USGS Professional Pages
Ronald OremlandResearch HydrologistContact InfoShort Biography 1977 to Present: Project Chief (grade: Senior Research Scientist, March, 1999). United States Geological Survey, Water Resources Division, Menlo Park, CA. 1976 to 1977: National Research Council Postdoctoral Associate, NASA Ames Research Center, Moffett Field, CA 1974 to 1976: Graduate Research Assistant, RSMAS, University of Miami 1972 to 1974: Graduate Student, RSMAS, University of Miami. 1969 to 1971: Active Duty, U.S. Navy; Commissioned 11/1969; Graduated Naval School of Diving and Salvage, Wash. D.C., 4/1970; Active Duty Station: Diving and Salvage Officer, Executive Officer, USS Utina (ATF - 163). 1968 to 1969: Graduate Student, RSMAS, University of Miami (studies interrupted by military service). Read Full Professional Summary Download CV
PATENTS:
Selenate removal from wastewaters. 1991,
Selenate removal from wastewaters. 1993.
Enhancement of bacterial oxidation of methyl bromide during agricultural fumigations. 2000. US Patent No. 6,013,254.
A bioreactor for the oxidation of the fumigant methyl bromide. 2005. US Patent No. 6916446.
Microbiologically generated nanocomposites using hybrid Te nanorods and polymers (in process of filing with colleagues at
REVIEWED PUBLICATIONS
1. Oremland, R.S. 1975. Methane production in shallow water, tropical marine sediments. Appl. Microbiol. 30: 602-608.
2. Oremland, R.S., and B.F. Taylor. 1975. Inhibition of methanogenesis in marine sediments by acetylene and ethylene: Validity of the acetylene reduction assay for anaerobic microcosms. Appl. Microbiol. 30: 707-709.
3. Oremland, R.S. and B.F. Taylor. 1977. Diurnal fluctuations of O2, N2, and CH4 in the rhizosphere of Thalassia testudinum. Limnol. Oceanog. 22: 566-569.
4. Oremland, R.S. and B.F. Taylor. 1978. Sulfate-reduction and methanogenesis in marine sediments. Geochim. Cosmochim. Acta. 42: 209-214.
5. Capone, D.G., R.S. Oremland, and B.F. Taylor. 1978. Significance of N2 fixation to the production of Thalassia testudinum. p. 71-86. In H.B. Stewart (editor), CICAR II Symposium, Caracas, Venezuela, FAO Fisheries Rpt. #200.
6. Oremland, R.S. 1979. Methanogenic activity in plankton samples and fish intestines: A mechanism for in situ methanogenesis in ocean surface waters. Limnol. Oceanog. 24: 1136-1141.
7. Oremland, R.S. and M.P. Silverman. 1979. Measurement of microbial sulfate-reduction by an automated electrical impedance technique. Geomicrobiol. J. 1: 355-372.
8. Capone, D.G., P.A. Penhale, R.S. Oremland, and B.F. Taylor. 1979. Relationship between productivity and N2(C2H2) fixation in a Thalassia testudinum community. Limnol. Oceanog. 24: 117-125.
9.
10. Culbertson, C.W., A.J.B. Zehnder, and R.S. Oremland. 1981. Anaerobic oxidation of acetylene by estuarine sediments and enrichment cultures. Appl. Environ. Microbiol. 41: 396-403.
11. Oremland, R.S. 1981. Microbial formation of ethane in anoxic, estuarine sediments. Appl. Environ. Microbiol. 42: 122-129.
12. Triska, F.J. and R.S. Oremland. 1981. Denitrification associated with periphyton communities. Appl. Environ. Microbiol. 42: 745-748.
13. Oremland, R.S., L. Marsh, and D.J. Des Marais. 1982. Methanogenesis in
14. Oremland, R.S., L.M. Marsh, and S. Polcin. 1982. Methane production and simultaneous sulfate-reduction in anoxic, salt marsh sediments. Nature 296: 143-145.
