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 42 for “"Ruminococcus"”.
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Deoxyribonucleic acid restriction/modification systems and gene transfer strategies in Ruminococcus albus 8 and Ruminococcus flavefaciens FD-1
… transfer system. Research to date has shown that Ruminococcus can be classified as a genus resistant to transformation, and that electroporation may offer the only means to introduce foreign DNA. This thesis aims to elucidate and solve limitations to the utilization of electroporation with …
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Ammonia assimilation by Ruminococcus flavefaciens FD-1
… to better understand the mechanism by which Ruminococcus flavefaciens FD-1 utilizes ammonia (-um). $\sp{14}$C-methyl-ammonium was not taken up by R. flavefaciens FD-1, but cells prepared similarly depleted ammonia from media (initial rates of 11.2 and 0.8 …
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Investigation of Ruminococcus flavefaciens FD-1 cellulase
Restriction data tranferred 2014-07-01T11:23:52-05:00 Original Data Group with Access UIUC Users [automated] Release Date: none Reason: ETDs are only available to UIUC Users without author permission
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Molecular ecology of plant cell wall hydrolysis by mixed cultures of Ruminococcus albus 8, Ruminococcus flavefaciens FD-1 and Fibrobacter succinogenes S85
… Ruminococci, 3 targeted to sites on 16S rRNA of Ruminococcus albus and 3 targeted to sites on 16S rRNA of Ruminococcus flavefaciens. A subspecies probe for Fibrobacter succinogenes S85 (Stahl et al., 1988) and a eubacterial kingdom probe (Stahl and Amann, 1991) also were used. Bacteria were grown …
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Hydrogen and Formate Metabolism in Ruminococcus Albus, Strain Seven
Made available in DSpace on 2014-12-12T00:36:25Z (GMT). No. of bitstreams: 1 7412115.pdf: 3911208 bytes, checksum: 893bb87106ec19a7919cdb4c5d616ee0 (MD5) Previous issue date: 1973
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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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Exploiting Ruminococcus gnavus and Limosilactobacillus reuteri to strengthen host immunity and treat infections
… of these pathways. In recent work, we identified Ruminococcus gnavus and Limosilactobacillus reuteri as commensal bacteria able to induce Reg3g expression. As discussed in more detail in Chapter 2, we found that R. gnavus and L. reuteri require Myd88 and group 3 innate lymphoid cells (ILC3s) for …
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Metabolic and molecular responses to interspecies hydrogen transfer between Ruminococcus albus and Wolinella succinogenes
… a significant role in the global methane cycle. Ruminococcus albus 7 is a hydrogen-producing, fermentative bacterium with two known hydrogen-producing hydrogenase complexes, HydABC and HydA2, as well as a putative hydrogen-sensing protein, HydS. HydABC is the only chromosomal hydrogenase, while …
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Role of Ferredoxin in Hydrogen Metabolism of Ruminococcus Albus 7 and Selenomonas Ruminantium Hd4
Made available in DSpace on 2014-12-14T15:29:38Z (GMT). No. of bitstreams: 1 7606767.pdf: 5668685 bytes, checksum: 775da1b14f7c8f7bce76672ca4601b22 (MD5) Previous issue date: 1975
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Molecular analysis of two cellulase genes from Ruminococcus flavefaciens FD-1 and their transcriptional regulation
The mesophilic Ruminococcus flavefaciens FD-1 (NCDO 2215) is a Gram-positive obligate anaerobic bacterium. The aim of this thesis was to clone, sequence and analyze a cellodextrinase gene (celA) and a carboxymethylcellulase gene (celE), and study their regulation and induction at the …
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Molecular Analysis of a Cellulase/xylanase gene,celD, From the Ruminal Bacterium Ruminococcus Flavefaciens Fd-1
A genomic library of Ruminococcus flavefaciens FD-1 DNA was constructed using the Escherichia coli bacteriophage $\lambda$ vector $\lambda$DASH. A recombinant phage exhibiting activity against both Ostazin brilliant red-hydroxyethyl cellulose and carboxymethyl cellulose (CMC) was isolated. This …
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Biochemical and molecular analyses of plant cell wall degrading enzymes from the rumen bacterium Ruminococcus albus 8
… host with the majority of its energy demands. Ruminococcus albus 8 is a rumen bacterium that efficiently degrades and ferments plant cell wall polysaccharides, such as cellulose and hemicelluloses. Xylan, a hemicellulosic polymer of β-1,4 linked xylose monomers may be appended with arabinose, …
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Draft Genome Sequencing and Suppressive Subtractive Hybridization Analysis of the Fiber -Degrading Components of Ruminococcus Flavefaciens Fd-1
*This dissertation is a compound document (contains both a paper copy and a CD as part of the dissertation). The CD requires the following system requirements: Internet Browser; Microsoft Office.
