Results 1 to 10 of about 19,357 (255)
Phanerozoic radiation of ammonia oxidizing bacteria [PDF]
Scientific Reports, 2021 The modern nitrogen cycle consists of a web of microbially mediated redox transformations. Among the most crucial reactions in this cycle is the oxidation of ammonia to nitrite, an obligately aerobic process performed by a limited number of lineages of ...
L. M. Ward, D. T. Johnston, P. M. Shih
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Role of Nitric Oxide in Hydroxylamine Oxidation by Ammonia-Oxidizing Bacteria. [PDF]
Appl Environ Microbiol, 2023 Ammonia oxidation by chemolithoautotrophic ammonia-oxidizing bacteria (AOB) is thought to contribute significantly to global nitrous oxide (N 2 O) emissions and leaching of oxidized nitrogen, particularly through their activity in nitrogen (N)-fertilized agricultural production systems.
Choi E, Chaudhry SI, Martens-Habbena W.
europepmc +3 more sources
Biogeography of anaerobic ammonia-oxidizing (anammox) bacteria [PDF]
Frontiers in Microbiology, 2014 Anaerobic ammonia-oxidizing (anammox) bacteria are able to oxidize ammonia and reduce nitrite to produce N2 gas. After being discovered in a wastewater treatment plant (WWTP), anammox bacteria were subsequently characterized in natural environments ...
Puntipar eSonthiphand +2 more
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Dating Ammonia-Oxidizing Bacteria with Abundant Eukaryotic Fossils. [PDF]
Mol Biol EvolAbstract Evolution of a complete nitrogen cycle relies on the onset of ammonia oxidation, which aerobically converts ammonia to nitrogen oxides. However, accurate estimation of the antiquity of ammonia-oxidizing bacteria (AOB) remains challenging because AOB-specific fossils are absent and bacterial fossils amenable to calibrate ...
Liao T +4 more
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Ammonia oxidizers offset acidification stress via adaptive substrate affinity in aquatic ecosystems [PDF]
Nature CommunicationsAmmonia oxidation, a critical nitrogen cycle process, exhibits contradictory responses to aquatic acidification, and the underlying mechanism remains unresolved. Here, through pH manipulation experiments across diverse ecosystems and with a model ammonia-
Senwei Tong +6 more
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Characterization of a long overlooked copper protein from methane- and ammonia-oxidizing bacteria [PDF]
Nature Communications, 2018 Methane- and ammonia-oxidizing bacteria use the integral membrane, copper-dependent enzymes particulate methane monooxygenase (pMMO) and ammonia monooxygenase (AMO) to oxidize methane and ammonia.
Oriana S. Fisher +12 more
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Comparison of Nitrogen Oxide Metabolism among Diverse Ammonia-Oxidizing Bacteria. [PDF]
Front Microbiol, 2016 Ammonia-oxidizing bacteria (AOB) have well characterized genes that encode and express nitrite reductases (NIR) and nitric oxide reductases (NOR). However, the connection between presence or absence of these and other genes for nitrogen transformations with the physiological production of nitric oxide (NO) and nitrous oxide (N2O) has not been tested ...
Kozlowski JA, Kits KD, Stein LY.
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Immobilization of ammonia-oxidizing bacteria by polyvinyl alcohol and sodium alginate [PDF]
Brazilian Journal of Microbiology, 2017 Dong Y, Zhang Y, Tu B.
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Shifts of ammonia-oxidation process along salinity gradient in an estuarine wetland
Ecological Indicators, 2022 Ammonia-oxidizing bacteria (AOB) and ammonia-oxidizing archaea (AOA) play an important role in nitrogen (N) cycling of the estuarine sediments. However, the shifts of potential ammonia oxidation rates (PARs) of AOA and AOB along different salinity ...
Weifang Hu +6 more
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Frontiers in Microbiology, 2021 The discovery of ammonia-oxidizing archaea (AOA) and complete ammonia-oxidizing (comammox) bacteria widespread in terrestrial ecosystems indicates an important role of these organisms in terrestrial nitrification.
Jonathan Rodriguez +6 more
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