文献类型：期刊文献

英文题名：As natural phytocide: Biomarker assessment of Litsea cubeba (Lour.) Persoon essential oil against Drosophila suzukii Matsumura (Diptera: Drosophilidae.)

作者：Pan, Ziwei[1] Liu, Shengnan[1] Chen, Yi Cun[2,3] Wang, Yang Dong[2,3] Gu, Qing[1] Song, Dafeng[1]

第一作者：Pan, Ziwei

通信作者：Song, DF[1]

机构：[1]Zhejiang Gongshang Univ, Sch Food Sci & Biol Engn, Hangzhou 310018, Peoples R China;[2]Chinese Acad Forestry, State Key Lab Tree Genet & Breeding, Beijing 100091, Peoples R China;[3]Chinese Acad Forestry, Inst Subtrop Forestry, Hangzhou 311400, Peoples R China

年份：2022

卷号：187

外文期刊名：INDUSTRIAL CROPS AND PRODUCTS

收录：;EI(收录号：20223112468906);Scopus(收录号：2-s2.0-85135112345);WOS:【SCI-EXPANDED(收录号:WOS:000877791500102)】；

基金：This study was funded by the Science Technology Department of Zhejiang Province, Science and Technology Commissioner: Intensive processing of aquatic products (Dafeng Song) and Key Scientific and Technological Grant of Zhejiang for Breeding New Agricultural Varieties (2021C02070-3).

语种：英文

外文关键词：Essential oil; Drosophila; Insecticidal activity; Biopesticides; In vivo; In vitro

摘要：The essential oil of Litsea cubeba (Lour.) Pers. (LCEO) has applications as a health and food additive. The study objectives were to demonstrate the toxicity of LCEO against Drosophila and to investigate the essential oil's mechanism of action. The repellency percentage, fumigation effect and contact activity were all positively correlated with the LCEO concentration, and 1.0 mu L/cm(2) essential oil repelled Drosophila for 10 min and reached the highest repellant level. Damage to Drosophila organ tissues was assessed by light microscopy, using histological sections to further analyze the mechanism of lethality and treated larvae underwent ultrastructural evaluations. A 6.7-fold decrease in acetylcholinesterase and a 2.7-fold increase in superoxide dismutase indicated significant enzymatic changes, and the two main essential oil action mechanisms on Drosophila were identified, namely neurotoxicity in larvae owing to altered enzyme activities and death owing to homeostatic disruptions by aldehyde oxidation reactions. The phytochemistry of LCEO has broad applications in fruit pest control.