Xavier Mayali

Iron limitation alters diatom carbon flow through shifts in microbiome exometabolite consumption

The paper investigates how iron limitation affects carbon flow to bacteria by altering exometabolite consumption in a diatom-bacterial community.

Phycosphere-associated bacteria differentially impact accessibility of dust-bound iron to model diatom Phaeodactylum tricornutum

This study shows that specific bacteria in the diatom phycosphere enhance or suppress diatom growth under iron limitation by affecting dust-bound iron accessibility.

Oxidative stress reshapes diatom-microbiome interactions by shifting benefits from mutualistic to opportunistic bacteria

This study shows oxidative stress shifts diatom-bacteria interactions from mutualistic to opportunistic by altering nutrient transfer and bacterial resource acquisition strategies.

Marine bacteria cross-feeding controls the fate of extracellular glycolate carbon

The paper quantifies glycolate metabolism by marine bacteria and shows cross-feeding enhances carbon transfer efficiency.

An algicidal bacterium shapes the microbiome during outdoor diatom cultivation collapse

This study identifies a bacterium that contributes to diatom population collapse in outdoor algal ponds and explores its interactions with other microbes.

Spatially structured competition and cooperation alters algal carbon flow to bacteria

The paper investigates microbial interactions in algal systems, finding that cooperation, not just competition, significantly influences carbon flow from algae to bacteria.

Volatile Organic Compound Specialists in the Phycosphere

The paper identifies VOC-specialist bacteria in diatom cultures and shows their impact on carbon cycling and diatom productivity.

Coastal bacteria and protists assimilate viral carbon and nitrogen

The paper quantifies viral carbon and nitrogen assimilation by coastal bacteria and protists using isotope-labeled viruses and flow cytometry, showing biotic processes significantly enhance virus removal.