Conjugational transfer systems of Rhodopseudomonas capsulata mediated by R plasmids |
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| Authors: | Pak-Lam Yu John Cullum Gerhart Drews |
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| Affiliation: | (1) Institut für Biologie II, Mikrobiologie der Albert-Ludwigs-Universität, Schänzlestraße 1, D-7800 Freiburg, Federal Republic of Germany;(2) Institut für Biologie III der Albert-Ludwigs-Universität, Schänzlestraße 1, D-7800 Freiburg, Federal Republic of Germany |
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| Abstract: | Plasmids RP1, R68.45 and RP4::Mu cts 61 were transferred into Rhodopseudomonas capsulata from Escherichia coli. The frequency of intraspecies transfer of these plasmids in R. capsulata was 10-4–10-5 per donor. The plasmids also mobilized chromosomal genes at a low frequency. Phototrophic recombinants from matings between recipient strains defective in the photosynthetic-apparatus and wild type donors were obtained at a frequency of 10-7–10-8 per donor. |
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| Keywords: | Conjugational transfer R plasmids Rhodopseudomonas capsulata |
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