15. Oremland, R.S., C.W. Culbertson, and B.R.T. Simoneit. 1982. Methanogenic activity from Leg 64,
16. Vogel, T.M., R.S. Oremland, and K.A. Kvenvolden. 1982. Low temperature formation of hydrocarbon gases in
17. Oremland, R.S., and S. Polcin. 1982. Methanogenesis and sulfate-reduction: Competitive and noncompetitive substrates in estuarine sediments. Appl. Environ. Microbiol. 44: 1270-1276.
18. Cloern, J.E. and R.S. Oremland. 1983. Chemistry and microbiology of a sewage spill in
19. Cloern, J.E., B.E. Cole, and R.S. Oremland. 1983. Seasonal changes in the chemical and biological nature of a meromictic lake (
20. Oremland, R.S. 1983. Hydrogen metabolism by decomposing cyanobacterial aggregates in
21. Smith, R.L. , and R.S. Oremland. 1983. Anaerobic oxalate degradation: Widespread natural occurrence in aquatic sediments. Appl. Environ. Microbiol. 46: 106-113.
22. Oremland, R.S. 1983. Methane content of geothermal gases in association with seismic activity. Eos. 64: 410.
23. Cloern, J.E., B.A. Cole, and R.S. Oremland. 1983. Autotrophic processes in
24. Oremland, R.S. and D.J. Des Marais. 1983. Distribution, abundance, and carbon isotopic composition of gaseous hydrocarbons in
25. Oremland, R.S., C. Umberger, C.W. Culbertson, and R.L. Smith. 1984. Denitrification in
26. Duff, J., F.J. Triska, and R.S. Oremland. 1984. Denitrification associated with stream communities: Chamber estimates from undisturbed communities. J. Environmental Quality 13: 514-518.
27. Smith, R.L., F.S. Strohmaier, and R.S. Oremland. 1985. Isolation of anaerobic oxalate degrading bacteria from freshwater lake sediments. Arch. Microbiol. 14: 8-13.
28. Oremland, R.S., R.L. Smith, and C.W. Culbertson. 1985. Aspects of the biogeochemistry of
29. Miller, L.G., R.S. Oremland, and S. Paulsen. 1986. Measurement of N2O reductase activity in aquatic sediments. Appl. Environ. Microbiol. 51: 18-24.
30. Whelan, J.K. R.S. Oremland, M. Tarafa, R.L. Smith, R. Howarth, and C. Lee. 1986. Evidence for sulfate-reducing and methane producing microorganisms in sediments from sites 618, 619, and 622, Initial Reports of the Deep Sea Drilling Project. A. Buoma, J. Coleman, A. Meyer et al., editors, p. 767-775.
31. Tarafa, M., J. Whelan, R.S. Oremland, and R.L. Smith. 1986. Evidence for microbiological activity in Leg 95 (New
32. Kiene, R., R.S. Oremland, A. Catena, L. Miller, and D.G. Capone. 1986. Metabolism of reduced methylated sulfur compounds in anaerobic sediments and by a pure culture of an estuarine methanogen. Appl. Environ. Microbiol. 52: 1037-1045.
33. Oremland, R.S., and J.P. Zehr. 1986. Formation of methane and carbon dioxide from dimethylselenide in anoxic sediments and by a methanogenic bacterium. Appl. Environ. Microbiol. 52: 1031-1036.
34. Zehr, J.P., and R.S. Oremland. 1987. Reduction of selenate to selenide by sulfate-respiring bacteria: Experiments with cell suspensions and estuarine sediments. Appl. Environ. Microbiol. 53: 1365-1369.
35. Zehr, J.P., R.W. Harvey, R.S. Oremland, J.E. Cloern, L. George and
36. Smith, R.L. and R.S. Oremland. 1987. Big
37. Iversen, N., R.S. Oremland and M.J. Klug. 1987. Big
38. Fisher, C.R., J.J. Childress, R.S. Oremland and R.R. Bidigare. 1987. The importance of methane and thiosulfate in the metabolism of the bacterial symbionts of two deep-sea mussels. Marine Biology. 96: 59-71.
39. Oremland, R.S., L. Miller, and M. Whiticar. 1987. Sources and flux of natural gases from
40. Oremland, R.S. and D.G. Capone. 1988. Use of "specific inhibitors" in biogeochemistry and microbial ecology. Adv. Microbial Ecology 10, 285-383, K.C. Marshall (ed.), Plenum Publish.
