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The rice planthopper parasitoid Anagrus nilaparvatae is not at risk when feeding on honeydew derived from Bacillus thuringiensis (Bt) rice

文献类型： 外文期刊

作者： Tian, Jun-Ce 2 ; Wang, Geng-Wei 2 ; Han, Hai-Liang 1 ; Romeis, Joerg 3 ; Zhang, Fa-Cheng 4 ; Ye, Gong-Yin 5 ; Xie, Mao 1 ;

作者机构： 1.Zhejiang Acad Agr Sci, Dongyang Inst Maize, Expt Stn, Midzhejiang Area, Dongyang 322001, Peoples R China

2.Zhejiang Acad Agr Sci, Inst Plant Protect & Microbiol, State Key Lab Breeding Base Zhejiang Sustainable, 198 Shiqiao Rd, Hangzhou 310021, Zhejiang, Peoples R China

3.Agroscope, Res Div Agroecol & Environm, Zurich, Switzerland

4.Jinhua Plant Protect Stn, Jinhua, Peoples R China

5.Zhejiang Univ, Inst Insect Sci, State Key Lab Rice Biol, Hangzhou, Zhejiang, Peoples R China

6.Zhejiang Univ, Inst Insect Sci, Minist Agr, Key Lab Agr Entomol, Hangzhou, Zhejiang, Peoples R China

7.Guangxi Z

关键词： risk assessment; natural enemy; honeydew; non-target effects; Bacillus thuringiensis (Bt) rice

期刊名称：PEST MANAGEMENT SCIENCE （ 影响因子：4.845； 五年影响因子：4.674 ）

ISSN： 1526-498X

年卷期： 2018 年 74 卷 8 期

页码：

收录情况： SCI

摘要： BACKGROUNDHoneydew is a sugar-rich excretion produced by sap-feeding Sternorrhyncha and is an important source of carbohydrates for natural enemies, especially for parasitoids. Honeydew derived from genetically modified (GM) crops can contain amounts of the transgene product. Thus, it is a possible route of exposure for natural enemies feeding on honeydew. In the present study, the potential effects of Nilaparvata lugens honeydew derived from Cry1C and Cry2A rice on different life-table parameters and parasitism dynamics of the egg parasitoid Anagrus nilaparvatae were evaluated under laboratory and field conditions. Furthermore, the Bacillus thuringiensis (Bt) levels and the sugar and amino acid composition of honeydew were analyzed. RESULTSResults indicated that A. nilaparvatae was exposed to Bt proteins by feeding on N. lugens honeydew produced from Bt rice. However, honeydew derived from the tested Cry1C and Cry2A rice lines did not affect the development, longevity, emergence rate and fecundity of A. nilaparvatae. Also, the parasitism dynamics in the field remained unaffected. In addition, the sugar and amino acid composition of N. lugens honeydew was not significantly altered for the tested Bt rice lines compared with the parental non-Bt plant. CONCLUSIONThe quality of honeydew derived from the tested Bt rice lines as a food resource for natural enemies was maintained. (c) 2018 Society of Chemical Industry

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