Roses
Summary
Florigene’s inventions disclosed in two granted United States patents, a PCT application and their national phase entries are directed to:
- a method for producing a transformed somatic rose embryo, which expresses an exogenous gene,
- a method for transforming embryogenic, friable, granular rose callus cells with Agrobacterium,
- a method for transforming a rose plant and producing transformed rose plantlets, and
- culture media for callus cultivation and somatic embryo maintenance.
An additional protocol is disclosed to obtain somatic embryos out of a mature somatic tissue, a stamen filament and a leaf explant. These protocols are not limited to transformed tissues.
A new United States patent application has been filed by Florigene. Unlike the granted United States patents, the application describes Agrobacterium-mediated transformation of rose callus cells, without specifying the origin of the callus.
Florigene was founded as a joint venture between DNA Plant Technology Co. (now called S&G Seeds) and Rabobank Biotech Venture Fund, the former also listed as an assignee in the PCT application.
Roses – Patents granted to Florigene Europe B.V.
Specific Patent Information
Patent Number | Title, Independent Claims and Summary of Claims | Assignee | ||
---|---|---|---|---|
US 5480789
|
Title – Genetically transformed rose plants and methods for their production
Granted US 5480789 is a continuation of abandoned US 07/678846. Method for the production of a transformed somatic rose embryo expressing a gene of interest by transforming an embryogenic callus withAgrobacterium carrying the exogenous gene. |
Florigene Europe B.V. |
||
US 5792927
|
Title – Genetically transformed rose plants and methods for their production
Granted US 5792927 is a divisional of now granted US 5480789 (see above). Method for transforming rose callus cells with Agrobacterium carrying an exogenous gene and selecting callus cells containing that exogenous gene. Production of a transformed somatic rose embryo and a method for transforming a rose plant starting from a transformed granular callus are part of the claimed invention. |
Note: Patent information on this page was last updated on 22 March 2006.
Roses – Patent application filed by Florigene B.V.
Specific Patent Information
Patent Number | Title, Independent Claims and Summary of Claims | Assignee | ||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
WO 1992/00371 A1
|
Title – Rose plants and methods for their production and transformation
The PCT application has DNA Plant Technology Co. as a co-assignee listed with Florigene B.V.. The claims of the PCT application recite methods to regenerate a rose plantlet from a somatic embryo and to obtain a somatic embryo from somatic rose tissue, i.e. stamen filament, and leaf. Similar to its related United States patent, methods are also claimed to transform a rose callus with Agrobacterium having an exogenous gene, to produce a transformed somatic embryo and transformed rose plantlets. |
Florigene B.V. | ||||||||||
US 2001/007157 A1
|
Title – Genetically transformed rose plants and methods for their production
Abandoned application US 2001/007157 is a continuation of now granted US 5792927, which is a divisional of now granted US 5480789 (see above). Methods for transforming a rose callus with Agrobacterium cells carrying an exogenous DNA. Unlike the granted patent US 5792927, the type of callus to be transformed is not specified. |
|||||||||||
Remarks |
|
Note: Patent information on this page was last updated on 22 March 2006.