Results 181 to 190 of about 8,377 (202)
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Ammonia-oxidizing bacteria and archaea in sediments of the Gulf of Mexico
Environmental Technology, 2014The diversity (richness and community composition) of ammonia-oxidizing archaea (AOA) and bacteria (AOB) within sediments of the Gulf of Mexico was examined. Using polymerase chain reaction primers designed to specifically target the archaeal ammonia monooxygenase-subunit (amoA) gene and bacterial amoA gene, we found AOA and AOB to be present in all ...
Flood, M +6 more
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Ammonia-oxidizing Archaea in Kamchatka Hot Springs
Geomicrobiology Journal, 2011Mounting evidence suggests that ammonia-oxidizing archaea (AOA) may play important roles in nitrogen cycling in geothermal environments. In this study, the diversity, distribution and ecological significance of AOA in terrestrial hot springs in Kamchatka (Far East Russia) were explored using amoA genes complemented by analysis of glycerol dialkyl ...
Hongchen Jiang +2 more
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Homologues of nitrite reductases in ammonia‐oxidizing archaea: diversity and genomic context
Environmental Microbiology, 2010Summary Ammonia‐oxidizing archaea are frequent and ubiquitous inhabitants of terrestrial and marine environments. As they have only recently been detected, most aspects of their metabolism are yet unknown.
Bartossek, Rita +4 more
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A Critical Review on Nitrous Oxide Production by Ammonia-Oxidizing Archaea
Environmental Science & Technology, 2020The continuous increase of nitrous oxide (N2O) in the atmosphere has become a global concern because of its property as a potent greenhouse gas. Given the important role of ammonia-oxidizing archaea (AOA) in ammonia oxidation and their involvement in N2O production, a clear understanding of the knowledge on archaeal N2O production is necessary for ...
Lan Wu +5 more
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Microbial Ecology, 2010
Ammonia-oxidizing bacteria (AOB) and ammonia-oxidizing archaea (AOA) play important roles in nitrification in various environments. They may also be key communities for ammonia oxidation in composting systems, although few studies have discussed their presence. We investigated the relative diversity and abundance of AOB and AOA using cloning procedures,
Nozomi, Yamamoto +2 more
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Ammonia-oxidizing bacteria (AOB) and ammonia-oxidizing archaea (AOA) play important roles in nitrification in various environments. They may also be key communities for ammonia oxidation in composting systems, although few studies have discussed their presence. We investigated the relative diversity and abundance of AOB and AOA using cloning procedures,
Nozomi, Yamamoto +2 more
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Bioresource Technology
Ammonia-oxidizing activity of different ammonia-oxidizing microorganisms (AOMs), such as ammonia-oxidizing bacteria (AOB), ammonia-oxidizing archaea (AOA), and complete ammonia oxidizers (comammoxs), were investigated by adding the inhibitors such as 2-phenyl-4,4,5,5-tetramethylimidazoline-1-oxyl 3-oxide, octyne, and KCLO3 in biofilm systems with ...
Haojie Qiu +7 more
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Ammonia-oxidizing activity of different ammonia-oxidizing microorganisms (AOMs), such as ammonia-oxidizing bacteria (AOB), ammonia-oxidizing archaea (AOA), and complete ammonia oxidizers (comammoxs), were investigated by adding the inhibitors such as 2-phenyl-4,4,5,5-tetramethylimidazoline-1-oxyl 3-oxide, octyne, and KCLO3 in biofilm systems with ...
Haojie Qiu +7 more
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Characterization of ammonia-oxidizing archaea by Raman microspectroscopy
2012Nitrifikation ist die Oxidation von Ammonium zu Nitrit und weiter zu Nitrat. Es ist einer der wichtigsten Schritte im globalen Stickstoffkreislauf. Für lange Zeit glaubte man, dass für den ersten Schritt der Nitrifikation ausschließlich Ammoniak-oxidierende Bakterien (AOB) verantwortlich sind, jedoch wurden vor einigen Jahren die Ammoniak-oxidierenden ...
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Towards a genetic system for ammonia oxidizing archaea
Ammonia oxidizing archaea (AOA) play an important role in the global geochemical nitrogen cycle. They are globally distributed in diverse environments and contribute to the loss of reactive nitrogen species in agricultural soils. However, little is known about the key metabolic enzymes responsible for their main energy metabolism, the conversion of ...openaire +1 more source
Exploring the Energetics of Ammonia Oxidizing Archaea
Biochimica et Biophysica Acta (BBA) - Bioenergetics, 2018Logan H. Hodgskiss, Christa Schleper
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Cu(II) adsorption onto ammonia-oxidizing bacteria and archaea
Geochimica Et Cosmochimica Acta, 2019Drew Gorman-Lewis +2 more
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