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R-plasmid effects on bacterial multiplication and survival

✍ Scribed by A. J. Alldrick; J. T. Smith

Publisher: Springer Netherlands
Year: 1983
Tongue: English
Weight: 523 KB
Volume: 49
Category: Article
ISSN: 0003-6072
DOI: 10.1007/bf00393671

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✦ Synopsis

The multiplication of Escherichia coli C containing either the plasmid R46 or its non-selftransmissible derivative was studied in the presence or absence of the isogenic R-parent strain. Neither plasmid conferred any detectable effect on the host's ability to multiply. Similarly under conditions of prolonged incubation neither plasmid conferred a disadvantage on its host when the bacteria were grown in pure culture. However, when the incubation of mixed R +/R cultures was prolonged, the possession of either R-plasmid resulted in small but reproducible differences which favoured the R-strain.

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