Are the four major focuses of GM rice security an angel or a devil?

In January 2010, investors who purchased the "Fengle Seed Industry" stocks actually had a "bumper harvest." This was not only a result of people's appreciation of agricultural stocks has risen from 13.6 yuan to 17.68 yuan, and this increase is only in a few short Completed in a day.

At a time when some stockholders were wondering about the skyrocketing of this stock, the "CPC Central Committee and the State Council's Several Opinions on Strengthening the Balance of Urban and Rural Development to Further Consolidate the Foundations of Agricultural and Rural Development" (Central Document No. 1) uncovered the mystery.

The No. 1 Document of the Central Committee stated: "Based on scientific assessment and legal management, advance the industrialization of new transgenic varieties." The Fengle seed industry, which is the "first batch of genetically modified rice in China," is naturally rising sharply before the announcement.

The Central Document No. 1 not only made the stock market surging, but it also calmed the controversy about the GM rice for a while. Some people questioned the existence of hidden dangers in human health of GM rice. Some people expressed concern about national food security and even economic security. Some public opinion pointed directly to the lack of public information right.

In fact, in August last year, two transgenic rice varieties (“Bt transgenic rice” Huahui 1) and “Transgenic insect-resistant rice Shanyou 63” (hereinafter referred to as Bt genetically modified rice) obtained the production application safety certificate issued by the Ministry of Agriculture. A loss. The biggest focus of attention is: security.

Focus One: Does GM Rice Affect Human Health?

Huang Dazhao, a researcher and doctoral advisor of the Institute of Biotechnology of the Chinese Academy of Agricultural Sciences, told the reporter: “Bt protein, the protein produced by Bacillus thuringiensis. The earliest Bt protein research in China began in the 1960s and was the first group of scholars to stay in the Soviet Union. After returning home, Bt strains were brought back. Since then, Bt protein bio-pesticides have been produced in China, and there are still large quantities of production and use, and they are exported to other countries.” Huang Dazhao said. “The genetically modified rice that is currently being fired is the genetically engineered Bt protein gene that has been implanted into rice cells.”

“This process is similar to traditional rice breeding. Our rice varieties are thousands of years old. Through cross breeding, foreign genes are introduced into recipient varieties. However, non-transgenics are through sexual reproduction. Transgenics are in vitro transfer. I don't think there is a big difference." Deputy Director of the Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Expert in the National "863" Program Expert Group on Agricultural Biotechnology, and "National Major Specialized Transgenic New Variety Breeding and Compiling Group" of the Ministry of Agriculture Zhu Xi, the deputy head of the team, commented that “traditional breeding sometimes uses different kinds of plants for crossbreeding. Today's wheat varieties that are resistant to scab, that is, wheat and weeds, are hybrids of Leymus racemosus. Not only has it not brought new problems, it has overcome the reproductive isolation between species and improved the breeding efficiency."

Chen Junshi, an academician of the Chinese Academy of Engineering and a researcher at the Institute of Nutrition and Food Hygiene at the Chinese Academy of Preventive Medicine, told the Beijing Science and Technology News that hybrid rice also means genetic changes, but the way of change is different. In the natural history of thousands of years, the species will change along with the climate and the environment.

Huang Junlin, an associate researcher at the Beijing Academy of Agriculture and Forestry Sciences, told the Beijing Science and Technology News that genetic engineering is similar to conventional hybrid technology. Traditional hybridization technology is not a gene, but a lot of genes, and the transgene is very accurate transfer of a gene, like rice, hybridization is to put a bag of rice into another bag, and genetically modified is like Picking a grain of rice from the rice bag and packing it in another bag is a more accurate and delicate transfer.

However, some experts also asked questions in the media: “Since insects will die, what about people?” Some media reported that genetically modified crops caused health damage to experimental animals. However, many experts interviewed believe that none of the reported cases have been scientifically proven. Wide recognition of the community.

Huang Dazhao, a researcher and doctoral tutor of the Institute of Biotechnology of the Chinese Academy of Agricultural Sciences, introduced such a case of “transgene reversal”: In 2009, a Dutch scientist published an article in the “International Biosciences” magazine and reported on insect-resistant transgenic maize. Injury to the liver and kidneys of people has caused great concern from all walks of life. Scientists from the European Union's food safety agency made repeated experiments and found that after 90 days of animal feeding experiments, no health damage was found. This result basically denied the above doubt.