Steven W. Wilhelm

This study shows microcystin levels in Microcystis cultures and natural blooms vary predictably with the diel light cycle, suggesting time-of-day should be standardized in monitoring efforts.

This study identifies three catalase-peroxidases in V. natriegens that enhance survival during stationary phase under hydrogen peroxide stress, but not during exponential growth.

This study analyzes DNA methylation in Kratosvirus quantuckense, identifying nine distinct methylation motifs and their genomic distribution.

The paper identifies viral shunt activity as a driver of seasonal subsurface oxygen maxima in the Sargasso Sea by linking elevated cyanophage activity and bacterial catabolism.

The study investigates the metabolic pathways of a toxic Planktothrix rubescens bloom using metagenomics and metabolomics, revealing the role of the ornithine-arginine cycle in its ecological success.

The paper samples and analyzes viruses in the Bermuda Atlantic Time Series to reveal population-level dynamics and functional differences, but not community-level changes over short timeframes.

The paper tests lysogeny in Microcystis blooms using mitomycin C and finds it ineffective for inducing prophage, suggesting standard protocols are unsuitable for freshwater cyanobacterial studies.

The paper shows that in the phosphorus-limited Sargasso Sea, different microbes uptake phosphorus at different times of day, supporting temporal niche partitioning.

This study examines how colony formation in Microcystis affects viral infection strategies, finding that colonies favor lysogeny while single cells experience more lytic infection.

This study shows that the time of day a virus infects an algal host affects viral particle production and bloom dynamics.

This study examines how Kratosvirus quantuckense infection disrupts the diel growth and division cycle of Aureococcus anophagefferens and increases biomass export.

The paper uses metatranscriptomics to show that declining ice cover in Lake Erie reduces viral community activity and richness in winter surface waters.

The paper expands the global RNA virome by five-fold, identifying new clades of RNA bacteriophages and revealing novel virus-host interactions.

This study re-examines the relationship between virus and microbial cell abundances in the ocean, finding that virus-to-prokaryote ratios vary nonlinearly and are better described by power-law functions than fixed ratios.