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Showing 1 to 20 of 62 for “"anaerobe"”.
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The Production and Germination Requirements of Putrefactive Anaerobe 3679 Spores
Made available in DSpace on 2014-12-05T19:06:42Z (GMT). No. of bitstreams: 1 0019803.pdf: 4050940 bytes, checksum: 2c03772e3edc0b301f7e89934638eeea (MD5) Previous issue date: 1956
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Proteolytic Activity of Ruminal Bacteria: Studies With Butyrivibrio Fibrisolvens (Protease, Anaerobe, Protein)
The proteolytic activity of the ruminal anaerobe Butyrivibrio fibrisolvens was examined using azocasein degradation to monitor activity. Growing cells of B. fibrisolvens produced an extracellular proteolytic activity and the rate of enzyme synthesis largely paralleled growth. Protease production …
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Effects of Methyl Cellulose on the Cellulolytic Bacterium, Ruminococcus Flavefaciens (Rumen, Anaerobe)
Cellulose degradation by Ruminococcus flavefaciens and other ruminal cellulolytic bacteria was strongly inhibited by highly substituted methyl celluloses (degree of substitution > 1.5 and mol wt > 12,000). The inhibitory response was concentration dependent with 0.1% (wt/vol) or methyl cellulose …
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Molecular analysis of oxygen toxicity in the obligate anaerobe Roseburia cecicola: Isolation of a compound that degrades DNA when exposed to oxygen
… Roseburia cecicola. This organism is a strict anaerobe whose growth is inhibited when exposed to oxygen.
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Molecular Analysis of Roseburia Cecicola, a Motile Anaerobe, as a Foundation for Study of Bacterial Motility and Chemotaxis in the Murine Gastrointestinal Ecosystem
The obligately anaerobic, gram-negative, motile bacterium Roseburia cecicola, is being used as a model organism in the study. Motility may be essential for this organism to colonize its specific habitat in the mouse cecum. I purified the main protein (flagellin) of the flagellar apparatus of the …
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The Biology of Eubacterium Limosum and Its Utilization of One-Carbon Compounds
… isolated as the most numerous methanol-utilizing anaerobe (6.3 x 10('8) cells per ml) in the rumen fluid of two sheep fed a diet in which liquid molasses was a major component.
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Effects of far ultra-violet radiation and oxygen on macromolecular synthesis and protein induction in Bacteroides fragilis Bf-2
… synthesis and viability in the obligate anaerobe, Bacteroides fragilis, as well as the specific proteins induced in this organism by these different DNA damaging agents.
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Struktur und Funktion von Fermentierern und Methanogenen in einem sauren Niedermoor
… (i) abundante fakultativ aerobe und/oder obligat anaerobe Fermentierer, (ii) Xylose- und Glucose-verwertende Fermentierer, (iii) Intermediate im Kohlenstofffluss zu Methan und (iv) aktive gemäßigt säuretolerante Archaea in einem nördlichen temperaten, sauren Niedermoor zu identifizieren. Die …
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The cloning and characterisation of an endoglucanase and an endoxylanase from Clostridium acetobutylicum in Escherichia coli
… is an endospore forming Gram-positive obligate anaerobe which has been used for the industrial production of acetone and butanol. Strains of C. acetobutylicum have been reported to exhibit some activity towards cellulosic and hemicellulosic substrates. The aim of this thesis was to establish a …
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Analysis of genes and enzymes involved in the degradation of hemicellulose and cellulose by Butyrivibrio fibrisolvens H17c
B. fibrisolvens H17c is a Gram-positive obligate anaerobe which has been found in the rumen of most ruminants. Strains of B. fibrisol vens have been reported to exhibit activity toward cellulosic and hemicellulosic substrates. The aim of this thesis was to screen a genebank of B. fibrisolvens H17c …
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Metabolismus und Biomineralisation in anaerob Methan-oxidierenden Lebensgemeinschaften
Die anaerobe Oxidation von Methan (AOM) ist als Schlüsselprozess des marinen Methankonsums bekannt. Nach phylogenetischen und metagenomischen Analysen wird der Prozess von Konsortien aus syntrophen Archaeen und Sulfat reduzierenden Bakterien katalysiert. In dieser Arbeit wird ein umfassenderer …
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Culture enumeration, lactose hydrolysis and sensory changes in stored frozen yogurt fermented with two culture systems
… Detection System on plates incubated in an anaerobe jar with a GasPak™, and Maltose/Galactose Reinforced Clostridial Agar incubated in an anaerobe jar with a GasPak™. Statistical analysis indicated that the Repair Detection System provided significantly (p<.05) enhanced recovery of …
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Bioreactor Janssand : fermentation processes in tidal-flat sediments of the German North Sea
Der anaerobe Abbau organischen Materials in Wattsedimenten umfasst mehrere Schritte. Der Fokus dieser Studie liegt auf den einleitenden Fermentationsprozessen. Im Rahmen dieser Arbeit wurde ein neuer experimenteller Ansatz entwickelt, bei dem Mikrokalorimetrie zur Ermittlung verschiedener …
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Mikrobielle Gemeinschaften an der Chemokline anoxischer Becken der zentralen Ostsee
… Unter stagnierenden Bedingungen kamen aerobe und anaerobe heterotrophe Mikroorganismen in vergleichbaren Zelldichten vor. Nach einer Durchmischung des anoxischen Tiefenwassers im Jahr 2003 standen dagegen erhöhten Zahlen aerober organotropher Mikroorganismen sowie aerober und anaerober …
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HcpR of Porphyromonas gingivalis utilizes heme to bind NO
The obligate anaerobe Porphyromonas gingivalis is the etiological agent responsible for periodontal disease. It must withstand high levels of reactive nitrogen species in the oral cavity generated by the host and other oral flora. The mechanisms allowing for protection against such stress remain …
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Glutamine synthetase in Bacteroides fragilis
… is a gram-negative, non spore-forming, obligate anaerobe of the human intestinal microbiota. It is, however, an opportunistic pathogen and has been ranked as the most prevalent isolate in cases of anaerobic septicaemia. Similar to most bacteria, ammonium is assimilated in B. fragilis through the …
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The physiological role and characterization of melanin produced by Shewanella algae BrY
… algae BrY is a Gram negative, facultative anaerobe isolated from the Great Bay Estuary of New Hampshire. This member of the gamma Proteobacteria demonstrates extensive versatility in the variety of terminal electron acceptors it uses for anaerobic respiration. Since the natural habitat of …
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Oxidative stress in anoxic habitats
… of oxidative stress endured by a facultative anaerobe (Escherichia coli) and an obligate anaerobe (Bacteroides thetaiotaomicron). E. coli lives adjacent to the epithelia in mammalian intestines. The encounter of oxygen penetrating from the epithelial layer and the reduced molecules like H2S …
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