Later, northern Xinjiang fruit trees will not have to be buried in winter, greenhouse vegetables will grow normally at low temperatures ... as long as the transfer of these crops into a cold-resistant gene, and this cold-resistant gene has been successfully extracted from the mountain Saussurea. This is the information released by the Institute of Microbial Applications of the Academy of Agricultural Sciences on September 11. The National Natural Science Foundation project, which invested RMB 310,000 before and after this project, was studied by Ai Xiulian, a researcher of the Institute of Microbial Applications of the Academy of Agricultural Sciences, and two other researchers from 1999. After five years, the three researchers isolated the antifreeze protein gene from the snow lotus collected on the No. 1 glacier. If the extracted snow lotus antifreeze protein gene is linked with plant expression vector and then introduced into cotton, wheat, rice, corn and other crops, the cold resistance of the plant can be improved, resulting in huge economic benefits, especially for recovering April to May. The late autumn cold has caused economic losses to crops in Xinjiang. Even crops can be planted ahead of time or extended, the frost-sensitive crops can be transformed into frost-resistant crops, and the production period of crops can be extended. Ai Xiulian told reporters that the transformation of cold-resistance genes into crops to make winter crops safe for winter or normal growth in the winter has widespread promotion significance: greenhouse vegetables grow normally at low temperatures, it can save energy and reduce input; the cold-resistant genes When it is transferred to the lawn, it can maintain the green environment of the four seasons; in addition, this cold-resistant gene also has a great effect on medicine and food processing. Ai Xiulian said: “The crops in Xinjiang are often affected by meteorological disasters such as 'cold spring', early frost and hail, and they have reduced their yields and harvested them, but the Alpine snow lotus has strong vitality and strong cold resistance, and it is the highest on the Tianshan Mountains. The only large-scale higher plants, its physiological function of effective accumulated temperature has a high utilization." Xinjiang's current transgenic technology is relatively mature, Ai Xiulian said that it is expected that in Xinjiang, after two or three years, crop seeds carrying antifreeze genes can be cultivated. To realize the dream of "not afraid of cold" in crops. At present, Harbin Normal University has transferred cold-water fish cold-resistance genes into tomatoes to cultivate new cold-resistant tomatoes, and its seeds can be sold for 24,000 US dollars per kilogram.
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