Results 21 to 30 of about 21,023 (196)

Cometabolism of Trihalomethanes by Nitrosomonas europaea [PDF]

Applied and Environmental Microbiology, 2005
ABSTRACT The ammonia-oxidizing bacterium Nitrosomonas europaea (ATCC 19718) was shown to degrade low concentrations (50 to 800 μg/liter) of the four trihalomethanes (trichloromethane [TCM], or chloroform; bromodichloromethane [BDCM]; dibromochloromethane [DBCM]; and tribromomethane [TBM], or bromoform ...
David G, Wahman, Lynn E, Katz, Gerald E, Speitel   +2 more
openaire   +2 more sources

Transcriptomic Response of Nitrosomonas europaea Transitioned from Ammonia- to Oxygen-Limited Steady-State Growth

mSystems, 2020
Ammonia-oxidizing microorganisms perform the first step of nitrification, the oxidation of ammonia to nitrite. The bacterium Nitrosomonas europaea is the best-characterized ammonia oxidizer to date. Exposure to hypoxic conditions has a profound effect on
Christopher J. Sedlacek, Andrew T. Giguere, Michael D. Dobie, Brett L. Mellbye, Rebecca V. Ferrell, Dagmar Woebken, Luis A. Sayavedra-Soto, Peter J. Bottomley, Holger Daims, Michael Wagner, Petra Pjevac   +10 more
doaj   +1 more source

Growth ofNitrosomonas europaeaon hydroxylamine [PDF]

FEMS Microbiology Letters, 1995
Hydroxylamine is an intermediate in the oxidation of ammonia to nitrite, but until now it has not been possible to grow Nitrosomonas europaea on hydroxylamine. This study demonstrates that cells of N. europaea are capable of growing mixotrophically on ammonia and hydroxylamine. The molar growth yield on hydroxylamine (4.74 g mol−1 at a growth rate of 0.
De Bruijn, P. (author), Van de Graaf, A.A. (author), Jetten, M.S.M. (author), Robertson, L.A. (author), Kuenen, J.G. (author)   +4 more
openaire   +2 more sources

Lost in translation: the quest for Nitrosomonas cluster 7‐specific amoA primers and TaqMan probes

Microbial Biotechnology, 2020
Summary The choice of primer and TaqMan probes to quantify ammonia‐oxidizing bacteria (AOB) in environmental samples is of crucial importance. The re‐evaluation of primer pairs based on current genomic sequences used for quantification of the amoA gene ...
Laura Orschler, Shelesh Agrawal, Susanne Lackner   +2 more
doaj   +1 more source

Small Sample Stress: Probing Oxygen-Deprived Ammonia-Oxidizing Bacteria with Raman Spectroscopy In Vivo

Microorganisms, 2020
The stress response of ammonia-oxidizing bacteria (AOB) to oxygen deprivation limits AOB growth and leads to different nitrification pathways that cause the release of greenhouse gases.
Ann-Kathrin Kniggendorf, Regina Nogueira, Somayeh Nasiri Bahmanabad, Andreas Pommerening-Röser, Bernhard Wilhelm Roth   +4 more
doaj   +1 more source

Evidences towards deciphering the mode of action of dimethylpyrazole-based nitrification inhibitors in soil and pure cultures of Nitrosomonas europaea

Chemical and Biological Technologies in Agriculture, 2022
Background Agriculture relies on the intensive use of synthetic nitrogen (N) fertilizers to maximize crop yields, which has led to the transformation of agricultural soils into high-nitrifying environments.
Adrián Bozal-Leorri, Mario Corrochano-Monsalve, Izargi Vega-Mas, Pedro M. Aparicio-Tejo, Carmen González-Murua, Daniel Marino   +5 more
doaj   +1 more source

Metabolic and Proteomic Responses to Salinity in Synthetic Nitrifying Communities of Nitrosomonas spp. and Nitrobacter spp.

Frontiers in Microbiology, 2018
Typically, nitrification is a two-stage microbial process and is key in wastewater treatment and nutrient recovery from waste streams. Changes in salinity represent a major stress factor that can trigger response mechanisms, impacting the activity and ...
Chiara Ilgrande, Baptiste Leroy, Ruddy Wattiez, Siegfried Elias Vlaeminck, Siegfried Elias Vlaeminck, Nico Boon, Peter Clauwaert   +6 more
doaj   +1 more source

Identification of bacteria responsible for Nitrification and its correlation with physicochemical properties of water resources. [PDF]

Research Journal of Applied Biotechnology, 2016
In this study, many findings were observed by monitoring seasonal variations of physical, chemical and microbiological characteristics of raw water of seven main canals used by Water Purification Plants in Kafr El-Sheikh governorate; those findings ...
Ibrahim Mousa, Manal Abdel-Rahman
doaj   +1 more source

Cometabolism of 17α-ethynylestradiol by nitrifying bacteria depends on reducing power availability and leads to elevated nitric oxide formation

Environment International, 2021
17α-ethynylestradiol (EE2) is a priority emerging contaminant (EC) in diverse environments that can be cometabolized by ammonia oxidizing bacteria (AOB). However, its transformation kinetics and the underlying molecular mechanism are unclear.
Qi Sheng, Ming Yi, Yujie Men, Huijie Lu
doaj   +1 more source

Dinitrogen oxide production by a mixed culture of nitrifying bacteria during ammonia shock loading and aeration failure [PDF]

, 2002
A number of experiments was conducted in order to establish if N2O in the exhaust gas from an aerobic consortium of nitrifiers could be used as an indicator for monitoring the nitrification process.
Stephenson, T., Stephenson, Tom, Burgess, J. E., Colliver, B. B., Burgess, Joanna E., Stuetz, Richard M., Colliver, Bettina B.   +6 more
core   +1 more source