Process for the incorporation of foreign dna into the genome of dicotyledonous plants
First Claim
1. A process for the incorporation of foreign DNA into chromosomes of dicotyledonous plants, comprising infecting the plants or incubating plant protoplasts with Agrobacterium bacteria, which contain plasmids, said Agrobacterium bacteria containing at least one plasmid having the vir-region of a Ti plasmid but no T-region, and at least one other plasmid having a T-region with incorporated therein foreign DNA but no vir-region.
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Abstract
The invention relates to a process for the incorporation of foreign DNA into chromosomes of dicotyledonous plants by infecting the plants or incubating plant protoplasts with Agrobacterium bacteria, which contain one or more plasmids, wherein bacteria are used which contain at least one plasmid having the vir-region of a Ti (tumour inducing) plasmid but no T-region, and at least one other plasmid having a T-region with incorporated therein foreign DNA but no vir-region, as well as to a Agrobacterium bacteria wherein at least one plasmid which has the vir-region of a Ti (tumour inducing) plasmid but no T-region and at least one other plasmid which has a wild type T-region with incorporated in it foreign DNA but no vir-region.
283 Citations
13 Claims
- 1. A process for the incorporation of foreign DNA into chromosomes of dicotyledonous plants, comprising infecting the plants or incubating plant protoplasts with Agrobacterium bacteria, which contain plasmids, said Agrobacterium bacteria containing at least one plasmid having the vir-region of a Ti plasmid but no T-region, and at least one other plasmid having a T-region with incorporated therein foreign DNA but no vir-region.
- 2. Agrobacterium bacteria, comprising at least one plasmid which has the vir-region of a Ti plasmid but no T-region and at least one other plasmid which has a T-region with foreign DNA incorporated in it but no vir-region.
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13. A process for the production of Agrobacterium bacteria which contains at least one plasmid which has the vir-region of a Ti-plasmid but no T-region and at least one other plasmid which has a T-region with foreign DNA incorporated in it but no vir-region, comprising:
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(a) using Escherichia coli as a host and incorporating foreign DNA into a plasmid therein which contains a T-region and a replicator having a broad bacterial host range (b) introducing the resulting plasmid into Agrobacterium bacteria which contain at least one plasmid which has the vir-region of a Ti-plasmid but no T-region.
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Specification