Sulfate Reduction Drives Elevated Methylmercury Formation in the Water Column of a Eutrophic Freshwater Lake

Sulfate Reduction Drives Elevated Methylmercury Formation in the Water Column of a Eutrophic Freshwater Lake

Mercury (Hg) contamination of aquatic food webs is controlled in part by the formation and accumulation of toxic and bioaccumulative methylmercury (MeHg). MeHg production is mediated by metabolically diverse microorganisms carrying the <i>hgcAB</i> gene pair, while the demethylation reac...

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Bibliographic Details
Main Author: Benjamin D. Peterson (9678659) (author)
Other Authors: Sarah E. Janssen (2887310) (author), Brett A. Poulin (3838039) (author), Jacob M. Ogorek (1247133) (author), Amber M. White (20955558) (author), Elizabeth A. McDaniel (9678662) (author), Robert A. Marick (9678671) (author), Grace J. Armstrong (20955561) (author), Nicholas D. Scheel (6714719) (author), Michael T. Tate (1572880) (author), David P. Krabbenhoft (1247130) (author), Katherine D. McMahon (9072317) (author)
Published: 2025
Subjects:
Biochemistry
Microbiology
Genetics
Molecular Biology
Ecology
Developmental Biology
Marine Biology
Inorganic Chemistry
Environmental Sciences not elsewhere classified
Biological Sciences not elsewhere classified
Chemical Sciences not elsewhere classified
reducing bacteria accounted
despite representing less
aquatic food webs
eutrophic freshwater lake
ambient mehg concentrations
driving mehg formation
eutrophic environments
mehg production
mehg formation
mehg demethylation
mehg ).
water column
two processes
transcriptionally active
situ </
several biotic
poorly characterized
key source
hgcab </
hgca </
gene pair
environmental factors
demethylation reaction
biogeochemical processes
bioaccumulative methylmercury
arsr </
abiotic processes
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