Anaerobic ammonium-oxidizing (anammox) bacteria primarily grow by the oxidation of
ammonium coupled to nitrite reduction, using CO2 as the sole carbon source. Although they …

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 …

Recent physiological and ecological studies have challenged the long-held belief that
microbial metabolism of molecular hydrogen (H2) is a niche process. To gain a broader …

If the atmosphere of the early Earth was hydrogen-rich, 1 it is reasonable to think that
hydrogenases, the enzymes enabling cells to use molecular hydrogen, were probably …

Max-Planck-Institut für terrestrische Mikrobiologie, Karl-von-Frisch-Straße, D-35043
Marburg, and Laboratorium für Mikrobiologie, Fachbereich Biologie, Philipps-Universität …

Hydrogenases (H2ases) catalyze the reversible oxidation of molecular hydrogen and play a
central role in microbial energy metabolism. Most of these enzymes are found in Archaea …

Background Acidithiobacillus ferrooxidans is a major participant in consortia of
microorganisms used for the industrial recovery of copper (bioleaching or biomining). It is a …

NADH: quinone oxidoreductase (complex I) pumps protons across the inner membrane of
mitochondria or the plasma membrane of many bacteria. Human complex I is involved in …

Despite thermodynamic, bioenergetic and phylogenetic failings, the 81‐year‐old concept of
primordial soup remains central to mainstream thinking on the origin of life. But soup is …

Under anaerobic conditions, Escherichia coli can carry out a mixed-acid fermentation that
ultimately produces molecular hydrogen. The enzyme directly responsible for hydrogen …