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 20 of 33 for “"Anaerobic metabolism"”.
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Omics-based characterization of complex anaerobic metabolism in methanogenic wastewater treatment
… biosphere lay ecosystems teeming with “anaerobic” prokaryotes thriving in the absence of O2. As anaerobes exhaust compounds for favorable respiration (e.g., NO3- and SO42-), microorganisms resort to fermentation and respiration of H+ and CO2. Across Earth, microbial communities under …
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Non-Invasive Detection of Anaerobic Metabolism in Exercising Muscle Using Proton MRI
The second, and major, component of this thesis concerned the exercise-induced increases the 1H T2 of muscle water. The hypotheses were tested that the T2 increase results from increased intracellular volume (VI), decreased intracellular pH (pHI), and/or changes in magnetization transfer (MT) or …
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Regulation of Glycogenolysis in Anaerobic Skeletal Muscle
Functional compartmentation of anaerobic metabolism was demonstrated in intact tissue. Force-independent ATP utilization, primarily the Ca 2+ pump of the sarcoplasmic reticulum, preferentially uses ATP derived from glycogenolysis. ATP produced by creatine kinase is used mostly by force-dependent …
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Aspects of the respiratory metabolism of juvenile rainbow trout (Oncorhynchus mykiss) at sustained swimming speeds
… relationship was examined. The contribution of anaerobic metabolism at sustained swimming speeds was investigated.
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The Search for Novel Anthelmintic Targets: Characterizing Alternative Metabolic Pathways in Caenorhabditis elegans
… of low to no oxygen in their hosts, but their anaerobic metabolism has yet to be fully characterized. The goal of this project has been to characterize the anaerobic metabolism of C. elegans, a roundworm closely related to a large class of parasitic worms, by combining systematic metabolomics …
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Novel mitochondrial metabolism in excavate protists
… et al., 2010) revealed a surprising variety of anaerobic metabolic pathways potentially available to the cell, when encountering anoxic conditions. Using T. brucei as a host for heterologous expression, I tested the mitochondrial candidature of several of these N. gruberi novel proteins …
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The metabolic rate of Xenopus laevis: Interactional influences of development and short term hypoxia
… lactate contents were also assayed to assess anaerobic metabolic supplementation of aerobic metabolism. Larvae up to stage 57 were oxygen conformers. After stage 58, larvae were oxygen regulators. Anaerobic metabolism was used to supplement aerobic metabolism only by animals older than stage …
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The influence of controlled frequency breathing on blood lactate levels during graded front crawl stroke swimming
… oxygen availability to the body and stimulate anaerobic metabolism. During CFB, a swimmer restricts breathing to one breath every six, seven, or even eight strokes per breath. The purpose of this study was to determine tb.e influen<;:e of CFB on blood lactate, heart rate, and stroke rate during …
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The Thermal Performance and Tolerance of Tropical cleaner shrimp (Lysmata amboinensis)
… at critically low limits (CTmin = 7.5°C), and anaerobic metabolism was not exclusive to temperatures near CTmax or CTmin. Chapter Three is a call for collaborative research initiatives that align scientific inquiry with industry goals to produce pragmatic outcomes, based on the results of the …
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Further characterisation of the envelope stress responses of Salmonella Typhimurium
… vacuole and genes contributing towards anaerobic metabolism. This work provides the foundations for investigating the contribution of ZraSR to Salmonella hostpathogen interactions and the potential this newly characterised ESR has as a target for investigating Salmonella survival within …
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Differential membrane-type matrix metalloproteinase expression in phenotypically defined breast cancer cell lines: Comparison of MT-MMP expression in environmentally-challenged 2D monolayer cultures and 3D multicellular tumour spheroids
… and spheroid cells exhibited changes in anaerobic metabolism and lipid synthesis, respectively, whereas autophagy resulted in up-regulation of cellular component disassembly. The result indicated multiple drivers of MT1-MMP expression in MCF-7 cells.
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A Dose -Response Investigation of Patterns and Correlates of Affective Responses to Acute Exercise: The Dual -Mode Hypothesis
… cues associated with the transition to anaerobic metabolism and how to regulate the intensity of their efforts accordingly."
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Carbon and electron flow via methanogenesis, So₄²⁻, NO₃⁻ and Fe³⁺ reduction in the anoxic hypolimnia of upper Mystic Lake
… were used to estimate the rates of the various anaerobic decomposition reactions during spring and fall stratification in Upper Mystic Lake. The equivalent electron and carbon flow of the reactions were also calculated to obtain a mass balance within the hypolimnia of UML. From the calculations, …
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The effects of augmentation of coarse particulate organic matter in hyporheic sediments
… quantity and quality of organic matter affects metabolism and nutrient retention in the hyporheic zone of a low-order Appalachian stream. We hypothesized that hyporheic metabolic rates should increase with organic matter additions because the biotic activity is limited by organic matter …
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Energy levels and anaerobic endproducts in the brains of two species of teleost fish at death in anoxic water
… energy levels and storage and the use of anaerobic metabolism in fish brains following exposure to anoxia are lacking. Rainbow trout (<u>Salmo gairdneri</u>) and brown bullhead catfish (<u>Ictalurus nebulosus</u>) occupy ecologically distinct habitats. Their tolerance of anoxia is …
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Applications of Mass Spectrometry to Analysis of Prodiginines, Bioactivated Methylenedianiline Intermediates, and Hypoxia Induced Changes in the Zebrafish Skeletal Muscle Proteome
… proteins involved in mitochondrial oxidative metabolism are down-regulated, whereas glycolytic enzymes are up-regulated to compensate for the loss of ATP synthesis in aerobic metabolism. The up-regulation of two spots identified as hemoglobin variants was also observed. These protein …
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The NADP-dependent glutamate dehydrogenase of Giardia lamblia: a study of function, gene structure, and expression
… most primitive eukaryotes known. Giardia has an anaerobic metabolism that uses a NADP-dependent glutamatede hydrogenase (GDH) along with alanine aminotransferase to maintain an intracellular balance of NAD(P)+-NAD(P)H through the conversion of pyruvate to alanine. In the initial part of this …
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Linking microbes and climate : insights into the marine oxygen and nitrogen cycles with microbial metabolic functional types
… metabolic functional types, which represent metabolisms as a function of their underlying redox chemistry and physiology. In Chapter 2, I use a simple model to predict the limiting oxygen concentration of aerobic microbial growth in an ecosystem. This limiting concentration is in the …
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Ontogenetic Changes and Environmental Hypoxia: Responses of Two Fish Species to Low Oxygen Concentrations at Early Life Stages
… concentration below which trout larvae utilize anaerobic metabolism to provide additional energy. Lactate dehydrogenase activity increased as the rainbow trout larvae aged, suggesting that they develop an anaerobic capacity which could be used to provide additional energy during hypoxia. The …
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The role of the muscle metaboreflex in patients with chronic disease
… a constant supply of oxygen for the aerobic metabolism of carbohydrate and fat, and regulation of the blood supply to muscle during exercise is therefore critical. Heart rate, stroke volume and minute ventilation all increase during exercise, and sympathetic vasoconstriction diverts blood to …
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