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如果人们假设,放入植物和微生物中的基因永远保持不变并且只具有它们按设计所应有的作用,那么,是不是在生物工程中对生态学家和进化生物学家的需要就消失了呢?这里将用一个有关害虫防治的典型例子来说明在设计遗传工程生物时,遗传工程学家与进化生物学家之间的积极合作可产生的社会效益。杀虫作物合成农药的使用有时会造成严重的环境污染问题。遗传工程对消除这方面的问题有很大的潜力。通过向作物转移编码合成对环境安全的化合物的基因,可以防御害虫和病原体的侵害。在这方面,科学家已把取自苏云金杆菌的一种基因(编码苏云金杆菌的δ-内毒
If one assumes that genes placed in plants and microbes will remain the same forever and that they have only their intended role as design, does not the need for ecologists and evolutionary biologists in bioengineering disappear Here’s a typical example of pest control that illustrates the social benefits of active collaboration between geneticists and evolutionary biologists in the design of genetically engineered organisms. Insecticidal crops The use of synthetic pesticides can sometimes cause serious environmental problems. Genetic engineering has great potential to eliminate this problem. By preventing the pests and pathogens from being transferred to crops by transplanting genes that encode compounds that synthesize environmentally safe compounds. In this regard, scientists have taken a gene from Bacillus thuringiensis (delta-endotoxicity of Bacillus thuringiensis