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 19 of 19 for “"Anaerobic growth"”.
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Interrogation of Yeast Responses to Anaerobic Growth Conditions at the Intact Protein Level Using Improved Top-Down Proteomics
… expressions determined including an aerobic and anaerobic isoform. Direct comparison of PTM patterns between two cell states was also accomplished through top-down proteomics.
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A taxonomic study of the genus Campylobacter
… are also presented for C. jejuni and C. coli. Growth at 25 and 42°C, sensitivity to nalidixic acid and cephalothin, growth in semisolid medium containing 1% glycine, 1% oxgall or 3.5% NaCl, growth in a semisolid minimal medium (MM), anaerobic growth in 0.1% trimethylamine-N-oxide (TMAO), H₂S …
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The effect of heat shock, growth atmosphere, and recovery atmosphere on the survival of Escherichia coli 0157:H7 to heat
… 2.1 over nonheat-shocked controls. Heat shock of anaerobically grown cells also resulted ina significant increase in mean D value over nonheat-shocked controls. Anaerobic growth itself resulted in an increase in the ability of the cells to survive the 55°C heat treatment when compared with …
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Trimethylamine-N-oxide reduction by alteromonas spp.
… acted as a terminal electron acceptor supporting anaerobic growth, but few studies have been performed with fish spoilage organisms. The work presented here describes some of the properties of TMAO reduction in typical fish spoilage bacteria, Alteromonas spp., and comparisons made with that of …
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The Expression of DNA Restriction-Modification Genes of ESCHERICHIA COLI K12
… Beta-gal activity was higher in aerobic than in anaerobic growth; at 30°C and 37°C than at 42°C; and in L-broth early log phase of the culture. than in minimal media. Potential future uses of these fusion mutants are discussed.</p>
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Oxygen Regulated Genes in Salmonella Typhimurium
… of oxd-2 was induced to high levels during anaerobic growth in an amino acid rich medium. The highest level was found in cells grown anaerobically in a medium containing serine as a carbon source and supplemented with aspartate, leucine, and threonine. oxd-2 expression was affected by …
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Metabolic engineering of yeast for xylose uptake and fermentation
… 1, exhibited slow but significant aerobic growth (p.1ma=0.031+0.022 h~1 and 0.081+0.052 h-1, respectively), establishing a baseline for further advancement. These engineered strains mentioned above were then used to initiate a three-stage evolutionary engineering, through aerobic and …
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Surface proteins of Finegoldia magna interacting with the human host
… pathogen and isolated from ~10% of all anaerobic infections. Reoccurring taxonomical changes and the anaerobic growth have contributed to the neglect of F. magna. The present thesis describes the identification and characterization of two novel surface proteins of F. magna. One of the …
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The regulation of genes of unknown function implicated in nitrosative stress tolerance in Escherichia coli K-12
… K-12 promoters, \(pyeaR\) and \(pogt\), during anaerobic growth. These promoters were identified from transcriptomic studies as being positively regulated by NarL independently of FNR, the master regulator of anaerobic respiration. Biochemical and genetic analyses presented in this study …
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Investigation of Escherichia coli [NiFe]-Hydrogenase Maturation
… important enzymes in bacteria and archaea for anaerobic growth and pathogenesis. The maturation of [NiFe]-hydrogenase requires at least seven dedicated accessory proteins to assemble and insert the components of the NiFe(CN)2CO catalytic site. The penultimate maturation step is the delivery of …
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Genome scale metabolic modelling to identify metabolic responses of resistant bacteria to antibiotic challenges
… media was an interesting observation. During anaerobic growth conditions, utilisation of L-aspartate as a substrate and fumarate as a terminal electron acceptor was also identified. A novel method comparing in silico knockouts in models and essential genes determined by transposon mutagenesis …
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Phenotypic, Physiological and Growth Interactions among Salmonella Serovars
… <strong>(chapter 1)</strong>. Understanding the growth of <em>Salmonella</em> serovars and strains is an important basis for more in depth research. In this case we studied <strong>a)</strong> the aerobic and anaerobic growth responses of multiple strains from six different serovars, …
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EVALUATION OF TWO ORAL PROBIOTIC PRODUCTS FOR MICROBIAL VIABILITY AND IN VITRO INHIBITION OF SELECTED PERIODONTAL BACTERIAL PATHOGENS.
… intermedia/nigrescens, in the presence of anaerobic growth conditions. Methods: Commercial lots of PerioBalanceÒ and EvoraPlusÒ tablets were aseptically removed from the product packaging with sterile forceps, dissolved into Möller’s VMG I anaerobic dispersion solution, plated onto …
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Nutritional modeling of bacterial infections : physiology and metabolism of Pseudomonas aeruginosa during growth in cystic fibrosis sputum
… of CF provides a complex and copious growth substrate. P. aeruginosa can grow to high densities in vivo (>10⁹ cells/ml lung sputum), and exacerbations associated with P. aeruginosa high density in vivo growth are primary contributors to CF morbidity and mortality. Surprisingly little …
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Demonstrating biocompatibility with supercritical CO₂ : biphasic cultivation of Bacillus spp. and probing acclimation mechanisms through proteome and lipid analysis
… wall and membrane alterations promote bacterial growth under scCO₂ by modulating the cell's microenvironment. (3): Global expression of proteins mediating cellular homeostasis in viable but non-growing (stationary-phase) populations acclimated to scCO₂ resembles a generalized profile of anaerobic …
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Optimising the Wider Energy Metabolome of Microbes Using Targeted UHPLC-MS/MS Present in Bio-Electrochemical Systems for Carbon Dioxide Conversion to Platform Chemicals
… <br/><br/>In S. cerevisiae, aerobic and anaerobic growth conditions, oxygen-shift experiments, and AMP supplementation were used to examine their effects on ethanol production, showing that timed AMP addition at the onset of stationary phase substantially increased ethanol output without …
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Mechanical handling effects on brewers' yeast
… response may be observed by a decrease growth rate (Cherry and Papoutsakis, 1988), decreased viability, vitality and fermentation performance (Basson et aI., 1996), release of enzymes (Stathopoulos and Hellums, 1985), the release of fine particles from the cell wall (Lewis and …
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<em>Actinobacillus pleuropneumoniae</em> ApxI and ApxII Toxin Regulation
… toxin production was examined in relation to growth phase, quorum sensing, and oxygen tension. Changes in the hemolytic activity, the production of extracellular toxin and/or levels of mRNA were measured. It was found that ApxII was regulated by growth-phase, with maximal production occurring …
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Physiologische Untersuchungen zur Regulation des Aminosäure-Stoffwechsels von Bacillus licheniformis DSM13
Im Gegensatz zu anderen Vertretern seiner Gattung ist Bacillus licheniformis fähig durch reine Fermentation zu wachsen. Unter Verwendung eines definierten Mediums konnte im Rahmen dieser Arbeit gezeigt werden, dass B. licheniformis DSM13 unter anaeroben Kultivierungsbedingungen neben Glucose auch …