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  • 1975-1979  (2)
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  • 1
    Electronic Resource
    Electronic Resource
    A counting method for determining the burst size of defective phages fromBacillus subtilis (1977)
    Springer
    Antonie van Leeuwenhoek 43 (1977), S. 305-316 
    Details
    ISSN: 1572-9699
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract The defective phages ofBacillus subtilis cannot be counted by plating as they do not form plaques. In addition, counting under the electron microscope with latex spheres as an internal standard is not possible. The reliability of a method usingEscherichia coli phage T4 as a substitute for the latex spheres has been tested and the results compared with those of other methods. Using this method, we determined the burst sizes of the defective phages PBS X, PBS Y and PBS Z under various conditions.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02313757
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    The occurrence and taxonomic value of PBS X-like defective phages in the genus Bacillus (1978)
    Springer
    Antonie van Leeuwenhoek 44 (1978), S. 353-366 
    Details
    ISSN: 1572-9699
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract 72 strains of 24 Bacillus species were induced with mitomycin C. The lysates were examined for the presence of defective phages resembling PBS X in morphology. All strains tested of B. amyloliquefaciens. B, licheniformis, B. pumilus and B. subtilis contained such phages. Five morphological types of defective, PBS X-like phage could be distinguished, differing in their tail lengths and in the number of cross-striations on the tail. The quaternary structure of the tail, the molecular weight of the main tail protein and the antigenic properties of the phages were identical. The killing ranges of the defective phages have been determined and their possible use in taxonomy discussed.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00394312
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    Paper (German National Licenses)
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