Itol A, extracted from Itoa orientalis Hemsl. (Flacourtiaceae), possesses bioactivity on Spodoptera litura (Lepidoptera: Noctuidae) and Nilaparvata lugens (Stål) (Hemiptera: Delphacidae). Our previous study showed that the effects on Spodoptera frugiperda, a destructive pest found worldwide, were similar to those of fenoxycarb (FC), a juvenile hormone analog. Thus, we speculate that itol A could have growth-regulating effects. The current work explored juvenile hormone (JH) levels and mRNA levels of crucial JH signaling pathway enzyme genes in S. frugiperda larvae treated with itol A and FC.

中文翻译：

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醇A对草地贪夜蛾（鳞翅目：夜蛾科）幼虫生长发育的影响

Itol A，从Itoa orientalis Hemsl 中提取。(Flacourtiaceae)，对斜纹夜蛾(Lepidoptera: Noctuidae) 和褐飞虱(Stål) (半翅目: Delphacidae) 具有生物活性。我们之前的研究表明，对草地贪夜蛾（一种在世界范围内发现的破坏性害虫）的影响类似于保幼激素类似物苯氧威 (FC)。因此，我们推测糖醇 A 可能具有生长调节作用。目前的工作探讨了用醇 A 和 FC 处理的S. frugiperda幼虫中关键 JH 信号通路酶基因的保幼激素 (JH) 水平和 mRNA 水平。