目前,遗传工程植物获得批准进行田间试验的情形比遗传工程细菌稍好一些。Ro hm 与Haas 公司研究出的遗传工程烟草是第一个获得美国农业部批准的抗昆虫植物。它是继最近批准的 Ciba-Geigy 的抗除草剂烟草和 Agracetus 的带有编码酵母乙醇脱氢酶基因的烟草之后,又一项进展。这种抗昆虫烟草中带有一个取自苏云金杆菌(Bacillus thuringiensis 简写为 BT)的杀虫蛋白基因,是比利时的 Plant Genetic System 的研究人员根据与 Rohm 与 Haas 公司所签定的协议,负责研究开发的。BT 多年来一直被用于防治鳞翅目幼虫。一般常见的鳞翅目害虫有:舞毒蛾、棉夜蛾幼虫、棉铃虫、切根虫、粘虫、玉米穗蛾、甘蓝尺蛾、烟草天蛾、烟草夜蛾、 At present, genetically engineered plants are slightly better approved for conducting field trials than genetically engineered bacteria. Genetic Engineering Tobacco developed by Rohm and Haas is the first anti-insect plant approved by the U.S. Department of Agriculture. It is another step after the recently approved Ciba-Geigy herbicide-resistant tobacco and Agracetus tobacco with the gene encoding yeast alcohol dehydrogenase. The insecticidal tobacco contains an insecticidal protein gene from Bacillus thuringiensis (BT), a plant genetic system in Belgium based on an agreement with Rohm and Haas for research and development of. BT has been used for many years to control lepidopteran larvae. The most common lepidopteran pests are: Gypsy moth, cotton budworm larvae, cotton bollworm, cutworm, armyworm, corn ear moth, cabbage moth, tobacco moth, tobacco budworm,