Abstract
The ability of colicinogenic bacteria and colicin to inhibit Shigella sonnei during the course of infection was studied. Infection of the guinea pig conjunctivae was used as the experimental model. In S. sonnei-infected guinea pig conjunctivae which were treated with a colicinogenic strain of Escherichia coli or with colicin, the number of S. sonnei cells was lower than in animals infected with S. sonnei but not treated. The decrease in the number of pathogenic organisms was associated with absence of disease. A noncolicinogenic strain of E. coli had no effect on production of disease in infected animals. Treatment with a colicinogenic strain of E. coli or colicin did not affect the production of disease or the numbers of organisms in an animal infected with a colicin-resistant strain of S. sonnei.
Full text
PDF








Images in this article
Selected References
These references are in PubMed. This may not be the complete list of references from this article.
- AMANO T., GOEBEL W. F., SMIDTH E. M. Colicine K. III. The immunological properties of a substance having colicine K activity. J Exp Med. 1958 Nov 1;108(5):731–752. doi: 10.1084/jem.108.5.731. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Braude A. I., Siemienski J. S. The influence of bacteriocins on resistance to infection by gram-negative bacteria. II. Colicin action, transfer of colicinogeny, and transfer of antibiotic resistance in urinary infections. J Clin Invest. 1968 Aug;47(8):1763–1773. doi: 10.1172/JCI105866. [DOI] [PMC free article] [PubMed] [Google Scholar]
- FREDERICQ P. Colicins and colicinogenic factors. Symp Soc Exp Biol. 1958;12:104–122. [PubMed] [Google Scholar]
- FREDERICQ P. Colicins. Annu Rev Microbiol. 1957;11:7–22. doi: 10.1146/annurev.mi.11.100157.000255. [DOI] [PubMed] [Google Scholar]
- FREDERICQ P. Sur une souche d'Escherichia coli à la fois lysogène et antibiotique. Antonie Van Leeuwenhoek. 1950;16(1):41–44. doi: 10.1007/BF02274399. [DOI] [PubMed] [Google Scholar]
- GOEBEL W. F., BARRY G. T. Colicine K. II. The preparation and properties of a substance having colicine K activity. J Exp Med. 1958 Feb 1;107(2):185–209. doi: 10.1084/jem.107.2.185. [DOI] [PMC free article] [PubMed] [Google Scholar]
- HENTGES D. J., FRETER R. In vivo and in vitro antagonism of intestinal bacteria against Shigella flexneri. I. Correlation between various tests. J Infect Dis. 1962 Jan-Feb;110:30–37. doi: 10.1093/infdis/110.1.30. [DOI] [PubMed] [Google Scholar]
- Hentges D. J. Inhibition of Shigella flexneri by the normal intestinal flora. I. Mechanisms of inhibition by Klebsiella. J Bacteriol. 1967 Apr;93(4):1369–1373. doi: 10.1128/jb.93.4.1369-1373.1967. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Hentges D. J. Inhibition of Shigella flexneri by the normal intestinal flora. II. Mechanisms of inhibition by coliform organisms. J Bacteriol. 1969 Feb;97(2):513–517. doi: 10.1128/jb.97.2.513-517.1969. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Ikari N. S., Kenton D. M., Young V. M. Interaction in the germfree mouse intestine of colicinogenic and colicin-sensitive microorganisms. Proc Soc Exp Biol Med. 1969 Apr;130(4):1280–1284. doi: 10.3181/00379727-130-33773. [DOI] [PubMed] [Google Scholar]
- Kelstrup J., Gibbons R. J. Inactivation of bacteriocins in the intestinal canal and oral cavity. J Bacteriol. 1969 Sep;99(3):888–890. doi: 10.1128/jb.99.3.888-890.1969. [DOI] [PMC free article] [PubMed] [Google Scholar]
- MACKEL D. C., LANGLEY L. F., VENICE L. A. The use of the guinea-pig conjunctivae as an experimental model for the study of virulence of Shigella organisms. Am J Hyg. 1961 Mar;73:219–223. doi: 10.1093/oxfordjournals.aje.a120179. [DOI] [PubMed] [Google Scholar]