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 25 for “"Eubacterium"”.
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Metabolism of Gallic Acid by Eubacterium Oxidoreducens
Gallate was decarboxylated by cell extracts of Eubacterium oxidoreducens with pyrogallol as the only detectable product. A phloro-glucinol reductase catalyzed the conversion of phloroglucinol to dihydrophloroglucinol, using NADPH as the source of electrons. Extracts of cells grown on gallate and …
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Kristallstruktur der Selen-abhängigen Nicotinat-Dehydrogenase aus Eubacterium barkeri
Eubacterium barkeri ist ein gram-positives, anaerobes Bakterium, das zur Ordnung der Clostridien gehört. Es ist der einzige bekannte Organismus, der Nicotinat fermentativ zu Propionat, Acetat, CO2 und NH4+ abbauen kann. Initiert wird dieser Abbauweg durch eine Selen-abhängige …
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The Biology of Eubacterium Limosum and Its Utilization of One-Carbon Compounds
Eubacterium limosum was 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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The organization, expression, function and evolution of some essential genes from the hyperthermophilic eubacterium thermotoga maritima
The hyperthermophilic eubacterium Thermotoga maritima grows optimally at 80°C near marine geothermal locales. Phylogenetic analyses based on various molecular sequences indicate that T. maritima and other hyperthermophilic prokaryotes have very deep phylogenetic placements; i.e., that they have …
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Biochemistry and genetics of the pathway for the anaerobic degradation of aromatic compounds by Eubacterium oxidoreducens
… of gallate, pyrogallol and phloroglucinol by Eubacterium oxidoreducens was investigated. Phloroglucinol reductase was purified 90-fold, from the soluble fraction of cell extract, to electrophoretic homogeneity. The enzyme was an α₂ homodimer with a native M<sub>r</sub> of 78,000, did not …
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Study of the baiG Gene in Bile Acid 7α-Dehydroxylating Bacteria
… implicated in cholesterol gallstone disease. Eubacterium sp. strain V.P.I. 12708, a bile acid 7α-dehydroxylating bacteria, contains multiple bile acid inducible (bai) genes which are located on a large bai operon. Genes of this operon encode the enzymes responsible for bile acid …
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Study of the baiE Gene in Bile Acid 7α-Dehydroxylating Bacteria
… been implicated in cholesterol allstone disease. Eubacterium sp. V.P.I. 12708, a bile acid 7α-dehydroxylating bacterium, contains multiple bile acid inducible (bai) genes which encode the enzymes responsible for bile acid 7a-dehydroxylation. The baiE gene encodes a bile acid dehydratase activity …
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Functional genomics of motile commensal intestinal bacteria
… flagellum-biogenesis genotypes of motile enteric Eubacterium and Roseburia species were also investigated. Flagellin proteins were recovered from these commensal species, their amino-termini were sequenced and the proteins were found to be pro-inflammatory, as assessed by measurement of …
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Diversity of the butyrate-producing microflora of the human gut.
