hancock, T.L.C., Miller, L.G., Larkin, M.J., Ducrocq, V., Coulter, C., Harper, D.B., Murrell, J.C., and Oremland, R.S., 2005, Aminobacter ciceronei sp. nov. and Aminobacter lissarensis sp. nov., isolated from various terrestrial environments: International Journal of Systematic and Evolutionary Microbiology, v. 55, p. 1,827-1,832. (on-line abstract of journal article)

Miller, L.G., Oremland, R.S., and Baesman, S.M., 2005, A bioreactor for the oxidation of the fumigant methyl bromide: Patent Number 6916446. (on-line patent description)

Oremland, R.S., Capone, D.G., Stolz, J.F., and Fuhrman, J., 2005, Whither or wither -- Geomicrobiology in the era of "community metagenomics": Nature Reviews in Microbiology, v. 3, p. 572 - 578. (on-line abstract of journal article)

Oremland, R.S., Kulp, T.R., Blum, J.S., Hoeft, S.E., Baesman, S., Miller, L.G., and Stoltz, J.F., 2005, A microbial arsenic cycle in a salt-saturated, extreme environment: Science, v. 308, p. 1,305-1,308. (on-line abstract of journal article)

Oremland, R.S., and Stolz, J.F., 2005, Arsenic, microbes, and contaminated aquifers: Trends in Microbiology, v. 13, p. 45 - 49. (on-line abstract of journal article)

Stolz, J.F., Oremland, R.S., Paster, B.J., Dewhirst, F.E., and P. Vandamme, P., 2005, Genus Sulfurospirillum, in Garrity, G., Brenner, D.J., Krieg, N.R., and Staley, J.T., eds., Bergey's Manual of Systematic Bacteriology , Second Edition, Part Two: The Proteobacteria, Part C: The Alpha-, Beta, Delta-, and Epsilonproteobacteria: New York, Springer, p. 1165 - 1168.

Hoeft, S.E., Kulp, T.R., Stolz, J.F., Hollibaugh, J.T., and Oremland, R.S., 2004, Dissimilatory arsenate reduction with sulfide as the electron donor: Experiments with Mono Lake water and isolation of strain MLMS-1, a chemoautotrophic, arsenate-respirer: Applied and Environmental Microbiology, v. 70, p. 2,741 - 2,747. (on-line abstract)

Hunerlach, M.P., Alpers, C.N., Marvin-DiPasquale, M., Taylor, H.E., and De Wild, J.F., 2004, Geochemistry of mercury and other trace elements in fluvial tailings upstream of Daguerre Point Dam, Yuba River, California, August 2001: U.S. Geological Survey Scientific Investigations Report 2004-5165. (on-line abstract or on-line report in pdf format, 20,423 KB)

Kulp, T.R., Hoeft, S.E., and Oremland, R.S., 2004, Redox transformations of arsenic oxyanions in periphyton communitiesr: Applied and Environmental Microbiology, v. 70, p. 6,428 - 6,434. (on-line abstract)

Miller, L.G., Warner, K.L., Baesman, S.M., Oremland, R.S., McDonald, I.R., Radajewski, S., and Murrell, J.C., 2004, Degradation of methyl bromide and methyl chloride in soil microcosms: Use of stable C isotope fractionation and stable isotope probing to identify reactions and the responsible microorganisms: Geochimica et Cosmochimica Acta, v. 68, no. 15, p. 3,271-3,283. (on-line abstract)

Oremland, R.S., Herbel, M.J., Switzer Blum, J., Langley, S., Beveridge, T.J., Ajayan, P.M., Sutto, T., Ellis, A.V., and Curran, S., 2004, Structural and spectral features of selenium nanospheres produced by Se-respiring bacteria: Applied and Environmental Microbiology, v. 70, p. 52-60. (on-line abstract)

Oremland, R.S., Stolz, J.F., and Hollibaugh, J.T., 2004, The microbial arsenic cycle in Mono Lake, California: FEMS Microbiology Ecology, v. 48, p. 15 - 27. (on-line abstract or on-line article in pdf format)

Snyder, N.P., Allen, J.R., Dare, C., Hampton, M.A., Schneider, G., Wooley, R.J., Alpers, C.N., and Marvin-DiPasquale, M.C., 2004, Sediment grain-size and loss-on-ignition analyses from 2002 Englebright Lake coring and sampling campaigns: U.S. Geological Survey Open-File Report 2004-1080, 46 p. (on-line abstract or on-line report in pdf format - 1.6MB)

