title: Non-oncogenic T-region mutants ofAgrobacterium tumefaciens do transfer, T-DNA into plant cells.
abstract: A new procedure for site-directed mutagenesis has been applied to the shooting and rooting loci of T-DNA of an octopine Ti-plasmid ofAgrobacterium tumefaciens. Mutants have been obtained which induced tumours that either developed shoots or produced more roots than normally observed. Double mutations, in which both types of T-DNA loci were affected, resulted in non-oncogenic strains. Indications have been obtained, showing that T-DNA coded oncogenic functions can be eliminated without affecting T-DNA transfer into plant cells.
authors: Department of Plant Molecular Biology, University of Leiden, Biochemistry Building, Wassenaarseweg 64, 2333 AL, Leiden, The Netherlands.
authors: J
authors: J
authors: Hille
authors: G
authors: G
authors: Wullems
authors: R
authors: R
authors: Schilperoort