Research Topics
| R S OremlandSummaryAffiliation: U.S. Geological Survey Country: USA Publications
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Publications
A microbial arsenic cycle in a salt-saturated, extreme environmentRonald S Oremland
U S Geological Survey, ms 480, 345 Middlefield Road, Menlo Park, CA 94025, USA
Science 308:1305-8. 2005..Hence, a full biogeochemical cycle of arsenic occurs in Searles Lake, driven in part by inorganic electron donors...- Microbial degradation of hydrochlorofluorocarbons (CHCl2F and CHCl2CF3) in soils and sedimentsR S Oremland
U S Geological Survey, Menlo Park, California 94025, USA
Appl Environ Microbiol 62:1818-21. 1996..No degradation of HCFC-123 was observed in aerobic soils. In some experiments, HCFCs were degraded at low (parts per billion) concentrations, raising the possibility that bacteria in nature remove HCFCs from the atmosphere... - The microbial arsenic cycle in Mono Lake, CaliforniaRonald S Oremland
US Geological Survey, Menlo Park, CA 94025, USA
FEMS Microbiol Ecol 48:15-27. 2004.... - Acetylene as fast food: implications for development of life on anoxic primordial Earth and in the outer solar systemRonald S Oremland
US Geological Survey, Menlo Park, California 94025, USA
Astrobiology 8:45-58. 2008..Furthermore, the presence of acetylene in the atmosphere of a planet or planetoid could possibly represent evidence for an extraterrestrial anaerobic ecosystem... - Whither or wither geomicrobiology in the era of 'community metagenomics'Ronald S Oremland
US Geological Survey, 345 Middlefield Road, m s 480, Menlo Park, California 94025, USA
Nat Rev Microbiol 3:572-8. 2005..We now call for more balanced, hypothesis-driven research efforts that couple metagenomics with classic approaches... - Structural and spectral features of selenium nanospheres produced by Se-respiring bacteriaRonald S Oremland
Water Resources Division, U S Geological Survey, Menlo Park, California 94025, USA
Appl Environ Microbiol 70:52-60. 2004..These arrangements probably reflect a diversity of enzymes involved in the dissimilatory reduction that are subtly different in different microbes. Remarkably, these conditions cannot be achieved by current methods of chemical synthesis... - The ecology of arsenicRonald S Oremland
U S Geological Survey, Mailstop 480, 345 Middlefield Road, Menlo Park, CA 94025, USA
Science 300:939-44. 2003..Here we review what is known about arsenic-metabolizing bacteria and their potential impact on speciation and mobilization of arsenic in nature... - Simultaneous reduction of nitrate and selenate by cell suspensions of selenium-respiring bacteriaR S Oremland
U S Geological Survey, Menlo Park, California 94025, USA
Appl Environ Microbiol 65:4385-92. 1999..Results with (75)Se-selenate tracer show that these organisms can lower ambient Se(VI) concentrations to levels in compliance with new regulations proposed for release of selenium oxyanions into the environment... - Anaerobic oxidation of arsenite in Mono Lake water and by a facultative, arsenite-oxidizing chemoautotroph, strain MLHE-1Ronald S Oremland
U S Geological Survey, Menlo Park, California 94025, USA
Appl Environ Microbiol 68:4795-802. 2002..analysis of its 16S ribosomal DNA sequence placed strain MLHE-1 within the haloalkaliphilic Ectothiorhodospira of the gamma-PROTEOBACTERIA: Arsenite oxidation has never been reported for any members of this subgroup of the PROTEOBACTERIA:.. - Effects of imposed salinity gradients on dissimilatory arsenate reduction, sulfate reduction, and other microbial processes in sediments from two California soda lakesT R Kulp
