Process for the production of transgenic plants having high starch content and yield and a high amylose / amylopectin balance.

摘要

Process for the production of transgenic plants having high starch content and yield and a high amylose / amylopectin balance. The alpha-1,4 glucan phosphorylases · (GPs) catalyze the reversible cutting of alpha-1,4 linkages of non-reducing ends of homopolysaccharides with at least 5 glucose molecules such as starch, maltodextrin and glycogen, leading to the production of glucose 1-phosphate. The GPs in bacteria and animal cells are responsible for the breakdown of glycogen. Although the increase in GP activity leads to a reduction in intracellular levels of glycogen in bacteria and animal cells in this invention to obtain plants having high levels and starch yields described, and a high amylose / amylopectin balance as result of the expression of genes coding for GPs.