[Transformation of Escherichia coli and different species of Pseudomonas by a plasmid DNA isolated from Pseudomonas testosteroni].

Pseudomonas testosteroni uses testosterone as sole source of carbon. We were able to isolate an extrachromosomal DNA from a strain of Pseudomonas testosteroni and to obtain Pseudomonas putida and aeruginosa and Escherichia coli transformants catabolizing testosterone.