A. Marchetti

Genotypic identification of polyclonal plasma cells in plasma cell dyscrasias shows an aberrant single-cell phenotype with clinical implications

The paper identifies polyclonal plasma cells in plasma cell dyscrasias using single-cell RNAseq and shows their pro-inflammatory status and clinical relevance through a derived signature.

Variability in the phytoplankton response to upwelling across an iron limitation mosaic within the California Current System

The paper examines how diatoms respond to upwelling in the California Current System under varying iron limitation conditions, finding that Fe-limited diatoms show reduced nutrient uptake and distinct gene expression patterns.

Microbial Respiration in Contrasting Ocean Provinces via High-Frequency Optical Assays

This study measures microbial respiration rates in different ocean regions using optical sensors, finding higher carbon export potential in the Atlantic compared to the Pacific.

Primary production dynamics during the decline phase of the North Atlantic annual spring bloom

This study examines primary production dynamics during the decline phase of the North Atlantic spring bloom, showing variability in phytoplankton size fractions and the impact of physical disturbances on production rates.

Molecular physiology of Antarctic diatom natural assemblages reveals multiple strategies contributing to their ecological success

The paper analyzes metatranscriptomic data from Antarctic diatoms to identify molecular strategies that contribute to their ecological success in varying environmental conditions.

Quantitative analysis of food web dynamics in a low export ecosystem

The paper quantifies food web dynamics in a low export ecosystem, finding microbial recycling dominates carbon flow with minimal export due to slow turnover and high detrital background.

Synechococcus nitrogen gene loss in iron-limited ocean regions

This study identifies two Synechococcus genomes from an iron-limited region that lack nitrate and nitrite assimilation genes, suggesting reliance on recycled nitrogen forms.

Proton-pumping rhodopsins in marine diatoms

This study identifies diatom rhodopsin as a light-driven proton pump localized to plastid membranes and suggests it contributes to a CO2-concentrating mechanism in diatoms.

Protistan plankton communities in the Galapagos Archipelago respond to changes in deep water masses resulting from the 2015/16 El Nino

The paper examines how protistan plankton communities in the Galapagos Archipelago change in response to the 2015/16 El Nino event, showing shifts in dinoflagellate dominance linked to changes in deep water masses.

Representative diatom and coccolithophore species exhibit divergent responses throughout simulated upwelling cycles

This study compares how diatoms and coccolithophores respond to simulated upwelling cycles, showing diatoms can rapidly adjust growth and nitrate assimilation under changing light and nutrient conditions.

Divergent gene expression among phytoplankton taxa in response to upwelling

This study examines gene expression changes in phytoplankton during simulated upwelling, showing diatoms exhibit distinct transcriptional responses that may aid in nitrogen competition.