There are two types of electron bifurcation (EB), either quinone-or flavin-based
(QBEB/FBEB), that involve reduction of a quinone or flavin by a two-electron transfer and two …

Although of limited metabolic diversity, methanogenic archaea or methanogens possess
great phylogenetic and ecological diversity. Only three types of methanogenic pathways are …

1Laboratoire de Microbiologie IRD, Universite de Provence, ESIL case 925, 163 Avenue
de Luminy, 13288 Marseille cedex 9, France 2Microbial Discovery Research Unit, School of …

Biological methanogenesis plays a major role in the carbon cycle on Earth. Methanogenesis
is the terminal step in carbon flow in many anaerobic habitats, including marine and …

The influence of the feedstock type on the microbial communities involved in anaerobic
digestion was investigated in laboratory-scale biogas reactors fed with different agricultural …

Methanogens are anaerobic archaea that grow by producing methane gas. These microbes
and their exotic metabolism have inspired decades of microbial physiology research that …

The microbiota of freshwater and marine sediments serve similar roles in carbon
degradation and nutrient regeneration. However, because of differences in the chemical …

Electrotrophy, the growth of microbes on extracellular electron donors, drives important
biogeochemical cycles and has practical applications. Studies of Fe (II)-based electrotrophy …

Methanogenesis, the biological production of methane, plays a pivotal role in the global
carbon cycle and contributes significantly to global warming. The majority of methane in …

The methanogenic bacteria are a large and diverse group that is united by three features: 1)
They form large quantities of methane as the major product of their energy metabolism. 2) …