ArticleMicrobiome2022
Microbial functional genes are driven by gradients in sediment stoichiometry, oxygen, and salinity across the Baltic benthic ecosystem.
Article in Microbiome, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers.
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18 citing papers in PubMed.
- Salinity-driven nonlinear responses of microbial functional genes in sediment biogeochemical cycling across a salt lake gradient.Applied and environmental microbiology · 2026Article
- Article
- Assessing the Ecological Roles of Resistomes within Microbial Communities in Antibiotic-contaminated Ecosystems.Microbial ecology · 2026Review
- Contrasting salinity regimes reshape microbe-DOM coupling and reduce recalcitrant dissolved organic carbon preservation in a salt lake.The ISME journal · 2026Article
- HIF-1 attenuates high-fiber diet-mediated proliferation and stemness of colonic epithelium.Gut microbes · 2025Article
- Anammox and denitrifying bacteria and their nitrogen removal potential in lake sediments mediated by environmental changes.Marine life science & technology · 2025Article
- Article
- Impacts of Emergency Treatments on Sediment Microbial Communities Following Sudden Thallium Contamination Events: A Microcosm Study.Microorganisms · 2025Article
- Environmental drivers of the resistome across the Baltic Sea.Microbiome · 2025Article
- Adaptation of Archaeal Communities to Summer Hypoxia in the Sediment of Bohai Sea.Ecology and evolution · 2025Article
- Functional stratification and enzymatic arrangement in microbial communities across a hypersaline depth gradient.Frontiers in microbiology · 2025Article
- Community Assembly Mechanisms of nirK- and nirS-type Denitrifying Bacteria in Sediments of Eutrophic Lake Taihu, China.Current microbiology · 2024Article
- Biodiversity of microorganisms in the Baltic Sea: the power of novel methods in the identification of marine microbes.FEMS microbiology reviews · 2024Review
- Talented microbes unlatch peatland carbon.Nature microbiology · 2024Article
- Biotic interactions between benthic infauna and aerobic methanotrophs mediate methane fluxes from coastal sediments.The ISME journal · 2024Article
- Long-Term Pollution Does Not Inhibit Denitrification and DNRA by Adapted Benthic Microbial Communities.Microbial ecology · 2023Article
- Linking prokaryotic genome size variation to metabolic potential and environment.ISME communications · 2023Article
- Geographic patterns and determinants of antibiotic resistomes in coastal sediments across complex ecological gradients.Frontiers in microbiology · 2022Article
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Authors and funding
6 authors.
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No grant is acknowledged in the PubMed record.
Abstract
backgroundMicroorganisms in the seafloor use a wide range of metabolic processes, which are coupled to the presence of functional genes within their genomes. Aquatic environments are heterogenous and often characterized by natural physiochemical gradients that structure these microbial communities potentially changing the diversity of functional genes and its associated metabolic processes. In this study, we investigated spatial variability and how environmental variables structure the diversity and composition of benthic functional genes and metabolic pathways across various fundamental environmental gradients. We analyzed metagenomic data from sediment samples, measured related abiotic data (e.g., salinity, oxygen and carbon content), covering 59 stations spanning 1,145 km across the Baltic Sea.
resultsThe composition of genes and microbial communities were mainly structured by salinity plus oxygen, and the carbon to nitrogen (C:N) ratio for specific metabolic pathways related to nutrient transport and carbon metabolism. Multivariate analyses indicated that the compositional change in functional genes was more prominent across environmental gradients compared to changes in microbial taxonomy even at genus level, and indicate functional diversity adaptation to local environments. Oxygen deficient areas (i.e., dead zones) were more different in gene composition when compared to oxic sediments.
conclusionsThis study highlights how benthic functional genes are structured over spatial distances and by environmental gradients and resource availability, and suggests that changes in, e.g., oxygenation, salinity, and carbon plus nitrogen content will influence functional metabolic pathways in benthic habitats. Video Abstract.
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