ArticleApplied and environmental microbiology2015
Molybdenum Availability Is Key to Nitrate Removal in Contaminated Groundwater Environments.
Article in Applied and environmental microbiology, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 22 papers.
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Who cites it
22 citing papers in PubMed, 52 citations in OpenAlex.
- 17α-Hydroxyprogesterone Mediates Mo-Induced Sperm-Mediated Transgenerational Inheritance of Impaired Spermatogenesis.Environmental health perspectives · 2026Article
- Origin of replication discovery for environmentally isolatediScience · 2026Article
- Microbial community diversity and geochemistry inform bioremediation of molybdenum-contaminated groundwater.Applied and environmental microbiology · 2025Article
- Capturing Copper Single Atom in Proton Donor Stimulated O-End Nitrate Reduction.Advanced materials (Deerfield Beach, Fla.) · 2025Article
- Environmental stress mediates groundwater microbial community assembly.Nature microbiology · 2024Article
- Mixed waste contamination selects for a mobile genetic element population enriched in multiple heavy metal resistance genes.ISME communications · 2024Article
- Elucidating electrochemical nitrate and nitrite reduction over atomically-dispersed transition metal sites.Nature communications · 2023Article
- 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
- A Defined Medium for Cultivation and Exometabolite Profiling of Soil Bacteria.Frontiers in microbiology · 2022Article
- Deciphering Microbial Metal Toxicity Responses via Random Bar Code Transposon Site Sequencing and Activity-Based Metabolomics.Applied and environmental microbiology · 2021Article
- Systematic discovery of pseudomonad genetic factors involved in sensitivity to tailocins.The ISME journal · 2021Article
- Mechanism Across Scales: A Holistic Modeling Framework Integrating Laboratory and Field Studies for Microbial Ecology.Frontiers in microbiology · 2021Article
- Draft Genome Sequence ofMicrobiology resource announcements · 2020Article
- Characterization of a Metal-ResistantFrontiers in microbiology · 2020Article
- Nitrate-Utilizing Microorganisms Resistant to Multiple Metals from the Heavily Contaminated Oak Ridge Reservation.Applied and environmental microbiology · 2019Article
- Article
- Microbial Functional Gene Diversity Predicts Groundwater Contamination and Ecosystem Functioning.mBio · 2018Article
- Construction of Viable Soil Defined Media Using Quantitative Metabolomics Analysis of Soil Metabolites.Frontiers in microbiology · 2017Article
- Article
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Authors and funding
15 authors at 3 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
The concentrations of molybdenum (Mo) and 25 other metals were measured in groundwater samples from 80 wells on the Oak Ridge Reservation (ORR) (Oak Ridge, TN), many of which are contaminated with nitrate, as well as uranium and various other metals. The concentrations of nitrate and uranium were in the ranges of 0.1 μM to 230 mM and <0.2 nM to 580 μM, respectively. Almost all metals examined had significantly greater median concentrations in a subset of wells that were highly contaminated with uranium (≥126 nM). They included cadmium, manganese, and cobalt, which were 1,300- to 2,700-fold higher. A notable exception, however, was Mo, which had a lower median concentration in the uranium-contaminated wells. This is significant, because Mo is essential in the dissimilatory nitrate reduction branch of the global nitrogen cycle. It is required at the catalytic site of nitrate reductase, the enzyme that reduces nitrate to nitrite. Moreover, more than 85% of the groundwater samples contained less than 10 nM Mo, whereas concentrations of 10 to 100 nM Mo were required for efficient growth by nitrate reduction for two Pseudomonas strains isolated from ORR wells and by a model denitrifier, Pseudomonas stutzeri RCH2. Higher concentrations of Mo tended to inhibit the growth of these strains due to the accumulation of toxic concentrations of nitrite, and this effect was exacerbated at high nitrate concentrations. The relevance of these results to a Mo-based nitrate removal strategy and the potential community-driving role that Mo plays in contaminated environments are discussed.
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.