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 20 for “"Actinobacillus"”.
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Organic acids bioproduction from corn fiber using Actinobacillus succinogenes
… microorganisms for SA and LA production is Actinobacillus succinogenes due to its resistance to these acids and other inhibitors, and its ability to utilize a variety of sugars. The aims of this study included SA bioproduction, investigation of the effect of N₂ and CO₂ bubbling on LA …
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<em>Actinobacillus pleuropneumoniae</em> ApxI and ApxII Toxin Regulation
<p><em>Actinobacillus</em> <em>pleuropnenmoniae</em> is the causative agent of porcine pleuropneumonia, a highly contagious and often fatal respiratory tract disease of pigs. The Apx toxins are primary virulence factors of this pathogen, with Apxl and ApxII being produced by all highly virulent …
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Species-specific DNA probes for the identification of Actinobacillus actinomycetemcomitans
… the identification of the periodontal pathogen, Actinobacillus actinomycetemcomitans. Chromosomal DNA was extracted from A. actinomycetemcomitans, digested with a restriction enzyme, Sau3A, ligated to plasmid DNA (pUC18) and transformed into JM109 cells to give a partial A. actinomycetemcomitans …
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Genotipificação de amostras sorotipificáveis e não sorotipificáveis de Actinobacillus pleuropneumoniae através de RAPD
Actinobacillus pleuropneumoniae é o agente etiológico da pleuropneumonia suína, enfermidade amplamente distribuída no rebanho suíno mundial, responsável por prejuízos econômicos relevantes. Possui 12 sorotipos, determinados por técnicas de sorotipificação. Além disso é descrita a ocorrência de …
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Purification, serology and pathogenic role of the 110 kilodalton rtx hemolysins of Actinobacillus pleuropneumoniae
<i>Actinobacillus pleuropneumoniae</i> is the etiological agent of contagious swine pleuropneumonia, an economically important disease of the swine industry worldwide. Improved control of this disease requires enhanced understanding of the factors contributing to pathogenesis. The objectives of …
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Microbiology of periodontal disease in Singapore and the discovery of a bacterial intron in Actinobacillus actinomycetemcomitans
… the ethnic Chinese in Singapore were determined. Actinobacillus actinomycetemcomitans cdt; Porphyromonas gingivalis prtC and Tannerella forsythensis (Bacteroides forsythus) prtH genotypes correlated well with the periodontal status of the local population. A. actinomycetemcomitans possesses the …
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Detection of Actinobacillus Pleuropneumoniae and Identification of Serotypes 1, 2, and 8 by Multiplex Polymerase Chain Reaction
Traditional immunological assays used to serotype Actinobacillus pleuropneumoniae have been problematic due to cross- reactivity between serotypes, particularly serotypes 6 and 8. To avoid these serological cross-reactions, a multiplex PCR assay was developed to detect A. pleuropneumoniae and …
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The capsular polysaccharide of Actinobacillus pleuropneumoniae serotype 5A: role in serum resistance and characterization of the genetic basis for expression
Actinobacillus pleuropneumoniae synthesizes a serotype-specific capsular polysaccharide (CP) that protects this bacterium from host defenses. In the presence of anti-CP IgG, encapsulated A. pleuropneumoniae K17 was killed in precolostral calf serum (PCS) but not in normal serum used as a complement …
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Detection and Identification of Acinobacillus pleuropneumoniae serotype 5 by multiplex Polymerase Chain Reaction
Traditional serologic assays of Actinobacillus pleuropeumoniae often have problems with cross-reactivity. To avoid the complications of antibody-antigen reactions, a PCR assay was developed to detect Actinobacillus pleuropneumoniae and identify serotype 5 strains. Primers specific to the conserved …
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Antimicrobial constituents of Artemisia afra Jacq. ex Willd. against periodontal pathogens
… actinomycetemcomitans previously known as Actinobacillus actinomycetemcomitans) and Candida albicans. The crude extract of A. afra inhibited the growth of all tested microbial species at concentration range of 1.6 mg/ml to 25.0 mg/ml. The compounds 1-6 also showed activity range at 1.0 …
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Assays for lycosyltransferases
… TcdB from Clostridium difficile and NGT from Actinobacillus <br/>pleuropneumoniae. The validated LDA was used for screening two compound libraries (c. 400 compounds in total) against LgtC for the first time. Positive hits were identified from both screening campaigns and selected compounds …
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Qualitative und quantitative Analyse von parodontopathogenen Mikroorganismen bei Patienten mit koronaren Herzkrankheiten
… Ferner konnte auf einem Selektionsnährmedium Actinobacillus actinomycetemcomitans bei 21 % dieser Probanden nachgewiesen werden. Auch bei der Kontrollgruppe waren diese parodontopathogenen Bakterien weit verbreitet, was deutlich macht, dass zum Zeitpunkt der Probenahme die mikrobielle Flora …
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The Synthesis of Succinic Acid and its Extraction From Fermentation Broth Using a Two-Phase Partitioning Bioreactor
… coefficient for SA of 1.3. Cell cultures of Actinobacillus succinogenes was exposed to pH 4.2 for times from 5 minutes to 4 hours to determine whether cells could grow after low pH exposure. A. succinogenes resumed growth after up to 4 hours of low pH exposure, giving a sufficient time span …
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Nachweis von parodontopathogenen Bakterien mit Hilfe von Genchips
… can be detected by the ParoCheck® Kit 20: Actinobacillus actinomycetem comitans A.a., Actinomyces odontolyticus A.o., Bacteroides forsythus B.f. (synonym: Tannerella forsythensis, T.f.), Campylobacter concisus C.c, Campylobacter gracilis C.g., Campylobacter rectus C.r., Capnocytophaga …
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Antimicrobial Activity of Human Leukocyte Defensin HNP-4 Against Gram-negative Bacteria
… is of special interest because Aggregatibacter (Actinobacillus) actinomycetemcomitans (A.a.) and other periodontal pathogens are gram-negative. These bacteria are resistant to HNP 1-3. Defensin-resistance may contribute to the ability of these bacteria to cause disease. There have been no studies …
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Microbiota do solo de bananeira comercial e do composto orgânico, isolamento de actinobactérias e avaliação do potencial biotecnológico
… contra Staphylococcus aureus e sete contra Actinobacillus pleuropneumoniae. Em testes com mudas de bananeira da variedade Prata anã, capítulo três, os 12 isolados promissores para o controle de Foc foram testados in vivo em condições de casa de vegetação, para avaliação do potencial na …
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Mining the enolase superfamily for new functions: investigations of D-glucarate dehydratase related proteins (GlucDRP) and L-lyxonate dehydratase proteins (LyxD)
… in three organisms: Burkholderia cepacia, Actinobacillus succinogenes 130Z, and Ralstonia pickettii 12j and the formation of heterospecies in these proteins were confirmed. Additionally, I showed that GlucDRP promotes faster growth on glucarate media. D-glucarate is a component of urine, …
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Optimización de la producción aerobia de ácido succínico y ácido málico a partir de glicerol utilizando cepas de e. Coli modificadas genéticamente
… de fermentación microbiana por bacterias como Actinobacillus succinogenes, Mannheimia succiniciproducens y Anaerobiospirillum succiniciproducens para el caso del ácido succínico y por hongos como Aspergillus oryzae, Aspergillus niger, Penicillium oxalicum y la levadura Zygosaccharomyces rouxii …