Microbial mercury methylation in aquatic environments: a critical review of published field and laboratory studies

O Regnell, CJ Watras - Environmental science & technology, 2018 - ACS Publications
Methylmercury (MeHg) is an environmental contaminant of concern because it biomagnifies
in aquatic food webs and poses a health hazard to aquatic biota, piscivorous wildlife and …

Understanding mercury methylation in the changing environment: Recent advances in assessing microbial methylators and mercury bioavailability

WL Tang, YR Liu, WY Guan, H Zhong, XM Qu… - Science of the Total …, 2020 - Elsevier
Methylmercury (MeHg) is a neurotoxin, mainly derived from microbial mercury methylation in
natural aquatic environments, and poses threats to human health. Polar regions and paddy …

Evaluation on the biomagnification or biodilution of trace metals in global marine food webs by meta-analysis

T Sun, H Wu, X Wang, C Ji, X Shan, F Li - Environmental pollution, 2020 - Elsevier
The transmission and accumulation of trace metals in marine food webs have a profound
influence on the structure and function of marine environment. In order to quantitatively …

Role of sulfur biogeochemical cycle in mercury methylation in estuarine sediments: a review

J Wang, J Dai, G Chen, F Jiang - Journal of Hazardous Materials, 2022 - Elsevier
Estuaries are sinks for mercury, in which the most toxic mercury form, neurotoxic
methylmercury (MeHg), is produced by mercury methylators and accumulates in estuarine …

Linking microbial activities and low-molecular-weight thiols to Hg methylation in biofilms and periphyton from high-altitude tropical lakes in the Bolivian Altiplano

S Bouchet, M Goñi-Urriza, M Monperrus… - … science & technology, 2018 - ACS Publications
The sources and factors controlling concentrations of monomethylmercury (MMHg) in
aquatic ecosystems need to be better understood. Here, we investigated Hg transformations …

Methylmercury uptake and degradation by methanotrophs

X Lu, W Gu, L Zhao, M Farhan Ul Haque… - Science …, 2017 - science.org
Methylmercury (CH3Hg+) is a potent neurotoxin produced by certain anaerobic
microorganisms in natural environments. Although numerous studies have characterized the …

Inhibition of methylmercury and methane formation by nitrous oxide in Arctic tundra soil microcosms

L Zhang, Y Yin, Y Sun, X Liang… - Environmental …, 2023 - ACS Publications
Climate warming causes permafrost thaw predicted to increase toxic methylmercury (MeHg)
and greenhouse gas [ie, methane (CH4), carbon dioxide (CO2), and nitrous oxide (N2O)] …

Contrasting Effects of Dissolved Organic Matter on Mercury Methylation by Geobacter sulfurreducens PCA and Desulfovibrio desulfuricans ND132

L Zhao, H Chen, X Lu, H Lin… - … science & technology, 2017 - ACS Publications
Natural dissolved organic matter (DOM) affects mercury (Hg) redox reactions and anaerobic
microbial methylation in the environment. Several studies have shown that DOM can …

Role of ester sulfate and organic disulfide in mercury methylation in peatland soils

CE Pierce, OS Furman, SL Nicholas… - … science & technology, 2022 - ACS Publications
We examined the composition and spatial correlation of sulfur and mercury pools in
peatland soil profiles by measuring sulfur speciation by 1s X-ray absorption near-edge …

Sulfurization of dissolved organic matter increases Hg–sulfide–dissolved organic matter bioavailability to a Hg-methylating bacterium

AM Graham, KT Cameron-Burr, HA Hajic… - … science & technology, 2017 - ACS Publications
Reactions of dissolved organic matter (DOM) with aqueous sulfide (termed sulfurization) in
anoxic environments can substantially increase DOM's reduced sulfur functional group …