Environmental factors shaping the ecological niches of ammonia-oxidizing archaea [PDF]
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 ammonia monooxygenase subunit A (amoA) gene and able to oxidize ammonia was ...
Boon, N. +4 more
core +5 more sources
Global ecological pattern of ammonia-oxidizing archaea. [PDF]
BACKGROUND: The global distribution of ammonia-oxidizing archaea (AOA), which play a pivotal role in the nitrification process, has been confirmed through numerous ecological studies.
Huiluo Cao +2 more
doaj +6 more sources
Genome gazing in ammonia-oxidizing archaea [PDF]
This month’s Genome Watch highlights the unique evolutionary history, metabolic functions, and newly identified viruses and associated mobile genetic elements for the highly abundant and ubiquitous ammonia-oxidizing archaea.
Emiley A Eloe-Fadrosh
openaire +4 more sources
Ammonia-oxidizing archaea have more important role than ammonia-oxidizing bacteria in ammonia oxidation of strongly acidic soils [PDF]
Abstract Increasing evidence demonstrated the involvement of ammonia-oxidizing archaea (AOA) in the global nitrogen cycle, but the relative contributions of AOA and ammonia-oxidizing bacteria (AOB) to ammonia oxidation are still in debate. Previous studies suggest that AOA would be more adapted to ammonia-limited oligotrophic conditions,
Li-Mei, Zhang +3 more
openaire +4 more sources
Production of oceanic nitrous oxide by ammonia-oxidizing archaea [PDF]
The recent finding that microbial ammonia oxidation in the ocean is performed by archaea to a greater extent than by bacteria has drastically changed the view on oceanic nitrification.
C. R. Löscher +5 more
doaj +5 more sources
Indigenous Ammonia-Oxidizing Archaea in Oxic Subseafloor Oceanic Crust
Oceanic ridge flank systems represent one of the largest and least-explored microbial habitats on Earth. Fundamental ecological questions regarding community activity, recruitment, and succession in this environment remain unanswered.
Rui Zhao +3 more
doaj +5 more sources
Freshwater Ammonia-Oxidizing Archaea Retain amoA mRNA and 16S rRNA during Ammonia Starvation [PDF]
In their natural habitats, microorganisms are often exposed to periods of starvation if their substrates for energy generation or other nutrients are limiting.
Elizabeth French, Annette Bollmann
doaj +3 more sources
Alcohols as inhibitors of ammonia oxidizing archaea and bacteria. [PDF]
Abstract Ammonia oxidizers are key players in the global nitrogen cycle and are responsible for the oxidation of ammonia to nitrite, which is further oxidized to nitrate by other microorganisms. Their activity can lead to adverse effects on some human-impacted environments, including water pollution through leaching of nitrate and ...
Oudova-Rivera B +3 more
europepmc +3 more sources
Ammonia-oxidizing archaea possess a wide range of cellular ammonia affinities. [PDF]
Abstract 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 by three, often co-occurring guilds of chemolithoautotrophs: ammonia-oxidizing bacteria (AOB), archaea (AOA), and complete ammonia oxidizers ...
Jung MY +14 more
europepmc +8 more sources
Activity-based labelling of ammonia- and alkane-oxidizing microorganisms including ammonia-oxidizing archaea [PDF]
Abstract Recently, an activity-based labelling protocol for the in situ detection of ammonia- and alkane-oxidizing bacteria became available. This functional tagging technique enabled targeted studies of these environmentally widespread functional groups, but it failed to capture ammonia-oxidizing archaea (AOA). Since their first discovery, AOA
Lücker S +6 more
europepmc +3 more sources

