1887

Abstract

Summary: When cultivated on membranes for electron microscopy, in the presence of 800 units penicillin/ml. and 10% (v/v) horse serum, a strain of developed L-colonies in two stages. In the first cultures, the colonies consisted of naked protoplasts with a wide periphery of relatively disorganized protoplasm, and when further subcultured upon penicillin the entire colonies consisted of disorganized protoplasm. The typical bacillary form could be recovered by subculture of this material upon penicillin-free medium. In the process of regeneration the cultures passed initially through a stage in which they again consisted of protoplasts.

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/content/journal/micro/10.1099/00221287-17-1-64
1957-08-01
2021-10-23
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References

  1. Dienes L., Weinberger H. J. 1950-51; The L-forms of bacteria. Bact. Rev 15:245
    [Google Scholar]
  2. Gale E. F. 1947; The assimilation of amino-acids by bacteria. 1. The passage of certain amino-acids across the cell wall and their concentration in the internal environment of Streptococcus faecalis. J. gen. Microbiol 1:53
    [Google Scholar]
  3. Gale E. F., Rodwell A. W. 1949; The assimilation of amino-acids by bacteria. 7. The nature of resistance to penicillin in Staphylococcus aureus. J. gen. Microbiol 3:127
    [Google Scholar]
  4. Hahn F. E., Ciak J. 1957; Penicillin-induced lysis of Escherichia coli. Science 125:119
    [Google Scholar]
  5. Hillier J., Knaysi G., Baker R. F. 1948; New preparation techniques for the electron microscopy of bacteria. J. Bact 56:569
    [Google Scholar]
  6. Klieneberger-Nobel E. 1949; Origin, development and significance of L-forms in bacterial cultures. J. gen. Microbiol 3:434
    [Google Scholar]
  7. Lederberg J. 1956; Bacterial protoplasts induced by penicillin. Proc. nat. Acad. Sci., Wash 42:574
    [Google Scholar]
  8. Medill M. A., Hutchinson W. G. 1954; The reversion of the L form of Proteus mirabilis into the rod form. J. Bact 68:89
    [Google Scholar]
  9. Nermut M. V. 1957; L forms of bacteria and their role in the origin of penicillin resistance. Nature; Lond.: 179379
    [Google Scholar]
  10. Park J. T., Strominger J. L. 1957; Mode of action of penicillin. Science 125:99
    [Google Scholar]
  11. Pease P. 1956a; The gonidial stages in Spirillum spp. and Vibrio spp. J. gen. Microbiol 14:672
    [Google Scholar]
  12. Pease P. 1956b; Electron microscopy of L-forms induced in Vibrio spp.by the action of penicillin. J. gen. Microbiol 15:xiv
    [Google Scholar]
  13. Stempen H., Hutchinson W. G. 1951; The formation and development of large bodies in Proteus vulgaris OX-19. 1. Bright phase contrast observations of living bacteria. J. Bact 61:321
    [Google Scholar]
  14. Tulasne R. 1953; Le cycle L et les formes naines des bacteries. Symposium: Citologia Batterica.. Vlth Congr. int. Microbiol Rome.:
    [Google Scholar]
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