41. Oremland, R.S. 1988. The biogeochemistry of methanogenic bacteria, p. 405-447. In The Biology of Anaerobic Microorganisms (A.J.B. Zehnder, ed.), J. Wiley & Sons, NY.
42. Oremland, R.S., J.E. Cloern, Z. Sofer, R.L. Smith, C.W. Culbertson, J. Zehr, L. Miller, B. Cole, R.W. Harvey, N. Iversen, M.J. Klug, D.J. Des Marais, and G. Rau. 1988. Microbial and biogeochemical processes in
43. Culbertson, C.W., F.E. Strohmaier, and R.S. Oremland. 1988. Acetylene as a substrate in the development of primordial microbial communities. Origins of Life and Evolution of the Biosphere. 18: 397-407.
44. Miller, L.G. and R.S. Oremland. 1988. Methane efflux from the pelagic regions of four lakes. Global Biogeochemical Cycles. 2: 269-277.
45. Oremland, R.S., M.J. Whiticar, F.E. Strohmaier, and R.P. Kiene. 1988. Bacterial formation of ethane from ethylated reduced sulfur compounds in anoxic sediments. Geochimica et Cosmochimica Acta. 52: 1895-1904.
46. Cicerone, R. and R.S. Oremland. 1988. Biogeochemical aspects of atmospheric methane. Global Biogeochemical Cycles. 2: 299-328.
47. Oremland, R.S. and G.M. King. 1989. Methanogenesis in hypersaline environments, p. 180-189. In Microbial Mats: Physiological Ecology of Benthic Microbial Communities, Y. Cohen and E. Rosenberg (eds.), Amer. Soc. Microbiol., Washington, D.C.
48. Oremland, R.S., R.P. Kiene,
49. Oremland, R.S. 1989. Present day activities of anaerobic bacteria and their relevance to future exobiological investigations. Adv. Space Res. 9: 127-136.
50. Oremland, R.S. , J.T. Hollibaugh, A.S. Maest, T.S. Presser, L. Miller, and C. Culbertson. 1989. Selenate reduction to elemental selenium by anaerobic bacteria in sediments and culture: Biogeochemical significance of a novel, sulfate-independent respiration. Appl. Environ. Microbiol. 55: 2333-2343.
51. Oremland, R.S. 1990. Nitrogen fixation dynamics of two diazotrophic communities in
52. Oremland, R.S., N.A. Steinberg, A.S. Maest, L.G. Miller, and J.T. Hollibaugh. 1990. Measurement of in situ rates of selenate removal by dissimilatory bacterial reduction in sediments. Env. Sci. Technol. 24: 1157-1164.
53.
54. Steinberg, N.A. and R.S. Oremland. 1990. Dissimilatory selenate reduction potentials in a diversity of sediment types. Appl. Environ. Microbiol. 56: 3550-3557.
55. Oremland, R.S., C.W. Culbertson, and M.R. Winfrey. 1991. Methyl mercury decomposition in sediments and bacterial cultures: Involvement of methanogens and sulfate reducers in oxidative demethylation. Appl. Environ. Microbiol. 57: 130-137.
56. Oremland, R.S., N.A. Steinberg, T.S. Presser, and L.G. Miller. 1991. In situ bacterial selenate reduction in the agricultural drainage systems of western
57. Steinberg, N.A., J. Switzer Blum, L. Hochstein, and R.S. Oremland. 1992. Nitrate is a preferred electron acceptor for growth of freshwater selenate-respiring bacteria. Appl. Environ. Microbiol. 58: 426-428.
58. Oremland, R.S., and C.W. Culbertson. 1992. Importance of methane oxidizing bacteria in the methane budget as revealed by the use of a specific inhibitor. Nature (
59. Oremland, R.S. and C.W. Culbertson. 1992. Evaluation of methyl fluoride and dimethylether as inhibitors of aerobic methane oxidation. Appl. Environ. Microbiol. 58: 2983-2992.
