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Russia has developed a new method for transgenic plants
The Russian Academy of Agricultural Sciences, the Russian Institute of Agricultural Biotechnology, uses plant proteins as a DNA vector to develop a new method for transgenic plants. This method does not use a special bacterial protein as a DNA grafting vector but uses the mosaic protein VLRecA as a vector. The new method has been successful in genetically modified tomato experiments. Experts pointed out that this research achievement is of great significance to the safety of transgenic plants. For humans, transgenic plants synthesize proteins that are safer than those obtained from animal products because human and animal pathogens or viruses are not produced in plant cells. In addition, proteins in seeds and plant fruits can be stored for a long period of time, and they can be directly consumed without being washed, and the cost of the cleaning occupies a large cost in genetic engineering proteins for medical use. However, with the rapid development of transgenic plant technology, there have been some concerns about the safety of transgenic plants: In order to make plants pest-resistant, transgenic plants transplanted normally unsafe protein components. At present, there are many ways to obtain transgenic plants, but the entire process requires complex equipment, processing of special bacteria, and artificial pollination. One of the simplest methods is to first transplant the DNA needed for transplantation into a special kind of bacteria, and then spray the suspension of these bacteria on the floured flower. The bacteria penetrate the plant through the stamen, and finally Enter the nucleus. Bacteria proteins act as carriers in this process. Russian experts have developed a DNA vector that can replace the aforementioned bacterial proteins. It is a combination of genes from a variety of different plant bacteria and is synthesized with a chimeric protein called VLRecA. The VLRecA chimeric protein is linked to DNA and carries the DNA to the nucleus, which also protects it throughout the process. In this way, during the cultivation of transgenic plants, it is not a suspension of bacteria but a mixture of DNA and protein that is sprayed on the stamen. This method does not require complicated equipment and does not require processing of special bacteria, and it is safe and reliable. The researchers applied the new method to the experiment of transgenic tomato and succeeded. The researchers pointed out that the VLRecA mosaic protein carrier can also act on different body tissues, including plant and animal cells.