Results 11 to 20 of about 15,618 (215)

Global ecological pattern of ammonia-oxidizing archaea. [PDF]

PLoS ONE, 2013
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, Jean-Christophe Auguet, Ji-Dong Gu   +2 more
doaj   +6 more sources

Production of oceanic nitrous oxide by ammonia-oxidizing archaea [PDF]

Biogeosciences, 2012
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, A. Kock, M. Könneke, J. LaRoche, H. W. Bange, R. A. Schmitz   +5 more
doaj   +5 more sources

Diversity, Physiology, and Niche Differentiation of Ammonia-Oxidizing Archaea [PDF]

Applied and Environmental Microbiology, 2012
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 of Earth.
Hatzenpichler, Roland
core   +6 more sources

Freshwater Ammonia-Oxidizing Archaea Retain amoA mRNA and 16S rRNA during Ammonia Starvation [PDF]

Life, 2015
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]

FEMS Microbiol Lett, 2023
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, Crombie AT, Murrell JC, Lehtovirta-Morley LE.   +3 more
europepmc   +3 more sources

Ammonia-oxidizing archaea possess a wide range of cellular ammonia affinities. [PDF]

ISME J, 2022
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, Sedlacek CJ, Kits KD, Mueller AJ, Rhee SK, Hink L, Nicol GW, Bayer B, Lehtovirta-Morley L, Wright C, de la Torre JR, Herbold CW, Pjevac P, Daims H, Wagner M.   +14 more
europepmc   +8 more sources

Activity-based labelling of ammonia- and alkane-oxidizing microorganisms including ammonia-oxidizing archaea [PDF]

ISME Communications, 2023
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, Sakoula D, Schatteman A, Blom P, Jetten M, Kessel Mv, Lehtovirta-Morley L.   +6 more
europepmc   +3 more sources

Competition between ammonia-oxidizing archaea and complete ammonia oxidizers from freshwater environments. [PDF]

Appl Environ Microbiol
Nitrification is a key process in the global nitrogen cycle. Aerobic ammonia oxidizers play a central role in the nitrogen cycle by performing the first step of nitrification. Ammonia-oxidizing archaea (AOA) and complete ammonia oxidizers (comammox) are the dominant nitrifiers in environments with low ammonium availability.
Ghimire-Kafle S, Weaver ME, Kimbrel MP, Bollmann A.   +3 more
europepmc   +3 more sources

Nitric oxide scavengers differentially inhibit ammonia oxidation in ammonia-oxidizing archaea and bacteria [PDF]

FEMS Microbiology Letters, 2016
Differential inhibitors are important for measuring the relative contributions of microbial groups, such as ammonia-oxidizing bacteria (AOB) and ammonia-oxidizing archaea (AOA), to biogeochemical processes in environmental samples. In particular, 2-phenyl-4,4,5,5-tetramethylimidazoline-1-oxyl 3-oxide (PTIO) represents a nitric oxide scavenger used for ...
Laura A, Sauder, Ashley A, Ross, Josh D, Neufeld   +2 more
openaire   +2 more sources

The network of nitrifying and pathogenic prokaryotic interactions in a recirculating aquaculture system of a sole (Solea senegalensis) hatchery

Frontiers in Marine Science, 2022
Prokaryotic interactions in recirculating aquaculture systems (RAS) environmental communities may play a crucial role in driving their functional potential. However, these interactions are often neglected.
Diana Bastos Almeida, Diana Bastos Almeida, Diana Bastos Almeida, Miguel Semedo, Catarina Magalhães, Catarina Magalhães, Catarina Magalhães, Isidro Blanquet, Ana Paula Mucha, Ana Paula Mucha   +9 more
doaj   +1 more source