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 88 for “"Bacteroidetes"”.
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RNA regulation of polysaccharide metabolism in human gut Bacteroidetes
Submission original under an indefinite embargo labeled 'Open Access'. The submission was exported from vireo on 2022-11-11 without embargo terms
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Struktur und Dynamik heterotropher Bakteriengemeinschaften im Wattenmeer und der Deutschen Bucht
… sind alpha- und gamma-Proteobakterien sowie Bacteroidetes abundant. Auf Partikeln finden sich zusätzlich beta-Proteobakterien und gram-positive Bakterien. Auf saisonaler Ebene wurden qualitative und quantitative Änderungen der Bakterienstruktur, insbesondere bei partikel-assoziierten …
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Functional Genomic Examinations Of Interactions Between Common Members Of The Human Gut Microbiota
… bacterial species, the majority belonging to the Bacteroidetes and the Firmicutes. Differences in the balance between these phyla has been linked to obesity in mice and humans. However, little is known about their interactions in vivo. I have used comparative and functional genomics, proteomics …
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Polysaccharide utilization by the human colonic bacterium, bacteroides intestinalis DSM 17393
… by the digestive enzymes of the host. The phylum Bacteroidetes, one of the main colonizers of the gastrointestinal tract (GIT), has evolved one of the largest arrays of carbohydrate-associated enzymes (CAZymes) responsible for degrading polysaccharides. Furthermore, these bacteria have highly …
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Evaluation of in vitro and in vivo equine microbial population shifts in response to colic conditions
… an uncultured Clostridiales bacterium, and Bacteroidetes as well as an uncultured bacteroidetes bacterium. These data suggest there is a need for broad bacterial diversity in the healthy equine gut.
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Effects of direct-fed Bacillus pumilus 8G-134 (NRRL B-50174) on ruminal and fecal microbial populations of pre- and postpartum Holstein cows
… finding in this work is a modulation of the Bacteroidetes in the fecal samples of the DFM fed cows. Previous reports have shown that an increased Firmicutes to Bacteroidetes ratio leads to increased energy harvest and an obese phenotype. In lactating dairy cows, the increased energy harvest …
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Identification and characterization of thiamine biosynthesis, transport, and regulation elements among bacteroides species
… little is known about how thiamine, the Bacteroidetes ability to biosynthesize and transport thiamine, or the regulation of biosynthesis and transport impacts the stability of microbial gut communities and human health as a whole. To investigate the role thiamine plays in the gut we …
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Determining fecal bacterial profiles of a human-habituated wild chimpanzee population in Mahale Mountains National Park, Tanzania
… to five bacterial phyla: Actinobacteria, Bacteroidetes, Firmicutes, Mollicutes, and Proteobacteria, as well as uncultured and unidentified bacterial species. The remaining T-RFs corresponded solely to uncultured or unidentified bacteria. Firmicutes was the most common phylum, observed in …
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Understanding the development of gut microbiota and effect of Salmonella Typhimurium infection on gut microbiota in layers
… at an early age which was replaced by phylum Bacteroidetes at the later stages. The gut microbiota richness reduced significantly at week 18, after shifting the flock from the rear to the production shed. Flock's production performance was optimal till the end of the production cycle. The …
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Comparison of Subterranean Termite (Rhinotermitidae: Reticulitermes) Gut Bacterial Diversity Within and Between Colonies and to Other Termite Species Using Molecular Techniques (ARDRA and 16S rRNA Gene Sequencing)
… bacterial phyla, Proteobacteria, Spirochaetes, Bacteroidetes, Firmicutes, Actinobacteria, and the newly proposed "Endomicrobia," were discovered. Further analysis indicated that the gut of R. flavipes may harbor as many as 1,318 ribotypes per termite. The second objective was to determine if the …
