S. Bertilsson

The ecology of potentially pathogenic Vibrio spp. in a seagrass meadow ecosystem

This study examines Vibrio spp. abundance and ecology in Baltic Sea seagrass meadows, finding higher concentrations in water above unvegetated areas and on seagrass roots.

Identification of bacteria involved in non-sulfate based hydrogen sulfide production in an aquaculture environment

The paper identifies bacteria involved in non-sulfate-based hydrogen sulfide production in aquaculture systems and compares their activity with sulfate-reducing bacteria.

A matter of salt: global assessment of the effect of salt ionic composition as a driver of aquatic bacterial diversity

This study assesses how ionic composition affects microbial diversity in inland saline aquatic habitats, finding it explains more variability than salinity or geographic location.

The need for high-resolution gut microbiome characterization to design efficient strategies for sustainable aquaculture production

This study evaluates microbiota-directed fibers (MDFs) in Atlantic salmon diets, finding negligible effects on gut microbiome and host physiology, but identifying potential endogenous lactic acid bacteria for future MDF strategies.

The Salmon Microbial Genome Atlas enables novel insights into bacteria-host interactions via functional mapping

The paper presents the Salmon Microbial Genome Atlas, a collection of bacterial genomes from Atlantic salmon, and functionally characterizes key gut microbiota populations involved in nutrient processing and health.

Single-cell transcriptomics reveals functional insights into a non-model aquatic phytoflagellate and its metabolically linked bacterial community

This study uses single-cell transcriptomics to analyze Ochromonas triangulata and its associated bacterial community, identifying novel transcriptional states and metabolic shifts across growth phases.

Geographic population structure and distinct population dynamics of globally abundant freshwater bacteria

The paper examines geographic population structure and dynamics of freshwater bacteria using metagenomes and genomes, finding significant spatial differentiation and contrasting population dynamics across species.

Large-scale phylogenomics of aquatic bacteria reveal molecular mechanisms for adaptation to salinity

This study uses phylogenomic analysis of metagenome-assembled genomes to show that bacterial species rarely exist in multiple biomes and that cross-biome transitions involve proteome reorganization and gene content changes.

Genome-resolved analyses show an extensive diversification in key aerobic hydrocarbon-degrading enzymes across bacteria and archaea

A metagenomic view on fungal diversity in freshwater lakes

The paper analyzes metagenomic data from freshwater lakes to study fungal and Oomycota diversity and identifies environmental factors influencing their distribution.

Taxonomic and functional diversity of aquatic heterotrophs is sustained by dissolved organic matter chemodiversity

The paper investigates how dissolved organic matter (DOM) chemodiversity sustains taxonomic and functional diversity of aquatic heterotrophs across different model communities.

A consensus protocol for the recovery of mercury methylation genes from metagenomes

The paper presents a standardized protocol and bioinformatic pipeline for detecting and quantifying mercury methylation genes (hgcAB) in metagenomes, showing comparable efficiency between single and co-assembly approaches.

Abundance and expression of hgcAB genes and mercury availability jointly explain methylmercury formation in stratified brackish waters

The paper investigates how hgcA gene abundance and HgII-sulfide concentrations predict methylmercury formation in stratified brackish waters.

Out of the blue: the independent activity of sulfur-oxidizers and diatoms mediate the sudden color shift of a tropical river

The paper investigates the microbial and chemical processes in Rio Celeste, revealing that sulfur-oxidizers and diatoms drive the formation of light-scattering particles responsible for the river's sky-blue color.

Comprehensive analysis of chemical and biological problems associated with browning agents used in aquatic studies

This study compares the chemical and biological impacts of three browning agents on aquatic systems, finding that leonardite products have distinct effects compared to terrestrial-derived DOM.

Comprehensive dataset of shotgun metagenomes from stratified freshwater lakes and ponds

The paper presents a comprehensive dataset of 267 shotgun metagenomes from 41 stratified freshwater lakes and ponds to study microbial communities and their role in carbon cycling.

Freshwater Chlorobia exhibit metabolic specialization among cosmopolitan and endemic populations

The paper analyzes global metagenomes to study metabolic specialization of freshwater Chlorobia, revealing widespread distribution and niche-specific adaptations.

Energy efficiency and biological interactions define the core microbiome of deep oligotrophic groundwater

The paper identifies a core microbiome in deep oligotrophic groundwater, showing cooperative microbial communities adapted to low-energy environments through ecological traits and partnerships.

Streamlined freshwater bacterioplankton Nanopelagicales (acI) and Ca. Fonsibacter (LD12) thrive in functional cohorts

The paper investigates cooperation strategies in freshwater bacterioplankton, showing how different microbial genera thrive through ecotype or community-level interactions.

Marine snow as a habitat for microbial mercury methylators in the Baltic Sea

The paper identifies marine snow as a hotspot for mercury methylators in the Baltic Sea by analyzing metagenomic data from different environmental conditions.

Effects of long-term warming and enhanced nitrogen and sulfur deposition on microbial communities in a boreal peatland

This study examines the long-term effects of warming and nitrogen/sulfur deposition on boreal peatland microbial communities and finds additive rather than synergistic effects from combined perturbations.

Connections between freshwater carbon and nutrient cycles revealed through reconstructed population genomes

The paper links freshwater carbon and nutrient cycles by analyzing microbial population genomes and marker genes from two aquatic environments, showing co-occurrence of metabolic pathways and taxonomic patterns.

Mercury methylating microbial communities of boreal forest soils

This study identifies mercury methylating microbial communities in boreal forest soils using 16S rRNA and hgcA sequencing, revealing diverse taxa and non-methylating bacteria contributing to methylmercury formation.

Microzooplankton distribution in the Amundsen Sea Polynya (Antarctica) during an extensive Phaeocystis antarctica bloom

The paper examines microzooplankton communities in the Amundsen Sea Polynya during a Phaeocystis antarctica bloom, finding that dinoflagellates and ciliates dominate and graze on the bloom.

Ecophysiology of freshwater Verrucomicrobia inferred from metagenome-assembled genomes

This study recovers 19 Verrucomicrobia draft genomes from freshwater metagenomes to explore their ecophysiology and role in carbon cycling.

Contrasting patterns of genome-level diversity across distinct co-occurring bacterial populations

The paper examines genetic and ecological differentiation in freshwater bacterial populations using single-cell genomes and metagenomic data, finding ecologically distinct populations within some lineages but not others.

Metabolic Network Analysis and Metatranscriptomics Reveals Auxotrophies and Nutrient Sources of the Cosmopolitan Freshwater Microbial Lineage acI

Vitamin and amino acid auxotrophy in anaerobic consortia operating under methanogenic condition

The paper investigates microbial consortia under methanogenic conditions, revealing auxotrophy for vitamins and amino acids and complex interactions beyond traditional syntrophy.