Fate of Hydroxylamine in the Nitrogen Cycle

One of the least studied nitrogen compounds is hydroxylamine. Hydroxylamine<br/>is a highly reactive and toxic inorganic compound that some microorganisms use<br/>as intermediate during nitrogen conversions. The aim of this thesis was to further<br/>understand the role of hydroxylamine in the nitrogen cycle.

Metagenomic analysis of nitrogen and methane cycling in the Arabian Sea oxygen minimum zone

Oxygen minimum zones (OMZ) are areas in the global ocean where oxygen concentrations drop to below one percent. Low oxygen concentrations allow alternative respiration with nitrate and nitrite as electron acceptor to become prevalent in these areas, making them main contributors to oceanic nitrogen loss. The contribution of anammox and...

Shotgun metagenomic data reveals significant abundance but low diversity of "Candidatus Scalindua" marine anammox bacteria in the Arabian Sea oxygen minimum zone

Anaerobic ammonium oxidizing (anammox) bacteria are responsible for a significant portion of the loss of fixed nitrogen from the oceans, making them important players in the global nitrogen cycle. To date, marine anammox bacteria found in both water columns and sediments worldwide belong almost exclusively to "Candidatus Scalindua" species....

How to make a living from anaerobic ammonium oxidation

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 were neglected for a long time, anammox bacteria are encountered in an enormous species (micro)diversity in virtually any anoxic environment that contains fixed nitrogen. It...

Simultaneous nitrification and denitrification in aerobic chemostat cultures of Thiosphaera pantotropha