Stamenkovic, J., Gustin, M.S., Marvin-DiPasquale, M.C., Thomas, B.A., and Agee, J.L., 2004, Distribution of total and methyl mercury in sediments along Steamboat Creek (Nevada, USA): Science of The Total Environment, v. 322, no. 1-3, p. 167-177. (on-line abstract)

Topping, B.R., Kuwabara, J.S., Marvin-DiPasquale, M.C., Agee, J.L., Kieu, L.H., Flanders, J.R., Parchaso, F., Hager, S.W., Lopez, C.B., and Krabbenhoft, D.P., 2004, Sediment remobilization of mercury in south San Francisco Bay, California: U.S. Geological Survey Scientific Investigations Report 2004-5196, 27 p. + appendices. (on-line executive summary or on-line report in pdf format, 6.9 MB)

Afkar, E., Lisak, J., Saltikov, C., Basu, P., Oremland, R.S., and Stolz, J.F., 2003, The respiratory arsenate reductase from Bacillus selenitireducens strain MLS10: FEMS Microbiology Letters, v. 226, no. 1, p. 107 - 112. (on-line abstract)

Ellis, A.S., Johnson, T.M., Herbel, M.J., Bullen, T.D., 2003, Stable isotope fractionation of selenium by natural microbial consortia: Chemical Geology, v. 195, no. 1-4, p.119-129. (on-line abstract)

Herbel, M.J., Switzer Blum, J., Borglin, S.E., and Oremland, R.S., 2003, Reduction of elemental selenium to selenide: Experiments with anoxic sediments and bacteria that respire Se-oxyanions: Geomicrobiology Journal, v. 20, p. 587-602. (on-line abstract)

Kuwabara, J.S., Alpers, C.N., Marvin-Dipasquale, M., Topping, B.R., Carter, J.L.,. Stewart, A.R.,. Fend, S.V., Parchaso, F., Moon, G.E., and Krabbenhoft, D.P., 2003, Sediment-water interactions affecting dissolved-mercury distributions in Camp Far West Reservoir, California: U.S. Geological Survey Water-Resources Investigations Report 03-4140. (on-line abstract or on-line report in pdf format, 4.3MB)

Marvin-DiPasquale, M., and Agee, J.L., 2003, Microbial mercury cycling in sediments of the San Francisco Bay-Delta: Estuaries, v. 26, p. 1,517-1,528. (on-line abstract)

Marvin-DiPasquale, M., Agee, J., Bouse, R., and Jaffe, B., 2003, Microbial cycling of mercury in contaminated pelagic and wetland sediments of San Pablo Bay, California: Environmental Geology, v. 43, p. 260-267. (on-line abstract)

Marvin-DiPasquale, M.C., Boynton, W.R., Capone, D.G., 2003, Benthic sulfate reduction along the Chesapeake Bay central channel. II. Temporal controls: Marine Ecology - Progress Series, v. 260, p. 55-70. (on-line abstract)

Miller, L.G., Baesman, S.M., and Oremland, R.S., 2003, Bioreactors for removing methyl bromide following contained fumigations: Environmental Science and Technology, v. 37, no. 8, p. 1698-1704. (on-line abstract or on-line pdf file - published by the American Chemical Society; not subject to U.S. copyright.

Oremland, R.S., and Stoltz, J.F., 2003, The ecology of arsenic: Science, v. 300, p. 939-944. (on-line abstract)

Oremland, R.S., 2003, Biodegradation of atmospheric halocarbons, in Haggblom, M.M., and Bossert, I.D., eds., Dehalogenation: Microbial Processes and Environmental Applications: Dordrecht, Kluwer Academic Publishers, p. 323-345.

Bill, M., Miller, L.G., and Goldstein, A.H., 2002, Carbon isotope fractionation of methyl bromide during agricultural soil fumigations: Biogeochemistry, v. 60, p. 181-190. (on-line abstract)

Gill, G., Stephenson, M., Coale, K., Foe, C., and Marvin-DiPasquale, M., 2002, Conceptual Model and Working Hypotheses of Mercury Cycling and Transport in the Bay-Delta Ecosystem and its Tributaries: The Delta Biogeochemistry Group. (on-line pdf report)

Herbel, M.J., Blum, J.S., Hoeft, S.E., Cohen, S.M., Arnold, L.L., Lisak, J., Stolz, J.F., and Oremland, R.S., 2002, Dissimilatory arsenate reductase activity and arsenate-respiring bacteria in the bovine rumen fluid, hamster feces, and the termite hindgut: FEMS Microbiology Ecology, v. 41, p. 59-67. (on-line abstract)

