K. McMahon

Time-series metagenomics reveals changing protistan ecology of a temperate dimictic lake

The paper analyzes time-series metagenomic data from Lake Mendota to study changes in protistan ecology, revealing shifts in community structure linked to invasive species and environmental factors.

A 20-year time-series of a freshwater lake reveals seasonal dynamics and environmental drivers of viral diversity, ecology, and evolution

The paper analyzes a 20-year viral time-series in a freshwater lake to uncover seasonal dynamics, environmental drivers, and evolutionary patterns of viral diversity and ecology.

Refinement of the "Candidatus Accumulibacter" Genus Based on a Metagenomic Analysis of Biological Nutrient Removal (BNR) Pilot-Scale Plants Operated with Reduced Aeration

This paper refines the 'Candidatus Accumulibacter' genus classification using genome-resolved metagenomics from low-aeration BNR plants, identifying a new species and improving phylogenetic understanding.

Social network centrality predicts dietary decisions in a wild bird population

The paper shows that socially central birds are more likely to consume novel foods, suggesting sociality influences dietary decisions in wild populations.

Viral impacts on microbial activity and biogeochemical cycling in a seasonally anoxic freshwater lake

The paper examines how seasonal anoxia affects viral and microbial biogeochemical cycling in a freshwater lake using metagenomic and metatranscriptomic data.

Signatures of Microbial Diversity at Multiple Scales of Resolution within Engineered Enrichment Communities

The paper examines microbial diversity signatures in lab-scale and full-scale phosphorus removal communities across multiple phylogenetic scales.

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.

Stratification in Microbial Communities with Depth and Redox Status in a Eutrophic Lake Across Two Years

This study examines microbial community changes in a eutrophic lake over two years, finding that redox status and depth drive shifts in microbial composition, with significant interannual variation at finer taxonomic levels.

Investigating the chemolithoautotrophic and formate metabolism of Nitrospira moscoviensis by constraint-based metabolic modeling and 13C-tracer analysis

This study reconstructs a genome-scale metabolic model of Nitrospira moscoviensis and validates it using proteomics, 13C-tracer, and metabolomic analysis to elucidate its autotrophic and formate metabolism.

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.

Expanded Phylogenetic Diversity and Metabolic Flexibility of Microbial Mercury Methylation

This study identifies a broader phylogenetic and metabolic diversity of microbial mercury methylators using genome-resolved metagenomics and metatranscriptomics.

acI Actinobacteria Assemble a Functional Actinorhodopsin with Natively-synthesized Retinal

This study demonstrates that acI Actinobacteria can synthesize retinal and assemble functional actinorhodopsins for proton pumping using genomic and heterologous expression analyses.

Cyanobacterial Growth on Municipal Wastewater Requires Low Temperatures

This study investigates how cyanobacteria grow on wastewater streams, finding that high temperatures reduce their viability due to membrane damage and photosynthetic disruption.

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.

Bacterial community composition and dynamics spanning five years in freshwater bog lakes

This study tracks bacterial community composition and dynamics over five years in eight freshwater bog lakes, revealing annual and seasonal trends and a core community of ubiquitous taxa.

Cohesion: A method for quantifying the connectivity of microbial communities

The paper introduces a metric called cohesion to quantify microbial community connectivity and shows it predicts community dissimilarity better than environmental data alone.