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Creator:: Ghimire, Rama D.
Abstract:: The objective of this study was to examine the variation among ammonia-oxidizing and denitrifying communities in soils of a natural Fennoscandian boreal forest and of a forest with a long history of fertilization with different levels of nitrogen (N), and to examine whether there are any changes in the microbial...
Resource Type:: Masters Thesis
Full Text:: Communities of Ammonia-Oxidizing and Denitrifying Bacteria in Fennoscandian Boreal Forest Soils

Creator:: Bulla, Lee A.
Abstract:: Denitrification is classically defined as the microbial reduction of nitrate and nitrite with the liberation of molecular nitrogen and, in some instances, nitrous oxide. The sequence of reactions in which nitrogen is evolved as an end-product is essentially a respiratory mechanism in which nitrate and/or nitrite replaces molecular oxygen. The...
Resource Type:: Dissertation
Full Text:: energy production of denitrifying bacteria has been under investigation recently by Hadjipetroa and

Creator:: Vangnai, Somsak
Resource Type:: Dissertation
Full Text:: dissimilatory reduction of nitrate and nitrite. Alexander (1961) listed nine species of denitrifying bacteria

Creator:: Spangler, William Jan
Resource Type:: Dissertation
Full Text:: professor) Pseudomonas stutzeri and other denitrifying bacteria are able to grow under anaerobic

Creator:: Abdel-Warith, Ahmed S.
Abstract:: This study involves the development of a biofilm reactor that supports growth of a deep biofilm on a gas permeable membrane. The reactor solution is not aerated, and oxygen is supplied through the membrane. The reactor is termed a substratum-aerated-biofilm reactor or SAB. With adequate concentrations of electron-donors and electron-acceptors,...
Resource Type:: Dissertation
Full Text:: starting the acetate feeds, the SABs were inoculated with denitrifying bacteria that were grown in a 2

Creator:: Rich, Jeremy J.
Abstract:: Few studies have directly compared denitrifying community composition and activities in soils by coupling molecular-genetic techniques and traditional measures of denitnfication. I investigated communities of denitrifying bacteria from adjacent meadow and forest soils in the Cascade Mountains, Oregon. A key gene in the denitrification pathway, N₂O reductase (nosZ), served as...
Resource Type:: Dissertation
Full Text:: and Activities of Denitrifying Bacteria in Soils Abstract approved: Dav4 Few studies have directly

Creator:: Burton, Marci S.
Abstract:: Nitrification and denitrification are major biological processes transforming nitrogen (N) in soils to plant available N, highly leachable nitrate (NO₃⁻) and gaseous N oxides. Although many studies in the past have studied N cycling communities, the effect of increased N inputs on ammonia-oxidizer and denitrifier population dynamics is still under...
Resource Type:: Masters Thesis
Full Text:: of these N products by nitrifying and denitrifying bacteria at a soil population level is needed

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