Abstract
The inhibition of the growth of Yersinia enterocolitica by other gram-negative bacteria in mixed cultures at 32 degrees C was not the consequence of a depletion in essential nutrients, an unfavorable change in pH or oxygen tension or the production of toxic metabolic products. The inability of Y. enterocolitica to attain its potential maximum population in mixed cultures appeared instead to result from "metabolic crowding," which occurred when the faster-growing antagonistic organism reached stationary-phase density. Lowering the incubation temperature, a technique commonly used in "cold" enrichment for isolation of Y. enterocolitica, tended to equalize growth rates and thereby allowed Y. enterocolitica to achieve a higher population.
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Selected References
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- Devenish J. A., Schiemann D. A. HeLa cell infection by Yersinia enterocolitica: evidence for lack of intracellular multiplication and development of a new procedure for quantitative expression of infectivity. Infect Immun. 1981 Apr;32(1):48–55. doi: 10.1128/iai.32.1.48-55.1981. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Laird W. J., Cavanaugh D. C. Correlation of autoagglutination and virulence of yersiniae. J Clin Microbiol. 1980 Apr;11(4):430–432. doi: 10.1128/jcm.11.4.430-432.1980. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Pai C. H., Sorger S., Lafleur L., Lackman L., Marks M. I. Efficacy of cold enrichment techniques for recovery of Yersinia enterocolitica from human stools. J Clin Microbiol. 1979 Jun;9(6):712–715. doi: 10.1128/jcm.9.6.712-715.1979. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Schiemann D. A. Development of a two-step enrichment procedure for recovery of Yersinia enterocolitica from food. Appl Environ Microbiol. 1982 Jan;43(1):14–27. doi: 10.1128/aem.43.1.14-27.1982. [DOI] [PMC free article] [PubMed] [Google Scholar]
- van Pee W., Stragier J. Evaluation of some cold enrichment and isolation media for the recovery of Yersinia enterocolitica. Antonie Van Leeuwenhoek. 1979;45(3):465–477. doi: 10.1007/BF00443284. [DOI] [PubMed] [Google Scholar]