S. Peura

Network analysis uncovers associations in the turnover of C1 molecules in a winter lake

The paper uses network analysis to study C1 molecule turnover in an ice-covered lake, revealing both known and novel microbial associations and an upward carbon flow under cold low-light conditions.

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.

Biogenic methane cycling is controlled by microbial cohorts

The paper identifies new microbial players in methane cycling by combining network analysis with cultivated model communities from a lake time-series.

Global patterns and rates of habitat transitions across the eukaryotic tree of life

The paper investigates habitat transitions across eukaryotes, finding frequent salt barrier crossings in major lineages, with fungi showing high transition rates and suggesting non-saline habitats as ancestral.

16S rRNA gene sequences of Candidatus Methylumidiphilus (Methylococcales), a putative methanotrophic genus in lakes and ponds

The paper identifies two new 16S rRNA gene sequences from the putative methanotrophic genus Candidatus Methylumidiphilus, which can improve its detection in environmental samples.

Fungal community composition along a gradient of permafrost thaw

This study examines fungal community composition in thermokarst ponds across a permafrost thaw gradient using DNA sequencing and chemical analysis.

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.

Anaerobic oxidation of methane in sediments of a nitrate-rich, oligo-mesotrophic boreal lake

This study investigates anaerobic methane oxidation in lake sediments, finding that nitrate does not enhance AOM rates, while other electron acceptors like iron and sulfate may play a role.

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.

Novel autotrophic organisms contribute significantly to the internal carbon cycling potential of a boreal lake

The paper shows that autotrophic carbon fixation and internal carbon cycling are significant in a boreal lake, even below the euphotic zone, driven by chemolithotrophic organisms.

Decreased snow cover stimulates under ice primary producers, but impairs methanotrophic capacity

The paper shows that reduced snow cover increases light penetration, boosting primary production but reducing methanotrophic activity, leading to higher methane emissions.