Manipulation of photosynthesis and starch content of higher plants by a cyanobacterial glycogen synthase

摘要

The present invention is the amount of cyanobacteria in cine Cauchy seutiseu (Synechocystis sp.) PCC of 6803 of glycogen synthase (glycogen synthase or sll1393, below cglgA quot;) for expressing transgenic potato increase in potato leaf photosynthesis in that the tuber starch particles At the same time, the starch content can be increased while increasing the productivity of food.;The maximum photosynthetic rate is increased when the cyanobacterial glycogen synthesis gene (glycogen synthase, cglgA ) of the present invention is expressed, and the mitochondrial-related code rate of transgenic plants is increased by 2-3 times compared with the control, and the starch particle size of tubers Can provide a transgenic potato plant which reduces 25-35% compared to the control but has a constant particle size and increases starch content by about 23% compared to the control. In addition, overexpression of cyanobacterial glycogen synthesis gene ( cglgA ) may provide a transformed potato plant capable of increasing potato yield per area with increasing starch concentration of potato tubers.;Glycogen synthesis gene, cyanobacteria, cglgA, transgenic plant, potato, starch concentration