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Insights into the toxicity, behavioral responses, biochemical activity, and molecular docking of three Cymbopogon essential oils and their major constituents on Reticulitermes flaviceps

文献类型： 外文期刊

作者： Jin, Chunzhe 1 ; Wu, Ziwei 1 ; Chen, Yiyang 1 ; Gong, Xue 2 ; Yang, Shimeng 1 ; Zhang, Zhilin 3 ; Zhang, Dayu 1 ; Xie, Yongjian 1 ;

作者机构： 1.Zhejiang A&F Univ, Coll Adv Agr Sci, Hangzhou 311300, Peoples R China

2.Zhejiang Acad Agr Sci, Inst Virol & Biotechnol, Hangzhou 310021, Peoples R China

3.Hubei Engn Univ, Hubei Key Lab Qual Control Characterist Fruits & V, Xiaogan 432000, Hubei, Peoples R China

关键词： Cymbopogon; Fumigation activity; Reticulitermes flaviceps; Intermediary metabolism; Detoxifying enzyme; Acetylcholinesterase

期刊名称：INDUSTRIAL CROPS AND PRODUCTS （ 影响因子：5.6； 五年影响因子：5.7 ）

ISSN： 0926-6690

年卷期： 2024 年 214 卷

页码：

收录情况： SCI

摘要： The global impact of termites that damage wood products causes quite significant losses. Synthetic insecticides have been extensively employed to combat termites. However, as the long-term application of insecticides developed adverse effects on humans and the environment, the use of essential oils (EOs) has emerged as an alternative approach for controlling termites. Hence, the present report assessed the fumigation activity of three Cymbopogon EOs toward Reticulitermes flaviceps workers. The results showed that C. citratus (with the major constituent citral (mixture of neral and geranial) at 78.58 %), C. khasans (geraniol, 38.54 %), and C. nardus (citronellal, 26.99 %) had respective LC50 50 values of 0.39, 0.45 and 0.48 mu L/L. These values for citral, geraniol, and citronellal were 0.35, 0.34, and 0.40 mu L/L. The duration of fumigation using Cymbopogon EOs and their primary compounds exhibited a positive correlation with the knockdown and mortality rates of R. flaviceps while displaying a negative correlation with grasping ability. In addition, each component caused a concentration- dependent reaction measured using electroantennography (EAG) and triggered a significant response at 100 mu g/mu L. The activities of detoxifying enzymes like beta- esterase and glutathione S-transferase were remarkably increased in treated R. flaviceps. . The findings also demonstrated that both Cymbopogon EOs and their primary components effectively suppressed acetylcholinesterase (AChE) in vitro and in vivo. . In silico structural analyses of citral, geraniol, and citronellal revealed that citronellal exhibited the highest potential for binding to the active site of AChE. Similarly, the activity of acid phosphatases, alkaline phosphatases, aspartate aminotransferase, and lactate dehydrogenase was elevated in treated R. flaviceps , , whereas that of alanine aminotransferase was diminished. This study may provide a robust foundation for developing and using Cymbopogon EOs to control R. flaviceps in an environmentally friendly manner.

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