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Wyszukujesz frazę "biofilm production" wg kryterium: Wszystkie pola


Wyświetlanie 1-4 z 4
Tytuł:
Inhibition of in vitro Histophilus somni biofilm production by recombinat Hsp60 antibodies
Autorzy:
Zarankiewicz, T.
Madej, J.
Galli, J.
Bajzert, J.
Stefaniak, T.
Powiązania:
https://bibliotekanauki.pl/articles/30200.pdf
Data publikacji:
2012
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Opis:
Histophilus somni is an opportunistic pathogen causing respiratory, genitourinary and generalized infections in cattle. An important virulence factor is its ability to produce a biofilm. The aim of this work was to confirm that H. somni Hsp60 (Gro-EL) is a constituent of the biofilm produced by this bacterium in vitro and to check whether or not the presence of a specific antibody within the culture medium can inhibit biofilm production. Biofilm production by H. somni cultured in vitro was confirmed by crystalline violet staining. The presence of Hsp60 in the biofilm was confirmed by using specific antibodies produced in a mouse and goat hyperimmunized with H. somni recombinant Hsp60 (rHsp60). Large complexes of biofilm stained with Hsp60 antibodies were microscopically detected. This indicates that the Hsp60 protein is a common constituent of the biofilm produced by H. somni in vitro. In a second experiment, mouse serum containing anti- H. somni rHsp60 antibodies was added to an H. somni culture. It was found that the presence of anti-rHsp60 antibodies in the culture medium inhibited biofilm production in vitro. Only small biofilm particles were seen in the presence of the specific antibody, whereas in control cultures (without specific antiserum) large biofilm complexes were produced. The results indicate that antibodies specific to Hsp60 may be useful for preventing H. somni biofilm formation in vitro. If this also occurs in vivo, it may be helpful for eradicating H. somni infection in cattle through the elimination of carriers. Further in vivo studies are needed to confirm this idea.
Źródło:
Polish Journal of Veterinary Sciences; 2012, 15, 2
1505-1773
Pojawia się w:
Polish Journal of Veterinary Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Comparison of biofilm formation by Staphylococcus aureus and Staphylococcus epidermidis strains isolated from sheep milkusing three diagnostic methods
Autorzy:
Vasil’, M.
Farkasóvá, Z.
Elečko, J.
Illek, J.
Zigo, F.
Powiązania:
https://bibliotekanauki.pl/articles/2087866.pdf
Data publikacji:
2017
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
biofilm production
Congo Red agar
Microtitre Plate
genes coding for biofilm
PCR
Źródło:
Polish Journal of Veterinary Sciences; 2017, 4; 795-801
1505-1773
Pojawia się w:
Polish Journal of Veterinary Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Ultrasound conditioning of Streptococcus thermophilus CNRZ 447: growth, biofilm formation, exopolysaccharide production, and cell membrane permeability
Autorzy:
Khadem, H.
Tirtouil, A.M.
Drabo, M.S.
Boubakeur, B.
Powiązania:
https://bibliotekanauki.pl/articles/2096999.pdf
Data publikacji:
2020
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
Streptococcus thermophilus
ultrasound conditioning
bacterial adhesion
biofilm
exopolysaccharides
Opis:
Sonication is one of the new and innovative approaches that is being increasingly used in food industry to control fermentation processes and to eradicate spoiling. Recently, this approach has seen new industrial applications such as enhancing microbial productivity. The present study aimed to assess the effects of ultrasound conditioning on the metabolism and extracellular matrix production of Streptococcus thermophilus. Bacterial suspensions were treated in ultrasonic bath (35 kHz, 240/60 W peak/nominal power, 1.8 l capacity) for different time periods (5, 10, 15, 20, 30, 45, and 65 min), and the growth improvement, adhesion ability, biofilm formation, and exopolysaccharide production of the bacterial strain were measured. The bacterial strain exhibited resistance to the treatment, and the conditioning improved the growth, adhesion, membrane permeability, biofilm formation, and exopolysaccharide production ability. An optimal treatment was obtained for 30 minutes of conditioning. An excellent yield of desirable exopolysaccharides (1788 mg glucose equivalent/l) was achieved. Ultrasound conditioning may be used as a potential approach to enhance certain biotechnological properties of industrial microorganisms.
Źródło:
BioTechnologia. Journal of Biotechnology Computational Biology and Bionanotechnology; 2020, 101, 2; 159-165
0860-7796
Pojawia się w:
BioTechnologia. Journal of Biotechnology Computational Biology and Bionanotechnology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Motility activity, slime production, biofilm formation and genetic typing by ERIC-PCR for Pseudomonas aeruginosa strains isolated from bovine and other sources (human and environment)
Autorzy:
Wolska, K.
Szweda, P.
Lada, K.
Rytel, E.
Gucwa, K.
Kot, B.
Piechota, M.
Powiązania:
https://bibliotekanauki.pl/articles/30220.pdf
Data publikacji:
2014
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Opis:
The molecular-typing strategy, ERIC-PCR was used in an attempt to determine the genomic relationship of 28 P. aeruginosa strains isolated from faeces of healthy bovine, bovine mastitis and from faeces of hospital patients as well as from environment. ERIC-PCR fingerprinting revealed large molecular differentiation within this group of isolates. Twenty two out of 28 strains tested generated unique patterns of DNA bands and only three genotypes consisted of two isolates each were identified. We also tested the P. aeruginosa isolates for their ability to form a biofilm on abiotic surfaces including polyvinylchloride and polystyrene. Different biofilm-forming abilities were demonstrated among strains; however, most of them (64.3%) showed moderate-biofilm forming ability. The strains with increased swimming and twitching motility displayed elevated biofilm formation. However, a negative correlation was found between slime and initial biofilm production. On the basis of the results obtained, we suggest that there are no major differences in phenotypic properties between P. aeruginosa strains isolated from different sources.
Źródło:
Polish Journal of Veterinary Sciences; 2014, 17, 2; 321-329
1505-1773
Pojawia się w:
Polish Journal of Veterinary Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-4 z 4

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