S. W. Polson

B12-dependent virioplankton demonstrate interseasonal dynamics and associate with a diversity of pelagic bacterioplankton

This study examines B12-dependent viral populations in pelagic ecosystems, showing seasonal dynamics and associations with diverse bacterioplankton.

Gallionellaceae pangenomic analysis reveals insight into phylogeny, metabolic flexibility, and iron oxidation mechanisms

This study uses pangenomic analysis of 103 Gallionellaceae genomes to reveal their phylogeny, metabolic flexibility, and iron oxidation mechanisms, identifying novel multiheme c-type cytochromes involved in extracellular electron uptake.

Metagenomic analysis of concrete bridge reveals a microbial community dominated by halophilic Bacteria and Archaea

The paper improves DNA extraction from concrete to enable shotgun metagenomic sequencing, revealing a halophilic microbial community dominated by Bacteria and Archaea with osmotic stress-related functions.

Spontaneously produced lysogenic phages are an important component of the soybean Bradyrhizobium mobilome

The paper identifies spontaneously produced lysogenic phages in soybean Bradyrhizobium strains and shows their potential role in horizontal gene transfer impacting soybean productivity.

Unraveling Fe(II)-oxidizing mechanisms in a facultative Fe(II) oxidizer Sideroxydans lithotrophicus ES-1 via culturing, transcriptomics, and RT-qPCR

This study investigates Fe(II) oxidation mechanisms in Sideroxydans lithotrophicus ES-1 using transcriptomics and RT-qPCR, identifying Cyc2 as the Fe(II) oxidase and linking Fe(II) oxidation to carbon fixation.

Validating the Cyc2 neutrophilic Fe oxidation pathway using meta-omics of Zetaproteobacteria iron mats at marine hydrothermal vents

The paper validates the Cyc2-based Fe oxidation pathway in Zetaproteobacteria using meta-omics data from marine hydrothermal vent iron mats.

CRISPR spacers indicate preferential matching of specific virioplankton genes

The paper analyzes CRISPR spacers from virioplankton metagenomes to identify preferential matching of specific viral genes, suggesting evolutionary pressure for effective viral defense.