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 8 of 8 for “"alternative electron acceptors"”.
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The effect of alternative electron acceptors on the subsurface biodegradation rates of methanol and tertiary-butyl alcohol
… the stimulatory effect of nitrate and sulfate (alternative electron acceptors) on the biodegradation of the alcohols in the absence of molecular oxygen. This study also evaluated the effect of adding hydroxide and bicarbonate to the groundwater as buffering agents in an attempt to raise the pH …
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Dynamics of soil processes under extreme meteorological boundary conditions - response of below-ground carbon, sulfur, and iron cycling in fen soils
… competition of the different terminal electron accepting processes for common electron donors was postulated. A detailed validation of this concept under natural or near-natural conditions is, however, still lacking to date. Furthermore, the processes that renew alternative electron …
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Enhancement of biodegradation of methanol and tertiary butyl alcohol in groundwater systems
… This was combined with the addition of alternative electron acceptors, nitrate and sulfate. Variation of pH in non-amended and sulfate-dosed (100 mg/L) microcosms did not enhance the biodegradation of either alcohol. Nitrate addition inhibited both methanol and TBA biodegradation at …
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The role of respiration in supporting cell proliferation
… crucial anabolic role by providing access to an electron acceptor in the form of molecular oxygen. Electron acceptor availability is required for maintaining NAD+/NADH homeostasis and supporting aspartate synthesis. In conditions where alternative electron acceptors are provided such that cells …
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Degradation of Chlorophenols in Swine Waste
… processes. Fermentation is a process in which electrons are transferred from one organic substrate to another and which results in incomplete degradation of organic compounds. Anaerobic respiration is a process in which organic substrates are degraded completely to CO2, but using substances …
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Metabolic regulation of denitrification in the opportunistic pathogen Pseudomonas aeruginosa
… allows P. aeruginosa to utilise N-oxides as alternative electron acceptors to enable maintenance of proton motive force and thus the generation of ATP under nutrient- and oxygen-limited scenarios, and may also act as a defence mechanism against nitrosative attack by host immune cells. …
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The Mechanism of Aerotaxis in SALMONELLA TYPHIMURIUM
… are unsuitable for analyzing the role of the electron transport system in aerotaxis. In this study the biochemical mechanism of aerotaxis and its relationship to other chemotaxis pathways in <em>Salmonella typhimurium</em> was explored with the aid of two new assays which imposed an oxygen …
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Elementary processes in layers of electron transporting Donor-acceptor copolymers : investigation of charge transport and application to organic solar cells
… have revolutionized the field of organic electronics over the last decade. Comprised of a electron rich and an electron deficient molecular unit, these copolymers facilitate the systematic modification of the material's optoelectronic properties. The ability to tune the optical band gap …