In the Anthropocene, nitrogen pollution is becoming an increasing challenge for both
mankind and the Earth system. Microbial nitrogen cycling begins with aerobic nitrification …

Molecular hydrogen (H 2) is available in trace amounts in most ecosystems through
atmospheric, biological, geochemical, and anthropogenic sources. Aerobic bacteria use this …

Diverse aerobic bacteria use atmospheric H2 as an energy source for growth and survival.
This globally significant process regulates the composition of the atmosphere, enhances soil …

Nitrospirales, including the genus Nitrospira, are environmentally widespread
chemolithoautotrophic nitrite-oxidizing bacteria. These mostly uncultured microorganisms …

Diverse aerobic bacteria use atmospheric hydrogen (H2) and carbon monoxide (CO) as
energy sources to support growth and survival. Such trace gas oxidation is recognised as a …

Nitrite-oxidizing bacteria (NOB) are undesirable in the anaerobic ammonium oxidation
(anammox)-driven nitrogen removal technologies in the modern wastewater treatment …

Aerobic nitrification is a key process in the global nitrogen cycle mediated by
microorganisms. While nitrification has primarily been studied in near-neutral environments …

Guanidine is a chemically stable nitrogen compound that is excreted in human urine and is
widely used in manufacturing of plastics, as a flame retardant and as a component of …

Atmospheric chemosynthesis is a recently proposed form of chemoautotrophic microbial
primary production. The proposed process relies on the oxidation of trace concentrations of …

Aerobic hydrogen-oxidizing bacteria (HOB) is a group of active, abundant, and diverse
microorganisms with representatives in nearly all phyla, distributed in soil exposed to …