Influence of tetracycline exposure on tetracycline resistance and the carriage of tetracycline resistance genes within commensal Escherichia coli populations
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چکیده
منابع مشابه
Tetracycline Resistance in Escherichia coli Bearing
1. E8cherichia coli with an R-factor conferring resistance to tetracycline was induced to high-degree resistance by pre-exposure to the antibiotic. The degree of resistance was drastically lowered by subjecting the cells to osmotic shock. 2. Resistance to tetracycline was rapidly restored by incubating the shocked cells in a glucose-salts medium containing shock proteins prepared from tetracycl...
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Tetracycline resistance encoded by four genetically different determinants residing on plasmids in Escherichia coli was shown to be associated in each case with an energy-dependent decrease in accumulation of the antibiotic in whole cells in which resistance had been induced. The different class determinants examined were those on plasmids RP1 (class A), R222 (class B), R144 (class C), and RA1 ...
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The distribution of tetracycline resistance in commensal E. coli strains, isolated from pigs at different stages of production system was investigated in four Bulgarian swine farms. The prevalence of antibiotic resistance and particularly tetracycline resistance, as well as two tetracycline resistance genes were evaluated in Escherichia coli isolates from swine faeces and manure lagoons. A tota...
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Hospital isolates of Escherichia coli resistant to tetracycline (TC) were studied to identify mechanisms which regulate TC resistance levels and ability to transfer TC resistance. Antibiotic resistance patterns, resistance levels to TC, and ability to transfer TC resistance were determined for the isolates. Similar data were obtained for the transferable plasmids after transfer to several new h...
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ژورنال
عنوان ژورنال: Journal of Applied Microbiology
سال: 2003
ISSN: 1364-5072,1365-2672
DOI: 10.1046/j.1365-2672.2003.01937.x