… similarities of the isolates with the genera Eubacterium. Roseburia and Butyrivibrio, but these genera are not readily distinguishable at phenotypic level and few culture collection isolates are available. Most of the isolates degraded starch and their growth was stimulated by maltose. …
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The 21-dehydroxylation of corticosteroids: evidence for an enol intermediate and the hydroxylation of steroids by fungal cyto-chrome P450: evidence for a stepwise mechanism
… of corticosteroids by the anaerobe Eubacterium l en tum, and the hydroxylation of steroids by fungal cytochrome P450. Deuterium labelling techniques were used to study the enzymic dehydroxylation. Corticosteroids doubly labelled (2H) at the C-21 position were incubated with a culture …
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DNA-DNA Checkerboard Hybridization to Identify Bacteria in Human Plaque Samples
… intermedia, P. nigrescens</em>, and <em>Eubacterium brachy</em>. Digoxygenin probes were prepared for 15 oral bacteria. These probes were used with a checkerboard DNA-DNA hybridization scheme to analyze whether human plaque samples contained any of the 15 bacterial species. Our results …
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The rumen microbial ecosystem during the transition period in dairy cows
… the relative abundance of bacterial species. Eubacterium ruminantium and Selenomonas ruminantium were not affected by time (P>0.05). Megasphaera elsdenii and Prevotella bryantii increased significantly postpartum (P<0.001). Conversely, Butyrivibrio proteoclasticus decreased gradually from -14 …
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Development of a Gene Transfer System in Clostridium Scindens VPI 12708
… scindens VPI 12708 (previously known as Eubacterium sp. VPI 12708) is a bile-acid dehydroxylating bacterium originally isolated from the feces of a colon cancer patient. Many genes required for bile acid 7-a dehydroxylation are found on a large bile acid inducible operon (bai) that has …
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Activation of proestrogens from hops by human intestinal bacteria: conversion of isoxanthohumol into the potent phytoestrogen 8-prenylnaringenin
… To do this, an efficiently 8-PN producing Eubacterium limosum strain was selected. Its application as probiotic to increase intestinal 8-PN production was shown in vitro and in the rat model. In conclusion, it was demonstrated for the first time that the exposure to the potent phytoestrogen …
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Evaluating substrate utilisation to target newly identified health-promoting gut bacteria
… target species, such as Akkermansia muciniphila, Eubacterium rectale, Faecalibacterium prausnitzii, Roseburia inulinivorans, and Ruminococcus bromii, many of which produce metabolites that can contribute to host health. These developments have been in part due to improvements in culture-based …
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Εξατομικευμένη Διατροφή: Ενισχύοντας την Πρόληψη του Καρκίνου Παχέος Εντέρου και το Αποτέλεσμα των Θεραπειών μέσω Εξατομικευμένων Διατροφικών Παρεμβάσεων
… όπως Bifidobacterium spp., Roseburia spp., και Eubacterium spp., στην πρόληψη του καρκίνου παχέος εντέρου, αλλά και στην ενίχυση των θεραπειών κατά του καρκίνου παχέος εντέρου. Τέλος, η συνδυαστική γνώση των γενετικών παραλλαγών που επηρεάζουν την αποτελεσματικότητα και τοξικότητα στις θεραπείες …
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Digesta Passage, Fermentation, and Microbes in the Hindgut and Its Relative Contribution to the Nutrition of Cattle
… population. Predominant cecal bacteria included Eubacterium cellulosolvens, E. ruminantcium, Fusobacterium species, and Bifidobacterium species. Ciliate protozoa were not detected in significant numbers, regardless of diet. Results show potential for manipulation of both the fermentation and …
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Functional Genomic Examinations Of Interactions Between Common Members Of The Human Gut Microbiota
… distasonis)</italic> and two Firmicutes <italic>(Eubacterium rectale</italic> and <italic>E. eligens).</italic> By comparing the genomes of all sequenced gut Bacteroidetes and Firmicutes, I found that gut Bacteroidetes' genomes contain large groups of genes responsible for: i) sensing, binding, …
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Optimization and Application of Metabolomic Assays for Analyzing Diet-induced and Gut Microbiota-derived Short-chain Fatty Acids in Mice and Humans
… Oscillospira, Blautia,</em> <em>Ruminococcus, Eubacterium,</em> and <em>Christensenella</em> species in the RS4 group. RS4-specific associations were found between gut microbial composition and SCFA concentrations. Cholesterols, fasting glucose, glycosylated haemoglobin, and proinflammatory …
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Microbial Diversity in the Human Mouth: Dominant Genera and their Interactions.
… included Streptococcus, Gemella, Veillonella, Eubacterium, Porphyromonas, Neisseria, Rothia and Prevotella. The three prevalent genera, as defined by the number of times observed from mouth rinse samples, were Streptococcus, Neisseria and Veillonella. Solid-phase co-culture experiments using …
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