Laurence G Miller (Former Employee)
Science and Products
Filter Total Items: 55
Isolation, growth, and metabolism of an obligately anaerobic, selenate- respiring bacterium, strain SES-3 Isolation, growth, and metabolism of an obligately anaerobic, selenate- respiring bacterium, strain SES-3
A gram-negative, strictly anaerobic, motile vibrio was isolated from a selenate-respiring enrichment culture. The isolate, designated strain SES-3, grew by coupling the oxidation of lactate to acetate plus CO2 with the concomitant reduction of selenate to selenite or of nitrate to ammonium. No growth was observed on sulfate or selenite, but cell suspensions readily reduced selenite to...
Authors
Ronald S. Oremland, Jodi S. Blum, Charles W. Culbertson, P.T. Visscher, Laurence G. Miller, P. Dowdle, F.E. Strohmaier
Meromixis in hypersaline Mono Lake, California. 2. Nitrogen fluxes Meromixis in hypersaline Mono Lake, California. 2. Nitrogen fluxes
Vertical fluxes of nitrogen were examined in hypersaline Mono Lake over a 9-yr period which encompassed the onset, persistence, and breakdown of meromixis. Under monomictic conditions, ammonia, which accumulates in the hypolimnion, is mixed into the euphotic region during autumn overturn. Following the onset of meromixis in 1983 and elimination of the winter period of holomixis, ammonia...
Authors
R. Jellison, Laurence G. Miller, John M. Melack, Gayle L. Dana
Aspects of the biogeochemistry of methane in Mono Lake and the Mono Basin of California Aspects of the biogeochemistry of methane in Mono Lake and the Mono Basin of California
Above-ambient levels of methane and higher hydrocarbons were detected in the atmosphere of the Mono Basin. These gases emanated from several different sources, including natural gas seeps (thermogenic and biogenic), and methanogenic activity in sediments. Seeps were distributed over nearly 33% of the lake bottom and were also present in the exposed former lakebed. They originated from...
Authors
Ronald S. Oremland, Laurence G. Miller, Charles Colbertson, S.W. Robinson, Richard L. Smith, Derek R. Lovley, Michael J. Whiticar, G. King, Ronald P. Kiene, Niels Iversen, Melinda Sargent
Selective inhibition of ammonium oxidation and nitrification-linked N2O formation by methyl fluoride and dimethyl ether Selective inhibition of ammonium oxidation and nitrification-linked N2O formation by methyl fluoride and dimethyl ether
Methyl fluoride (CH3F) and dimethyl ether (DME) inhibited nitrification in washed-cell suspensions of Nitrosomonas europaea and in a variety of oxygenated soils and sediments. Headspace additions of CH3F (10% [vol/vol]) and DME (25% [vol/vol]) fully inhibited NO2- and N2O production from NH4+ in incubations of N. europaea, while lower concentrations of these gases resulted in partial...
Authors
L.G. Miller, M.D. Coutlakis, R.S. Oremland, B.B. Ward
The geochemistry of methane in Lake Fryxell, an amictic, permanently ice-covered, antarctic lake The geochemistry of methane in Lake Fryxell, an amictic, permanently ice-covered, antarctic lake
The abundance and distribution of dissolved CH4 were determined from 1987-1990 in Lake Fryxell, Antarctica, an amictic, permanently ice-covered lake in which solute movement is controlled by diffusion. CH4 concentrations were 1 ??M in the upper oxic waters, but increased below the oxycline to 936 ??M at 18 m. Sediment CH4 was 1100 ??mol (1 sed)-1 in the 0-5 cm zone. Upward flux from the...
Authors
R. L. Smith, L.G. Miller, B.L. Howes
Meromixis in hypersaline Mono Lake, California. 3. Biogeochemical response to stratification and overturn Meromixis in hypersaline Mono Lake, California. 3. Biogeochemical response to stratification and overturn
Mono Lake is a terminal, saline lake that became ectogenically meromictic in 1982–1983 and remained stratified until November 1988. During this period, the monimolimnion remained anoxic and nearly isothermal, while the upper mixolimnion was well oxygenated and exhibited a seasonal thermal regime. Dissolved sulfide and methane increased in the monimolimnion as a result of diffusive flux...
