These transgenic bacteria (Enc 181 and Enc2022cc) were ingestedby cornborer (Pyrausta nubialis) and bollworm (Heliothis armigera)larvae through feedingon detached young corn stems and cotton leaves, respectively.

• 181和1.；2022两个菌株中，并通过Tn5转座作用进一步将冰核基因iceA整合到宿主菌染色体DNA上，成功构建了冰核活性稳定的促冻杀虫基因工程菌Enc181~(ice)和Enc2022~(ice)。 0二