ArticleApplied and environmental microbiology2019
Nitrate-Utilizing Microorganisms Resistant to Multiple Metals from the Heavily Contaminated Oak Ridge Reservation.
Article in Applied and environmental microbiology, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers.
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Who cites it
14 citing papers in PubMed, 27 citations in OpenAlex.
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- Contrasting effects of glutamate and branched-chain amino acid metabolism on acid tolerance in aApplied and environmental microbiology · 2026Article
- The molecular basis of the synergistic toxicity of nickel and copper, common environmental co-contaminants.Applied and environmental microbiology · 2025Article
- Genomic and environmental controls on Castellaniella biogeography in an anthropogenically disturbed subsurface.Environmental microbiome · 2024Article
- Fitness factors impacting survival of a subsurface bacterium in contaminated groundwater.The ISME journal · 2024Article
- Mixed heavy metal stress induces global iron starvation response.The ISME journal · 2023Article
- Ecophysiological and genomic analyses of a representative isolate of highly abundant Bacillus cereus strains in contaminated subsurface sediments.Environmental microbiology · 2022Article
- Development of a Markerless Deletion Mutagenesis System in Nitrate-Reducing Bacterium Rhodanobacter denitrificans.Applied and environmental microbiology · 2022Article
- Deciphering Microbial Metal Toxicity Responses via Random Bar Code Transposon Site Sequencing and Activity-Based Metabolomics.Applied and environmental microbiology · 2021Article
- Microbial interaction with and tolerance of radionuclides: underlying mechanisms and biotechnological applications.Microbial biotechnology · 2021Review
- Mechanism Across Scales: A Holistic Modeling Framework Integrating Laboratory and Field Studies for Microbial Ecology.Frontiers in microbiology · 2021Article
- Characterization of a Metal-ResistantFrontiers in microbiology · 2020Article
- The Role of Synthetic Biology in Atmospheric Greenhouse Gas Reduction: Prospects and Challenges.Biodesign research · 2020Review
Corrections and comments
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Authors and funding
6 authors at 2 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Contamination of environments with nitrate generated by industrial processes and the use of nitrogen-containing fertilizers is a growing problem worldwide. While nitrate can be removed from contaminated areas by microbial denitrification, nitrate frequently occurs with other contaminants, such as heavy metals, that have the potential to impede the process. Here, nitrate-reducing microorganisms were enriched and isolated from both groundwater and sediments at the Oak Ridge Reservation (ORR) using concentrations of nitrate and metals (Al, Mn, Fe, Co, Ni, Cu, Cd, and U) similar to those observed in a contaminated environment at ORR. Seven new metal-resistant, nitrate-reducing strains were characterized, and their distribution across both noncontaminated and contaminated areas at ORR was examined. While the seven strains have various pH ranges for growth, carbon source preferences, and degrees of resistance to individual and combinations of metals, all were able to reduce nitrate at similar rates both in the presence and absence of the mixture of metals found in the contaminated ORR environment. Four strains were identified in groundwater samples at different ORR locations by exact 16S RNA sequence variant analysis, and all four were found in both noncontaminated and contaminated areas. By using environmentally relevant metal concentrations, we successfully isolated multiple organisms from both ORR noncontaminated and contaminated environments that are capable of reducing nitrate in the presence of extreme mixed-metal contamination.
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