U S Geological Survey, Water Resources Division, 345 Middlefield Rd, Mailstop 480, Menlo Park, CA 94025, USA
Appl Environ Microbiol 73:5130-7. 2007..Experiments with borate-amended Mono Lake slurries suggest that the notably high (0.46 molal) concentration of borate in the Searles Lake brine was responsible for the exclusion of sulfate reducers from that ecosystem... - Arsenic(III) fuels anoxygenic photosynthesis in hot spring biofilms from Mono Lake, CaliforniaT R Kulp
U S Geological Survey USGS, Menlo Park, CA 94025, USA
Science 321:967-70. 2008..Production of As(V) by anoxygenic photosynthesis probably opened niches for primordial Earth's first As(V)-respiring prokaryotes... - Enrichment and isolation of Bacillus beveridgei sp. nov., a facultative anaerobic haloalkaliphile from Mono Lake, California, that respires oxyanions of tellurium, selenium, and arsenicS M Baesman
U S Geological Survey, Menlo Park, CA 94025, USA
Extremophiles 13:695-705. 2009..Strain MLTeJB is a low G + C Gram positive motile rod with pH, sodium, and temperature growth optima at 8.5-9.0, 0.5-1.5 M, and 40 degrees C, respectively. The epithet Bacillus beveridgei strain MLTeJB(T) is proposed... - Dissimilatory arsenate and sulfate reduction in sediments of two hypersaline, arsenic-rich soda lakes: Mono and Searles Lakes, CaliforniaT R Kulp
US Geological Survey, Menlo Park, CA 94025, USA
Appl Environ Microbiol 72:6514-26. 2006.... - Selenihalanaerobacter shriftii gen. nov., sp. nov., a halophilic anaerobe from Dead Sea sediments that respires selenateJ S Blum
US Geological Survey, 345 Middlefield Road, ms 480, Menlo Park, CA 94025, USA
Arch Microbiol 175:208-19. 2001..We propose the name Selenihalanaerobacter shriftii. Type strain is strain DSSe-1 (ATCC accession number BAA-73)... - Ecophysiology of "Halarsenatibacter silvermanii" strain SLAS-1T, gen. nov., sp. nov., a facultative chemoautotrophic arsenate respirer from salt-saturated Searles Lake, CaliforniaJodi Switzer Blum
U S Geological Survey, ms 480, 345 Middlefield Rd, Menlo Park, CA 94025, USA
Appl Environ Microbiol 75:1950-60. 2009.... - Redox transformations of arsenic oxyanions in periphyton communitiesThomas R Kulp
Water Resources Division, U.S. Geological Survey, Menlo Park, California 94025, USA
Appl Environ Microbiol 70:6428-34. 2004..This assumption was reinforced by experiments with estuarine samples of Cladophora sericea in which we detected a similar capacity for anaerobic As(V) reduction and aerobic As(III) oxidation... - Dissimilatory arsenate reduction with sulfide as electron donor: experiments with mono lake water and Isolation of strain MLMS-1, a chemoautotrophic arsenate respirerShelley E Hoeft
U.S. Geological Survey, Menlo Park, California 94025, USA
Appl Environ Microbiol 70:2741-7. 2004..88 to 90% similarity) but more closely related (97%) to unidentified sequences amplified previously from Mono Lake. However, strain MLMS-1 does not grow with sulfate as its electron acceptor... - Electricity generation by anaerobic bacteria and anoxic sediments from hypersaline soda lakesLaurence G Miller
U S Geological Survey USGS, ms 480, 345 Middlefield Rd, Menlo Park, CA 94025, USA
Extremophiles 12:837-48. 2008..More power was produced in sediment from Mono Lake than from Searles Lake, however microbial fuel cells could detect low levels of metabolism operating under moderate and extreme conditions of salt stress... - Bioreactors for removing methyl bromide following contained fumigationsLaurence G Miller
U S Geological Survey, Mail Stop 465, 345 Middlefield Road, Menlo Park, California 94025, USA
