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  • Pseudomonas marina  (1)
  • complex flagella  (1)
  • 1
    Electronic Resource
    Electronic Resource
    Novel function of eubacterial flagella: role in aggregation of a marine bacterium (1985)
    Springer
    Archives of microbiology 142 (1985), S. 101-102 
    Details
    ISSN: 1432-072X
    Keywords: Bacterial aggregation ; Flagella ; Bacterial motility ; Bacterial attachment ; Pseudomonas marina
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract Pseudomonas marina (ATCC 27 129) rapidly aggregates when suspended in buffered artificial seawater (ASW). Light microscopic observations of stained preparations, showed that flagella-flagella contact was responsible for this phenomenon. Aggregation did not occur if flagella were sheared off, or if motility was inhibited with NaN3. Aggregates were not observed when Mg2+ was omitted from ASW, even though the bacteria remained motile. Other divalent cations, including Ca2+, Mn2+, and Ba2+ could replace Mg2+. However, there is no absolute requirement for divalent cations, since aggregation occurred in ASW containing Cs+ or Li+ instead of Mg2+. P. marina aggregates developed from pH 5.8–8.4, but not below pH 5.8 even though motility continued unimpaired to pH 4.5.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00409246
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  • 2
    Electronic Resource
    Electronic Resource
    Invited review: Bacterial flagellar sheaths: Structures in search of a function (1983)
    New York, NY : Wiley-Blackwell
    Cell Motility and the Cytoskeleton 3 (1983), S. 93-103 
    Details
    ISSN: 0886-1544
    Keywords: bacterial motility ; flagella ; sheathed flagella ; complex flagella ; Life and Medical Sciences ; Cell & Developmental Biology
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Biology , Medicine
    Notes: Although bacterial flagellar sheaths were observed over 30 years ago, they may still be characterized as structures in search of a function. In addition to true sheaths, bacterial flagella may possess other adornments that cause an increase in the organelle's cross-sectional diameter. These “complex flagella” are sharply differentiated from sheathed flagella. Immunological and chemical distinctions have been found between flagellar sheaths, flagellar cores, and LPS layers inferred to be the sheath sensu stricto. Although complex flagella may serve as specific receptors for flagellotropic phages or in allowing for more efficient swimming in viscous environments, similar functions have not yet been attributed to true sheaths. It is postulated that flagellar sheaths may allow for specific interaction between a bacterium and a surface. In addition, there is a problem as to the relationship between a rapidly rotating flagellum and the sheath.
    Additional Material: 2 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/cm.970030108
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