Cross-resistance and biochemical mechanisms of abamectin resistance in the western flower thrips, Frankliniella occidentalis

doi:10.1016/j.pestbp.2011.07.001

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	Cross-resistance and biochemical mechanisms of abamectin resistance in the western flower thrips, Frankliniella occidentalis
	Chen, Xuelin 1; Yuan, Linze 1; Du, Yuzhou 1; Zhang, Youjun 2; Wang, Jianjun 1
刊名	PESTICIDE BIOCHEMISTRY AND PHYSIOLOGY
	2011
卷号	101 期号:1 页码:34-38
关键词	Frankliniella occidentalis Abamectin Cross-resistance Resistance mechanism Cytochrome P450 monooxygenase
ISSN号	0048-3575
DOI	10.1016/j.pestbp.2011.07.001
通讯作者	Chen, Xuelin
英文摘要	Abamectin resistance was selected in the western flower thrips [Frankliniella occidentalis (Pergande)] under the laboratory conditions, and cross-resistance patterns and possible resistance mechanisms in the abamectin-resistant strain (ABA-R) were investigated. Compared with the susceptible strain (ABA-S), the ABA-R strain displayed 45.5-fold resistance to abamectin after 15 selection cycles during 18 generations. Rapid reversion of abamectin resistance was observed in the ABA-R strain in the absence of the insecticide selection pressure. Moderate and low levels of cross-resistance to chlorpyrifos (RR 11.4) and lambda-cyhalothrin (3.98) were observed in the ABA-R strain, but no significant cross-resistance was found to spinosad (2.00), acetamiprid (1.47) and chlorfenapyr (0.26). Our studies also showed that the esterase inhibitor S,S,S-tributyl phosphorotrithioate (DEF) and glutathione S-transferase inhibitor diethyl maleate (DEM) were not able to synergize the toxicity of abamectin, whereas the oxidase inhibitor piperonyl butoxide (PBO) conferred a significant synergism on abamectin in the ABA-R strain (SR 3.00). Biochemical analysis showed that cytochrome P450 monooxygenase activity of the ABA-R strain was 6.66-fold higher than that of the ABA-S strain. It appears that enhanced oxidative metabolism mediated by cytochrome P450 monooxygenases was a major mechanism for abamectin resistance in the western flower thrips. (C) 2011 Elsevier Inc. All rights reserved.
学科主题	Biochemistry & Molecular Biology ; Entomology ; Physiology ; BIOCHEMISTRY & MOLECULAR BIOLOGY ; ENTOMOLOGY ; PHYSIOLOGY
语种	英语
出版者	ACADEMIC PRESS INC ELSEVIER SCIENCE
WOS记录号	WOS:000295152800006
内容类型	期刊论文
源URL	[http://111.203.20.206/handle/2HMLN22E/101140]
专题	蔬菜花卉研究所_职能部门
作者单位	1.Yangzhou Univ, Coll Hort & Plant Protect, Yangzhou 225009, Peoples R China 2.Chinese Acad Agr Sci, Inst Vegetables & Flowers, Beijing 100081, Peoples R China
推荐引用方式 GB/T 7714	Chen, Xuelin,Yuan, Linze,Du, Yuzhou,et al. Cross-resistance and biochemical mechanisms of abamectin resistance in the western flower thrips, Frankliniella occidentalis[J]. PESTICIDE BIOCHEMISTRY AND PHYSIOLOGY,2011,101(1):34-38.
APA	Chen, Xuelin,Yuan, Linze,Du, Yuzhou,Zhang, Youjun,&Wang, Jianjun.(2011).Cross-resistance and biochemical mechanisms of abamectin resistance in the western flower thrips, Frankliniella occidentalis.PESTICIDE BIOCHEMISTRY AND PHYSIOLOGY,101(1),34-38.
MLA	Chen, Xuelin,et al."Cross-resistance and biochemical mechanisms of abamectin resistance in the western flower thrips, Frankliniella occidentalis".PESTICIDE BIOCHEMISTRY AND PHYSIOLOGY 101.1(2011):34-38.