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走近转基因|什么是生物防治
自1920年就开始应用Bt防治田间害虫,但直到1950年,科学家才终于确定Bt中的晶体蛋白决定了它的杀虫活性,这种蛋白质通常被称为δ-内毒素(δ-endotoxins),或杀虫晶体蛋白(insecticidal crystal protein,ICP),对包括鳞翅目(Lepidopera)、鞘翅目(Coleopter)在内的多种 ...
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