Herbel, M.J., Johnson, T.M., Tanji, K.K., Gao, S., and Bullen, T.D., 2002, Selenium stable isotope ratios in California agricultural drainage water management systems: Journal of Environmental Quality, v. 31, p. 1,146-1,156. (on-line abstract)

Hoeft, S.E., Lucas, F., Hollibaugh, J.T., and Oremland, R.S., 2002, Characterization of microbial arsenate reduction in the anoxic bottom waters of Mono Lake, California: Geomicrobiology Journal, v. 19, no. 1, p. 23-40. (on-line abstract)

Kuwabara, J.S., Marvin-Dipascuale. M., Praskins, W., Byron, E., Topping, B.R., Carter, J.L., Fend, S.V., Parchaso, F., Krabbenhoft, D.P., and Gustin, M.S., 2002, Flow of dissolved forms of mercury across the sediment-water interface in Lahontan Reservoir, Nevada: U.S. Geological Survey Water-Resources Investigations Report 02-4138, 48 p. (on-line abstract or on-line report in pdf format, 2.7MB)

Marvin-DiPasquale, M., 2002, Environmental controls on methylmercury production and degradation in Florida Everglades sediments, in Proceedings and Summary Report: Workshop on the Fate, Transport, and Transformation of Mercury in Aquatic and Terrestrial Environments, May 8-10, 2001, West Palm Beach, FL--US EPA National Risk Management Research Laboratory, Office of Reserach and Development, and US Geological Survey Toxic Substances Hydrology Program, Office of Water Quality, EPA/625/R-02/005, P. B-43.

McDonald, I.R., Warner, K.L., McAnulla, C., Woodall, C.A., Oremland, R.S., and Murrell, J.C., 2002, A review of bacterial methyl halide degradation: Biochemistry, genetics and molecular ecology: Environmental Microbiology, v. 4, p. 193 - 203. (on-line abstract)

Miller, L.G., and Goodwin, K.D., 2002, Foreward to the Special Issue on Biogeochemistry of Halomethanes: Biogeochemistry, v. 60, p. 119-120.

Oremland, R.S., 2002, Microbial Redox Cycling of Arsenic Oxyanions in Anoxic Environments, in Aiken, G.R., and Kuniansky, E.L., eds., U.S. Geological Survey Artificial Recharge Workshop Proceedings, Sacramento, California: U.S. Geological Survey Open-File Report 02-89, p. 63-65. (on-line report)

Oremland, R.S., Hoeft, S.E., Santini, J.M., Bano, N., Hollibaugh, R.A., and Hollibaugh, J.T., 2002, Anaerobic oxidation of arsenite in Mono Lake water and by a facultative, arsenite-oxidizing chemoautotroph, strain MLHE-1: Applied & Environmental Microbiology, v. 68, p. 4,795 - 4,802. (on-line abstract)

Roesler, C.S., Culbertson, C.W., Etheridge, S.M, Goericke, R., Kiene, R.P., Miller, L.G., and Oremland, R.S., 2002, Distribution, production, and ecophysiology of Picocycstis strain ML in Mono Lake, CA: Limnology and Oceanography, v. 47, p. 440-452. (on-line abstract)

Schaefer, J.E., Goodwin, K.D., MacDonald, I., Murrell, J.C., and Oremland, R.S., 2002, Isolation and characterization of Ruegeria methylohalidivorans, gen. nov., sp.nov., a marine methylotroph that grows on methyl bromide: International Journal of Systematic and Evolutionary Microbiology, v. 52, p. 851-859. (on-line abstract)

Stolz, J.F., Basu, P., and Oremland, R.S., 2002, Microbial transformation of elements: The case of arsenic and selenium: International Microbiology, v. 5, p. 201 - 207. (on-line abstract)

Stolz, J.F., and Oremland, R.S., 2002, Genus Sulfurospirillum: Bergey's Manual of Determinative Bacteriology, second edition, Williams and Wilkins, Baltimore.

Thomas, M.A., Conaway, C.H., Steding, D.J., Marvin-DiPasquale, M., Abu-Saba, K.E., and Flegal, A.R., 2002, Mercury contamination from historic mining in water and sediment, Guadalupe River and San Francisco Bay, California: Geochemistry: Exploration, Environment, and Analysis, v. 2, p. 211-217. (on-line abstract)

Blum, J.S., Stoltz, J.F., Oren, A., and Oremland, R.S., 2001, Selenihalanaerobacter shriftii gen. nov., sp. nov., a halophilic anaerobe from Dead Sea sediments that respires selenate: Archives of Microbiology, v. 175, p. 208-219. (on-line abstract)

Ehrlich, H.L., Oremland, R.S., and Zehr, J.P., 2001, Biogeochemical Cycles: Encyclopedia of Life Sciences, Macmillan Press, London.

