Pok Man Leung

This study shows that bacterial fermentation, not respiration, dominates in upland soils during hypoxia, challenging the assumption that respiration is the primary metabolic strategy.

This study identifies a minimal bacterial consortium that efficiently drives nitritation at acidic pH through metabolic interactions and stress adaptation mechanisms.

The paper examines Arthrobacter strains in Antarctic soils and finds evidence of endemism and local adaptation, showing that extreme conditions drive unique microbial traits.

This study investigates how horizontal gene transfer and selection drive microbial adaptation in Antarctic soils, finding widespread HGT of aerotrophy-related genes and strong purifying selection.

This study identifies quinone-transporting filaments in Bacillus subtilis as an alternative to membrane invaginations for expanding respiratory capacity in Gram-positive bacteria.

This study shows that Antarctic soil bacteria can consume trace gases like H2 and CO across wide temperature ranges, with potential increases in activity under future climate scenarios.

The paper investigates chemosynthesis in a marine cave ecosystem, finding that interior communities rely on chemosynthetic processes for carbon fixation and diversity, contrasting with entrance areas.

This study identifies aridity as the primary driver of microbial community structure and biogeochemical activities in deserts across seven continents.

This study investigates microbial colonization in glacial forelands, finding that metabolically flexible bacteria drive early succession and create hospitable conditions for later colonizers.

The paper identifies Flavobacteria in coastal sediments that reduce nitrous oxide emissions by having low substrate affinity, contradicting prior assumptions and suggesting they buffer nitrogen cycling.

This study identifies aerotrophy as a primary energy source in caves, revealing microbial use of atmospheric trace gases for continuous primary production.

The paper examines how soil trace gas oxidizers respond to short- and long-term warming, finding increased CO and H2 oxidation but reduced CH4 oxidation with long-term warming.

The paper shows bark-associated diazotrophs fix significant nitrogen in forests, contributing up to 3.8 Tg N yr-1 globally.

This study shows that 3-NOP reduces methane emissions in ruminants by altering microbial communities and fermentation pathways, but limits productivity gains due to shifts in hydrogen-cycling microbes.

This study shows that carbon monoxide exposure promotes growth and activity of carboxydotrophic bacteria in diverse soil ecosystems, suggesting a potential role for soils as a CO sink.

This study shows that chemosynthesis significantly contributes to carbon fixation in microbialite ecosystems, enhancing their productivity beyond photosynthesis.

The paper identifies microbial communities in wetland tree barks that mediate methane and hydrogen cycling, showing they can both mitigate and emit climate-active gases.

This study shows that carbon monoxide dehydrogenases enhance bacterial survival by providing a supplemental energy source during organic carbon starvation.