60. Luoma, S.N., C. Johns, N.S. Fischer, N.A. Steinberg, R.S. Oremland, and J.R. Reinfelder. 1992. Determination of selenium bioavailability to a benthic bivalve from particulate and solute pathways. Environ. Sci. Technol. 26: 485 - 491.
61. Miller, L.G., M.D. Coutlakis, R.S. Oremland, and B.B. Ward. 1993. Selective inhibition of ammonium oxidation and nitrification-linked N2O formation by methyl fluoride and dimethyl ether. Appl. Environ. Microbiol. 59: 2457 - 2464.
62. Miller, L.G., R. Jellison, R.S. Oremland, and C.W. Culbertson. 1993. Meromixis in
63. Oremland, R.S., L.G. Miller, C.W. Culbertson, S. Robinson, R.L. Smith, D. R. Lovley, M.J. Whiticar, G.M. King, et. al. 1993. Aspects of the biogeochemistry of methane in
64. Oremland, R.S., and L.G. Miller. 1993. Biogeochemistry of natural gases in three alkaline, permanently stratified (meromictic) lakes. In Future of Energy Gases, USGS Professional Paper (D. Howell editor), p. 439 - 452.
65. Oremland, R.S. 1994. Biogeochemical transformations of selenium in anoxic environments. p. 389 - 419 In Selenium in the Environment, W.T. Frankenberger Jr. and S. Benson (eds.), Marcel Dekker, NY.
66. Oremland, R.S., L.G. Miller, and F.E. Strohmaier. 1994. Degradation of methylbromide in anaerobic sediments. Env. Sci. & Technol. 28: 514 - 520.
67. Oremland, R.S., L.G. Miller, C.W. Culbertson, T.L. Connell, and L.L. Jahnke. 1994. Degradation of methyl bromide by methanotrophic bacteria in cell suspensions and soils. Appl. Environm. Microbiol. 60: 3640-3646.
68. Oremland, R.S. and D. R. Boone. 1994. Methanolobus taylorii sp nov, a new methylotrophic, estuarine methanogen. Int. J. System. Bacteriol. 44: 573 - 575.
69. Visscher, P.T. C.W. Culbertson, and R.S. Oremland. 1994. Degradation of trifluoroacetate in oxic and anoxic sediments. Nature 369: 729 - 731.
70. Oremland, R.S., J. Switzer Blum, C.W. Culbertson, P.T. Visscher, L.G. Miller, P. Dowdle, and F.E. Strohmaier. 1994. Isolation, growth and metabolism of an obligately anaerobic, selenate-respiring bacterium, strain SES-3. Appl. Environ. Microbiol. 60: 3011 - 3019.
71. Oremland, R.S., L.G. Miller, P. Dowdle, T. Connell, and T. Barkay. 1995. Methylmercury oxidative degradation potentials in contaminated and pristine sediments of the Carson River,
72. Laverman, A.M., J. Switzer Blum, J.K. Schaeffer, E.J. Philips, D.R. Lovley, and R.S. Oremland. 1995. Growth of strain SES-3 with arsenate and other diverse electron acceptors. Appl. Environ. Microbiol. 61: 3556 - 3561.
73. Oremland, R.S. 1996. Microbial degradation of atmospheric halocarbons. p. 85 - 102 in C. Murrell and D. Kelly (eds.), Microbiology of Atmospheric Trace Gases: Sources, Sinks, and Global Change Processes. NATO ASI series 1: Global Environmental Change,
74. Visscher, P.T., J.R. Guidetti, C.W. Culbertson, and R.S. Oremland. 1996. Dimethylsulfoniopropionate as a potential methanogenic substrate in
75. Oremland, R.S.1996. Microbial cycling of methyl bromide. p. 310 - 317 in Microbial Growth on C1 Compounds, M.E. Lidstrom and R.F. Tabita (ed), Kluwer Academic Publishers, Dordrecht, The Netherlands.
76. Oremland, R.S., D. Lonnergan, C.W. Culbertson, and D.R. Lovley. 1996. Microbial consumption of hydrochlorofluorocarbons (CHCl2F and CHCl2CF3) in soils and sediments. Appl. Environ. Microbiol. 62: 1818 - 1821.
