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  • 1
    Electronic Resource
    Electronic Resource
    Microscopic examination and fatty acid characterization of filamentous bacteria colonizing substrata around subtidal hydrothermal vents (1989)
    Springer
    Archives of microbiology 152 (1989), S. 64-71 
    Details
    ISSN: 1432-072X
    Keywords: Thiothrix sp. ; Beggiatoa sp. ; Sulfideoxidizing ; Polyunsaturated ; Fatty acids ; Inclusions ; Sheath ; Southern California ; Ultrastructure ; Sulfur
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract Microscopic examination of the whitish mat that covered the substrata around subtidal hydrothermal vents at White Point in southern California revealed a “Thiothrix-like” bacterium containing sulfur inclusions as the dominant filamentous form in this microbial community. The matlike appearance developed as a result of the closely-packed manner inwhich the basal ends of the filaments were anchored to the substrate. The dominant phospholipid fatty acids of these filaments (16:0, 16:1w7c, 18:0, 18:1w7c) were similar to those recovered from a sample of Beggiatoa isolated from a spring in Florida. Filaments from both sources contained small quantities of C18 and C20 polyunsaturated fatty acids, as well. A larger but less abundant sheathless, filamentous form, which also contained sulfur inclusions and displayed a cell wall structure similar to a previously described Thioploca strain, also colonized the substrata around the subtidal mat. The preservation methods used in the preparation of thin-sections of the subtidal mat material were found to be inadequate for defining some key cellular structures of the large filaments. Nevertheless, the results demonstrate that the filamentous bacteria comprising the microbial mat in the vicinity of the subtidal vents exhibit some of the features of the free-living filamentous microorganisms found in deep-water hydrothermal areas.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00447013
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Bacterial Biofilms in Nature and Disease (1987)
    Palo Alto, Calif. : Annual Reviews
    Annual Review of Microbiology 41 (1987), S. 435-464 
    Details
    ISSN: 0066-4227
    Source: Annual Reviews Electronic Back Volume Collection 1932-2001ff
    Topics: Biology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1146/annurev.mi.41.100187.002251
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    Determination of Bacterial Growth and Activity at Solid-Liquid Interfaces (1990)
    Palo Alto, Calif. : Annual Reviews
    Annual Review of Microbiology 44 (1990), S. 579-602 
    Details
    ISSN: 0066-4227
    Source: Annual Reviews Electronic Back Volume Collection 1932-2001ff
    Topics: Biology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1146/annurev.mi.44.100190.003051
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    Paper (German National Licenses)
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  • 4
    Electronic Resource
    Electronic Resource
    Polysaccharide-specific probes inhibit adhesion of Hyphomonas rosenbergii strain VP-6 to hydrophilic surfaces (2000)
    Springer
    Journal of industrial microbiology and biotechnology 25 (2000), S. 81-85 
    Details
    ISSN: 1476-5535
    Keywords: Keywords: adhesion; biofilm; exopolysaccharide; Hyphomonas
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Process Engineering, Biotechnology, Nutrition Technology
    Notes: Biofilm formation commences with the adhesion of microorganisms to surfaces. Information regarding the initial bond between a bacterium and a solid surface is essential for devising methods to inhibit the onset of biofilm formation. Three different types of polysaccharide-specific probes, cationic metals, dyes, and lectins, were used to bind the exopolysaccharide of Hyphomonas rosenbergii, a budding, prosthecate marine bacterium. Probes, which specifically bind complex carbohydrates, inhibit the adhesion of H. rosenbergii to hydrophilic surfaces. These results suggest that the polysaccharide portion of H. rosenbergii capsular, extracellular polymeric-substance is involved in the primary adhesion process. Journal of Industrial Microbiology & Biotechnology (2000) 25, 81–85.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/sj.jim.7000033
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    Paper (German National Licenses)
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  • 5
    Electronic Resource
    Electronic Resource
    Surface attachment of a sediment isolate ofEnterobacter cloacae (1983)
    Springer
    Microbial ecology 9 (1983), S. 307-315 
    Details
    ISSN: 1432-184X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract Enterobacter cloacae was recovered from surface sediments of a flood control channel in an area where freshwater runoff mixed with coastal seawater. Cells of this bacterium elaborated an extensive capsule when cultured under laboratory conditions designed to promote extracellular polysaccharide production. Colonization of glass surfaces by cells was similar under aerobic and anaerobic conditions. Temperature exerted little effect on maximum adherent cell density in the range of 15–25°C. The availability of organic nutrients also had little influence on the tendency of cells to adhere to surfaces. Maximum adherent cell densities decreased (76%) as salinity increased from 0 to 12‰ The results suggest that cells ofE. cloacae are suitably adapted to maintain a sessile existence in brackish water sediments of temperate coastal areas.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02019020
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    Paper (German National Licenses)
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  • 6
    Electronic Resource
    Electronic Resource
    Extracellular polysaccharides from Desulfovibrio desulfuricans and Pseudomonas fluorescens in the presence of mild and stainless steel (1991)
    Springer
    Applied microbiology and biotechnology 35 (1991), S. 65-71 
    Details
    ISSN: 1432-0614
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Process Engineering, Biotechnology, Nutrition Technology
    Notes: Summary This communication reports the presence of polysaccharides in biofilms formed by pure and mixed cultures of Desulfovibrio desulfuricans and Pseudomonas fluorescens on mild and stainless steel surfaces. The results of colorimetric assays, indicating significant differences between the amounts of neutral sugars present in these biofilms, were supported by gas chromatographic (GC)-mass spectrophotometric and GC-flame ionisation detection analyses. Neutral sugars in biofilms grown on mild steel surfaces were identified and quantified, revealing glucose as a major carbohydrate followed by mannose and galactose in all types of biofilm. Extracellular polymeric substances (EPS) precipitated from bacterial cultures grown with and without steel surfaces were also analysed for their carbohydrate content. The influence of the surfaces present in the cultures on the amount and type of sugars released into the bulk phase was established. There was significantly more carbohydrate in EPS harvested from pure and mixed cultures of D. desulfuricans incubated mild and stainless steel coupons than in EPS obtained from coupon-free cultures. No significant difference in sugar quantities was observed in EPS precipitated from cultures of P. fluorescens grown under different conditions (absence or presence of steel surfaces). The main carbohydrates identified in all types of EPS samples were mannose, glucose and galactose in order of prevalence.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00180638
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    Paper (German National Licenses)
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