Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 9 of 9 for “"Nitrous oxide reductase"”.
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Structural characterization of the two copper proteins nitrous oxide reductase from Pseudomonas stutzeri and laccase Lcc5 from Coprinopsis cinerea
Obwohl die Reduktion von Distickstoffoxid (N2O) stark exergonisch ist, verhindert eine hohe Aktivierungsenergie eine spontane Reaktion. Wie Distickstoff benötigt N2O ein komplexes Metallzentrum, um aktiviert zu werden. Das einzige bekannte Enzym, welches die Reduktion von N2O zu N2 katalysieren …
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Chemolithotrophic nitrate dependent growth of Rhizobium japonicum on carbon monoxide and its relationship to hydrogenase activity
… japonicum occurred in the presence of carbon monoxide with nitrate serving as the electron acceptor. Under conditions where the atmospheric concentrations of CO were varied; the cells grew in up to 50% (v/v) CO. Optimum growth was observed in the presence of 20-30% CO. Under these conditions …
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Endogenous production and detoxification of a potent cytotoxin, nitric oxide, in Salmonella enterica serovar Typhimurium and Escherichia coli
… In addition, our results indicate that a weak nitrous oxide reductase exists in Salmonella; a process that was believed to be restricted to certain soil bacteria, archaea and fungi that possess the enzyme NosZ. Furthermore, the contribution of selected NsrR regulon genes, to endogenous N2O …
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Intact soil core experiments reveal that temperature and depth influence microbial community function and impact the fate of nitrogenous fertilizer amendments
… scale emission of the potent greenhouse gas nitrous oxide and runoff of nitrates. Through their metabolic activities, including nitrification, denitrification and dissimilatory nitrate reduction to ammonium (DNRA), soil microbial communities play an active role in determining the fate of …
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Templating Metal Clusters via Resorcinarene- and Cyclen- Based Ligand Platforms
… Haber-Bosch process. Additionally, the Nitrous Oxide reductase presents a Cuz/Cuz* site that facilitates the reduction of Nitrous Oxide to environmentally benign forms. At the heart of metalloenzyme function are complex polynuclear clusters capable of storing and delivering multiple …
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Microbial community dynamics in denitrifying biofilters receiving agricultural drainage
… Length Polymorphism (T-RFLP) of nosZ (one of the nitrous oxide reductase genes), and fungal ARISA (FARISA) was used to determine fungal community structure. Spatial and temporal results from the biofilter studies have provided valuable insight into how microbial communities, essential to the …
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Soil quality and nitrogen cycling dynamics altered by fertility amendments in intensively managed vegetable production systems
… archaea (AOA), bacteria (AOB), nitrite reductases (nirK and nirS) and nitrous oxide reductase (nosZ) genes, and community structure of bacterial ammonia monooxygenase (amoA) and nirK were quantified in bulk and rhizosphere soil samples collected from open field plots. In 2011, chard …
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Fate of metals in presence of minerals and mineral-organic assemblages
… of greenhouse gases, such as methane (CH4) and nitrous oxide (N2O), into the atmosphere. The behavior, mobility, and bioavailability of metals in water systems are controlled by their interactions with mineral phases and mineral-organic assemblages. Understanding the reactivity of metals with …
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Development of techniques for the assessment of denitrification in New Zealand soils
… due to denitrification occur as nitrogen and nitrous oxide. Detection of nitrous oxide evolution is possible by several methods including gas chromatography, mass spectrometry and infra-red analysis. Several techniques have been proposed for direct N₂0 measurements in the field. Measurement of …