Results 161 to 170 of about 6,257 (199)

Ammonia oxidizers offset acidification stress via adaptive substrate affinity in aquatic ecosystems. [PDF]

Nat Commun
Tong S, Shen H, Han LL, Tang JM, Wan XS, Zheng ZZ, Kao SJ.   +6 more
europepmc   +1 more source

Unique characteristics of acid-tolerant comammox bacteria revealed by multi-omics analyses. [PDF]

ISME Commun
Zhang T, Pan J, Palomo A, Ouyang Z, Wen X, Li J, Wang C, Zheng M.   +7 more
europepmc   +1 more source

Correction to: Impact of pesticides on soil health: identification of key soil microbial indicators for ecotoxicological assessment strategies through meta-analysis. [PDF]

FEMS Microbiol Ecol
europepmc   +1 more source

Genetic potential for N₂O metabolism in tree tissues: Insights into nitrogen cycling gene abundance and nosZ diversity across trees

Thiyagarasaiyar K, Paul D, Kerttula J, keski-karhu M, Soosaar K, Mander Ü, Hallin S, Machacova K, Pumpanen J, Siljanen HM.   +9 more
europepmc   +1 more source

Quantification of amoA gene abundance and their amoA mRNA levels in activated sludge by real-time PCR

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, Hendrikus Laanbroek, Laanbroek Hendrikus J   +2 more
exaly   +8 more sources

Detection and quantification of expression of amoA by competitive reverse transcription-PCR

Water Science and Technology, 2002
Ammonia oxidation by chemolithoautotrophic ammonia-oxidizing bacteria is an important step in the biological nitrogen removal process. The first conversion step, the oxidation of ammonia to hydroxylamine is catalyzed by ammonia monooxygenase (AMO).
Inamori Y, Hirata A, Matsumura M
exaly   +4 more sources

Real-time monitoring of ammonia-oxidizing activity in a nitrifying biofilm by amoA mRNA analysis

Water Science and Technology, 2002
Ammonia monooxygenase encoding mRNA (amoA mRNA) transcription in the wastewater treatment process was investigated using reverse transcription PCR (RT-PCR) as the model indicating specific function and activity in nitrifying processes.
Hirata A, Tsuneda S
exaly   +4 more sources

The influence of salinity and ammonium levels on amoA mRNA expression of ammonia-oxidizing prokaryotes

Water Science and Technology, 2012
This study investigated the influence of salinity and ammonium levels on ammonia-oxidizing bacteria (AOB) and archaea (AOA) by monitoring their amo subunit A (amoA) messenger RNA (mRNA) expression. The aerobic mini-continuous stirred-tank reactors (mini-CSTRs) were operated for 48 h under different salinity or ammonium levels.
Toshikazu Fukushima
exaly   +3 more sources

Spatial distribution of Bacteria and Archaea and amoA gene copy numbers throughout the water column of the Eastern Mediterranean Sea

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, Daniele De Corte, Taichi Yokokawa   +2 more
exaly   +2 more sources