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View article: Low-oxygen freshwaters as ecological niches for mercury methylators
Low-oxygen freshwaters as ecological niches for mercury methylators Open
Methylmercury (MeHg) is a hazardous neurotoxin, predominantly formed by microbial transformation of inorganic mercury in oxygen-depleted aquatic and terrestrial ecosystems. The ongoing deoxygenation of aquatic ecosystems due to global warm…
View article: Ideas and perspectives: Using meta-omics to unravel biogeochemical changes from cell to planetary scales
Ideas and perspectives: Using meta-omics to unravel biogeochemical changes from cell to planetary scales Open
Increased human impacts on Earth systems are radically altering biogeochemical cycles. While long-term environmental observatories and Earth System Models (ESMs) provide valuable insights into the mechanisms of nutrient dynamics, their per…
View article: Methylmercury formation in an ice-covered fjord system with redox stratified water column
Methylmercury formation in an ice-covered fjord system with redox stratified water column Open
Oxygen deficiency is increasing in coastal zones and the global ocean, potentially promoting methylmercury (MeHg) formation. Intensive work has been done to understand the factors controlling the methylation of Hg(II) to MeHg in open seas …
View article: Metagenomic analysis of sedimentary archives reveals ‘historical’ antibiotic resistance genes diversity increased over recent decades in the environment
Metagenomic analysis of sedimentary archives reveals ‘historical’ antibiotic resistance genes diversity increased over recent decades in the environment Open
Antibiotic Resistance Genes (ARGs) are widespread in freshwater environments and represent a concealed threat to public health and aquatic eco-system safety. To date, only a limited number of studies have investigated the historical distri…
View article: Inventory of ancient environmental DNA from sedimentary archives: locations, methods, and target taxa
Inventory of ancient environmental DNA from sedimentary archives: locations, methods, and target taxa Open
Locations of sampling sites from sedimentary ancient environmental DNA (aeDNA) studies. aeDNA is DNA that has degraded into short fragments, exhibits post-mortem damage signatures, and is recovered from a non-living tissue, organism, or en…
View article: A sedimentary DNA perspective about the influence of environmental and food‐web changes on the microbial eukaryotic community of Lake Biwa
A sedimentary DNA perspective about the influence of environmental and food‐web changes on the microbial eukaryotic community of Lake Biwa Open
The impacts of environmental change on Lake Biwa have been explored for decades, with water monitoring and palaeolimnological studies revealing how environmental forcing, including climate warming, eutrophication, water level manipulation …
View article: Microorganisms Involved in Methylmercury Demethylation and Mercury Reduction are Widely Distributed and Active in the Bathypelagic Deep Ocean Waters
Microorganisms Involved in Methylmercury Demethylation and Mercury Reduction are Widely Distributed and Active in the Bathypelagic Deep Ocean Waters Open
The ocean's mercury (Hg) content has tripled due to anthropogenic activities, and although the dark ocean (>200 m) has become an important Hg reservoir, concentrations of the toxic and bioaccumulative methylmercury (MeHg) are low and there…
View article: Transient social–ecological dynamics reveal signals of decoupling in a highly disturbed Anthropocene landscape
Transient social–ecological dynamics reveal signals of decoupling in a highly disturbed Anthropocene landscape Open
Understanding the transient dynamics of interlinked social–ecological systems (SES) is imperative for assessing sustainability in the Anthropocene. However, how to identify critical transitions in real-world SES remains a formidable challe…
View article: Historical trajectories of antibiotics resistance genes assessed through sedimentary DNA analysis of a subtropical eutrophic lake
Historical trajectories of antibiotics resistance genes assessed through sedimentary DNA analysis of a subtropical eutrophic lake Open
Investigating the occurrence of antibiotic-resistance genes (ARGs) in sedimentary archives provides opportunities for reconstructing the distribution and dissemination of historical (i.e., non-anthropogenic origin) ARGs. Although ARGs in f…
View article: Organic matter content and source is associated with the depth‐dependent distribution of prokaryotes in lake sediments
Organic matter content and source is associated with the depth‐dependent distribution of prokaryotes in lake sediments Open
Aquatic sediments harbour a diverse array of microorganisms that drive organic matter recycling, carbon sequestration and greenhouse gases (e.g., CO 2 , CH 4 , N 2 O) emissions. Although largely studied in water columns, vertical profiles …
View article: Detection of fish sedimentary <scp>DNA</scp> in aquatic systems: A review of methodological challenges and future opportunities