Environ Sci Technol 37:1698-704. 2003..Bioreactors such as these can therefore be used to remove large quantities of contaminant MeBr, which opens the possibility of biodegradation as a practical means for its disposal... - Arsenic, microbes and contaminated aquifersRonald S Oremland
U S Geological Survey, Menlo Park, CA 94025, USA
Trends Microbiol 13:45-9. 2005..The mobilization of arsenic into the aqueous phase is the first crucial step in a process that eventually leads to human arsenicosis. Increasing evidence suggests that this is a microbiological phenomenon... - Formation of tellurium nanocrystals during anaerobic growth of bacteria that use Te oxyanions as respiratory electron acceptorsShaun M Baesman
S Geological Survey, Menlo Park, California 94025, USA
Appl Environ Microbiol 73:2135-43. 2007..The use of microorganisms to generate Te nanomaterials may be an alternative for bench-scale syntheses. Additionally, they may also generate products with unique properties unattainable by conventional physical/chemical methods... - Large carbon isotope fractionation associated with oxidation of methyl halides by methylotrophic bacteriaL G Miller
United States Geological Survey, Menlo Park, CA 94025, USA
Proc Natl Acad Sci U S A 98:5833-7. 2001..These observations are of potential biogeochemical significance in the application of stable carbon isotope ratios to constrain the tropospheric budgets for the ozone-depleting halocarbons, methyl bromide and methyl chloride... - Alkalilimnicola ehrlichii sp. nov., a novel, arsenite-oxidizing haloalkaliphilic gammaproteobacterium capable of chemoautotrophic or heterotrophic growth with nitrate or oxygen as the electron acceptorShelley E Hoeft
U S Geological Survey, 345 Middlefield Road, ms 480, Menlo Park, CA 94025, USA
Int J Syst Evol Microbiol 57:504-12. 2007..The type strain is MLHE-1(T) (=DSM 17681(T)=ATCC BAA-1101(T)). Aspects of the annotated full genome of Alkalilimnicola ehrlichii are discussed in the light of its physiology... - Coupled arsenotrophy in a hot spring photosynthetic biofilm at Mono Lake, CaliforniaShelley E Hoeft
U S Geological Survey, Menlo Park, CA 94025, USA
Appl Environ Microbiol 76:4633-9. 2010..Collectively, these results demonstrate close linkages of these arsenic redox processes occurring within these biofilms... - Arsenic and selenium in microbial metabolismJohn F Stolz
Department of Biological Sciences, Duquesne University, Pittsburgh, Pennsylvania 15282, USA
Annu Rev Microbiol 60:107-30. 2006..This review highlights recent advances in ecology, biochemistry, and molecular biology and provides a prelude to the impact of genomics studies... - Leisingera methylohalidivorans gen. nov., sp. nov., a marine methylotroph that grows on methyl bromideJeffra K Schaefer
Cook College, Rutgers University, New Brunswick, NJ 08901-8520, USA
Int J Syst Evol Microbiol 52:851-9. 2002..It is proposed that strain MB2T (= ATCC BAA-92T = DSM 14336T) be designated Leisingera methylohalidivorans gen. nov., sp. nov.... - The respiratory arsenate reductase from Bacillus selenitireducens strain MLS10Eman Afkar
Department of Biological Sciences, Duquesne University, Pittsburgh, PA 15282, USA
FEMS Microbiol Lett 226:107-12. 2003.... - Aminobacter ciceronei sp. nov. and Aminobacter lissarensis sp. nov., isolated from various terrestrial environmentsIan R McDonald
Department of Biological Sciences, University of Warwick, Coventry CV4 7AL, UK
Int J Syst Evol Microbiol 55:1827-32. 2005..nov. (type strain IMB-1(T)=ATCC 202197(T)=CIP 108660(T)=CCUG 50580(T); strains ER2 and C147) and Aminobacter lissarensis sp. nov. (type strain CC495(T)=NCIMB 13798(T)=CIP 108661(T)=CCUG 50579(T)) are proposed...