H. Alexander

Intraspecific diversity in thermal performance determines phytoplankton ecological niche

The paper examines how intraspecific diversity in thermal response shapes phytoplankton ecological niches by growing 12 strains of Gephyrocapsa huxleyi under different temperatures and modeling their biogeography.

Microeukaryote metabolism across the western North Atlantic Ocean revealed through autonomous underwater profiling

The paper uses metatranscriptomic and metaproteomic analysis of plankton biomass collected across a 1,050 km transect in the western North Atlantic Ocean to reveal shifts in microeukaryote community composition and metabolic function across depth and environmental gradients.

Missing microbial eukaryotes and misleading meta-omic conclusions

The paper highlights issues with taxonomic annotation in microbial eukaryote meta-omic datasets and proposes clustering as a more accurate approach than alignment-based methods.

Vitamin B12 conveys a protective advantage to phycosphere-associated bacteria at high temperatures

This study shows that vitamin B12 provides a growth advantage to marine bacteria at high temperatures, with implications for microbial community dynamics under climate change.

Microbiomes of the bloom-forming alga, Phaeocystis globosa, are stable, consistently recruited communities with symbiotic and opportunistic modes

This study investigates the stability and function of microbiomes associated with Phaeocystis globosa blooms, revealing consistent bacterial communities and their impact on growth under different nutrient conditions.

Estimating global variation in the maximum growth rates of eukaryotic microbes from cultures and metagenomes via codon usage patterns

The paper estimates maximum growth rates of eukaryotic microbes using codon usage patterns from genomes and metagenomes, revealing differences in growth potential between prokaryotic and eukaryotic communities in marine environments.

Eukaryotic genomes from a global metagenomic dataset illuminate trophic modes and biogeography of ocean plankton

The paper introduces EukHeist, a pipeline for retrieving eukaryotic and prokaryotic MAGs from metagenomic data, and applies it to Tara Oceans data to identify ecological cohorts and host-microbe associations.

A phosphate starvation response gene (psr1-like) is present and expressed in Micromonas pusilla and other marine algae

The paper identifies a phosphate starvation response gene (psr1-like) in Micromonas pusilla and other marine algae, suggesting its role in P-deficiency responses.

VIRUS-HOST INFECTION DYNAMICS OF MARINE SINGLE-CELLED EUKARYOTES RESOLVED FROM METATRANSCRIPTOMICS

The paper uses metatranscriptomics to analyze active virus-host infections in marine single-celled eukaryotes, revealing diverse and dynamic interactions in two coastal environments.