We often see stories of people in the novels and TV dramas. However, in the soil under our feet, there are many places that contain arsenic. The arsenic of arsenic is caused by the arsenic toxicity of arsenic. Arsenic in the natural world can be divided into trivalent arsenic and pentavalent arsenic. After ingested by the human body, it will be metabolized into toxic chemicals in the body. Large doses of arsenic can cause rapid death. Long-term intake of trace amounts of arsenic can cause cancer. In areas exposed to arsenic, arsenic remains in the soil even after hundreds of years. Recently, Professor Richard Miguel and his colleagues at the University of Georgia have successfully cultivated transgenic plants that can absorb arsenic from the soil. Using genetic engineering techniques, Professor Mige inserted two genes of arsenic-absorbing bacillus into a mustard gene sequence. In addition, transgenic amaranth that can absorb arsenic is cultivated. The traditional method of treating heavy metal pollution is to excavate a site and transport the contaminated soil to land. However, this method not only takes time and money, but also causes environmental pollution again. Professor MiG pointed out. Some transgenic plants have particularly long roots and use these long-rooted transgenic plants to absorb heavy metal arsenic in the environment. Particularly convenient and effective. Moreover, these heavy metal arsenics are slowly absorbed in the leaves of transgenic plants, and destruction and recycling are particularly convenient and safe. Prof. Mige also pointed out that for breeding regions that absorb heavy metal transgenic plants, grazing should be strictly prohibited, so as to avoid serious animal and livestock poisoning after those plants are eaten by animals.
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