Impatiens

Summary

Impatiens is the genus of popular ornamental bedding plants. Ball Horticultural Co. has a granted United States patent related to a method for the production of transgenic Impatiens plants by transforming an Impatiens tissue with Agrobacterium having either a vector with a selectable marker gene and a foreign gene or two expression vectors where one of them has a selectable marker gene and the other one a foreign gene.

Specific Patent Information

Patent Number Title, Independent Claims and Summary of Claims Assignee
US 6121511

  • Earliest priority – 12 September 1997
  • Filed – 11 September 1998
  • Granted – 19 September 2000
  • Expected expiry – 11 September 2018
Title – Production of transgenic Impatiens

Claim 1
A method for producing transgenic Impatiens plants, comprising the steps of:

(a) introducing an expression vector into a plant tissue explant via Agrobacterium to produce a transformed explant, wherein said expression vector comprises a selectable marker gene and a second foreign gene, or
(a’) introducing two expression vectors into said plant tissue explant via Agrobacterium to produce a transformed explant, wherein one of said expression vectors comprises a selectable marker gene, and wherein the second of said expression vectors comprises a second foreign gene;
(b) culturing said transformed explant on a selection medium;
(c) culturing said transformed explant on regeneration medium; and
(d) recovering fertile transgenic plants from said transgenic explants capable of transmitting said foreign gene to progeny.

Claim 36
A fertile transgenic Impatiens plant having stably integrated in the plant genome a foreign gene, wherein said transgenic Impatiens plant is capable of transmitting said foreign gene to progeny.

Granted US 6121511 recites a method to produce transgenic Impatiens plants by introducing into an Impatiens tissue either one expression vector having a selectable marker and a second foreign gene or two expression vectors where one of them contains a selectable marker and the other one contains a second foreign gene. The introduction of one or two vectors into the tissue is via Agrobacterium. The transformed tissue is regenerated into fertile transgenic plants with the foreign gene stably integrated in the genome. The progeny of these plants also contain the foreign gene.

Ball Horticultural Company

US 6528703

  • Earliest priority – 11 September 1998
  • Filed – 18 May 2000
  • Granted – 4 March 2003
  • Expected expiry – 11 September 2018
Title – Production of transgenic Impatiens

Claim 1
A method for producing transgenic Impatiens plants, comprising the steps of:

(a) introducing an expression vector into an Impatiens plant tissue explant to produce a transformed explant, wherein said expression vector comprises a selectable marker gene and a second foreign gene and said plant tissue explant is selected from the group consisting of Impatiens shoot tips, Impatiens hypocotyl tips, and Impatiens node regions, or
(a) introducing two expression vectors into said plant tissue explant to produce a transformed explant, wherein one expression vector comprises a selectable marker gene, and wherein the other expression vector comprises a second foreign gene;
(b) culturing said transformed explant on a selection medium;
(c) culturing said transformed explant on a regeneration medium; and
(d) recovering fertile transgenic plants from said transgenic explants capable of transmitting said second foreign gene to progeny.

This granted patent is a divisional of now granted US 6121511 (see above).

Granted US 6528703 recites a method for producing transgenic Impatiens plants that is not limited to Agrobacterium-mediated transformation, and the Impatiens plant tissue explant that can be used is limited to shoot tips, hypocotyl tips and node regions.

Note: Patent information on this page was last updated on 17 March 2006.