Methanogenic archaea with and without cytochromes have been identified. This Review focuses on differences in energy conservation during the reduction of CO2 with H2 to CH4. In methanogens with ...

We show that methanogenesis did not always yield equimolar amount of CH₄ and DIC, as would be expected from the fermentation of the model molecule CH₂O. While ∼50% of the CH₄ produced in Basin A is ...

In the context of methanogenesis, these enzymes convert hydrogen gas into methane and are involved in the energy-coupling mechanism of the flavin-based electron bifurcation (FBEB) reaction. The ...

The anaerobic mineralization of buried organic matter through sulfate reduction and methanogenesis was studied in 2-m-long piston cores of organic-rich, silty-clay sediment from two sites in ...