Sugar beet
Summary
The invention claimed by
Biosem in a granted European patent is directed to the
transformation of callus of sugar beet by contacting the calli
with Agrobacterium having a vector with a gene of interest. The
transformation process takes place in a liquid culture medium.
A transgenic sugar beet plant resistant to the sugar beet necrotic yellow vein virus is also part of the disclosed invention. A cDNA or genomic fragment conferring resistance to this virus is specifically limited to a certain nucleotide sequence that encodes at least part of the protein responsible for the resistance.
Monsanto has recently filed applications in Australia, United States and a PCT application related to a method for transforming a sugar beet leaf with Agrobacterium. The transformed leaf is initially derived from a selected region of a sugar beet seedling.
The following table presents basic bibliographic data and a summary of the inventions. Full text of the granted European patent and the PCT application can be accessed as PDF.
| Sugar beet | ||
| Assigned to Biosem | ||
| Issued patents | ||
| Patent No. | Issue date | Summary of the claims |
|
November 2, 1995 |
Method for transforming calli of sugar beet by contacting a suspension of them with Agrobacterium having a vector with a gene to be introduced into the plant cells. The gene of interest confers resistance to the infection caused by the sugar beet necrotic yellow vein virus. |
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Remarks: Granted French patent FR 2658987 B1 is not analyzed. |
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Assigned to Monsanto |
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| Applications | ||
| Application No. | Publication date | Summary of the claims |
|
Full patent application
text
|
June 14, 2001 |
A method for preparing transgenic sugar beet cells by selecting part of the cotyledon and hypocotyl region of a sugar beet seedling and micropropagating this part to form a shoot, from which a leaf is selected and put in contact with Agrobacterium cells. The Agrobacterium cells contain a vector with an exogenous gene. Transgenic sugar beet plants capable of expressing the exogenous gene are also recited in the claims. View Claims |
|
Full patent application
text
|
November 15, 2001 |
The filed claims are worded the same as the claims of the related PCT patent application. View Claims |
|
Remarks: A related application was also filed in Australia (AU 200125757 A5). |
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*It is important to remember that applications are not issued patents and the claims as filed have not been approved by any country. Thus, they are non-binding.
The information contained in this page was believed to be correct at the time it was collated. New patents and patent applications, altered status of patents, and case law may have resulted in changes in the landscape. CAMBIA makes no warranty that it is correct or up to date at this time and accepts no liability for any use that might be made of it. Corrections or updates to the information are welcome. Please send an email to info@bios.net.
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