Detection of fish sedimentary <span>DNA</span> in aquatic systems: A review of methodological challenges and future opportunities Open
Environmental DNA studies have proliferated over the last decade, with promising data describing the diversity of organisms inhabiting aquatic and terrestrial ecosystems. The recovery of DNA present in the sediment of aquatic systems (sedD…
View article: Redox gradient shapes the abundance and diversity of mercury-methylating microorganisms along the water column of the Black Sea
Redox gradient shapes the abundance and diversity of mercury-methylating microorganisms along the water column of the Black Sea Open
In the global context of seawater deoxygenation triggered by climate change and anthropogenic activities, changes in redox gradients impacting biogeochemical transformations of pollutants, such as mercury, become more likely. Being the lar…
View article: Data for Manuscript Yan et al. "Organic matter drives the depth-dependent distribution of prokaryotes in lake sediments"
Data for Manuscript Yan et al. "Organic matter drives the depth-dependent distribution of prokaryotes in lake sediments" Open
16S OTU table and representative DNA sequences for each OTU
View article: Investigating the effects of anthropogenic stressors on lake biota using sedimentary <scp>DNA</scp>
Investigating the effects of anthropogenic stressors on lake biota using sedimentary <span>DNA</span> Open
Analyses of sedimentary DNA ( sed DNA) have increased exponentially over the last decade and hold great potential to study the effects of anthropogenic stressors on lake biota over time. Herein, we synthesise the literature that has applie…
View article: Homogenisation of water and sediment bacterial communities in a shallow lake (lake Balihe, China)
Homogenisation of water and sediment bacterial communities in a shallow lake (lake Balihe, China) Open
Planktonic and benthic bacterial communities hold central roles in the functioning of freshwater ecosystems and mediate key ecosystem services such as primary production and nutrient remineralisation. Although it is clear that such communi…
View article: Expression Levels of <i>hgcAB</i> Genes and Mercury Availability Jointly Explain Methylmercury Formation in Stratified Brackish Waters
Expression Levels of <i>hgcAB</i> Genes and Mercury Availability Jointly Explain Methylmercury Formation in Stratified Brackish Waters Open
Neurotoxic methylmercury (MeHg) is formed by microbial methylation of inorganic divalent Hg (HgII) and constitutes severe environmental and human health risks. The methylation is enabled by hgcA and hgcB genes, but it is not known if the a…
View article: Inventory of ancient environmental DNA from sedimentary archives: locations, methods, and target taxa
Inventory of ancient environmental DNA from sedimentary archives: locations, methods, and target taxa Open
Locations of sampling sites from sedimentary ancient environmental DNA (aeDNA) studies. aeDNA is DNA that has degraded into short fragments, exhibits post-mortem damage signatures, and is recovered from a non-living tissue, organism, or en…
View article: A consensus protocol for the recovery of mercury methylation genes from metagenomes
A consensus protocol for the recovery of mercury methylation genes from metagenomes Open
Mercury (Hg) methylation genes ( hgcAB ) mediate the formation of the toxic methylmercury and have been identified from diverse environments, including freshwater and marine ecosystems, Arctic permafrost, forest and paddy soils, coal‐ash a…
View article: A consensus protocol for the recovery of mercury methylation genes from metagenomes
A consensus protocol for the recovery of mercury methylation genes from metagenomes Open
Mercury methylation genes ( hgcAB) mediate the formation of the toxic methylmercury and have been identified from diverse environments, including freshwater and marine ecosystems, Arctic permafrost, forest and paddy soils, coal-ash amended…
View article: Abundance and expression of<i>hgcAB</i>genes and mercury availability jointly explain methylmercury formation in stratified brackish waters
Abundance and expression of<i>hgcAB</i>genes and mercury availability jointly explain methylmercury formation in stratified brackish waters Open
Neurotoxic methylmercury (MeHg) is formed by microbial methylation of inorganic divalent Hg (Hg II ) and constitutes severe environmental and human health risks. The methylation is enabled by hgcA and hgcB genes, but it is not known if the…
View article: Methylmercury formation is controlled by mercury speciation and abundance of Hg methylators in stratified brackish waters of Baltic Sea
Methylmercury formation is controlled by mercury speciation and abundance of Hg methylators in stratified brackish waters of Baltic Sea Open
Mercury (Hg) is a global pollutant of significant concern caused largely by its metalloorganic species methylmercury (MeHg).MeHg is a neurotoxin, which can bioaccumulate and biomagnify through food webs, posing threats to human health and …