Increasing nutrient inputs into terrestrial ecosystems affect not only plant communities but
also associated soil microbial communities. Studies carried out in predominantly …

Autotrophic archaeal and bacterial ammonia-oxidisers (AOA and AOB) drive soil nitrification.
Ammonia limitation, mixotrophy, and pH have been suggested as factors providing niche …

Nitrification, the oxidation of ammonia to nitrate, is an essential process in the
biogeochemical nitrogen cycle. The first step of nitrification, ammonia oxidation, is performed …

High and low rates of ammonium supply are believed to favour ammonia-oxidising bacteria
(AOB) and archaea (AOA), respectively. Although their contrasting affinities for ammonium …

The recent discovery of bacteria within the genus Nitrospira capable of complete ammonia
oxidation (comammox) demonstrated that the sequential oxidation of ammonia to nitrate via …

Thaumarchaeota range among the most abundant archaea on Earth. Initially classified as
'mesophilic Crenarchaeota', comparative genomics has recently revealed that they form a …

In the majority of agricultural soils, ammonium (NH 4+) is rapidly converted to nitrate (NO 3−)
in the biological ammonia and nitrite oxidation processes known as nitrification. The often …

Carbon (C) and nitrogen (N) inputs to farmland via fertilizer application are potential sources
of C and N that influence soil acidification and water eutrophication. A pilot study was …

Studies of the distribution of ammonia oxidising archaea (AOA) and bacteria (AOB) suggest
distinct ecological niches characterised by ammonia concentration and pH, arising through …

Soil ammonia-oxidizing bacteria and archaea (AOB and AOA) convert ammonium/ammonia
to nitrite in the process of nitrification. However, the potentially differential responses of these …