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Comparative whole genome transcriptional responses of Ruminococcus albus strain 7 and 8: a case for specialization and niche differentiation
Ruminococcus albus strains are one of dominant fibrolytic bacteria in the rumen that contribute to plant biomass as well as vitamin utilization in host nutrition. To better understanding of host-microbe interactions, it is relevant to establish the model for fiber degradation and vitamin metabolism …
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Παραγωγή υδρογόνου από καθαρές καλλιέργειες του ινολυτικού βακτηρίου Ruminococcus albus σε συνθετικά υποστρώματα και ενεργειακή βιομάζα γλυκού σόργου (Sorghum bicolor)
… από καθαρές καλλιέργειες του μικροοργανισμού Ruminococcus albus εστιάζοντας κυρίως στο μηχανισμό της διεργασίας. Ο R. albus είναι ένα ετερότροφο, αυστηρά αναερόβιο βακτήριο που διαβιεί στο πρώτο διαμέρισμα του τετραμερούς στομάχου των μηρυκαστικών, τον κεκρύφαλο (rumen). Αναπτύσσεται …
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Genetic and biochemical analysis of nitrogen metabolism in ruminal anaerobic bacteria: a comparison between ruminococcus albus 8 and prevotella ruminicola 23
… pathways utilized by the rumen bacteria, Ruminococcus albus 8 and Prevotella ruminicola 23 during growth on, and metabolism of, different nitrogen sources. Both R. albus 8 and P. ruminicola 23 were grown using different nitrogen sources; ammonia, urea, or peptides for R. albus 8 and …
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Εργαστηριακή μελέτη της επίδρασης της ανοσοθεραπείας στο εντερικό μικροβίωμα πειραματικού μοντέλου mus musculus με μελάνωμα
… όπως το γένος Robinsoniella και το είδος Ruminococcus gnavus. Ο συνδυασμός μελανώματος και ανοσοθεραπείας προκάλεσε σημαντική μείωση του είδους Bifidobacterium animalis. Αξιοσημείωτα, η οικογένεια Ruminococcaceae και το γένος Ruminococcus αυξήθηκαν σε όλες τις ομάδες παρέμβασης σε σχέση με …
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Comparative genomic approaches for investigating evolution in the microbial and viral populations of the rumen
… strains of the cellulolytic rumen bacterium, Ruminococcus flavefaciens, and then by conducting a survey of rumen viral metagenome (virome) and subsequent comparison of the virome and microbiome sequences to ascertain if there was genetic information shared between these populations. We …
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Functional metagenomic analysis of carbohydrate degrading enzymes from the human gut microbiota
… the human colon (Bacteroides sp., Roseburia sp., Ruminococcus sp.). A group of clones encoding potentially novel GH enzymes was also identified, emphasising the importance of functional-based study. One highly active clone was detected during screening of the L. lactis metagenomic library and …
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Molecular characterisation of the fibre-digesting bacteria isolated from the ostrich (Struthio Camelus var. Domesticus) hindgut
… to three major bacterial genera, namely, Ruminococcus, Buryrivibrio and Bacteroides. Four highly cellulolytic strains were identified as ruminococci while two weakly cellulolytic strains, showed highest homology to members of the genus Butyrivibrio. Another weakly cellulolytic strain showed …
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