Summary
The P type conjugative plasmid RP4 has been shown to be able to promote the transfer of the Agrobacterium Ti-plasmid. The results provide additional evidence that agrocin 84 sensitivity, exclusion of phage AP1, ability to catabolize the guanidine derivatives octopine and nopaline and tumor inducing ability, are Ti-plasmid determined properties. Furthermore, the results strongly support the notion that at least part of the Ti-plasmid is transferred from the bacterium to the target plant cells, since it was demonstrated that Ti-plasmid linked genes specify the synthesis of octopine or nopaline by crown-gall tumor cells.
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Communicated by W. Arber
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Van Larebeke, N., Genetello, C., Hernalsteens, J.P. et al. Transfer of Ti plasmids between Agrobacterium strains by mobilisation with the conjugative plasmid RP4. Molec. Gen. Genet. 152, 119–124 (1977). https://doi.org/10.1007/BF00268807
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DOI: https://doi.org/10.1007/BF00268807