Patents Assigned to Institut fur Genbiologische
  • DNA sequences and plasmids for the preparation of plants with changed sucrose concentration
    Patent number: 5767365
    Abstract: DNA sequences are described, that by integration in a plant genome cause the activity of the sucrose-phosphate-synthase (SPS) of the plant to be changed, plasmids, containing these DNA sequences as well as transgenic plants that by introduction of the DNA sequences causes changes in the activity of sucrose-phosphate-synthase.
    Type: Grant
    Filed: December 20, 1994
    Date of Patent: June 16, 1998
    Assignee: Institut fur Genbiologische Forschung Berlin GmbH
    Inventor: Uwe Sonnewald
  • DNA sequences with oligosaccharide transporter, plasmids, bacteria and plants containing a transporter as well as a process for the preparation and transformation of yeast strains for identification of the transporter
    Patent number: 5608146
    Abstract: There are described DNA sequences, that contain the coding region of an oligosaccharide transporter, whose introduction in a plant genome modifies the formation and transfer of storage materials in transgenic plants, plasmids, bacteria and plants containing these DNA sequences, a process for the preparation and transformation of yeast strains, that makes possible the identification of the DNA sequences of the plant oligosaccharide transporter of the invention, as well as the use of DNA sequences of the invention.
    Type: Grant
    Filed: December 21, 1994
    Date of Patent: March 4, 1997
    Assignee: Institut Fur Genbiologische Forschung Berlin GmbH
    Inventors: Wolf-Bernd Frommer, Jorg Riesmeier
  • Expression cassette and plasmids for a guard cell specific expression and their use for the introduction of transgenic plant cells and plants
    Patent number: 5538879
    Abstract: A method of and plasmids for producing specific gene expression in the guard cells of plants. In particular, 5' transcriptional regulatory promoter regions are provided for guard cell specific expression. In addition, methods for preparing an expression cassette, plasmids, and the use of the cassettes and plasmids to produce transgenic plant cells and plants are described.
    Type: Grant
    Filed: January 24, 1994
    Date of Patent: July 23, 1996
    Assignee: Institut fur Genbiologische Forschung Berlin GmbH
    Inventors: Bernd Muller-Rober, Uwe Sonnewald, Lothar Willmitzer
  • Plasmids for the production of transgenic plants that are modified in habit and yield
    Patent number: 5492820
    Abstract: Plasmids that comprise a DNA sequence coding for a protein that modifies the metabolism of soluble sugars, for example, an inorganic pyrophosphatase agent and plant cells comprising those plasmids, for the production of transgenic plants that are modified in habit and yield arc described, the plants being modified in habit by the transfer and the expression of genes that intervene in sugar metabolism or sugar distribution inside a plant.
    Type: Grant
    Filed: November 2, 1993
    Date of Patent: February 20, 1996
    Assignee: Institut Fur Genbiologische Forschung Berlin GmbH
    Inventors: Uwe Sonnewald, Lothar Willmitzer
  • Potato tuber specific transcriptional regulation
    Patent number: 5436393
    Abstract: There is described a new DNA sequence of an expression cassette on which the potato tuber specific regulatory regions are localised as well as the transfer of this DNA sequence into the plant genome using agrobacteria as transfer micro-organisms. The DNA sequence contains a patatin gene with a patatin gene promoter. The transfer DNA sequence acts both for regulating endogenous as well as for preparation of heterologous products in crops.
    Type: Grant
    Filed: December 22, 1992
    Date of Patent: July 25, 1995
    Assignee: Institut fur Genbiologische
    Inventors: Mario Rocha-Sosa, Uwe Sonnewald, Wolf-Bernd Frommer, Lothar Willmitzer, Marina Stratmann