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Patent Lens > Technology Landscapes > Agrobacterium-mediated transformation of plants

Rice - Specific Patent Information - part 1

Patent Number

Title, Independent Claims and Summary of Claims

Assignee

US 6329571

  • Earliest priority - 22 October 1996
  • Filed - 22 October 1997
  • Granted - 11 December 2001
  • Expected expiry - 21 October 2017

Title - Method for Transforming Indica Rice

Claim 1

A method for transforming rice comprising transforming immature embryo cells of Indica rice by Agrobacterium method and selecting transformed cells, characterized in that a medium containing

  • 2000 to 4000 mg/l of KNO3,
  • 60 to 200 mg/l of MgSO4,
  • 200 to 600 mg/l of KH2PO4,
  • 100 to 450 mg/l of CaCl2,
  • 200 to 600 mg/l of (NH4)2SO4,
  • 1 to 7 mg/l of H3BO3,
  • 2 to 20 mg/l of MnSO4,
  • 20 to 50 mg/l of EDTA or a salt thereof,
  • 3 to 8 mg/l of Fe,
  • 50 to 200 mg/l of myoinositol,
  • 0.5 to 10 mg/l of 2,4-dichlorophenoxyacetic acid,
  • 0.01 to 5 mg/l of a cytokinin,
  • 5000 to 80,000 mg/l of a sugar, and
  • a gelling agent,which medium has a pH of 4.5 to 6.5, 

is used as a medium for selecting said transformed cells.

A method for transformation of Indica rice using immature embryo cells as target tissue for Agrobacterium. Ranges for the media components are disclosed in the independent claim.

Japan Tobacco

AU 736027 B2

  • Earliest priority - 22 October 1996
  • Filed - 22 October 1997
  • Granted - 26 July 2001
  • Expected expiry - 21 October 2017

Title - Method for Transforming Indica Rice

Claim 1

A method for transforming rice comprising transforming immature embryo cells of Indica rice by Agrobacterium method and selecting transformed cells, characterized in that a medium containing:

  • 2000 to 4000 mg/l of KNO3,
  • 60 to 200 mg/l of MgSO4,
  • 200 to 600 mg/l of KH2PO4,
  • 100 to 450 mg/l of CaCl2,
  • 200 to 600 mg/l of (NH4)2SO4,
  • 1 to 7 mg/l of H3BO3,
  • 2 to 20 mg/l of MnSO4,
  • 20 to 50 mg/l of EDTA or a salt thereof,
  • 3 to 8 mg/l of Fe,
  • 50 to 200 mg/l of myoinositol,
  • 0.5 to 10 mg/l of 2,4-dichlorophenoxyacetic acid,
  • 0.01 to 5 mg/1 of a cytokinin,
  • 5000 to 80,000 mg/l of a sugar, and
  • a gelling agent, which medium has a pH of 4.5 to 6.5,

is used as a medium for selecting said transformed cells.

Transformation of immature embryo cells of Indica rice by Agrobacterium. The composition of the medium used to select the transformed cells is disclosed.

EP 897013 A1

  • Earliest priority - 22 October 1996
  • Filed - 27 October 1997
  • Application deemed withdrawn - 18 December 2003

Title - Method for Transforming Indica Rice

Claim 1

A method for transforming rice comprising transforming immature embryo cells of Indica rice by Agrobacterium method and selecting transformed cells, characterized in that a medium containing:

  • 2000 to 4000 mg/l of KNO3,
  • 60 to 200 mg/l of MgSO4,
  • 200 to 600 mg/l of KH2PO4,
  • 100 to 450 mg/l of CaCl2,
  • 200 to 600 mg/l of (NH4)2SO4,
  • 1 to 7 mg/l of H3BO3,
  • 2 to 20 mg/l of MnSO4,
  • 20 to 50 mg/l of EDTA or a salt thereof,
  • 3 to 8 mg/l of Fe,
  • 50 to 200 mg/l of myoinositol,
  • 0.5 to 10 mg/l of 2,4-dichlorophenoxyacetic acid,
  • 0.01 to 5 mg/1 of a cytokinin,
  • 5000 to 80,000 mg/l of a sugar, and
  • a gelling agent, which medium has a pH of 4.5 to 6.5,

is used as a medium for selecting said transformed cells.

Remarks

  1. National phase entry of WO 1998/17813 in Canada (CA 2240454) has lapsed according to CIPO.
  2. National phase entry of WO 1998/17813 in China (CN 1206435) is deemed withdrawn according to CNPO.
  3. National phase entry of WO 1998/17813 in Japan (JP H10-117776) has been rejected by the JPO.

Note: Patent information on this page was last updated on 8 February 2006.

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