The cowpea trypsin inhibitor ( cptt ) gene is testified as a broad spectrum insect - resistant gene at present and its application in insect - resistant botanic transgenic engineering only after s / gene . the cpti transgenic plant developed rapidly for it ' s broad spectrum insect - resistant character and the target insects are uneasy tolerance to it 豇豆胰蛋白酶抑制剂( cpti )基因是目前在植物抗虫基因工程中应用仅次于bt基因的广谱性抗虫基因。鉴于它抗害虫的广谱性和靶标昆虫不易对其产生耐受性的优点，转cpti基因植物得到了迅速的发展。
