Lucas J. Ustick

The paper catalogs diazotroph genomes and analyzes their distribution across environments, identifying freshwater and sedimentary ecosystems as key nitrogen-fixation reservoirs.

The paper identifies a diverse microbial reservoir in the ultrasmall ocean fraction, including nitrogen-fixing diazotrophs, with implications for global biogeochemical cycles.

The paper examines latitudinal diversity gradients in the ocean microbiome, finding they are not universal but vary by taxa and environmental factors.

This study analyzes the global diversity and distribution of Trichodesmium and UCYN-A diazotrophic cyanobacteria using nifH gene sequencing, revealing distinct microdiversity and environmental drivers.

The paper presents high-resolution global ocean metagenomes collected as part of the Bio-GO-SHIP program to study microbial community dynamics and their link to biogeochemical fluxes.