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Anaerobic mercury m...
Anaerobic mercury methylators inhabit sinking particles of oxic water columns
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- Capo, Eric (författare)
- Umeå universitet,Institutionen för ekologi, miljö och geovetenskap,Department of Marine Biology, Institut de Ciències del Mar, CSIC, Barcelona, Spain
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- Cosio, Claudia (författare)
- Université de Reims Champagne-Ardenne, Reims, France
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- Gascón Díez, Elena (författare)
- Department F.-A. Forel for Environmental and Aquatic Sciences, and Institute for Environmental Sciences, University of Geneva, Geneva, Switzerland; Direction générale de la santé, Secteur des produits chimiques, République et Canton de Genève, Switzerland
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- Loizeau, Jean-Luc (författare)
- Department F.-A. Forel for Environmental and Aquatic Sciences, and Institute for Environmental Sciences, University of Geneva, Geneva, Switzerland
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- Mendes, Elsa (författare)
- Departament de Biologia Marina i Oceanografia, Institut de Ciències del Mar, CSIC, Barcelona, Spain
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- Adatte, Thierry (författare)
- ISTE, Institut des Sciences de la Terre, Universit´e de Lausanne, GEOPOLIS, Lausanne, Switzerland
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- Franzenburg, Sören (författare)
- Institute of Clinical Molecular Biology, Kiel University and University Medical Center Schleswig-Holstein, Kiel, Germany
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- Bravo, Andrea G. (författare)
- Departament de Biologia Marina i Oceanografia, Institut de Ciències del Mar, CSIC, Barcelona, Spain
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(creator_code:org_t)
- Elsevier, 2023
- 2023
- Engelska.
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Ingår i: Water Research. - : Elsevier. - 0043-1354 .- 1879-2448. ; 229
- Relaterad länk:
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https://doi.org/10.1...
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https://umu.diva-por... (primary) (Raw object)
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- Increased concentration of mercury, particularly methylmercury, in the environment is a worldwide concern because of its toxicity in severely exposed humans. Although the formation of methylmercury in oxic water columns has been previously suggested, there is no evidence of the presence of microorganisms able to perform this process, using the hgcAB gene pair (hgc+ microorganisms), in such environments. Here we show the prevalence of hgc+ microorganisms in sinking particles of the oxic water column of Lake Geneva (Switzerland and France) and its anoxic bottom sediments. Compared to anoxic sediments, sinking particles found in oxic waters exhibited relatively high proportion of hgc+genes taxonomically assigned to Firmicutes. In contrast hgc+members from Nitrospirae, Chloroflexota and PVC superphylum were prevalent in anoxic sediment while hgc+ Desulfobacterota were found in both environments. Altogether, the description of the diversity of putative mercury methylators in the oxic water column expand our understanding on MeHg formation in aquatic environments and at a global scale.
Ämnesord
- NATURVETENSKAP -- Geovetenskap och miljövetenskap -- Miljövetenskap (hsv//swe)
- NATURAL SCIENCES -- Earth and Related Environmental Sciences -- Environmental Sciences (hsv//eng)
Nyckelord
- Anaerobic process
- Lake Geneva
- Mercury methylation
- Sinking particles
- hgcAB genes
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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