ArticleFrontiers in microbiology2015
The Effect of Natural Organic Matter on Mercury Methylation by Desulfobulbus propionicus 1pr3.
Article in Frontiers in microbiology, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers.
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Who cites it
10 citing papers in PubMed.
- Metagenomics reveals diverse community of putative mercury methylators across different biogeochemical niches in Sansha Yongle blue hole.Marine life science & technology · 2026Article
- Unveiling Hidden Mercury and Methylmercury Sources: The Role of Submarine Groundwater Discharge in Coastal Lagoons.Environmental science & technology · 2025Article
- Recent advance of microbial mercury methylation in the environment.Applied microbiology and biotechnology · 2024Review
- Potential for mercury methylation by Asgard archaea in mangrove sediments.The ISME journal · 2023Article
- Changes of mercury and methylmercury content and mercury methylation in Suaeda salsa soil under different salinity.Environmental geochemistry and health · 2022Article
- Genome-Resolved Metagenomics and Detailed Geochemical Speciation Analyses Yield New Insights into Microbial Mercury Cycling in Geothermal Springs.Applied and environmental microbiology · 2020Article
- Relative Reactivity and Bioavailability of Mercury Sorbed to or Coprecipitated with Aged Iron Sulfides.Environmental science & technology · 2019Article
- Microbial community activity in response to multiple contaminant exposure: a feasible tool for sediment quality assessment.Environmental monitoring and assessment · 2019Article
- Mercury in the Black Sea: New Insights From Measurements and Numerical Modeling.Global biogeochemical cycles · 2018Article
- Molecular composition of organic matter controls methylmercury formation in boreal lakes.Nature communications · 2017Article
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Authors and funding
7 authors.
Funding
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Abstract
Methylation of tracer and ambient mercury ((200)Hg and (202)Hg, respectively) equilibrated with four different natural organic matter (NOM) isolates was investigated in vivo using the Hg-methylating sulfate-reducing bacterium Desulfobulbus propionicus 1pr3. Desulfobulbus cultures grown fermentatively with environmentally representative concentrations of dissolved NOM isolates, Hg[II], and HS(-) were assayed for absolute methylmercury (MeHg) concentration and conversion of Hg(II) to MeHg relative to total unfiltered Hg(II). Results showed the (200)Hg tracer was methylated more efficiently in the presence of hydrophobic NOM isolates than in the presence of transphilic NOM, or in the absence of NOM. Different NOM isolates were associated with variable methylation efficiencies for either the (202)Hg tracer or ambient (200)Hg. One hydrophobic NOM, F1 HpoA derived from dissolved organic matter from the Florida Everglades, was equilibrated for different times with Hg tracer, which resulted in different methylation rates. A 5 day equilibration with F1 HpoA resulted in more MeHg production than either the 4 h or 30 day equilibration periods, suggesting a time dependence for NOM-enhanced Hg bioavailability for methylation.
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