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J Bacteriol. 1966 February; 91(2): 628-633
Copyright © 1966 American Society for Microbiology. All Rights Reserved.

Specificity and Mechanism of Tetracycline Resistance in a Multiple Drug Resistant Strain of Escherichia coli

Kazuo Izaki1, Kan Kiuchi and Kei Arima

a Department of Agricultural Chemistry, Faculty of Agriculture, University of Tokyo, Tokyo, Japan

ABSTRACT

IZAKI, KAZUO (University of Tokyo, Tokyo, Japan), KAN KIUCHI, AND KEI ARIMA. Specificity and mechanism of tetracycline resistance in a multiple drug resistant strain of Escherichia coli. J. Bacteriol. 91:628–633. 1966.—A decrease in the uptake of tetracycline occurred concurrently with a rise in the level of resistance of a multiple drug resistant strain of Escherichia coli grown in the presence of tetracycline. Although the strain was also resistant to streptomycin and chloramphenicol, growth in the presence of these two antibiotics did not influence the uptake of tetracycline. The induction of resistance, or decreased uptake of tetracycline, was dependent on growth of the organism in the presence of the drug. Decreased uptake of tetracycline could not be induced in a sensitive strain of the same organism under conditions suitable for induction of the resistant strain. The decrease in accumulating power of the resistant organism cultured in the presence of tetracycline does not appear to be due to selection of a resistant strain from cultures containing both resistant and sensitive strains.

FOOTNOTES

1 Present address: Department of Pharmacology, University of Wisconsin, Madison.

J Bacteriol. 1966 February; 91(2): 628-633
Copyright © 1966 American Society for Microbiology. All Rights Reserved.



This article has been cited by other articles:

  • Luo, Z.-Q., Farrand, S. K. (1999). Cloning and Characterization of a Tetracycline Resistance Determinant Present in Agrobacterium tumefaciens C58. J. Bacteriol. 181: 618-626 [Abstract] [Full Text]  
  • Davies, J. E., Rownd, R. (1972). Transmissible Multiple Drug Resistance in Enterobacteriaceae. Science 176: 758-768  


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