Paul M. Berube

The paper identifies genetic traits of low-light adapted Prochlorococcus in the Equatorial Pacific, showing loss of nitrite assimilation and use of an iron-independent HemG isoform.

The paper shows that nitrogen-limited Prochlorococcus release more nitrite after a nitrate pulse compared to nitrogen-replete cells, suggesting a role in nitrite cycling under nitrogen limitation.

The paper introduces GRUMP, a database of global ocean microbial communities using universal primers, enabling direct comparison of taxonomic ratios across samples and domains.

The paper develops a sparse tensor decomposition method to analyze metatranscriptomes and identifies gene expression changes in marine cyanobacteria under nitrogen and iron scarcity.

ProSynTax provides a curated protein dataset and workflow to improve taxonomic classification of Prochlorococcus and Synechococcus in metagenomes with high phylogenetic resolution.

The paper shows that Prochlorococcus MED4 reduces nitrogen content in transcripts under nitrogen deprivation by using internal transcription start sites and shorter transcripts.