Ammonia oxidation in nitrifying bacteria represents the first and rate-limiting step of the aerobic nitrogen cycle, converting ammonia to nitrite. This process is mediated by a two-enzyme pathway: ...
Ammonia-oxidizing bacteria (AOB), ammonia-oxidizing archaea (AOA), and comammox Nitrospira have been considered to coexist in acidic soils, oxidizing ammonia within their respective niches. However, ...