Conceptually, the simplest way to synthesize an organic molecule is to construct it one
carbon at a time. The Wood–Ljungdahl pathway of CO2 fixation involves this type of …

The metabolism of Archaea, the third domain of life, resembles in its complexity those of
Bacteria and lower Eukarya. However, this metabolic complexity in Archaea is accompanied …

Production of hydrogen by anaerobes, facultative anaerobes, aerobes, methylotrophs, and
photosynthetic bacteria is possible. Anaerobic Clostridia are potential producers and …

Tungsten (atomic number 74) and the chemically analogous and very similar metal
molybdenum (atomic number 42) are minor yet equally abundant elements on this planet …

The candidate division Korarchaeota comprises a group of uncultivated microorganisms
that, by their small subunit rRNA phylogeny, may have diverged early from the major …

Abstract rnf genes are widespread in bacteria and biochemical and genetic data are in line
with the hypothesis that they encode a membrane-bound enzyme that oxidizes reduced …

This article reviews an enzyme that has the ability to perform the thiamine pyrophosphate
(TPP)-dependent oxidative decarboxylation of pyruvate to form acetyl-CoA and CO2 …

Hyperthermophiles are microorganisms that can grow at and above 100 degree Celsius and
are anaerobic heterotophs dependant on reduction of elemental sulfur to H2S for growth …

An early divergence in evolution has resulted in two prokaryotic domains, the Bacteria and
the Archaea. Whereas the central metabolic routes of bacteria and eukaryotes are generally …

Hyperthermophiles are characterized by a temperature optimum for growth between 80 and
110° C. They are considered to represent the most ancient phenotype of living organisms …