To investigate the effect of ammonium addition on the species composition and activity of
freshwater methane oxidizing bacteria, intact sediment cores were labeled with 13CH4 and …

Abstract Deep marine sediments (> 1mbsf) harbor~ 26% of microbial biomass and are the
largest reservoir of methane on Earth. Yet, the deep subsurface biosphere and controls on …

As marine sediments are buried, microbial communities transition from sulfate-reduction to
methane-production after sulfate is depleted. When this biogenic methane diffuses into the …

Lakes are widely distributed on the Tibetan Plateau, which plays an important role in natural
methane emission. Aerobic methanotrophs in lake sediments reduce the amount of methane …

Gas hydrates deposited in subseafloor sediments are considered to primarily consist of
biogenic methane. However, little evidence for the occurrence of living methanogens in …

The importance of methanotrophic microorganisms in the sediment and water column for
balancing marine methane budgets is well accepted. However, whether methanotrophic …

Methane is a potent greenhouse gas. Continental margins contain large reservoirs of
methane as solid gas hydrate and the dissolved and gaseous forms of methane. Submarine …

Methylotrophs play an essential role in the global carbon cycle due to their participation in
methane oxidation and C1 metabolism. Despite this important biogeochemical role, marine …

Methane, a potent greenhouse gas of global importance, has traditionally been considered
as an end product of microbial methanogenesis of organic matter. Paradoxically, growing …

Methanogenesis, an anaerobic microbial process in sediments, was investigated in a
naturally acidic bog lake, Grosse Fuchskuhle, in northeastern Germany. The lake was …