Because nitrogen availability limits primary production over much of the global ocean,
understanding the controls on the marine nitrogen inventory and supply to the surface ocean …

As a key biogeochemical pathway in the marine nitrogen cycle, nitrification (ammonia
oxidation and nitrite oxidation) converts the most reduced form of nitrogen–ammonium …

Oxygen minimum zones (OMZs), due to their large volumes of perennially deoxygenated
waters, are critical regions for understanding how the interplay between anaerobic and …

Anoxic marine zones (AMZs) are host to anaerobic metabolisms that drive losses of
bioavailable nitrogen from the ocean. The discovery of active nitrite-oxidising bacteria …

Nitrite is a central molecule in the nitrogen cycle because nitrite oxidation to nitrate (an
aerobic process) retains fixed nitrogen in a system and its reduction to dinitrogen gas …

Biogeochemical cycles in the Precambrian ocean responded to the co-evolution of
biosphere (microorganisms) and the physicochemical structure (eg, redox, temperature) of …