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The Life-cycle of Bacteria. Alternate Asexual and Autogamic Phases

Published online by Cambridge University Press:  15 May 2009

F. H. Stewart
Affiliation:
From the laboratory of Cheddleton Mental Hospital, Staffordshire.
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Extract

I. Life-Cycle. Colony Formation, Sporing, Papilla Formation.

If any bacterium is sown in the usual way from a fluid suspension on to a plate of suitable culture medium, colonies arise from the multiplication of single bacteria. These colonies grow at their margins ar a rate roughly constant for the species. When the colony has reached a certain size, which is again roughly constant for the species, it ceases to grow or continues growing very slowly. Thus for example colonies of streptococci grow to 1 mm. in diameter, those of coliforms to 3 or 6 mm. The colonies do not continue to grow until they have covered the whole plate. This limitation of growth is not due to the using up of the food supply or to the drying of the medium, since, if a second sowing of the same bacterium is made between the arrested colonies, a new crop of colonies arises.

1 Twort (1907) obtained lactose fermenting variants of B. typhosus after prolonged growth in this sugar. These variations do not however occur frequently and regularly. They are probably examples of mutation from a homozygous strain (Mode A above).

2 The variations mentioned take place in culture where their origin from papillae can be seen. It is likely that exaltation of virulence is an adaptive variation of the same kind occurring in a host.

Type
Research Article
Copyright
Copyright © Cambridge University Press 1928

References

Almquist, (1923). Zeitschr.f. Hyg. 100, 15.CrossRefGoogle Scholar
Almquist, (1924). J. Infect. Dis. 35, 341.CrossRefGoogle Scholar
Arkwright, (1921). J. Path. and Bact. 24, 36.CrossRefGoogle Scholar
Arkwright, and Goyle, (1924). Brit. J. Exper. Path. 5, 104.Google Scholar
Atkin, E. (1926). Brit. J. Exper. Path. 1, 167.Google Scholar
Baerthlein, (1911). Centralbl. f. Bakt. I. Abt. Ref. Bhft. p. 128.Google Scholar
Baerthlein, (1912). Centralbl. f. Bakt. Orig. 66, 21.Google Scholar
Baerthlein, (1918). Centralbl. f. Bakt. 81, 369.Google Scholar
Bateson, (1926). J. Genetics, 16, 201.CrossRefGoogle Scholar
Bernhardt, G. (1915). Zeitschr.f. Hyg. 79, 179.CrossRefGoogle Scholar
Bernhardt, and Markoff, (1912). Gentralbl. f. Bakt. I. Abt. Orig. 65, 1.Google Scholar
Burck, A. (1908). Arch. f. Hyg. 60, 235 (Rev. in Bull. Inst. Pasteur, 1908, p. 639).Google Scholar
Burri, (1910). Centralbl. f. Bakt. 2. Abt. Orig. 28, 321.Google Scholar
Burri, and Duggeli, (1909). Centralbl. f. Bakt. I. Abt. Orig. 49, 143.Google Scholar
Dixon, Gurney (1919). Transmutation of Bacteria.Google Scholar
Dobell, C. (1908). Quart. J. Micr. Sci. 52, 121.Google Scholar
Dobell, C. (1909). Quart. J. Micr. Sci. 53, 519.Google Scholar
Dobell, C. (1912–13). J. Genetics, 2, 285, 325.Google Scholar
Goodman, (1908). J. Infect. Dis. 5, 421.CrossRefGoogle Scholar
György, (1920). Centralbl. f. Bakt. I. Abt. Orig. 84, 321.Google Scholar
Hartmann, (1909). Arch. f. Protist. 14, 264.Google Scholar
Hort, E. C. (1916). J. R. Micr. Soc.Google Scholar
Hort, E. C. (1917). Proc. Roy. Soc. B. 83, 468.CrossRefGoogle Scholar
Hort, E. C. (1917b). Brit. Med. J. i, 571.CrossRefGoogle Scholar
Hort, E. C. (1920). J. Hygiene, 18, 369.CrossRefGoogle Scholar
Ledingham, (1918). J. Hygiene, 17, 409.CrossRefGoogle Scholar
Massini, (1907). Arch. f. Hyg. 61, 250 (Rev. in Bull. Inst. Pasteur, 1907, p. 79).Google Scholar
Mellon, R. R. (1925), J. Bact. 10, 481.Google Scholar
Mellon, R. R. (1925b). J. Bact. 579.Google Scholar
Müller, Reiner (1909). Centralbl. f. Bakt. 1. Abt. Ref. 42, Bhft. 57.Google Scholar
Müller, Reiner. (1911). Centralbl. f. Bakt. Orig. 58, 97.Google Scholar
Neisser, J. M. (1906). Centralbl. f. Bakt. I. Abt. Ref. 38, Bhft. 98.Google Scholar
Penfold, (1911). J. Hygiene, 11, 30.CrossRefGoogle Scholar
Penfold, (1911). Proc. Roy. Soc. Med., Path. Sect. 4, 97.Google Scholar
Preisz, (1904). Centralbl. f. Bakt. I. Abt. Orig. 35, 280.Google Scholar
Pringsheim, (1910). Ueber Variabilitāt niederer Organismen.Google Scholar
Schaudinn, (1902). Arch. f. Protist. 1.Google Scholar
Schaudinn, (1903). Arch. f. Protist. 3.Google Scholar
Smith, Henderson (1913). Centralbl. f. Bakt. I. Abt. Orig. 68, 151.Google Scholar
Stewart, F. H. (1926). J. Hygiene, 25, 257.Google Scholar
Stewart, F. H. (1927). Segregation and Autogamy in Bacteria.Google Scholar
Toeniessen, E. (1920). Centralbl. f. Bakt. I. Abt. Orig. 85, 225.Google Scholar
Toeniessen, E. (1921). Centralbl. f. Bakt. 86, 353.Google Scholar
Twort, (1907). Proc. Roy. Soc. 79, 329.CrossRefGoogle Scholar
White, Bruce (1925). Med. Res. Council Report, 91.Google Scholar
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