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A Genetic Alternative to Fertilizer

机译:化肥的基因替代品

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A plant transporter gene triggered in nitrogen-starved environments could be engineered to reduce the need for nitrogen fertilizers. Several studies have shown that a lack of nitrogen in soils adversely affects crop yields. The modern use of nitrogenfertilizers has improved yields to meet expanding global food demand, but in some cases up to 50% of the nitrogen in fertilizers reaches surrounding water bodies in the form of nitrate, causing pollution. As the use of nitrogen fertilizers is rapidly increasing worldwide each year, there is a fundamental need to understand how plants absorb nitrate, and how this absorption can be improved in crops. In Arabidopsis plants, nitrogen starvation triggers expression of the nitrate transporter gene known as NRT2.4, which allows the plants to absorb trace amounts of nitrate for survival.
机译:可以设计一个在氮匮乏的环境中触发的植物转运蛋白基因,以减少对氮肥的需求。几项研究表明,土壤中氮的缺乏会对作物的产量产生不利影响。现代氮肥的使用提高了产量,以满足不断增长的全球粮食需求,但在某些情况下,化肥中高达50%的氮以硝酸盐的形式到达周围水体,从而造成污染。随着全球每年氮肥的使用量迅速增加,根本需要了解植物如何吸收硝酸盐,以及如何改善作物的吸收水平。在拟南芥植物中,氮饥饿会触发称为NRT2.4的硝酸盐转运蛋白基因的表达,这使植物能够吸收痕量的硝酸盐以维持生存。

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