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Showing 1 to 20 of 32 for “"fimbriae"”.
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The glycosylation of Dichelobacter nodosus fimbriae
… negative and anaerobic bacterium that possesses fimbriae on its surface. This endemic and economically important disease is well recognized and investigated in New Zealand, Australia and throughout the sheep farming countries of the world. Genetic variation in the fimbriae of D. nodosus from New …
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Involvement of fimbriae in host-mycoparasite recognition
Extracellular, non-flagellar appendages, termed fimbriae are widespread among fungi. Fungal fimbriae range in diameter from 6-10 nm and exhibit lengths of up to 30 ~m. Fungal fimbriae have been implicated in several functions: adhesion, conjugation and flocculation. A possible role of fimbriae in …
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Expression of foreign epitopes in CS3 fimbriae / Bagher Yakhchali.
Aims to develop the CS3 pile of CFA/II+ of enterotoxigenic E. coli as a delivery system for the expression of foreign antigenic determinants to the bacterial cell surface, and to make an immunogenic ST toxoid as a step towards a vaccine against Enterotoxigenic E. coli.
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Engineering Alkane-Inducible Fimbriation in Escherichia Coli
Fimbriae are small, hair-like appendages arranged on many bacteria’s outer-membrane surfaces used for binding to biotic and abiotic surfaces to resist shear forces and attach to nutrient sources. Fimbriae are important in the initial attachment of cells to a substrate as well as the subsequent …
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Coordinated regulation of the flagellar, Salmonella pathogenicity island 1, and the type I fimbriae gene networks in Salmonella typhimurium
… it assembles finger-like projections, fimbriae, on its surface to adhere to and persist in the intestine. How Salmonella dynamically regulates gene expression and assembly of these organelles is the focus of this study. Our results demonstrate that the networks controlling genes …
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Production and characterisation of yeast cell wall preparations with binding activity against Salmonella and Escherichia coli.
… species, MOS have the capacity to inhibit type 1 fimbriae containing pathogenic bacteria from binding to host tissue and thus prevent infection. Alterations in the growing conditions of several yeast strains, including Saccharomyces, Kluyveromyces, Candida, Schizosaccharomyces, Pichia, and …
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Isolation and analysis of a corprinus cinereus DNA fragment showing homology to a fimbrial cDNA from ustilago violacea
Surface proteinaceous fibrils, termed fimbriae, were first identified on gram negative bacteria in the 1940s. Fungal fimbriae, discovered some 25 years later, are found on members of all fungal classes. In the present study, polyclonal antiserum raised against the fimbrial proteins of U. vio/acea …
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Characterization of a Strain of Salmonella Typhimurium Capable of Causing Persistent Infections in Swine
… pigs. One phenotype, 1519, expresses type 1 fimbriae and is adhesive to porcine enterocytes. The other phenotype, 1518, does not express type 1 fimbriae and is non-adhesive. 1519 is resistant to killing by serum complement whereas 1518 is sensitive due to differences in O-antigen repeat …
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N-acylhomoserine lactone regulation of adhesion and biofilm differentiation in Serratia marcescens MG1
… were found to effect the expression of type I fimbriae which is proposed to be the adhesin affecting C4-HSL regulated adhesion. While C4-HSL is not involved in adhesion to the HCE cell line, the genes bsmA and bsmB are important. It is proposed that bsmA and bsmB dependent HCE adhesion is due …
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An Evaluation of a Yeast-Derived Mannan Oligosaccharide and Its Mode of Action in Swine
… microbes expressing mannose-sensitive type-1 fimbriae. In theory, microbes that may bind to Bio-MosRTM are flushed from the gastrointestinal tract due to the inability of digestive enzymes to hydrolyze Bio-Mos RTM. In a meta-analysis of 54 comparisons of nursery pigs fed Bio-Mos RTM versus no …
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Novel techniques for the in situ detection of bacteria on salad leaf surfaces
… serovar Typhimurium mutants defective in curli fimbriae production were used to assess the role of curli in attachment to abiotic surfaces and leaves. Viability determination of potential viable but non-culturable (VNC), sub-lethally stressed cells was performed to assess the effect of chemical …
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Investigating the effect of prophylactic D-mannose treatment on adhesion of Uropathogenic Escherichia coli to the human bladder epithelium
… that may have expressed different types of fimbriae. These points could be further investigated by measuring concentrations of D-mannose in the urine samples, and isolating E. coli from samples before filtering and using western blotting to determine the types of fimbriae expressed. If there …
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Escherichia Coli ST131 Collected From Companion Animals Can Cause Cystitis and Pyelonephritis in a Murine Model of Urinary Tract Infection
… of a population of each isolate with type 1 fimbriae turned on was determined. Results: E. coli ST131 (102 – 1011 CFUs) were present in the urine ≥ 21 days in 24 of 36 mice. All 6 strains of E. coli were able to infect the kidney with strain AUS75 infecting 1/6 mice while strain AUS272 …
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Development of a Subunit Vaccine Against Bovine Diarrhea Caused by K99 Enterotoxigenic Escherichia coli and Bovine Viral Diarrhea Virus
… (ETEC), particularly strains expressing K99 (F5) fimbriae and heat-stable type I (STa) enterotoxin is the predominant bacterial cause of diarrhea in calves; whereas bovine viral diarrhea virus (BVDV) causes diarrhea and other illness to cattle at all ages. A vaccine that prevents against both K99 …
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A bacterial biofilm study: from molecular regulation mechanisms in Escherichia coli to the role of biofilms in mammalian colon cancer development
… FimE recombinase to control expression of type I fimbriae in E. coli. We propose that iron-dependent regulation of FimE via IscR leads to decreased surface attachment and biofilm dispersal under iron-limiting conditions.</p> <p> Bacterial biofilms also tightly interact with higher organisms. The …
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Characterising variation in the gene for the Dichelobacter nodosus Type IV fimbrial protein: Development of a molecular typing system
… of ovine footrot. The Type IV multi-subunit fimbriae of D.nodosus represents the key immunogenic component of footrot vaccines (Stewart 1989). Variation within the gene (jimA) for the fimbrial protein suQ.unit is currently the basis for the serotype classification of these bacteria. To date, …
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Microfluidic platforms to evaluate the effects of drugs on fertility and proteins on cancer progression – a focus on cisplatin, alpha-smooth muscle actin, and glial cell line-derived neurotrophic factor
… polarization for up to three months. An oviduct fimbriae-on-a-chip was also developed with the previously fabricated microfluidic device, to study some of the early events that occur in the development of ovarian cancer. A third microfluidic platform was fabricated to evaluate cell migration …
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Studies on the Role of Histone-like Proteins in Gene Regulation in Uropathogenic Escherichia coli Isolate 536
… in increased expression of alpha-hemolysin, fimbriae and iron-uptake systems, as well as genes involved in stress adaptation. Furthermore, several other putative virulence factors were found to be part of the H-NS regulon. On the other hand, no effect of StpA alone was observed. An hns stpA …
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Characterisation of novel and complex mechanisms of antobiotic resistance using a proteomics approach
… in <i>K. pneumoniae</i> involved the loss of fimbriae proteins, the increased expression of OmpK26 and the resistance proteins EmrA and APH(3"), in addition to OmpK35/36 porin loss. The upregulation of a multi drug efflux pump in <i>E. cloacae, A. baumannii</i> and <i>S. marcescens</i> …
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