Results 11 to 20 of about 273,232 (207)

Ammonia-oxidizing archaea and complete ammonia-oxidizing Nitrospira in water treatment systems [PDF]

open access: yesWater Research X, 2022
Nitrification, the oxidation of ammonia to nitrate via nitrite, is important for many engineered water treatment systems. The sequential steps of this respiratory process are carried out by distinct microbial guilds, including ammonia-oxidizing bacteria (
Sarah Al-Ajeel   +4 more
doaj   +6 more sources

Adaptive traits of Nitrosocosmicus clade ammonia-oxidizing archaea [PDF]

open access: yesmBio
Nitrification is a core process in the global nitrogen (N) cycle mediated by ammonia-oxidizing microorganisms, including ammonia-oxidizing archaea (AOA) as a key player.
Saem Han   +11 more
doaj   +5 more sources

A review of ammonia-oxidizing bacteria and archaea in Chinese soils [PDF]

open access: yesFrontiers in Microbiology, 2012
Ammonia (NH3) oxidation, the first and rate-limiting step of nitrification, is a key step in the global Nitrogen (N) cycle. Major advances have been made in recent years in our knowledge and understanding of the microbial communities involved ammonia ...
Ji-Zheng eHe   +3 more
doaj   +6 more sources

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

open access: yesPLoS 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   +2 more
doaj   +6 more sources

Diversity and Abundance of Ammonia-Oxidizing Bacteria and Archaea in a Freshwater Recirculating Aquaculture System [PDF]

open access: yesHayati Journal of Biosciences, 2017
The role of ammonia-oxidizing bacteria and archaea was evaluated using amoA gene in a freshwater recirculating system. Broken earthen pot pieces (BEP) were used as filter bed material.
Cherita Devi Khangembam   +2 more
doaj   +2 more sources

Variability of the transporter gene complement in ammonia-oxidizing archaea

open access: yesTrends in Microbiology, 2014
Ammonia-oxidizing archaea (AOA) are a widespread and abundant component of microbial communities in many different ecosystems. The extent of physiological differences between individual AOA is, however, unknown.
Schleper, Christa   +3 more
core   +4 more sources

Ammonia-oxidizing bacteria and archaea within biofilters of a commercial recirculating marine aquaculture system

open access: yesAMB Express, 2018
While biofilters are widely used to metabolize ammonia and other wastes in marine recirculating aquaculture systems, the ammonia-oxidizing bacterial and archaeal communities have not been characterized across a diversity of production systems.
Zhitao Huang   +8 more
doaj   +2 more sources

Ammonia-oxidizing archaea and ammonia-oxidizing bacteria in six full-scale wastewater treatment bioreactors [PDF]

open access: yesApplied Microbiology and Biotechnology, 2011
In this study, dideoxy sequencing and 454 high-throughput sequencing were used to analyze diversities of the ammonia monooxygenase (amoA) genes and the 16S rRNA genes of ammonia-oxidizing archaea (AOA) and ammonia-oxidizing bacteria (AOB) in six ...
Shao, MF   +9 more
core   +6 more sources

Exploring protein N-glycosylation in ammonia-oxidizing Nitrososphaerota archaea through glycoproteomic analysis

open access: yesmBio
Ammonia-oxidizing archaea of the phylum Nitrososphaerota, formerly known as Thaumarchaeota, are globally distributed and play critical roles in the nitrogen and carbon cycles, particularly in environments with low ammonia concentrations.
Satoshi Nakagawa   +9 more
doaj   +2 more sources

Selective Enrichment of Nitrososphaera viennensis-Like Ammonia-Oxidizing Archaea over Ammonia-Oxidizing Bacteria from Drinking Water Biofilms [PDF]

open access: yesMicrobiology Spectrum, 2022
Ammonia-oxidizing archaea (AOA) can oxidize ammonia to nitrite for energy gain. They have been detected in chloraminated drinking water distribution systems (DWDS) along with the more common ammonia-oxidizing bacteria (AOB) and nitrite-oxidizing bacteria
Yissue Woo   +2 more
doaj   +2 more sources

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