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METABOLICALLY HEALTHY AND UNHEALTHY OBESITY IN CHILDREN AND ADOLESCENTS: DIETARY IMPLICATIONS AND NEW OPPORTUNITIES FOR GUT MICROBIOTA MODULATION
… (500 mg/day) helped restore the Firmicutes/Bacteroidetes ratio, with sustained effects even after discontinuation. DHA supplementation drove a depletion in Ruminococcaceae and Dialisteraceae, and enrichment in Bacteroidaceae, Oscillospiraceae, and Akkermansiaceae. At genus level, Allisonella …
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Bacterioplankton in the Chesapeake Bay: Genetic diversity, population dynamics and community proteomics
… In the summer, Alpha- and Gammaproteobacteria, Bacteroidetes (Flavobacterium-Bacteroidetes-Cytophaga), Cyanobacteria and Actinobacteria were the dominant groups while in the winter, Alpha- and Betaproteobacteria, and Actinobacteria were commonly found. Clone library analysis also revealed …
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The Gut Microbiome: Is Fecal Matter Microbial Composition a Proxy for Intestinal Microbial Composition in Studies of the Microbiome
… between the two main phyla Firmicutes and Bacteroidetes, as well as main genera like <em>Odoribacter, Porphyromonas </em>and <em>Alistipes. </em>Relevant species <em>Desulfovibrio desulfuricans </em>and <em>Odoribacter splanchicus </em>were also found to be significantly different in …
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Sources of Variation in the Microbiome of Pre-Weaned Dairy Calves
… with calf feces at various time points: Bacteroidetes, Firmicutes, Proteobacteria, Actinobacteria, Cyanobacteria, Verrucomicrobia, Spirochaetes, Tenericutes, Fibrobacteres, and Lentisphaerae. Overall, the calf meconium and fecal microbiome is influenced by a combination of the maternal …
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Bridging the gap between microbial and metazoan evolutionary history
… to constrain the ages of the bacterial phylum Bacteroidetes and the archaeal family Methanosarcinaceae.
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Assessing the microbial community structure’s diversity associated with nutrients concentration in the natural wetland systems
… among others. While members of Actinobacteria, bacteroidetes and Acidobacteria were observed in Lake Icubhu, members of Firmicutes, Chloroflexi and Bacteroidetes were also dominant at Nhlabane Estuary. Finally, some representatives of Thermomicrobia, Fusobacteria, Verrucomicrobia and …
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Omics-based characterization of complex anaerobic metabolism in methanogenic wastewater treatment
… understood lineages prevalent across Earth: Bacteroidetes. This reveals novel relationships between phylogeny, metabolism, and habitats and unnoticed ecological roles that Bacteroidetes can take in methanogenic environments, marine ecosystems, and even the human gastrointestinal tract. In …
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Εντερικό μικροβίωμα: Ο ρόλος του στην καρκινογένεση και οι επιπτώσεις στη χειρουργική του παχέος εντέρου
… βακτήρια, με επικράτηση των φύλων Firmicutes και Bacteroidetes, και συμμετέχει ενεργά στην πέψη φυτικών ινών παράγοντας λιπαρά οξέα βραχείας αλύσου, ενισχύει την ακεραιότητα του εντερικού φραγμού και παίζει καθοριστικό ρόλο στη ρύθμιση της ανοσοαπόκρισης. Η σύνθεσή του επηρεάζεται από μια πλειάδα …
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Evolutionary dynamics of the human gut microbiome
… I discover signals of adaptive evolution for Bacteroidetes strains, potentially over decades of colonization in adult twins. In the final project, this strain-tracking method is applied to advance the analysis of microbial transmission within social networks of Fiji islanders. These projects …
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Investigating nitrate-dependent humic substance oxidation and in-service K-12 teachers' understanding of microbiology
… divisions, the Acidobacteria, the Bacteroidetes, the Firmicutes, and the Proteobacteria. Additional findings suggest that members related to Bacteroidetes are involved in some sort of HS cycling in the environment or may be excellent electron scavengers enabling them to outcompete …
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