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Ronald Oremland (Former Employee)

Science and Products

USGS scientist at a laboratory fume hood preparing experiments

Enhancement of Trichloroethene (TCE) Biodegradation in a Simulated Groundwater System

This laboratory-based study provides information for understanding enhancement of trichloroethene (TCE) biodegradation in a simulated groundwater system.
By
Ecosystems Mission Area, Environmental Health Program, Toxic Substances Hydrology
Enhancement of Trichloroethene (TCE) Biodegradation in a Simulated Groundwater System

Enhancement of Trichloroethene (TCE) Biodegradation in a Simulated Groundwater System

This laboratory-based study provides information for understanding enhancement of trichloroethene (TCE) biodegradation in a simulated groundwater system.
Learn More

Acetylene Consumption and Dechlorination by a Groundwater Microbial Enrichment Culture Acetylene Consumption and Dechlorination by a Groundwater Microbial Enrichment Culture

This study aimed to (1) enrich microbial acetylenotrophs from trichloroethylene (TCE) contaminated groundwater and (2) evaluate whether these enrichments could degrade TCE coupled to acetylene degradation. Acetylenotrophs are microorganisms that use acetylene as their carbon and energy source. TCE contaminated groundwater was collected from wells at the Naval Air Warfare Center (NAWC) in...
By
Water Resources Mission Area

Growth of cultured Picocystis strain ML in the presence of arsenic, and occurrence of arsenolipids in these Picocystis as well as biota and sediment from Mono Lake, California Growth of cultured Picocystis strain ML in the presence of arsenic, and occurrence of arsenolipids in these Picocystis as well as biota and sediment from Mono Lake, California

Mono Lake is a hypersaline soda lake rich in dissolved inorganic arsenic with its primary production currently dominated by Picocystis str. ML. We set out to determine if this picoplankter could metabolize inorganic arsenic, and in doing so form unusual arsenolipids (e.g., methylated arsinoyl ribosides) as reported in other saline ecosystems and by halophilic algae. We cultivated...
By
Ecosystems Mission Area, Contaminant Biology
No results found.
Filter Total Items: 120

Acetylenotrophic and diazotrophic Bradyrhizobium sp. strain I71 from TCE-contaminated soils Acetylenotrophic and diazotrophic Bradyrhizobium sp. strain I71 from TCE-contaminated soils

Abstract Acetylene (C2H2) is a molecule rarely found in nature, with very few known natural sources, but acetylenotrophic microorganisms can use acetylene as their primary carbon and energy source. As of 2018 there were 15 known strains of aerobic and anaerobic acetylenotrophs; however, we hypothesize there may yet be unrecognized diversity of acetylenotrophs in nature. This study...
Authors
Denise M. Akob, John M. Sutton, Timothy J. Bushman, Shaun Baesman, Edina Klein, Yesha Shrestha, Robert Andrews, Janna L. Fierst, Max Kolton, Sara Gushgari-Doyle, Ronald Oremland, John Freeman
By
Ecosystems Mission Area, Water Resources Mission Area, Contaminant Biology, Environmental Health Program, Toxic Substances Hydrology, Geology, Energy & Minerals Science Center, Reston Microbiology Laboratory

Got acetylene: A personal research retrospective Got acetylene: A personal research retrospective

In research, sometimes sheer happenstance and serendipity make for an unexpected discovery. Once revealed and if interesting enough, such a finding and its follow-up investigations can lead to advances by others that leave its originators ‘scooped’ and mulling about what next to do with their unpublished data, specifically what journals could it still be published in and be perceived as...
Authors
Ronald S. Oremland
By
Water Resources Mission Area

Syntrophotalea acetylenivorans sp. nov., a diazotrophic, acetylenotrophic anaerobe isolated from intertidal sediments Syntrophotalea acetylenivorans sp. nov., a diazotrophic, acetylenotrophic anaerobe isolated from intertidal sediments

A Gram-stain-negative, strictly anaerobic, non-motile, rod-shaped bacterium, designated SFB93T, was isolated from the intertidal sediments of South San Francisco Bay, located near Palo Alto, CA, USA. SFB93T was capable of acetylenotrophic and diazotrophic growth, grew at 22–37 °C, pH 6.3–8.5 and in the presence of 10–45 g l−1 NaCl. Phylogenetic analyses based on 16S rRNA gene sequencing...
Authors
Shaun Baesman, John M. Sutton, Janna L. Fierst, Denise M. Akob, Ronald S. Oremland
By
Ecosystems Mission Area, Water Resources Mission Area, Contaminant Biology, Environmental Health Program, Toxic Substances Hydrology, Earth Resources Observation and Science (EROS) Center , Geology, Energy & Minerals Science Center

