Variations in R-plasmid DNA concentrations of Escherichia coli during starvation in sewage and brackish waters.

Abstract excerpt

Cell culturability and plasmid stability in Escherichia coli containing plasmids RP1, R388 and pUB824 were studied in raw and treated wastewater, and in brackish water. The E. coli strain survived well in the three samples of water employed. Moreover, the three plasmids were maintained under all conditions studied. Interestingly, plasmid DNA concentration of individual plasmids followed the same evolution as the...

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