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Acetylene (C2H2) is a molecule rarely found in nature, with 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 hypothesized that there may be yet unrecognized diversity of acetylenotrophs in nature. In this study, we expanded this diversity by isolating an aerobic acetylenotroph, Bradyrhizobium sp. strain I71, from TCE-contaminated soils undergoing bioremediation. TCE-contaminated soils from the NASA Ames Research Center in California were used to establish soil microcosms with acetylene as the primary carbon substrate and acetylene uptake was tracked...
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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 West Trenton, New Jersey. Microbial acetylene uptake in groundwater samples was established by mixing the groundwater with a defined mineral medium to supply nutrients and providing acetylene as the sole electron donor and carbon source. The structure of the microbial community in those enrichments was characterized as shown by...


    map background search result map search result map Growth Characteristics of Syntrophotalea acetylenivorans, strain SFB93, sp. nov., a diazotrophic, acetylenotrophic anaerobe isolated from San Francisco Bay intertidal sediments Acetylene Consumption and Dechlorination by a Groundwater Microbial Enrichment Culture Data on the Enrichment and Isolation of the Acetylenotrophic and Diazotrophic Isolate Bradyrhizobium sp. strain I71 Data on the Enrichment and Isolation of the Acetylenotrophic and Diazotrophic Isolate Bradyrhizobium sp. strain I71 Acetylene Consumption and Dechlorination by a Groundwater Microbial Enrichment Culture Growth Characteristics of Syntrophotalea acetylenivorans, strain SFB93, sp. nov., a diazotrophic, acetylenotrophic anaerobe isolated from San Francisco Bay intertidal sediments