Authors
Laurence G. Miller, R. Jellison, Ronald S. Oremland, Charles W. Culbertson
Science and Products
Filter Total Items: 55
Isolation, growth, and metabolism of an obligately anaerobic, selenate- respiring bacterium, strain SES-3 Isolation, growth, and metabolism of an obligately anaerobic, selenate- respiring bacterium, strain SES-3
A gram-negative, strictly anaerobic, motile vibrio was isolated from a selenate-respiring enrichment culture. The isolate, designated strain SES-3, grew by coupling the oxidation of lactate to acetate plus CO2 with the concomitant reduction of selenate to selenite or of nitrate to ammonium. No growth was observed on sulfate or selenite, but cell suspensions readily reduced selenite to...
Authors
Ronald S. Oremland, Jodi S. Blum, Charles W. Culbertson, P.T. Visscher, Laurence G. Miller, P. Dowdle, F.E. Strohmaier
Meromixis in hypersaline Mono Lake, California. 2. Nitrogen fluxes Meromixis in hypersaline Mono Lake, California. 2. Nitrogen fluxes
Vertical fluxes of nitrogen were examined in hypersaline Mono Lake over a 9-yr period which encompassed the onset, persistence, and breakdown of meromixis. Under monomictic conditions, ammonia, which accumulates in the hypolimnion, is mixed into the euphotic region during autumn overturn. Following the onset of meromixis in 1983 and elimination of the winter period of holomixis, ammonia...
Authors
R. Jellison, Laurence G. Miller, John M. Melack, Gayle L. Dana
Aspects of the biogeochemistry of methane in Mono Lake and the Mono Basin of California Aspects of the biogeochemistry of methane in Mono Lake and the Mono Basin of California
Above-ambient levels of methane and higher hydrocarbons were detected in the atmosphere of the Mono Basin. These gases emanated from several different sources, including natural gas seeps (thermogenic and biogenic), and methanogenic activity in sediments. Seeps were distributed over nearly 33% of the lake bottom and were also present in the exposed former lakebed. They originated from...
Authors
Ronald S. Oremland, Laurence G. Miller, Charles Colbertson, S.W. Robinson, Richard L. Smith, Derek R. Lovley, Michael J. Whiticar, G. King, Ronald P. Kiene, Niels Iversen, Melinda Sargent
Selective inhibition of ammonium oxidation and nitrification-linked N2O formation by methyl fluoride and dimethyl ether Selective inhibition of ammonium oxidation and nitrification-linked N2O formation by methyl fluoride and dimethyl ether
Methyl fluoride (CH3F) and dimethyl ether (DME) inhibited nitrification in washed-cell suspensions of Nitrosomonas europaea and in a variety of oxygenated soils and sediments. Headspace additions of CH3F (10% [vol/vol]) and DME (25% [vol/vol]) fully inhibited NO2- and N2O production from NH4+ in incubations of N. europaea, while lower concentrations of these gases resulted in partial...
Authors
L.G. Miller, M.D. Coutlakis, R.S. Oremland, B.B. Ward
The geochemistry of methane in Lake Fryxell, an amictic, permanently ice-covered, antarctic lake The geochemistry of methane in Lake Fryxell, an amictic, permanently ice-covered, antarctic lake
The abundance and distribution of dissolved CH4 were determined from 1987-1990 in Lake Fryxell, Antarctica, an amictic, permanently ice-covered lake in which solute movement is controlled by diffusion. CH4 concentrations were 1 ??M in the upper oxic waters, but increased below the oxycline to 936 ??M at 18 m. Sediment CH4 was 1100 ??mol (1 sed)-1 in the 0-5 cm zone. Upward flux from the...
Authors
R. L. Smith, L.G. Miller, B.L. Howes
Meromixis in hypersaline Mono Lake, California. 3. Biogeochemical response to stratification and overturn Meromixis in hypersaline Mono Lake, California. 3. Biogeochemical response to stratification and overturn
Mono Lake is a terminal, saline lake that became ectogenically meromictic in 1982–1983 and remained stratified until November 1988. During this period, the monimolimnion remained anoxic and nearly isothermal, while the upper mixolimnion was well oxygenated and exhibited a seasonal thermal regime. Dissolved sulfide and methane increased in the monimolimnion as a result of diffusive flux...
Authors
Laurence G. Miller, R. Jellison, Ronald S. Oremland, Charles W. Culbertson