首页> 外文期刊>Journal of Agricultural and Food Chemistry >Assessment of Toxicity, Antifeedant Activity, and Biochemical Responses in Stored-Grain Insects Exposed to Lethal and Sublethal Doses of Gaultheria procumbens L. Essential Oil
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Assessment of Toxicity, Antifeedant Activity, and Biochemical Responses in Stored-Grain Insects Exposed to Lethal and Sublethal Doses of Gaultheria procumbens L. Essential Oil

机译:暴露于致死量和半致死量高地葛根精油的储粮昆虫的毒性,拒食活性和生化响应的评估

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摘要

The present study was undertaken to investigate the insecticidal activity of chemically characterized Gaultheria procumbens essential oil (EO) and its mode of action against the Coleopteran insects Sitophilus oryzae and Rhyzopertha dominica. Gas chromatography-mass spectrometry results depicted methyl salicylate (MS) as the major compound (96.61%) of EO. EO and its major compound methyl salicylate (MS) showed 100% mortality at 150 and 5.0 mu L/L air against S. oryzae and R dominica, respectively, on 24 h of exposure. The in vivo percent inhibition of AChE activity ranged between 6.12 and 27.50%. In addition, changes in the antioxidative defense system, superoxide dismutase (SOD), catalase (CAT), reduced glutathione (GSH), and oxidized glutathione (GSSG), in test insects were estimated. A significant dose-dependent response in all test parameters was observed. The results demonstrated that G. procumbens EO could play a significant role in the formulation of EO-based insecticides for the management of stored-grain insects.
机译:进行本研究以研究化学表征的前刺柏精油(EO)的杀虫活性及其对鞘翅目昆虫Sitophilus oryzae和Rhyzopertha dominica的作用方式。气相色谱-质谱分析结果表明水杨酸甲酯(MS)是EO的主要化合物(96.61%)。 EO和主要化合物水杨酸甲酯(MS)在暴露24小时后,分别在150和5.0μL / L的空气中对稻米链霉菌和多米尼加R菌显示100%的死亡率。体内对AChE活性的抑制百分比范围为6.12至27.50%。此外,评估了测试昆虫中抗氧化防御系统,超氧化物歧化酶(SOD),过氧化氢酶(CAT),还原型谷胱甘肽(GSH)和氧化型谷胱甘肽(GSSG)的变化。在所有测试参数中均观察到显着的剂量依赖性反应。结果表明,普氏弓形虫EO可以在基于EO的杀虫剂配方中用于储粮昆虫的管理中发挥重要作用。

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