Oxidation of ammonia to nitrite by bacteria and archaea is responsible for global emissions
of nitrous oxide directly and indirectly through provision of nitrite and, after further oxidation …

Corals live in a complex, multipartite symbiosis with diverse microbes across kingdoms,
some of which are implicated in vital functions, such as those related to resilience against …

Ammonia-oxidising archaea (AOA) are ubiquitous and abundant in nature and play a major
role in nitrogen cycling. AOA have been studied intensively based on the amoA gene …

Nitrification, the aerobic oxidation of ammonia to nitrate via nitrite, has been suggested to
have been a central part of the global biogeochemical nitrogen cycle since the oxygenation …

The discovery of ammonia-oxidizing archaea (AOA), now generally recognized to exert
primary control over ammonia oxidation in terrestrial, marine, and geothermal habitats …

The first step of nitrification, oxidation of ammonia to nitrite, is performed by both ammonia-
oxidising archaea (AOA) and ammonia-oxidising bacteria (AOB) in soil, but their relative …

Ammonia-oxidizing archaea (AOA) are now implicated in exerting significant control over the
form and availability of reactive nitrogen species in marine environments. Detailed studies of …

Hadal oceans at water depths below 6,000 m are the least-explored aquatic biosphere. The
Challenger Deep, located in the western equatorial Pacific, with a water depth of∼ 11 km, is …

Nitrogen (N) is a key element for life in the oceans. It controls primary productivity in many
parts of the global ocean, consequently playing a crucial role in the uptake of atmospheric …

For more than 100 years it was believed that bacteria were the only group responsible for
the oxidation of ammonia. However, recently, a new strain of archaea bearing a putative …