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美科学家用基因转移技术从苏云金杆菌(Bacillus thuringiesis)的两个株系HD-1和 HD-73上截取基因转移到棉花“Coker 312”品种上,培育成抗虫的新品种称“Bt”棉。该基因能合成一种蛋白质使害虫消化系统功能丧失,最终饥饿而死。美科学家1991年在不同地点人为释放
United States scientists using gene transfer technology from Bacillus thuringiesis two strains HD-1 and HD-73 intercepted genes transferred to the cotton “Coker 312 ” breed, breed new insect resistance called Bt "cotton. The gene synthesizes a protein that loses its function as a pest digestive system and eventually dies of hunger. American scientists were artificially released in different locations in 1991