Isolation of a moderate halophilic ammonia-oxidizing bacterium, Nitrosococcus mobilis nov. sp.

1976 ◽  
Vol 107 (3) ◽  
pp. 277-282 ◽  
Author(s):  
Hans-Peter Koops ◽  
Heinz Harms ◽  
Hella Wehrmann
Keyword(s):  
Ammonia Oxidizing Bacterium ◽  
Nitrosococcus Mobilis

Whole-genome analysis of the ammonia-oxidizing bacterium, Nitrosomonas eutropha C91: implications for niche adaptation

2007 ◽  
Vol 9 (12) ◽  
pp. 2993-3007 ◽  
Author(s):  
Lisa Y. Stein ◽  
Daniel J. Arp ◽  
Paul M. Berube ◽  
Patrick S. G. Chain ◽  
Loren Hauser ◽  
...  
Keyword(s):  
Genome Analysis ◽  
Whole Genome ◽  
Whole Genome Analysis ◽  
Niche Adaptation ◽  
Ammonia Oxidizing Bacterium

scholarly journals Biogeochemical controls and isotopic signatures of nitrous oxide production by a marine ammonia-oxidizing bacterium

2010 ◽  
Vol 7 (2) ◽  
pp. 3019-3059 ◽  
Author(s):  
C. H. Frame ◽  
K. L. Casciotti
Keyword(s):  
Nitrous Oxide ◽  
Stratospheric Ozone ◽  
N2o Production ◽  
Isotopic Signatures ◽  
Ammonium N ◽  
O2 Concentration ◽  
Nitrous Oxide Production ◽  
Global Estimates ◽  
Cell Densities ◽  
Ammonia Oxidizing Bacterium

Abstract. Nitrous oxide (N2O) is a trace gas that contributes to greenhouse warming of the atmosphere and stratospheric ozone depletion. The N2O yield from nitrification (moles N2O-N produced/mole ammonium-N consumed) has been used to estimate marine N2O production rates from measured nitrification rates and global estimates of oceanic export production. However, the N2O yield from nitrification is not constant. Previous culture-based measurements indicate that N2O yield increases as oxygen (O2) concentration decreases and as nitrite (NO2−) concentration increases. These results were obtained in substrate-rich conditions and may not reflect N2O production in the ocean. Here, we have measured yields of N2O from cultures of the marine β-proteobacterium Nitrosomonas marina C-113a as they grew on low-ammonium (50 μM) media. These yields were lower than previous reports, between 4×10−4 and 7×10−4 (moles N/mole N). The observed impact of O2 concentration on yield was also smaller than previously reported under all conditions except at high starting cell densities (1.5×10

Aliibacillus thermotolerans gen. nov., sp. nov.: a thermophilic and heterotrophic ammonia-oxidizing bacterium from compost

2018 ◽  
Vol 200 (9) ◽  
pp. 1357-1363 ◽  
Author(s):  
Jie Xu ◽  
Xiu-Hong Xu ◽  
Meng-Qi Men ◽  
Qing-Xin Meng ◽  
Ben-Shu Xu
Keyword(s):  
Ammonia Oxidizing Bacterium

A comparitive study of ammonia-oxidizing bacteria in lab-scale industrial wastewater treatment reactors

2003 ◽  
Vol 48 (3) ◽  
pp. 17-24 ◽  
Author(s):  
A.K. Rowan ◽  
G. Moser ◽  
N. Gray ◽  
J.R. Snape ◽  
D. Fearnside ◽  
...  
Keyword(s):  
Wastewater Treatment ◽  
Industrial Wastewater ◽  
Denaturing Gradient Gel Electrophoresis ◽  
Direct Sequencing ◽  
Ammonia Oxidizing Bacteria ◽  
Industrial Wastewater Treatment ◽  
Phylogenetic Affiliation ◽  
Gradient Gel Electrophoresis ◽  
Nitrosococcus Mobilis ◽  
Ammonia Oxidising Bacteria

The diversity and community structure of the b-proteobacterial ammonia oxidising bacteria (AOB) in a range of different lab-scale industrial wastewater treatment reactors were compared. Three of the reactors treat waste from mixed domestic and industrial sources whereas the other reactor treats waste solely of industrial origin. PCR with AOB selective primers was combined with denaturing gradient gel electrophoresis to allow comparative analysis of the dominant AOB populations and the phylogenetic affiliation of the dominant AOB was determined by cloning and sequencing or direct sequencing of bands excised from DGGE gels. Different AOB were found within and between different reactors. All AOB sequences identified were grouped within the genus Nitrosomonas. Within the lab-scale reactors there appeared to be selection for a low diversity of AOB and predominance of a single AOB population. Furthermore, the industrial input in both effluents apparently selected for salt tolerant AOB, most closely related to Nitrosococcus mobilis and Nitrosomonas halophila.

scholarly journals Isolation and Characterization of Two Cryptic Plasmids in the Ammonia-Oxidizing Bacterium Nitrosomonas sp. Strain ENI-11

