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水稻等粮食作物与许多其他生物一样需要氮素作为合成蛋白质、核酸等原料,但自然界中能直接利用空气中的氮气的生物种类比较少,大多数粮食作物都只能通过吸收土壤中的氨盐和硝酸根离子等含氮的无机物,而土壤中的含氮无机物比较少,因此人们就只能用施肥的方式给予补充。这样又会给环境带来严重的污染。如果能让水稻等粮食作物自身固氮,直接利用空气中的氮气,就会节约很多资源和能源,减少环境的压力,并且能提高农作物的产量。我试探从细胞杂交技术方面来探索提高水稻等粮食作物的固氮能力的方法。
Rice and other food crops, like many other organisms, need nitrogen as a raw material for the synthesis of proteins and nucleic acids. However, there are relatively few species in nature that can directly use the nitrogen in the air. Most food crops can only absorb ammonia from the soil And nitrate ions and other nitrogen-containing inorganic substances, while the soil contains less nitrogen-containing minerals, so people can only use fertilizers to give way to supplement. This will bring serious pollution to the environment. Nitrogen fixation of food crops such as rice and the direct use of nitrogen in the air can save a lot of resources and energy, reduce environmental stress and increase crop yields. I am exploring ways to improve the nitrogen-fixing ability of rice and other food crops from the aspects of cell hybridization.