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 6 of 6 for “"Ammonia monooxygenase"”.
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Ammonia-monooxygenase-mediated cometabolic biotransformation and abiotic transformation of micropollutants
… To further elucidate roles played by ammonia-oxidizing bacteria (AOB), and nitrite-oxidizing bacteria (NOB) that grow dependently on AOB, we investigated the biotransformation capabilities of an NOB pure culture (Nitrobacter sp.), and an AOB (Nitrosomonas europaea)/NOB co-culture for …
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Stream microbial communities along an agricultural gradient
… excess N into stream systems, predominantly as ammonia, which is transformed through nitrification into nitrate by prokaryotes that produce the ammonia monooxygenase enzyme (AMO). The Latah Creek watershed in WA State (USA) drains approximately 1178 km², of which half is agricultural. Because …
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Geomicrobiology of nitrogen in a coastal aquifer : isotopic and molecular methods to examine nitrification and denitrification in groundwater
… work shows two different populations of putative ammonia-oxidizing archaea (AOA) based on the ammonia monooxygenase gene (amoA), one shallow population most closely related to open ocean water column-like sequences and a deeper population that is more closely related to estuarine-like AOA. …
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Soil quality and nitrogen cycling dynamics altered by fertility amendments in intensively managed vegetable production systems
… and denitrification (PDA) activity, abundance of ammonia-oxidizing 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 …
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Microbial nitrogen-cycling and cooperation in the terrestrial subsurface
… indicate that non-assimilatory nitrogen-cycling (ammonia oxidation, nitrate, nitrite and nitric oxide reduction and denitrification) potential was prevalent regardless of site-specific physicochemistry, but pathway relative abundances differed. Anammox helps to drive N loss from aquatic systems, …
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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
The application of nitrogenous fertilizer to agricultural soil has potentially large impacts on environmental quality, including large scale emission of the potent greenhouse gas nitrous oxide and runoff of nitrates. Through their metabolic activities, including nitrification, denitrification and …