Results 171 to 180 of about 2,518,592 (205)
Water Science and Technology, 2004 The transcription level of amoA mRNA encoding a subunit of ammonia monooxygenase (AMO) in ammonia-oxidizing bacteria (AOB) was quantified by reverse transcription-polymerase chain reaction (RT-PCR) methods in combination with real-time PCR technology ...
Harada H
exaly +4 more sources
Numerical Relationships Between Archaeal and Bacterial amoA Genes Vary by Icelandic Andosol Classes [PDF]
Microbial Ecology, 2017 Bacterial amoA genes had not been detectable by qPCR in freshly sampled Icelandic Andosols thus far. Hence, a new primer set yielding shorter gene fragments has been designed to verify the absence of ammonia-oxidizing bacteria in different Icelandic ...
Mariet Hefting +2 more
exaly +8 more sources
Geomicrobiology Journal, 2011 Although the presence and activity of ammonia-oxidation archaea (AOA) and ammonia-oxidation bacteria (AOB) were observed in thermophilic habitats recently, their existence in the geothermal subterranean oil reservoirs is still not available.
Hui Li, Bo-Zhong Mu
exaly +5 more sources
ISME Journal, 2008 Until recently, ammonia oxidation, a key process in the global nitrogen cycle, was thought to be mediated exclusively by a few bacterial groups. It has been shown now, that also Crenarchaeota are capable to perform this initial nitrification step.
Gerhard J Herndl +2 more
exaly +2 more sources
Journal of Industrial Microbiology and Biotechnology, 2010 A population shift of ammonia-oxidizing bacteria (AOB) was described within a bench-scale activated sludge process treating an industrial wastewater in a previous report (Kuo et al. in Environ Eng Sci 23:507-520, 2006). In this investigation, transcriptional levels (amoA mRNA-based) of the three AOB groups (i.e., RI-27, B2-3, and Nitrosomonas nitrosa ...
Gary S Sayler +2 more
exaly +3 more sources
Diversity Analysis for Archaeal amoA Gene in Marine Sediment of Svalbard, Arctic Circle [PDF]
Korean Journal of Microbiology, 2014 The ecosystem of the Arctic region has been increasingly affected by global warming. Archaeal ammonia monooxygenase alpha subunit coding gene (amoA) which is a key enzyme for nitrification was used to investigate the effect of runoff water of ice melt on microbial community of nitrogen cycle.
Soo-Je Park, Sung-Keun Rhee
exaly +2 more sources
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Journal of Biotechnology, 2003
In this study, ammonia-oxidizing bacteria present in biofilms resulting from a nitrifying reactor were detected by both a conventional FISH technique and an original in situ PCR technique. Both techniques showed that ammonia-oxidizing bacteria were found near the surface of the biofilms. However, after the biofilm had been exposed to 2 weeks of ammonia
Tatsuhiko, Hoshino +3 more
openaire +2 more sources
In this study, ammonia-oxidizing bacteria present in biofilms resulting from a nitrifying reactor were detected by both a conventional FISH technique and an original in situ PCR technique. Both techniques showed that ammonia-oxidizing bacteria were found near the surface of the biofilms. However, after the biofilm had been exposed to 2 weeks of ammonia
Tatsuhiko, Hoshino +3 more
openaire +2 more sources
The evolution of the AMOA, PMOA and BMOA genes measured by ka/ks ratios.
Proceedings of the West Virginia Academy of Science, 2016The copper-containing membrane-bound monooxygenase enzyme family consists of enzymes facilitating the oxidation of methane (catalyzed by particulate methane monooxygenase, pMMO) and ammonia (catalyzed by ammonia monooxygenase, AMO), in both aerobic and anaerobic methanotrophs and nitrifiers, respectively, and the oxidation of C2-10 alkanes (catalyzed ...
Evan Lau, Daniel Lukich, Tuan Le
openaire +1 more source
FEMS Microbiology Ecology, 2010 The ecological characteristics of amoA-encoding archaea (AEA) in deep-sea sediments are largely unsolved. This paper aimed to study the diversity, structure, distribution and abundance of the archaeal community and especially its AEA components in the ...
Martin Gunter Klotz +2 more
exaly +2 more sources
Polygenic analysis of ammonia-oxidizing bacteria using 16S rDNA, amoA, and amoB genes.
International microbiology : the official journal of the Spanish Society for Microbiology, 2005Encontrar un marcador molecular único capaz de proporcionar rápidamente información filogenética rigurosa y útil facilitaría evaluación de la diversidad de las bacterias oxidadoras de amoníaco en muestras ambientales. En esta clase de estudios no se puede utilizar simultáneamente más que uno de los marcadores disponibles.
Calvó, Laia +3 more
openaire +5 more sources