Acetylene-fueled trichloroethene reductive dechlorination in a groundwater enrichment culture Acetylene-fueled trichloroethene reductive dechlorination in a groundwater enrichment culture

In aquifers, acetylene (C2H2) is a product of abiotic degradation of trichloroethene (TCE) catalyzed by in situ minerals. C2H2 can, in turn, inhibit multiple microbial processes including TCE dechlorination and metabolisms that commonly support dechlorination, in addition to supporting the growth of acetylenotrophic microorganisms. Previously, C2H2 was shown to support TCE reductive...
Authors
Sara Gushgari-Doyle, Ronald S. Oremland, Ray Keren, Shaun Baesman, Denise M. Akob, Jillian F. Banfield, Lisa Alvarez-Cohen
By
Water Resources Mission Area, Ecosystems Mission Area, Contaminant Biology, Environmental Health Program, Toxic Substances Hydrology, Reston Microbiology Laboratory

Arsenolipids in cultured Picocystis strain ML, and their occurrence in biota and sediment from Mono Lake, California Arsenolipids in cultured Picocystis strain ML, and their occurrence in biota and sediment from Mono Lake, California

Primary production in Mono Lake, a hypersaline soda lake rich in dissolved inorganic arsenic, is dominated by Picocystis strain ML. We set out to determine if this photoautotrophic picoplankter could metabolize inorganic arsenic and in doing so form unusual arsenolipids (e.g., arsenic bound to 2-O-methyl ribosides) as reported in other saline ecosystems and by halophilic algae. We...
Authors
Ronald A. Glabonjat, Jodi S. Blum, Laurence G. Miller, Samuel M. Webb, John F. Stolz, Kevin A. Francesconi, Ronald S. Oremland
By
Water Resources Mission Area

Halarsenatibacter Halarsenatibacter

No abstract available.
Authors
Ronald S. Oremland, Jodi S. Blum, John F. Stolz, Chad W Saltikov, Brian Lanoil
By
Water Resources Mission Area

Science and Products

USGS scientist at a laboratory fume hood preparing experiments

Enhancement of Trichloroethene (TCE) Biodegradation in a Simulated Groundwater System

This laboratory-based study provides information for understanding enhancement of trichloroethene (TCE) biodegradation in a simulated groundwater system.
By
Ecosystems Mission Area, Environmental Health Program, Toxic Substances Hydrology
Enhancement of Trichloroethene (TCE) Biodegradation in a Simulated Groundwater System

Enhancement of Trichloroethene (TCE) Biodegradation in a Simulated Groundwater System

This laboratory-based study provides information for understanding enhancement of trichloroethene (TCE) biodegradation in a simulated groundwater system.
Learn More

Acetylene Consumption and Dechlorination by a Groundwater Microbial Enrichment Culture Acetylene Consumption and Dechlorination by a Groundwater Microbial Enrichment Culture

This study aimed to (1) enrich microbial acetylenotrophs from trichloroethylene (TCE) contaminated groundwater and (2) evaluate whether these enrichments could degrade TCE coupled to acetylene degradation. Acetylenotrophs are microorganisms that use acetylene as their carbon and energy source. TCE contaminated groundwater was collected from wells at the Naval Air Warfare Center (NAWC) in...
By
Water Resources Mission Area

Growth of cultured Picocystis strain ML in the presence of arsenic, and occurrence of arsenolipids in these Picocystis as well as biota and sediment from Mono Lake, California Growth of cultured Picocystis strain ML in the presence of arsenic, and occurrence of arsenolipids in these Picocystis as well as biota and sediment from Mono Lake, California

Mono Lake is a hypersaline soda lake rich in dissolved inorganic arsenic with its primary production currently dominated by Picocystis str. ML. We set out to determine if this picoplankter could metabolize inorganic arsenic, and in doing so form unusual arsenolipids (e.g., methylated arsinoyl ribosides) as reported in other saline ecosystems and by halophilic algae. We cultivated...
By
Ecosystems Mission Area, Contaminant Biology
No results found.
Filter Total Items: 120

Acetylenotrophic and diazotrophic Bradyrhizobium sp. strain I71 from TCE-contaminated soils Acetylenotrophic and diazotrophic Bradyrhizobium sp. strain I71 from TCE-contaminated soils

