转双抗虫基因741杨对杨扇舟蛾幼虫生长发育的抑制规律

The Inhibiting Law of Transgenic Hybrid Poplar 741 with Two Insect-resistant Genes on the Development of Clostera Anachoreta (Fabricius) Larva

用转基因741杨叶片饲养杨扇舟蛾幼虫,观察记录幼虫的死亡、蜕皮情况以及各龄幼虫的体重,研究转基因741杨对靶标害虫生长发育的抑制规律。研究结果表明:取食转基因741杨后杨扇舟蛾幼虫的生长发育不良,表现为发育进度减慢、发育历期延长、体重增长速率降低。且对不同龄期开始饲养的幼虫和取食不同世代的幼虫抑制作用不同,从低龄开始饲养的幼虫生长发育受到的抑制作用强于从高龄开始饲养的幼虫。对取食2代的幼虫抑制作用强于取食1代的幼虫,转基因741杨对杨扇舟蛾幼虫生长发育的抑制作用具有持续性。

Abstract： The larva of Clostera anachoreta were fed on transgenic 741 poplars, and their death, ecdysis and weight of every instar were observed and recorded in order to research the inhibiting law of transgenic 741 poplars on the development of the target pest. The results indicated that the development of Clostera anachoreta larva was in badness after they fed on transgenie 741 poplar representing development rate lowered, development period prolonged, and the weight increasing rate reduced. The inhibiting effect was different on the larva fed on transgenic 741 poplars beginning from different instars and for different generations. The inhibiting effect on the larva fed on from the lower instars and for two generations was stronger than that from the higher instals and for one generation. The inhibiting effect of transgenic 741 poplars on the development of Clostera anachoreta larva takes on durative.