M. Arntzen

Metabolic influence of core ciliates within the rumen microbiome

The paper investigates the metabolic roles of core ciliates in the rumen microbiome, finding that they contribute significantly to volatile fatty acid production and hydrogen metabolism, particularly in high methane-emitting animals.

Meta-omics analyses of dual substrate enrichment culturing of nitrous oxide respiring bacteria suggest that attachment and complex polysaccharide utilisation contributed to the ability of Cloacibacterium strains to reach dominance

The paper uses multi-omics analyses to identify genetic and phenotypic traits in Cloacibacterium strains that enable their dominance in dual substrate enrichment cultures.

N2O-respiring bacteria in biogas digestates for reduced agricultural emissions

This study shows that N2O-respiring bacteria can be effectively inoculated into agricultural soils using biogas digestates to reduce N2O emissions.

Microbiota-directed fibre activates both targeted and secondary metabolic shifts in the distal gut.

This study shows that a tailored acetylated galactoglucomannan fibre selectively activates butyrate-producing gut bacteria and triggers secondary metabolic shifts in neighboring microbial populations in pigs.

Synthesis of Glycoconjugates Utilizing the Regioselectivity of a Lytic Polysaccharide Monooxygenase

This study uses lytic polysaccharide monooxygenases to selectively oxidize non-reducing ends of oligosaccharides, enabling the synthesis of oxime-based glycoconjugates and demonstrating their potential biodegradability.

From proteins to polysaccharides: lifestyle and genetic evolution of Coprothermobacter proteolyticus.

This study reveals that Coprothermobacter proteolyticus acquires carbohydrate-active enzymes via horizontal gene transfer to degrade polysaccharides, explaining its dominance in thermophilic microbial communities.