Demonstration of an adaptive response to preconditioning Frankliniella occidentalis (Pergande) to sublethal doses of spinosad: a hormetic-dose response

doi:10.1007/s10646-015-1461-5

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	Demonstration of an adaptive response to preconditioning Frankliniella occidentalis (Pergande) to sublethal doses of spinosad: a hormetic-dose response
	Gong, Youhui 1,2; Xu, Baoyun 1; Zhang, Youjun 1; Gao, Xiwu 1,2; Wu, Qingjun 1
刊名	ECOTOXICOLOGY
	2015
卷号	24 期号:5 页码:1141-1151
关键词	Frankliniella occidentalis (Pergande) Spinosad Sublethal effect Adaptation Hormesis
ISSN号	0963-9292
DOI	10.1007/s10646-015-1461-5
通讯作者	Gong, Youhui
英文摘要	Sublethal doses of some insecticides have been reported to either stimulate or reduce the survival and fecundity of insects. Many sublethal-effect studies have been conducted after exposure of only one generation to sublethal insecticides, and there is little information about the sublethal effects on insects after long-term exposure to sublethal insecticides. In this study, changes in biological characteristics were investigated in spinosad-susceptible (Spin-S) and sublethal-spinosad-treated (Spin-Sub) strains of Frankliniella occidentalis (Pergande) after exposure to their corresponding sublethal concentrations of spinosad. The results showed that for the Spin-S strain, the LC10 concentration of spinosad slightly affected the biotic fitness both in parents and offspring of F. occidentalis. The LC25 concentration of spinosad prolonged the development time, reduced the fecundity, and significantly reduced the intrinsic rate of increase, the net reproductive rate and the finite rate of increase in the Spin-S strain. However, the negative effects were not as pronounced in the offspring (F1 generation) as in the parent generation. For the Spin-Sub strain, the LC10 and LC25 concentrations of spinosad had little negative effect on the development and fecundity, and no significant difference was found between the effects of the LC10 and LC25 treatments on the Spin-Sub strain. The Spin-Sub strain exhibited a shorter developmental time, and larger intrinsic rates of increase and net reproductive rates, compared with the corresponding treatments of the Spin-S strain. These findings combined with our previous studies suggest that the biotic fitness increased in the Spin-Sub strain and the strain became more adaptable to sublethal doses of spinosad, compared with the Spin-S strain. Physiological and biochemical adaptation may contribute to these changes after long treatment times at sublethal doses.
学科主题	Ecology ; Environmental Sciences ; Toxicology
语种	英语
出版者	SPRINGER
WOS记录号	WOS:000355927100016
内容类型	期刊论文
源URL	[http://111.203.20.206/handle/2HMLN22E/101785]
专题	蔬菜花卉研究所
作者单位	1.Chinese Acad Agr Sci, Inst Vegetables & Flowers, Dept Plant Protect, Beijing 100081, Peoples R China 2.China Agr Univ, Dept Entomol, Beijing 100094, Peoples R China
推荐引用方式 GB/T 7714	Gong, Youhui,Xu, Baoyun,Zhang, Youjun,et al. Demonstration of an adaptive response to preconditioning Frankliniella occidentalis (Pergande) to sublethal doses of spinosad: a hormetic-dose response[J]. ECOTOXICOLOGY,2015,24(5):1141-1151.
APA	Gong, Youhui,Xu, Baoyun,Zhang, Youjun,Gao, Xiwu,&Wu, Qingjun.(2015).Demonstration of an adaptive response to preconditioning Frankliniella occidentalis (Pergande) to sublethal doses of spinosad: a hormetic-dose response.ECOTOXICOLOGY,24(5),1141-1151.
MLA	Gong, Youhui,et al."Demonstration of an adaptive response to preconditioning Frankliniella occidentalis (Pergande) to sublethal doses of spinosad: a hormetic-dose response".ECOTOXICOLOGY 24.5(2015):1141-1151.