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Deltaproteobacteria...
Deltaproteobacteria andSpirochaetes-Like Bacteria AreAbundant Putative MercuryMethylators in Oxygen-DeficientWater and Marine Particles in theBaltic Sea
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- Capo, Eric (författare)
- Swedish University of Agricultural Sciences,Sveriges lantbruksuniversitet,Umeå universitet,Institutionen för ekologi, miljö och geovetenskap,Department of Marine Biology, Institut de Ciències del Mar, CSIC, Barcelona, Spain,Umeå Univ, Dept Chem, Umeå, Sweden.;Swedish Univ Agr Sci, Dept Aquat Sci & Assessment, Uppsala, Sweden.,Umeå University, Sweden;Swedish university of agricultural sciences, Sweden,Institutionen för vatten och miljö,Department of Aquatic Sciences and Assessment,Umeå University, Department of Chemistry
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- Bravo, Andrea G. (författare)
- Institut de Ciències del Mar,Inst Ciencies Mar ICM CSIC, Barcelona, Spain.
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- Soerensen, Anne L. (författare)
- Naturhistoriska riksmuseet,Enheten för miljöforskning och övervakning,Swedish Museum Nat Hist, Dept Environm Res & Monitoring, Stockholm, Sweden.,Swedish Museum of Natural History, Sweden
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- Bertilsson, Stefan (författare)
- Swedish University of Agricultural Sciences,Sveriges lantbruksuniversitet,Institutionen för vatten och miljö,Department of Aquatic Sciences and Assessment,Swedish University of Agricultural Sciences, Department of Aquatic Sciences and Assessment
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- Pinhassi, Jarone (författare)
- Linnéuniversitetet,Institutionen för biologi och miljö (BOM),Vatten,Ctr Ecol & Evolut Microbial Model Syst EEMiS,Linnaeus University, Centre for Ecology and Evolution in Microbial Model Systems
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- Feng, Caiyan (författare)
- Umeå universitet,Kemiska institutionen,Umeå Univ, Dept Chem, Umeå, Sweden.,Umeå University, Sweden,Umeå University, Department of Chemistry
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- Andersson, Anders F. (författare)
- KTH,Genteknologi,Science for Life Laboratory, SciLifeLab,KTH Royal institute of technology, Sweden,KTH Royal Institute of Technology, Department of Gene Technology
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- Buck, Moritz (författare)
- Swedish University of Agricultural Sciences,Sveriges lantbruksuniversitet,Institutionen för vatten och miljö,Department of Aquatic Sciences and Assessment,Swedish University of Agricultural Sciences, Department of Aquatic Sciences and Assessment
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- Björn, Erik (författare)
- Umeå universitet,Kemiska institutionen,Umeå Univ, Dept Chem, Umeå, Sweden.,Umeå University, Sweden,Umeå University, Department of Chemistry
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(creator_code:org_t)
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- 2020-09-22
- 2020
- Engelska.
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Ingår i: Frontiers in Microbiology. - : Frontiers Media SA. - 1664-302X. ; , s. 1-11
- Relaterad länk:
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https://www.frontier...
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https://doi.org/10.3...
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https://pub.epsilon.... (primary) (Raw object) (free)
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https://urn.kb.se/re...
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https://doi.org/10.3...
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https://urn.kb.se/re...
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https://urn.kb.se/re...
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https://urn.kb.se/re...
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https://res.slu.se/i...
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Abstract
Ämnesord
Stäng
- Methylmercury (MeHg), a neurotoxic compound biomagnifying in aquatic food webs, can be a threat to human health via fish consumption. However, the compositionand distribution of the microbial communities mediating the methylation of mercury (Hg) to MeHg in marine systems remain largely unknown. In order to fill this knowledge gap, we used the Baltic Sea Reference Metagenome (BARM) dataset to study the abundance and distribution of the genes involved in Hg methylation (the hgcAB gene cluster). We determined the relative abundance of the hgcAB genes and their taxonomic identity in 81 brackish metagenomes that cover spatial,seasonal and redox variability in the Baltic Sea water column. The hgcAB genes were predominantly detected in anoxic water, but some hgcAB genes were alsodetected in hypoxic and normoxic waters. Phylogenetic analysis identified putative Hg methylators within Deltaproteobacteria, in oxygen-deficient water layers, but also Spirochaetes-like and Kiritimatiellaeota-like bacteria. Higher relative quantities of hgcAB genes were found in metagenomes from marine particles compared to free-living communities in anoxic water, suggesting that such particles are hotspot habitats for Hg methylators in oxygen-depleted seawater. Altogether, our work unveils the diversityof the microorganisms with the potential to mediate MeHg production in the BalticSea and pinpoint the important ecological niches for these microorganisms within themarine water column.
Ämnesord
- NATURVETENSKAP -- Geovetenskap och miljövetenskap -- Miljövetenskap (hsv//swe)
- NATURAL SCIENCES -- Earth and Related Environmental Sciences -- Environmental Sciences (hsv//eng)
- NATURVETENSKAP -- Biologi -- Mikrobiologi (hsv//swe)
- NATURAL SCIENCES -- Biological Sciences -- Microbiology (hsv//eng)
Nyckelord
- Mercury
- Baltic Sea
- Bacteria
- Methylation
- Oxygen deficiency
- particles
- Naturmiljö och människan
- Man and the environment
- Mikrobiologi
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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