What are genetically modified seeds and how to identify them?

Transgenic seeds are seeds that use genetic engineering technology to change genome composition and are used in agricultural production. So how much do you know about genetically modified seeds? Let me tell you what genetically modified seeds are.

Characteristics of transgenic seeds

Genetically modified crops have three main characteristics: they have extinction effect on the original wild crops, and once planted, the wild crops will be extinct; Genetically modified products are sterilized products. They can't use grain as seeds like wild crops, and they can only buy new seeds every year. There are special requirements for pesticides and fertilizers, and only pesticides and fertilizers designated by genetically modified seed companies can be used.

Identification method of transgenic seeds

Biological photon radiation comes from the transition of biomolecules from high energy state to low energy state, which is a kind of phenomenon that occurs in? Molecular level? Life phenomenon, so? Biophotonics? Also often called? Molecular Biophotonics? . This means that biophoton radiation carries information about the composition and structure of biomolecules. The change of biological system at molecular level can cause the change of biological photon radiation behavior of the system.

In fact, from the microscopic mechanism, the change of molecular composition or structure will inevitably lead to the change of its quantum state (that is, the change of the eigenstate and eigenvalue of the energy level), which will lead to the change of photon radiation in intensity, spectral distribution and photon statistical properties. In this sense, the changes of biological system at molecular level brought by transgenic technology can be reflected in the photon radiation of the system, such as transgenic (roundup? Ready) soybean seeds are obviously different from the control samples in the sense of photon statistical entropy of spontaneous photon radiation (see Figure 8.438+03). With the continuous development of transgenic technology, more and more kinds of plant seeds are involved. In addition to being used as food seeds, transgenic treatment of flower seeds has also appeared recently, and a typical example is the transgenic treatment of tulip seeds. In order to explore the possibility of identifying transgenic tulip seeds by biophoton technology, we first measured the delayed luminescence of common tulip seeds, and the original data are shown in figure 12. 19. It can be seen that the luminous intensity of tulip seeds is quite high, which is higher than that of barley sample Alex? Is (figure 12. 14) is also higher than 30%, especially the observed values are in good agreement with the theoretical expectations, and the values of parameters a, b and c contain the relevant physiological information of flower seeds.

Protective measures of transgene

Since genetically modified products are so harmful, what measures should we take to ensure the safety of ecological agriculture in our state? Committee member Zhang Xianhong suggested: To protect Enshi eco-agriculture, it is necessary for all government functional departments to strengthen coordination, strengthen management from the source of seeds, and prevent seeds harmful to people and livestock from entering Enshi. Genetic pollution? To maintain a good agricultural ecological environment, so as to safeguard the safety, quality and environmental protection of agricultural products. Many CPPCC members believe that in order to protect agricultural ecological security, seeds should be strictly marked. Unapproved seeds should be audited by verifying the manufacturer and variety name. Resolutely put an end to genetically modified seeds entering Enshi market, prevent pollution from genetically modified planting, ensure agricultural ecological security in Enshi, and do our best to maintain one side of pure land and plant genetic diversity. Investigate the sown crops in Quanzhou, find genetically modified seeds, immediately inform the harm and destroy them, and check the damage of neighboring crops. Genetic pollution? Situation, collect and destroy genetically modified seeds purchased through relevant policies. Increase the cultivation and promotion of local excellent seeds and increase non-GMO labels. Label local fine varieties? Non-GMO? Words. It is necessary to vigorously encourage professional scientific research institutions and farmers to cultivate excellent local varieties, implement incentive mechanisms, vigorously promote the formation of excellent varieties with green environmental protection advantages, and maintain the diversity and natural quality of ecological genes. It is necessary to clearly inform and identify genetically modified seeds, and not to conceal the harm and uncertainty of genetically modified foods. Strengthen coordination and communication among departments, strengthen publicity and training for farmers, heads of agricultural products bases and staff of agricultural technology stations, and prevent them from the source? Genetic pollution? Ensure the safety and environmental protection of agricultural products and minimize the damage to people's health.

Debate on the safety of transgenic plants.

In 2007, French scientists confirmed that a genetically modified corn produced by Monsanto, the world's largest seed company, was toxic to human liver and kidney. In 2008, American scientists also confirmed that the immune system of mice fed with genetically modified corn for a long time would be damaged, and the research results were published in the Journal of Agricultural and Food Chemistry in the same year. On February 22, 2009, 65438+, the French Biotechnology Committee finally announced that genetically modified corn? Do more harm than good? . According to the experimental results, Russian experts claim that genetically modified products will push human beings to despair and lead to infertility, allergies and chronic poisoning. The safety of 20 1 1 genetically modified food has caused great controversy around the world.

Transgenic management measures

Strictly prevent malicious spread of genetically modified materials.

On May 5, 20 14, the Ministry of Agriculture issued a red-headed document to all genetically modified research and development units across the country, demanding that the loss of genetically modified experimental materials be strictly prevented. This red-headed document is specifically aimed at an overseas environmental protection organization. Theft? Genetically modified rice is called genetically modified material? Scientific research core secret? Once the breeding materials are found stolen or lost, they should be reported immediately. Seriously deal with the parties according to law? .

Genetically modified grain and oil shall not enter the field of military food supply.

201May 15 People's Daily Online, Beijing Electric The website of Xiangyang Grain Bureau in Hubei Province released a message saying that from May 6, all military supply points in Xiangyang City will not be allowed to supply genetically modified finished grain and edible oil to the garrison in their jurisdiction. Xiangyang Grain Bureau said that with the continuous development of China's grain and oil market, a number of genetically modified grain and oil products have entered the market. In view of the fact that whether there are potential safety hazards in China's genetically modified grain and oil products has not yet been determined, in order to fully protect the health and food safety of officers and men stationed in our city, according to the requirements of the logistics department of Guangzhou Military Region and Hubei Military Grain Supply Center, all military supply points in Xiangyang City will purchase non-genetically modified grain and oil from military grain and oil processing enterprises as required from May 6. It is not allowed to supply genetically modified finished grain and edible oil to the garrison in the jurisdiction.

Catering enterprises may be included in the category of genetically modified labeling.

20 14 On May 6th, Beijing Municipal Science and Technology Commission, together with Municipal Development and Reform Commission, Economic and Information Commission and Environmental Protection Bureau, held a press conference on Beijing Technological Innovation Action Plan (20 14-20 17). The relevant person in charge of the US Food and Drug Administration in Beijing said that catering enterprises were not included in the category of genetically modified labeling before 20 14, and they will be considered when formulating standards in the future.

Ministry of Agriculture: Non-GMO advertisements belong to the commercial category and have nothing to do with food safety.

20 14 10 13 when the debate about genetic modification broke out on the internet in China, some businesses would? Non-GMO? As a selling point, Bi Meijia, chief economist and spokesman of China Ministry of Agriculture, said on June 5438+03? Transgenic? With what? Non-GMO? Behind the commercial war is the struggle for the interests of enterprises, which has no essential connection with the safety of genetically modified foods.