Transformation of pseudomonas aeruginosa strain pao with bacteriophage and plasmid DNA

M. I. Sinclair, A. F. Morgan

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A procedure has been developed which allows transformation of P. aeruginosa strain PAD with plasmid and bacteriophage DNA at 'a frequency of 10-6 per recipient cell. The method is similar in outline to. that developed for Escherichia coli. It involves growing the recipient cells to 3-5 × 108 per ml in nutrient broth, washing the cells with 0·1 M MgCl2, resuspending in 0 ·175 M CaCl2 for 20 min, exposing to DNA for 1 h and then heat pulsing at 42°C for 1 min. Some plasmid markers are expressed immediately, whereas others require time for phenotypic expression.

Original languageEnglish
Pages (from-to)679-688
Number of pages10
JournalAustralian Journal of Biological Sciences
Issue number6
Publication statusPublished - 1 Jan 1978

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