High-throughput analysis of ammonia oxidiser community composition via a novel, amoA-based functional gene array. [PDF]
PLoS ONE, 2012 Advances in microbial ecology research are more often than not limited by the capabilities of available methodologies. Aerobic autotrophic nitrification is one of the most important and well studied microbiological processes in terrestrial and aquatic ...
Guy C J Abell +6 more
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Retraction Note to: Archaeal amoA Genes Outnumber Bacterial amoA Genes in Municipal Wastewater Treatment Plants in Bangkok [PDF]
Microbial Ecology, 2016 The contribution of ammonia-oxidizing archaea (AOA) to nitrogen removal in wastewater treatment plants (WWTPs) remains unknown. This study investigated the abundance of archaeal (AOA) and bacterial (ammonia-oxidizing bacteria (AOB)) amoA genes in eight of Bangkok’s municipal WWTPs.
Pantip, Kayee +3 more
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Differential regulation of amoA and amoB gene copies in Nitrosomonas europaea [PDF]
FEMS Microbiology Letters, 2000 Nitrosomonas europaea contains two nearly identical copies of the operon, amoCAB, which encodes the ammonia monooxygenase (AMO) enzyme. Cells of N. europaea containing single mutations in either amoA or amoB gene copies were incubated in ammonium both prior to and after exposure to acetylene or light.
L Y, Stein +3 more
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Abundances of crenarchaeal amoA genes and transcripts in the Pacific Ocean [PDF]
Environmental Microbiology, 2010 Summary Planktonic Crenarchaea are thought to play a key role in chemolithotrophic ammonia oxidation, a critical step of the marine nitrogen (N) cycle. In this study, we examined the spatial distributions of ammonia‐oxidizing Crenarchaea
Church, Matthew J +3 more
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Diversity and distribution of amoA-type nitrifying and nirS-type denitrifying microbial communities in the Yangtze River estuary [PDF]
Biogeosciences, 2014 Coupled nitrification–denitrification plays a critical role in the removal of excess nitrogen, which is chiefly caused by humans, to mitigate estuary and coastal eutrophication.
Y. Zhang +4 more
doaj +1 more source
Archaeal amoA and ureC genes and their transcriptional activity in the Arctic Ocean [PDF]
Scientific Reports, 2014 Thaumarchaeota and the gene encoding for a subunit of ammonia monooxygenase (amoA) are ubiquitous in Polar Seas, and some Thaumarchaeota also have a gene coding for ureC, diagnostic for urease. Using quantitative PCR we investigated the occurrence of genes and transcripts of ureC and amoA in Arctic samples from winter, spring and summer.
Pedneault, Estelle +4 more
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BMC Microbiology, 2021 Background Saline and alkaline stresses damages the health of soil systems. Meanwhile, little is known about how saline or alkaline stress affects soil nitrifier and denitrifier communities.
Jiaxin Guo +3 more
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Global Occurrence of Archaeal amoA Genes in Terrestrial Hot Springs [PDF]
Applied and Environmental Microbiology, 2008 ABSTRACT Despite the ubiquity of ammonium in geothermal environments and the thermodynamic favorability of aerobic ammonia oxidation, thermophilic ammonia-oxidizing microorganisms belonging to the crenarchaeota kingdom have only recently been described.
Chuanlun L, Zhang +14 more
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Aquarium nitrification revisited: Thaumarchaeota are the dominant ammonia oxidizers in freshwater aquarium biofilters. [PDF]
PLoS ONE, 2011 Ammonia-oxidizing archaea (AOA) outnumber ammonia-oxidizing bacteria (AOB) in many terrestrial and aquatic environments. Although nitrification is the primary function of aquarium biofilters, very few studies have investigated the microorganisms ...
Laura A Sauder +5 more
doaj +1 more source
Temporal and Spatial Coexistence of Archaeal and BacterialamoAGenes and Gene Transcripts in Lake Lucerne [PDF]
Archaea, 2013 Despite their crucial role in the nitrogen cycle, freshwater ecosystems are relatively rarely studied for active ammonia oxidizers (AO). This study of Lake Lucerne determined the abundance of bothamoAgenes and gene transcripts of ammonia-oxidizing archaea (AOA) and bacteria (AOB) over a period of 16 months, shedding more light on the role of both AO in
Vissers, E.W. +6 more
openaire +8 more sources