Abstract Acetylene (C2H2) is a molecule rarely found in nature, with very few known natural sources, but acetylenotrophic microorganisms can use acetylene as their primary carbon and energy source. As of 2018 there were 15 known strains of aerobic and anaerobic acetylenotrophs; however, we hypothesize there may yet be unrecognized diversity of acetylenotrophs in nature. This study...
Authors
Denise M. Akob, John M. Sutton, Timothy J. Bushman, Shaun Baesman, Edina Klein, Yesha Shrestha, Robert Andrews, Janna L. Fierst, Max Kolton, Sara Gushgari-Doyle, Ronald Oremland, John Freeman
By
Ecosystems Mission Area, Water Resources Mission Area, Contaminant Biology, Environmental Health Program, Toxic Substances Hydrology, Geology, Energy & Minerals Science Center, Reston Microbiology Laboratory

Got acetylene: A personal research retrospective Got acetylene: A personal research retrospective

In research, sometimes sheer happenstance and serendipity make for an unexpected discovery. Once revealed and if interesting enough, such a finding and its follow-up investigations can lead to advances by others that leave its originators ‘scooped’ and mulling about what next to do with their unpublished data, specifically what journals could it still be published in and be perceived as...
Authors
Ronald S. Oremland
By
Water Resources Mission Area

Syntrophotalea acetylenivorans sp. nov., a diazotrophic, acetylenotrophic anaerobe isolated from intertidal sediments Syntrophotalea acetylenivorans sp. nov., a diazotrophic, acetylenotrophic anaerobe isolated from intertidal sediments

A Gram-stain-negative, strictly anaerobic, non-motile, rod-shaped bacterium, designated SFB93T, was isolated from the intertidal sediments of South San Francisco Bay, located near Palo Alto, CA, USA. SFB93T was capable of acetylenotrophic and diazotrophic growth, grew at 22–37 °C, pH 6.3–8.5 and in the presence of 10–45 g l−1 NaCl. Phylogenetic analyses based on 16S rRNA gene sequencing...
Authors
Shaun Baesman, John M. Sutton, Janna L. Fierst, Denise M. Akob, Ronald S. Oremland
By
Ecosystems Mission Area, Water Resources Mission Area, Contaminant Biology, Environmental Health Program, Toxic Substances Hydrology, Earth Resources Observation and Science (EROS) Center , Geology, Energy & Minerals Science Center

Acetylene-fueled trichloroethene reductive dechlorination in a groundwater enrichment culture Acetylene-fueled trichloroethene reductive dechlorination in a groundwater enrichment culture

In aquifers, acetylene (C2H2) is a product of abiotic degradation of trichloroethene (TCE) catalyzed by in situ minerals. C2H2 can, in turn, inhibit multiple microbial processes including TCE dechlorination and metabolisms that commonly support dechlorination, in addition to supporting the growth of acetylenotrophic microorganisms. Previously, C2H2 was shown to support TCE reductive...
Authors
Sara Gushgari-Doyle, Ronald S. Oremland, Ray Keren, Shaun Baesman, Denise M. Akob, Jillian F. Banfield, Lisa Alvarez-Cohen
By
Water Resources Mission Area, Ecosystems Mission Area, Contaminant Biology, Environmental Health Program, Toxic Substances Hydrology, Reston Microbiology Laboratory

Arsenolipids in cultured Picocystis strain ML, and their occurrence in biota and sediment from Mono Lake, California Arsenolipids in cultured Picocystis strain ML, and their occurrence in biota and sediment from Mono Lake, California

Primary production in Mono Lake, a hypersaline soda lake rich in dissolved inorganic arsenic, is dominated by Picocystis strain ML. We set out to determine if this photoautotrophic picoplankter could metabolize inorganic arsenic and in doing so form unusual arsenolipids (e.g., arsenic bound to 2-O-methyl ribosides) as reported in other saline ecosystems and by halophilic algae. We...
Authors
Ronald A. Glabonjat, Jodi S. Blum, Laurence G. Miller, Samuel M. Webb, John F. Stolz, Kevin A. Francesconi, Ronald S. Oremland
By
Water Resources Mission Area

Halarsenatibacter Halarsenatibacter

No abstract available.
Authors
Ronald S. Oremland, Jodi S. Blum, John F. Stolz, Chad W Saltikov, Brian Lanoil
By
Water Resources Mission Area
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