Goodwin, K.D., Varner, R.K., Crill, P.M., and Oremland, R.S., 2001, Consumption of troposheric levels of methyl bromide by C1-compound utilizing bacteria and comparison to saturation kinetics: Applied Environmental Microbiology, v. 67, p. 5,437 - 5,443. (on-line abstract)

Kalin, R.M., Hamilton, J.T.G., Harper, D.B., Miller, L.G., Lamb, C., Kennedy, J.T., Downey, A., McCauley, S.E., and Goldstein, A.H., 2001, Continuous flow stable isotope methods for study of d¹³C fractionation during halomethane production and degradation: Rapid Communications in Mass Spectroscopy, v. 15, p. 357-363. (on-line abstract)

Marvin-DiPasquale, M., Agee, J., Krabbenhoft, D., and Oremland, R.S., 2001, Methylmercury formation and degradation in sediments of the Carson River System: US Geological Survey Administratve Report to US Environmental Protection Agence, Region IX.

Marvin-DiPasquale, M., Agee, J., and Oremland, R.S., 2001, Environmental controls on methylmercury production and degradation by bacteria in Floria Everglades sediments: US Geological Survey Administrative Report to the South Florida Water Management District, West Palm Beach, FL.

Miller, L.G., Kalin, R.M., McCauley, S.E., Hamilton, J.T.G., Harper, D.B., Millet, D.B., Oremland, R.S., and Goldstein, A.H., 2001, Large carbon isotope fractionation associated with oxidation of methyl halides by methylotrophic bacteria: Proceedings of the National Academy of Sciences USA, v. 98, p. 5,833-5,837. (on-line report)

Oremland, R.S., Newman, D.K., Kail, B.W., and Stolz, J.F., 2001, Bacterial respiration of arsenate and its significance in the environment in Frankenberger, W.T., Jr., ed., Environmental Chemistry of Arsenic: N.Y., Marcel Dekker, p. 273-296.

Woodall, C.A., Warner, K., Oremland, R.S., Murrell, J.C., and McDonald, I.R., 2001, Identification of methyl halide utilizing genes in strain IMB-1, a methyl bromide utilizing bacterium, suggests a high degree of conservation of methyl halide specific genes in Gram-negative bacteria: Applied and Environmental Microbiology, v. 67, p. 1,959-1,963. (on-line abstract)

Cytryn, E., Minz, D., Oremland, R.S., and Cohen, Y., 2000, Distribution and diversity of Archaea corresponding to the limnological cycle of a hypersaline stratified lake (Solar Lake, Sinai, Egypt): Appl. Environ. Microbiol., v. 66, p. 3269-3276. (on-line abstract)

Herbel, M.J., Johnson, T.M., Oremland, R.S., and Bullen, T.D., 2000, Fractionation of selenium isotopes during bacterial respiratory reduction of selenium oxyanions: Geochimica et Cosmochimica Acta, v. 64, p. 3701 - 3709. (on-line abstract)

Krabbenhoft, D., Hurley, J., Aiken, G., Gilmour, C., Marvin-DiPasquale, M., Orem, W., and Harris, R., 2000, Mercury cycling in the Florida Everglades: a mechanistic field study: Verhandlungen Internat. Verein Limnologie, v. 27, no. 3, p. 1657-1660.

Marvin-DiPasquale, M., Agee, J., Alpers, C.N., and Thomas, M., 2000, Microbial mercury cycling in sediments associated with historic mining in California, in Conference Proceedings: Assessing and Managing Mercury from Historic and Current Mining Activities, San Francisco, CA, November 28-30, 2000- US EPA, Office of Research Development, p. 63-67.

Marvin-DiPasquale, M., Agee, J., McGowan, C., Oremland, R.S., Thomas, M., Krabbenhoft, D., and Gilmour, C., 2000, Methyl-mercury degradation pathways: A comparison among three mercury-impacted ecosystems: Environmental Science and Technolgy, v. 34, p. 4,908-4,916. (on-line abstract)

Oremland, R.S., 2000, Selenium, in Ledenberg, J., ed., Encyclopedia of Microbiology, Second Edition: Academic Press, N.Y., p. 238-247.