77. Dowdle, P.R., A.M. Laverman, and R.S. Oremland. 1996. Bacterial dissimilatory reduction of arsenic (V) to arsenic (III) in anoxic sediments. Appl. Environ. Microbiol. 62: 1664 - 1669.
78. Matheson, L.J., J.R. Guidetti, P.T. Visscher, J.K. Schaefer, and R.S. Oremland. 1996. Summary of research results on bacterial degradation of trifluoroacetate (TFA), October, 1993 - October, 1995. USGS Open File Report 96-219.
79. Stolz, J.F., T. Gugliuzza, J. Switzer Blum, R. Oremland, and F.M. Murillo. 1997. Differential expression of cytochromes and reductases in Geospirillum barnesii strain SES3. Arch. Microbiol. 167: 1-5.
80. Connell, T.L., S.B. Joye, L.G. Miller, and R.S. Oremland. 1997. Bacterial oxidation of methyl bromide in
81. Matheson, L.J., L. Jahnke, and R.S. Oremland. 1997. Inhibition of methane oxidation in Methylococcus capsulatus with hydrochlorofluorocarbons and fluorinated methanes. Appl. Environ. Microbiol. 63: 2952 - 2956.
82. Miller, L.G., T. Connell, J. Guidetti, and R.S. Oremland. 1997. Bacterial oxidation of methyl bromide in agricultural soil. Appl. Environ. Microbiol. 63: 4346 – 4354.
83. Goodwin, K.D., M.E. Lidstrom, and R.S. Oremland. 1997.Degradation of brominated methanes by marine bacteria. Env. Sci. Technol. 31: 3188 – 3192.
84. Marvin DiPasquale, M., A. Oren, Y. Cohen, and R.S. Oremland. 1998. Radiotracer studies of bacterial methanogenesis in sediments from the Dead Sea and
85. Connell Hancock, T.L., A.M.
86. Dowdle, P.R., and R.S. Oremland. 1998. Microbial oxidation of elemental selenium in soils and bacterial cultures. Environ. Sci. Technol. 32: 3749 – 3755.
87. Marvin DiPasquale,M., D. and R.S. Oremland. 1998. Bacterial methyl mercury degradation in the Florida Everglades peat sediment. Environ. Sci. Technol. 32: 2556 – 2563.
88. Miller, L.G., C. Sasson, and R.S. Oremland. 1998. Difluoromethane: a new and improved inhibitor of methanotrophy. Appl. Environ. Microbiol. 64: 4357 – 4362.
89. Goodwin, K., J.K. Schaefer, and R.S. Oremland. 1998. Bacterial oxidation of dibromomethane, and methyl bromide in natural waters and enrichment cultures. Appl. Environ. Microbiol. 64: 4629 – 4636.
90. Switzer Blum, J., A. Burns Bindi, J. Buzzelli, J.F. Stolz, and R.S. Oremland. 1998. Bacillus arsenicoselenatis sp. nov., and Bacillus selenitireducens sp. nov. : two haloalkaliphiles from
91. Joye, S.B., T.L. Connell, L.G. Miller, R. Jellison, and R.S. Oremland. 1999. Oxidation of ammonia and methane in an alkaline, saline lake. Limnol. Oceanogr. 44: 178 - 188.
92. Stolz, J.F., D.J. Ellis, J. Switzer Blum, D. Ahmann, R.S. Oremland, and D.R. Lovley. 1999. Sulfurospirillum barnesii sp. nov., Sulfurospirillum arsenophilus sp. nov., and the Sulfurospirillum clade in the Epsilon Proteobacteria. Int. J. Systematic Bacteriol. 49: 1177 - 1180.
93. Stolz, J.F., and R.S. Oremland. 1999. Bacterial respiration of selenium and arsenic. FEMS Microbiology Reviews, 23: 615 - 627.
94. Oremland, R.S., J.S. Blum, A. Burns Bindi, P.R. Dowdle, M. Herbel, and
J.F. Stolz. 1999. Simultaneous reduction of nitrate and selenate by cell
suspensions of Se-respiring bacteria. Appl. Environ. Microbiol. 65: 4385 -
4392.
