Cyclosporin A as a Source for a Novel Insecticidal Product for Controlling Spodoptera frugiperda
文献类型： 外文期刊
作者： Sun, Chengxian 1 ; Li, Shunjia 1 ; Wang, Kai 1 ; Feng, Hongqiang 2 ; Tian, Caihong 2 ; Liu, Xiaoguang 1 ; Li, Xiang 1 ; Yin, Xinming 1 ; Wang, Yanmei 3 ; Wei, Jizhen 1 ; An, Shiheng 1 ;
作者机构： 1.Henan Agr Univ, Coll Plant Protect, State Key Lab Wheat & Maize Crop Sci, Henan Int Lab Green Pest Control, Zhengzhou 450002, Peoples R China
2.Henan Acad Agr Sci, Zhengzhou 450002, Peoples R China
3.Henan Agr Univ, Coll Forestry, Zhengzhou 450002, Peoples R China
关键词： CsA; combined toxicity; insecticidal activity; Spodoptera frugiperda; sublethal effect
期刊名称：TOXINS （ 影响因子：5.075； 五年影响因子：5.305 ）
ISSN：
年卷期： 2022 年 14 卷 10 期
页码：
收录情况： SCI
摘要： The fall armyworm (FAW), Spodoptera frugiperda, causes substantial annual agricultural production losses worldwide due to its resistance to many insecticides. Therefore, new insecticides are urgently needed to more effectively control FAW. Cyclosporin A (CsA) is a secondary metabolite of fungi; little is known about its insecticidal activity, especially for the control of FAW. In this study, we demonstrate that CsA shows excellent insecticidal activity (LC50 = 9.69 mu g/g) against FAW through significant suppression of calcineurin (CaN) activity, which is a new target for pest control. Combinations of CsA and indoxacarb, emamectin benzoate, or Vip3Aa showed independent or synergistic toxicity against FAW; however, the combination of CsA and chlorantraniliprole showed no toxicity. Sublethal doses of CsA led to decreases in FAW larval and pupal weight, pupation, emergence, mating rates, adult longevity, extended development of FAW larvae and pupae and the pre-oviposition period of adults, and increases in the proportion of pupal malformation. Importantly, CsA treatment reduced FAW ovarian size and female fecundity, which suggests that it has great potential to suppress FAW colony formation. Taken together, these results indicate that CsA has high potential as an insecticide for controlling FAW.
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