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Molecular Insights into the Insensitivity of Lepidopteran Pests to Cycloxaprid.
Journal of Agricultural and Food Chemistry ( IF 6.1 ) Pub Date : 2020-01-21 , DOI: 10.1021/acs.jafc.9b06959
Huitang Qi 1 , Tian Liu 1 , Qiong Lu 1 , Qing Yang 1, 2
Affiliation  

Cycloxaprid (CYC) is effective in the control of hemipteran pests, but its bioactivity against lepidopteran pests is still unclear. Here, the bioactivity of CYC against lepidopteran pests was found to be much worse than that against hemipteran insects. To reveal the mechanism, the transcriptomes of CYC-treated and untreated Ostrinia furnacalis larvae were compared. Among the top 20 differentially expressed genes, 11 encode proteins involved in cuticle formation, while only one encodes a detoxifying enzyme. Thus, the cuticle appears to be important for the insensitivity of O. furnacalis to CYC. A pretreatment of O. furnacalis larvae with methoprene enhanced the bioactivity of CYC by 1.12-fold. Moreover, mixtures of CYC with graphene oxide increased the bioactivity of CYC by 1.88-fold. Because lepidopteran and hemipteran insects often harm crops at the same time, the work can help make full use of CYC and reduce the environmental impacts of using multiple pesticides.

中文翻译:

鳞翅目害虫对环磷酰胺不敏感的分子研究。

Cycloxaprid(CYC)可有效控制半翅目害虫,但其对鳞翅目害虫的生物活性仍不清楚。在这里,发现CYC对鳞翅目害虫的生物活性比对半翅目昆虫的生物活性差得多。为了揭示其机理,比较了CYC处理和未处理的Ostrinia furnacalis幼虫的转录组。在排名前20位的差异表达基因中,有11种编码参与角质层形成的蛋白质,而只有一种编码解毒酶。因此,表皮对于弗纳卡利杯对CYC的不敏感性似乎是重要的。甲氧戊烯对糠fur幼虫的预处理使CYC的生物活性提高了1.12倍。此外,CYC与氧化石墨烯的混合物将CYC的生物活性提高了1.88倍。
更新日期:2020-01-22
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