A. Vardi

Cathepsin X is a conserved cell death protein involved in algal response to environmental stress

The paper identifies cathepsin X as a conserved cell death protein in algae involved in responses to environmental stress through transcriptome analysis and mutant studies.

Cell-to-cell heterogeneity drives host-virus coexistence in a bloom-forming alga

The paper identifies cell-to-cell heterogeneity in Emiliania huxleyi's response to viral infection, showing some cells resist while others are infected, contributing to host-virus coexistence.

Homing in on the rare virosphere reveals the native host of giant viruses

The paper uses single-cell metatranscriptomics to identify the native hosts of giant viruses in marine plankton communities, revealing a rare host-virus relationship and viral control of host population dynamics.

Phylogeny and biogeography of the algal DMS-releasing enzyme

The paper identifies and characterizes DLHs in diverse algae, revealing their broader taxonomic distribution and biogeographic patterns, with implications for the marine sulfur cycle.

Daily turnover of active giant virus infection during algal blooms revealed by single-cell transcriptomics

The paper uses single-cell transcriptomics to reveal daily viral infection turnover in algal blooms, showing consistent infection proportions and calcified infected cells.

Novel lipid biomarkers for algal resistance to viral infection in the ocean

The paper identifies novel lipid biomarkers in Emiliania huxleyi that correlate with resistance to viral infection in natural ocean blooms.

Open science resources from the Tara Pacific expedition across coral reef and surface ocean ecosystems

The paper describes the Tara Pacific expedition's sampling methodology and provides access to datasets from coral reef and surface ocean ecosystems.

Bacterial lifestyle switch in response to algal metabolites

This study identifies algal metabolites that drive a bacterial lifestyle switch from coexistence to pathogenicity, highlighting the role of dimethylsulfoniopropionate (DMSP) and benzoate in shaping microbial interactions.

Viral infection switches the balance between bacterial and eukaryotic recyclers of organic matter during algal blooms

The paper investigates how viral infection affects carbon cycling in algal blooms by altering the balance between bacterial and eukaryotic organic matter recyclers.

A cross biomes bacterial diversity shed light on ocean-atmosphere microbial transmission.

This study examines microbial diversity in ocean and atmosphere samples across the Atlantic and Pacific, finding greater atmospheric variability and distinct bacterial composition between ocean and atmosphere.

The ecological significance of extracellular vesicles in modulating host-virus interactions during algal blooms

The paper shows that extracellular vesicles from E. huxleyi enhance viral infection and prolong virus half-life in natural populations, affecting host-virus dynamics and microbial food webs.

Bistability in oxidative stress response determines the migration behavior of phytoplankton in turbulence

This study shows that bistable oxidative stress response in phytoplankton determines migration behavior in turbulence, with stress signaling triggering directional switches.

Viral infection of algal blooms leaves a halogenated footprint on the dissolved organic matter in the ocean

The paper investigates the metabolic changes in dissolved organic matter (DOM) caused by viral infection of algal blooms, identifying halogenated metabolites as biomarkers of viral-induced bloom demise.

Visualizing active viral infection reveals diverse cell fates in synchronized algal bloom demise

The paper quantifies active viral infection in algal blooms using a novel method called Virocell-FISH, revealing that only a quarter of Emiliania huxleyi cells are infected despite synchronized bloom demise.

Tracking infection dynamics at single-cell level reveals highly resolved expression programs of a large virus infecting algal blooms

The paper uses single-cell transcriptomics to track infection dynamics of a virus in algal blooms, identifying novel viral genetic programs and host transcriptome changes during infection.

Single-cell heterogeneity in the chloroplast redox state mediates acclimation to stress in a marine diatom

The paper measures single-cell chloroplast redox state heterogeneity in diatoms under oxidative stress, revealing subpopulations with distinct stress responses and cell fate outcomes.

A redox-regulated type III metacaspase controls cell death in a marine diatom

This study identifies a redox-regulated metacaspase in a marine diatom that promotes cell death and is sensitive to a diatom-specific infochemical.

Bacterial virulence against an oceanic bloom-forming phytoplankter is mediated by algal DMSP

The paper shows that DMSP from the alga Emiliania huxleyi enhances virulence of the bacterium Sulfitobacter D7, leading to algal bloom demise.

\"In plaque-mass spectrometry imaging\" reveals a major metabolic shift towards odd-chain fatty acid lipids induced by host-virus interactions

The paper uses plaque-MSI to reveal a metabolic shift towards odd-chain fatty acid lipids during host-virus interactions in Emiliania huxleyi.