普通烟草的叶容易被虫吃掉�学家�现苏��杆菌能产生杀死该虫的毒素于是将苏��杆菌中产生杀虫毒素的基因转入到普通烟草细胞中得到了抗虫效果 Template




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tomski普通烟草的叶容易被虫吃掉�学家�现苏��杆菌能产生杀死该虫的毒素于是将苏��杆菌中产生杀虫毒素的基因转入到普通烟草细胞中得到了抗虫效果 coloring