Oremland, R.S., Dowdle, P.R., Hoeft, S., Sharp, J.O., Schaefer, J.K., Miller, L.G., Blum, J., Smith, R.L., Bloom, N.S., and Wallschlaeger, D., 2000, Bacterial dissimilatory reduction of arsenate and sulfate in meromictic Mono Lake, California: Geochimica et Cosmochimica Acta, v. 64, p. 3073-3084. (on-line abstract)

Oremland, R.S., and Stolz, J., 2000, Dissimilatory reduction of selenate and arsenate in nature, in Lovely, D.R., ed., Environmental Metal-Microbes Interaction. ASM Press, Washington, DC, p. 199-224.

Schlekat, C.E., Dowdle, P.R., Lee, B.G., Luoma, S.N. and Oremland, R.S., 2000, Bioavailability of particle-associated Se to the bivalve Potamocorbula amurensis: Environmental Science and Technology, v. 34, p. 4504-4510. (on-line abstract or on-line pdf file - - published by the American Chemical Society; not subject to U.S. copyright.)

Zobrist, J., Dowdle, P.R., Davis, J.A., and Oremland, R.S., 2000, Mobilization of arsenite by dissimilatory reduction of adsorbed arsenate: Environmental Science & Technology, v. 34, p. 4747-4753. (on-line abstract)

Joye, S.B., Connell, T.L., Miller, L.G., Jellison, R., and Oremland, R.S., 1999, Oxidation of ammonia and methane in an alkaline, saline lake: Limnol. Oceanogr., v. 44, p. 178-188. (on-line abstract)

Krabbenhoft, D.P., Hurley, J.P., Marvin-DiPasquale, M., Orem, W.H., Aiken, G.R., Schuster, P.F., Gilmour, C.C., and Harris, R., 1999, The aquatic cycling of mercury in the Everglades (ACME) Project: a process-based investigation of mercury biogeochemistry in a complex environmental setting, in South Florida Restoration Science Forum, Boca Raton, FL, USA: US Geological Survey Program on the South Florida Ecosystem, p. 54-55.

Marvin-DiPasquale, M., and Oremland, R.S., 1999, Methylmercury degradation in the Florida Everglades, in Gerould, S., and Higer, A., eds., Proceedings of the South Florida Restoration Science Forum, Boca Raton, FL, May 17-19, 1999--US Geological Survey Program on the South Florida Ecosystem, p. 70-71.

Marvin-DiPasquale, M., and Oremland, R.S., 1999, Microbial mercury cycling in sediments of the Carson River System, in Sakrison, R., and Sturtevant, P., eds., AWRA Conference Proceedings: Watershed Management to Protect Declining Species, Seattle, WA, Dec. 5-9, 1999: American Water Resources Association, p. 517-520.

Marvin-DiPasquale, M., Oren A., Cohen Y., Oremland R.S., 1999, Radiotracer studies of bacterial methanogenesis in sediments from the Dead Sea and Solar Lake (Sinai). Chapter 12, in Oren A, ed., Microbiology and Biogeochemistry of Hypersaline Environments: Boca Raton, CRC Press, p 149-160. (on-line chapter introduction and references)

Oremland, R.S., Blum, J.S., Burns Bindi, A., Dowdle, P.R., Herbel, M., and Stolz, J.F., 1999, Simultaneous reduction of nitrate and selenate by cell suspensions of Selenium-respiring bacteria: Appl. Environ. Microbiol., p. 4385-4392. (on-line abstract)

Schaefer, J.K., and Oremland, R.S., 1999, Oxidation of methyl halides by the facultative methylotroph, strain IMB-1: Appl. Environ. Microbiol., v. 65, p. 5035-5041. (on-line abstract)

Stolz, J.F., Ellis, D.J., Switzer Blum, J., Ahmann, D., Oremland, R.S., and Lovely, D.R., 1999, Sulfurospirillum barnesii sp. nov., Sulfurospirillum arsenophilus sp. nov., and the Sulfurospirillum clade in the Epsilon Proteobacteri bacteria: Int. J. Systematic Bacteriol, v. 49, p. 1177-1180.

Stolz, J.F., and Oremland, R.S., 1999, Bacterial respiration of selenium and arsenic: FEMS Reviews, v. 23, p. 615-627. (on-line abstract)

FOR ADDITIONAL INFORMATION ON THIS PROJECT, CONTACT:
Ronald S. Oremland
U.S. Geological Survey, 345 Middlefield Rd, MS 480, Menlo Park, CA 94025
Email: roremlan@usgs.gov
Telephone: 650-329-4482

Laurence G Miller
U.S. Geological Survey, 345 Middlefield Rd, MS 480, Menlo Park, CA 94025
Email: lgmiller@usgs.gov
Telephone: 650-329-4475

For information on additional projects in the National Research Program, see Indexes to NRP projects and bibliographies