Fumigant and repellent properties of sesquiterpene-rich essential oil from Teucrium polium subsp,capitatum(L.)  

作　　者：Abbas Khani Monireh Heydarian 

机构地区：[1]Department of Plant Protection,Faculty of Agriculture,University of Zabol,Zabol,Iran

出　　处：《Asian Pacific Journal of Tropical Medicine》2014年第12期956-961,共6页亚太热带医药杂志（英文版）

基　　金：supported by the University of Zabol

摘　　要：Objective:To test fumigant and repellent properties of sesquiterpene—rich essential oil from Teucrium polium subsp.capitation(L.).Methods:The fumigant toxicity test was performed at(27±1)℃.(65± 5)%relative humidity,and under darkness condition and 24 h exposure time.The chemical composition of the isolated oils was examined by gas chromatography—mass spectrometry.Results:The major compounds were α-cadiuol(46.2%),earyophyllene oxide(25.9%),α muurolol epi(8.1%),cadalene(3.7%) and longiverbenone(2.9%).In all cases,considerable differences in mortality of insect to essential oil vapor were observed in different concentrations and exposure times.Callosobruchus maculatus(C.maculates)(LC_(50)=148.9μL/L air) was more susceptible to the tested plant product than Teucrium castaneum(T.castaneum)(LC_(50)=360.2μL/L ain based on LC_(50)values.In the present investigation,the concentration of 3μ L /mL acetone showed 60% and 52% repellency against T.casteneum and C.maculatus adults,respectively.Conclusions:The results suggests that sesquiterpene—rich essential oils from the tested plant could be used as a potential control agent for stored—product insects.Objective:To test fumigant and repellent properties of sesquiterpene—rich essential oil from Teucrium polium subsp.capitation（L.）.Methods:The fumigant toxicity test was performed at（27±1）℃.（65± 5）%relative humidity,and under darkness condition and 24 h exposure time.The chemical composition of the isolated oils was examined by gas chromatography—mass spectrometry.Results:The major compounds were α-cadiuol（46.2%）,earyophyllene oxide（25.9%）,α muurolol epi（8.1%）,cadalene（3.7%） and longiverbenone（2.9%）.In all cases,considerable differences in mortality of insect to essential oil vapor were observed in different concentrations and exposure times.Callosobruchus maculatus（C.maculates）(LC50=148.9μL/L air) was more susceptible to the tested plant product than Teucrium castaneum（T.castaneum）(LC50=360.2μL/L ain based on LC50values.In the present investigation,the concentration of 3μ L /mL acetone showed 60% and 52% repellency against T.casteneum and C.maculatus adults,respectively.Conclusions:The results suggests that sesquiterpene—rich essential oils from the tested plant could be used as a potential control agent for stored—product insects.

关 键 词：CALLOSOBRUCHUS maculatus FUMIGANT toxicit Gas chromatography-mass spectrometry REPELLENCY Terpenoids TRIBOLIUM castaneum 

分 类 号：Q946[生物学—植物学]