O. Geisenberger et al., Monitoring the conjugal transfer of plasmid RP4 in activated sludge and insitu identification of the transconjugants, FEMS MICROB, 174(1), 1999, pp. 9-17
A GFPmut3b-tagged derivative of broad host-range plasmid RP4 was used to mo
nitor the conjugative transfer of the plasmid from a Pseudomonas putida don
or strain to indigenous bacteria in activated sludge. Transfer frequencies
were determined to be in the range of 4x10(-6) to 1x10(-5) transconjugants
per recipient. In situ hybridisation with fluorescently labeled, rRNA-targe
ted oligonucleotides was used to phylogenetically affiliate the bacteria th
at had received the plasmid. (C) 1999 Federation of European Microbiologica
l Societies. Published by Elsevier Science B.V. All rights reserved.