95. Schaefer, J.K., and R.S. Oremland. 1999. Oxidation of methyl halides by
the facultative methylotroph, strain IMB-1. Appl. Environ. Microbiol. 65: 5035
- 5041.
96. Oremland, R.S. 2000. Selenium. p. 238 – 247 in J. Lederberg (ed.), Encylopedia of Microbiology, vol. 4, Second Edition, Academic Press, N.Y.
97. Oremland, R.S., and J.F. Stolz. 2000. Dissimilatory reduction of selenate and arsenate in nature. p. 199 – 224 In D.R. Lovley (ed) Environmental Metal-Microbe Interaction, Amer. Soc. Microbiology Press,
98. Herbel, M.J., T.M. Johnson, R.S. Oremland, and T.D. Bullen. 2000.
Fractionation of selenium isotopes during bacterial respiratory reduction of
selenium oxyanions. Geochim. Cosmochim. Acta 64: 3701 - 3709.
99. Oremland, R.S., P.R. Dowdle, S. Hoeft, J.O. Sharp, J.K. Schaefer, L.G.
Miller, J. Switzer Blum, R.L. Smith, N.S. Bloom, and D. Wallschlaeger.
2000. Bacterial dissimilatory reduction of arsenate and sulfate in meromictic
100. Zobrist, J., P.R. Dowdle, J.A. Davis, and R.S. Oremland. 2000. Mobilization of
arsenite by dissimilatory reduction of adsorbed arsenate. Environ. Sci.
Technol. 34: 4747 - 4753.
101. Cytryn, E., D. Minz, R.S. Oremland, and Y. Cohen. 2000. Distribution and
diversity of Archaea corresponding to the limnological cycle of a hypersaline
stratified lake (
102. Oren, A., and R.S. Oremland. 2000. in R.B. Diversity of anaerobic halophilic
microorganisms.p. 96 – 105 In R.B.
Missions for Astrobiology III. Proc. SPIE (Int’l Soc. Optical Engin.) vol. 4137,
103. Schlekat, C.E., P.R. Dowdle, B-G. Lee, S.N. Luoma, and R.S. Oremland.
2000. Bioavailability of particle-associated Se (0) to the bivalve Potomacorbula amurensis. Environ. Sci. Technol. 34: 4504 - 4510.
104. Marvin-DiPasquale, M., J. Agee, C. McGowan, R.S. Oremland, D.
Krabbenhof, and C. Gilmour. 2000. Methyl-mercury degradation pathways:
a comparison among three mercury impacted ecosystems. Environ. Sci.
Technol. 34: 4908 - 4916.
106. Switzer Blum, J., J.F. Stolz, A. Oren, and R.S. Oremland. 2001.
Selenihalanaerobacter shriftii gen. nov., sp. nov., a halophilic anaerobe from Dead
Sea sediments that respires selenate. Arch. Microbiol. 175: 208 - 219.
107. Ehrlich, H.L., R.S. Oremland, and J.P. Zehr. 2001. Biogeochemical Cycles. Encyclopedia of Life Sciences, Macmillan Press,
108. Goodwin, K.D., R.K. Varner, P.M. Crill, and R.S. Oremland. 2001. Consumption of tropospheric levels of methyl bromide by C1-compound utilizing bacteria and comparison to saturation kinetics. Appl. Environ. Microbiol. 67: 5437 - 5443.
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| Environmental Issues | contamination and pollution |
| Environmental Issues | toxic trace elements |
| Atmosphere and Climate | greenhouse effect |

My research has focused upon the microbial metabolism of reduced gases (e.g., methane, ethane, methyl halides, acetylene), and of toxic elements including selenium, arsenic, tellurium, mercury, and antimony. Some of these elements are of interest in the realm of nanoscience. My field sites include extreme environments, especially soda lakes (Mono and Searles), hot springs, but also estuarine/marine, freshwater, or even animal gastrointestinal tracts. Any place where anaerobes may cavort and there exist oxic/anoxic physical interfaces.