R. Amann

Seasonal recurrence and modular assembly of an Arctic pelagic marine microbiome

The paper examines seasonal dynamics of an Arctic pelagic microbiome, revealing modular patterns in taxonomic and functional composition across four years.

An ANI gap within bacterial species that advances the definitions of intra-species units

The paper identifies an ANI gap within bacterial species, proposing a more precise definition for intra-species diversity units.

Spatial heterogeneity in carbohydrates and their utilisation by microbial communities in the high North Atlantic

The paper examines spatial variations in carbohydrate composition and microbial utilisation in Arctic Atlantic waters during late summer, revealing distinct patterns of glycan distribution and microbial activity.

Visualizing and identifying selfish bacteria: a hunting guide

The paper provides a guide to identify and visualize selfish bacteria through methods to detect their unique polysaccharide processing mechanism in complex bacterial communities.

Towards estimating the number of strains that make up a natural bacterial population

The paper estimates the number of strains in a natural bacterial population using genomic and metagenomic data, finding up to 5,500 to 11,000 genomovars in one pond.

Variations in Atlantic water influx and sea-ice cover drive taxonomic and functional shifts in Arctic marine bacterial communities

This study shows how changes in Atlantic water influx and sea-ice cover affect Arctic marine bacterial communities, leading to shifts in taxonomic and functional composition.

Selfish bacteria are active throughout the water column of the ocean

The paper shows that selfish bacteria are active in deep ocean waters, suggesting that the return on investment for their energy-intensive strategy is sufficient to sustain them in these environments.

Highly diverse flavobacterial phages as mortality factor during North Sea spring blooms

The paper identifies diverse flavobacterial phages as potential mortality factors during North Sea spring blooms, showing their genomic diversity and environmental activity.

Quantifying fluorescent glycan uptake to elucidate strain-level variability in foraging behaviors of rumen bacteria

The paper uses fluorescent glycan uptake and genomic analyses to study strain-level differences in carbohydrate metabolism among rumen bacteria.

Candidatus Ethanoperedens, a thermophilic genus of archaea mediating the anaerobic oxidation of ethane

This paper cultivates and genomes a novel thermophilic archaeon, Candidatus Ethanoperedens, that oxidizes ethane and provides insights into its unique metabolic pathways.

Short-term changes in polysaccharide utilization mechanisms of marine bacterioplankton during a spring phytoplankton bloom

The paper tracks changes in polysaccharide utilization modes by heterotrophic bacteria during a spring phytoplankton bloom, showing shifts from selfish uptake to external hydrolysis as the bloom progresses.

In situ abundance and carbon fixation activity of distinct anoxygenic phototrophs in the stratified seawater lake Rogoznica

The paper quantifies contributions of distinct anoxygenic phototrophic populations to inorganic carbon fixation in Lake Rogoznica using radioisotope labeling and flow cytometry, finding green sulfur bacteria dominate this process.