Plant transgenic technology is the transfer of exogenous genes derived from any organism or even artificially synthesized in vitro recombinant DNA into plant cells or tissues to obtain new genetic characteristics, so as to get rid of seasonal, climate and other environmental impacts on crops. This technology breaks the isolation of species between species and expands the scope of genetic exchange. The use of transgenic technology can be used to isolate genes of interest from bacteria or animal cells and transfer them to plant cells, construct related genes with important agronomic traits, obtain genetically stable transgenic plants, and transfer healthy genes to plants and crops to change them. Its quality makes the food produced by food crops become healthy foods, functional foods and nutritious foods.
Ye et al. used Agrobacterium-mediated method to successfully integrate the psy, cntl and lcy genes of other species into the rice genome, so that they expressed in the rice endosperm to produce enzymes necessary for vitamin A biosynthesis, and solved the problem that rice endosperm could not synthesize vitamins. A's problem is that people can also obtain vitamin A from rice consumption. Goto et al [8] used soybean ferritin gene and transgenic technology to obtain transgenic plants capable of expressing stored ferritin at high levels in rice endosperm. Japanese scientists successfully transferred the ferritin gene of soybeans into lettuce cells and cultivated a genetically engineered lettuce that can prevent anemia. The amount of iron is nearly double that of common lettuce. This kind of genetically modified lettuce enhances the ability of leaves to store iron molecules. , Lettuce high vitamin c content is conducive to the absorption of iron.
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