1999 ◽  
Vol 181 (11) ◽  
pp. 3375-3381 ◽  
Author(s):  
Akira Yamagata ◽  
Junichi Kato ◽  
Ryuichi Hirota ◽  
Akio Kuroda ◽  
Tsukasa Ikeda ◽  
...  
Keyword(s):  
Heavy Metal Resistance ◽  
Metal Resistance ◽  
Nucleotide Sequences ◽  
Open Reading Frames ◽  
Homologous Region ◽  
Significant Similarity ◽  
Physical Maps ◽  
Isolation And Characterization ◽  
Ammonia Oxidizing Bacterium ◽  
Cryptic Plasmids

ABSTRACT Two plasmids were discovered in the ammonia-oxidizing bacteriumNitrosomonas sp. strain ENI-11, which was isolated from activated sludge. The plasmids, designated pAYS and pAYL, were relatively small, being approximately 1.9 kb long. They were cryptic plasmids, having no detectable plasmid-linked antibiotic resistance or heavy metal resistance markers. The complete nucleotide sequences of pAYS and pAYL were determined, and their physical maps were constructed. There existed two major open reading frames, ORF1 in pAYS and ORF2 in pAYL, each of which was more than 500 bp long. The predicted product of ORF2 was 28% identical to part of the replication protein of a Bacillus plasmid, pBAA1. However, no significant similarity to any known protein sequences was detected with the predicted product of ORF1. pAYS and pAYL had a highly homologous region, designated HHR, of 262 bp. The overall identity was 98% between the two nucleotide sequences. Interestingly, HHR-homologous sequences were also detected in the genomes of ENI-11 and the plasmidless strain Nitrosomonas europaea IFO14298. Deletion analysis of pAYS and pAYL indicated that HHR, together with either ORF1 or ORF2, was essential for plasmid maintenance in ENI-11. To our knowledge, pAYS and pAYL are the first plasmids found in the ammonia-oxidizing autotrophic bacteria.

scholarly journals Cometabolism of Trihalomethanes by Nitrosomonas europaea

2005 ◽  
Vol 71 (12) ◽  
pp. 7980-7986 ◽  
Author(s):  
David G. Wahman ◽  
Lynn E. Katz ◽  
Gerald E. Speitel
Keyword(s):  
Drinking Water ◽  
Rate Constants ◽  
Degradation Kinetics ◽  
Drinking Water Treatment ◽  
Nitrosomonas Europaea ◽  
Ammonia Nitrogen ◽  
Degradation Rates ◽  
Ammonia Oxidizing Bacterium ◽  
Treated Drinking Water ◽  
Bromine Substitution

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) commonly found in treated drinking water. Individual trihalomethane (THM) rate constants ( \batchmode \documentclass[fleqn,10pt,legalpaper]{article} \usepackage{amssymb} \usepackage{amsfonts} \usepackage{amsmath} \pagestyle{empty} \begin{document} \(k_{1_{THM}}\) \end{document} ) increased with increasing THM bromine substitution, with TBM > DBCM > BDCM > TCM (0.23, 0.20, 0.15, and 0.10 liters/mg/day, respectively). Degradation kinetics were best described by a reductant model that accounted for two limiting reactants, THMs and ammonia-nitrogen (NH3-N). A decrease in the temperature resulted in a decrease in both ammonia and THM degradation rates with ammonia rates affected to a greater extent than THM degradation rates. Similarly to the THM degradation rates, product toxicity, measured by transformation capacity (Tc ), increased with increasing THM bromine substitution. Because both the rate constants and product toxicities increase with increasing THM bromine substitution, a water's THM speciation will be an important consideration for process implementation during drinking water treatment. Even though a given water sample may be kinetically favored based on THM speciation, the resulting THM product toxicity may not allow stable treatment process performance.

scholarly journals Impacts of anthropogenic gadolinium on the activity of the ammonia oxidizing bacterium Nitrosomonas europaea

Chemosphere ◽  
2020 ◽  
Vol 257 ◽  
pp. 127250
Author(s):  
Yoshiko Fujita ◽  
Michelle Walton ◽  
Gaurav Das ◽  
Alice Dohnalkova ◽  
Gary Vanzin ◽  
...  
Keyword(s):  
Nitrosomonas Europaea ◽  
Ammonia Oxidizing Bacterium ◽  
Anthropogenic Gadolinium

scholarly journals Complete genome of Nitrosospira briensis C-128, an ammonia-oxidizing bacterium from agricultural soil

2016 ◽  
Vol 11 (1) ◽  
Author(s):  
Marlen C. Rice ◽  
Jeanette M. Norton ◽  
Frederica Valois ◽  
Annette Bollmann ◽  
Peter J. Bottomley ◽  
...  
Keyword(s):  
Complete Genome ◽  
Agricultural Soil ◽  
Ammonia Oxidizing Bacterium
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