P. K. Weber

Arbuscular mycorrhiza convey significant plant carbon to a diverse hyphosphere microbial food web and mineral-associated organic matter

This study quantifies how arbuscular mycorrhizal fungi transfer plant carbon to soil microbial communities and mineral-associated organic matter.

Scarcity of fixed carbon transfer in a model microbial phototroph-heterotroph interaction

This study quantifies carbon transfer in a microbial alga-bacterium interaction, finding limited carbon flow and bacterial vitamin B12 synthesis despite algal lysis.

A toxic environment selects for specialist microbiome in poison frogs

This study shows that alkaloid exposure in poison frogs increases skin microbiome diversity and enables specific microbial adaptations to toxic environments.

Differential substrate affinity and catabolite repression enable preferential use of urea by ammonia-oxidizing bacteria

The paper shows that ammonia-oxidizing microorganisms use different regulatory strategies for ammonia and urea, enabling coexistence by minimizing competition.

Single cell carbon and nitrogen incorporation and remineralization profiles are uncoupled from phylogenetic groupings of diatom-associated bacteria

The paper quantifies single-cell carbon and nitrogen exchange between diatoms and bacteria, finding functional categories not linked to phylogeny.

A proton pump enhancing photosynthesis links phagocytosis to marine algae symbiogenesis

The paper identifies a proton pump enhancing photosynthesis in marine phytoplankton and links it to phagocytosis in symbiogenesis.

Ecology of active viruses and their bacterial hosts in frozen Arctic peat soil revealed with H218O stable isotope probing metagenomics

This study identifies active viral and bacterial populations in frozen Arctic peat soil using H218O SIP metagenomics, showing significant microbial activity and viral influence on carbon cycling during winter.

Influence of light on particulate organic matter utilization by attached and free-living marine bacteria

This study shows light affects particle degradation and C/N incorporation by marine bacteria, altering microbial community structure and metabolism.

Metagenomics reveals niche partitioning within the phototrophic zone of a microbial mat

The paper uses metagenomics to analyze microbial partitioning in hypersaline microbial mats, revealing genetic and functional diversity among microbial strains.