Patents Assigned to Director General of Fruit Tree Research Station Ministry of Agriculture, Forestry and Fisheries
  • Somatic hybrids of Rutaceae plants
    Patent number: 4940836
    Abstract: Somatic hybrids of Rutaceae plants were obtained by allowing the protoplasts from embryogenic cells of a Rutaceae plant, which are of the nucellar origin, resistant to fusion treatment, and have a high proliferation activity, to fuse with the protoplasts of another Rutaceae plant having no proliferation activity, and then cultivating the fused protoplasts in a medium not containing a phytohormone but containing a saccharide in a concentration suitable for the selective embryogenesis of the hybrid cells.
    Type: Grant
    Filed: October 1, 1985
    Date of Patent: July 10, 1990
    Assignees: Director General of Fruit Tree Research Station Ministry of Agriculture, Forestry and Fisheries, Kikkoman Corporation
    Inventors: Shigetaka Ishii, Toshifumi Ohgawara, Shozo Kobayashi, Iwao Oiyama, Katsuichi Yoshinaga