Abstract: Disclosed is cultured plant cell derived from tissues or cells of a plant belonging to Hydrocotyle genus (water-pennyworts) and Centella genus, a culture method therefor, and a blood coagulation component and an therapeutic agent for mental disease obtained the cultured plant cells.
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
Abstract: Angiosperm nodes are cultured to develop plantlets. The plantlets are exposed to photoperiods of light and dark. Leaf tissue removed from the plantlets when cultured produces at least 20% embryos.
Type:
Grant
Filed:
October 31, 1988
Date of Patent:
June 5, 1990
Assignee:
The Board of Governors for Higher Education, State of Rhode Island and Providence Plantations
Abstract: Disclosed is a method of culturing protoplasts in a liquid medium. According to the method of the present invention, the pH of the liquid medium for culturing the protoplasts is adjusted to not more than 5.2.
Abstract: Production of macroalgae, e.g., Gracilaria, in a marine culture system is enhanced by improving the manner in which the aqueous culture medium is created, namely, first adjusting the alkalinity of a quantity of freshwater by the addition of an alkaline reagent thereto, diluting seawater with such alkalinity adjusted freshwater to create a saline solution having a salinity of between about 15 to 25 parts per thousand and an alkalinity of between about 3 to 10 meq/l., dissolving carbon dioxide in the resulting solution to bring its pH to between about 7.5 and 8.5, and using such carbon dioxide enriched solution as the culture medium.
Type:
Grant
Filed:
May 29, 1987
Date of Patent:
September 26, 1989
Assignee:
Harbor Branch Oceanographic Institution, Inc.
Abstract: A method is disclosed for forming haploid tomato plants. Plants so formed are normal, flowering plants but are sterile. Methods are taught of doubling the chromosome number of the haploid plants to form fetile, true breeding diploid tomato plants. Such methods are useful in plant breeding programs to produce new assortments of genes in true-breeding lines without the several backcrossing steps otherwise required.
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