Callus Transformation
Callus Transformation – patents and application assigned to Japan Tobacco
Patents and application assigned to Japan Tobacco
In the disclosures, an explant of a monocot in the process of dedifferentiation or already dedifferentiated is used for transformation with Agrobacterium. A dedifferentiated tissue or a tissue in the process of dedifferentiation is described in the disclosures as an explant cultured on a dedifferentiation medium for not less than 7 days. Among the preferred tissues are a callus, an adventitious embryo-like tissue, and suspension cells.
Specific patent information
Patent Number | Title, Independent Claims and Summary of Claims | Assignee | ||
---|---|---|---|---|
US 5591616 A
|
Title – Method of transforming monocotyledons
US 5591616 claims:
|
Japan Tobacco |
||
EP 604662 A1
|
Title – Method of transforming monocotyledon
The claims submitted in the European application EP 604662 A1 are the same as the claims of the Australian patent, below. |
|||
AU 667939 B
|
Title – Method of transforming monocotyledon
The lead claim in the Australian patent AU 667 939 is broader than in the United States patent. In the Australian patent, a dedifferentiating or dedifferentiated tissue of a monocot is also used as the initial tissue for transformation, but there is no restriction on the number of days of culture in the medium to induce dedifferentiation. |
|||
US 2002/178463 A1
|
Title – Method for transforming monocotyledons
This application is a continuation of abandoned US 08/668464, which was a continuation of now granted US 5591616. Claims in this applicaiton recite Agrobacterium-mediated transformation of monocotyledon explants, where the explant is cultured on dedifferentiation medium for less than 7 days, then infected with Agrobacterium containing a vector that has the virulence region (in particular a vector that contains the virulence region of Ti plasmid pTiBo542 from A. tumefaciens A281 in the case of claim 1). |
|||
Remarks |
|
Note: Patent information on this page was last updated on 21 February 2006.