Results 21 to 30 of about 1,302 (178)
Comammox Nitrospira abundance and contribution to nitrification in a forested landscape
EcosphereNitrification in terrestrial ecosystems is mediated by NH4+‐oxidizing bacteria (AOB) and archaea (AOA). Presently, we understand relatively little about how physiological capacities and environmental tolerances influence their community composition, and ...
Donald R. Zak, Rima A. Upchurch
doaj +2 more sources
Design and assessment of species-level qPCR primers targeting comammox [PDF]
Frontiers in Microbiology, 2018 Published PCR primers targeting the ammonia monooxygenase gene (amoA) were applied to samples from activated sludge systems operated with low dissolved oxygen (DO) to quantify total and clade-levelNitrospirathat perform complete ammonium oxidation ...
Daniel R. Noguera, Natalie Keene-Beach
core +4 more sources
The environmental detection of comammox Nitrospira
, 2017 Vor kurzem wurden die ersten Mikroorganismen entdeckt, die in der Lage sind Ammonium komplett zu Nitrat zu oxidieren (‘comammox’), und dadurch das Dogma, über die Arbeitsteilung in der Nitrifikation in zwei aufeinanderfolgenden Schritten, für ungültig ...
Schauberger, Clemens
core +2 more sources
Impact of comammox process on membrane-aerated biofilm reactor for autotrophic nitrogen removal
Water Research XThis study compared the simulation results of the side-stream membrane-aerated biofilm reactor (MABR) in terms of total nitrogen (TN) removal and N2O production obtained by the conventional comammox-exclusive biological nitrogen removal (BNR) model and ...
Jiaying Hou +4 more
doaj +2 more sources
Community assembly of comammox Nitrospira in coastal wetlands across southeastern China [PDF]
Applied and Environmental Microbiology, 2023 Complete ammonia oxidizers (comammox Nitrospira) are ubiquitous in coastal wetland sediments and play an important role in nitrification. Our study examined the impact of habitat modifications on comammox Nitrospira communities in coastal wetland ...
Kam Tang
core +5 more sources
Genome-Enabled Insights into the Ecophysiology of the Comammox Bacterium “
mSystems, 2017 The recently discovered comammox bacteria have the potential to completely oxidize ammonia to nitrate. These microorganisms are part of the Nitrospira genus and are present in a variety of environments, including biological nutrient removal (BNR) systems.
Pamela Y. Camejo +3 more
doaj +3 more sources
Linking Abundance and Activity of Ammonia-Oxidising Bacteria and Archaea in an Agriculturally Impacted First-Order Stream. [PDF]
Environ MicrobiolAmmonia‐oxidising archaea (AOA) and bacteria (AOB) coexist in streambed sediments, but their contributions to nitrification remain unresolved. Using field sampling, sequencing, qPCR, microcosm incubations and modelling, we show that AOB dominated nitrification in streambed sediments despite lower abundance, emphasizing the importance of distinguishing ...
Wang Z +6 more
europepmc +2 more sources
Ammonium Removal in Aquaponics Indicates Participation of Comammox Nitrospira [PDF]
Current Microbiology, 2021 AbstractAquaponic systems are sustainable solutions for food production combining fish growth (aquaculture) and production of vegetables (hydroponic) in one recirculating system. In aquaponics, nitrogen-enriched wastewater from fish in the aquaculture serves as fertilizer for the plants in the hydroponics, while the nitrogen-depleted and detoxified ...
Heise, Julia +3 more
openaire +3 more sources
Frontiers in Microbiology, 2022 The recent discovery of comammox Nitrospira, a complete ammonia oxidizer, capable of completing the nitrification on their own has presented tremendous challenges to our understanding of the nitrification process.
Pei-Chun (Lisa) Hsu +19 more
doaj +1 more source
mSystems, 2023 The newly discovered complete ammonia-oxidizing (comammox) Nitrospira has been identified in different environments, including coastal environments, where salinity is one of the most important factors for the abundance and activity of nitrifiers.
Ran Jiang +12 more
doaj +1 more source