Methyl-based methanogenesis is one of three broad categories of archaeal anaerobic
methanogenesis, including both the methyl dismutation (methylotrophic) pathway and the …

Large amounts of methane, a potent greenhouse gas, are produced in anoxic sediments by
methanogenic archaea. Nonetheless, over 90% of the produced methane is oxidized via …

Archaea are common constituents of the gut microbiome of humans, ruminants, and termites
but little is known about their diversity and abundance in other animals. Here, we analyse …

Bathyarchaeia, as one of the most abundant microorganisms on Earth, play vital roles in the
global carbon cycle. However, our understanding of their origin, evolution, and ecological …

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 …

Sulfur reduction in freshwater ecosystems has previously been considered as negligible
because of often very low sulfate concentrations and generally low sulfate reducing capacity …

Coastal wetlands are increasingly being converted into aquaculture ponds to meet growing
global demand for fish protein. Coastal wetlands conversion has been predicted to result in …

Although cyanobacteria blooms lead to an increase in methane (CH 4) emissions in
eutrophic lakes have been intensively studied, the methane production pathways and …

Minerals are widely proposed to protect organic carbon from degradation and thus promote
the persistence of organic carbon in soils and sediments, yet a direct link between mineral …

Background Gas hydrate-bearing subseafloor sediments harbor a large number of
microorganisms. Within these sediments, organic matter and upward-migrating methane are …