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Bt Crops Producing Cry1Ac, Cry2Ab and Cry1F Do Not Harm the Green Lacewing, Chrysoperla rufilabris

文献类型： 外文期刊

作者： Tian, Jun-Ce 2 ; Wang, Xiang-Ping 1 ; Long, Li-Ping 1 ; Romeis, Joerg 5 ; Naranjo, Steven E. 6 ; Hellmich, Richard 1 ;

作者机构： 1.Cornell Univ, New York State Agr Expt Stn, Dept Entomol, Geneva, NY 14456 USA

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

3.Yangtze Univ, Coll Agr, Jinzhou, Hubei, Peoples R China

4.Guangxi Acad Agr Sci, Rice Res Inst, Nanning, Guangxi, Peoples R China

5.Agroscope Reckenholz Tanikon Res Stn ART, Zurich, Switzerland

6.USDA ARS, Arid Land Agr Res Ctr, Maricopa, AZ USA

7.Iowa State Univ, USDA ARS, Corn Insects & Crop Genet Res Unit, Ames, IA USA

8.Iowa State Univ, Dept Entomol, Ames, IA USA

9.Cornell Univ, Dept Plant Breeding & Genet, Ithaca, NY USA

期刊名称：PLOS ONE （ 影响因子：3.24； 五年影响因子：3.788 ）

ISSN： 1932-6203

年卷期： 2013 年 8 卷 3 期

页码：

收录情况： SCI

摘要： The biological control function provided by natural enemies is regarded as a protection goal that should not be harmed by. he application of any new pest management tool. Plants producing Cry proteins from the bacterium, Bacillus thuringiensis (Bt), have become a major tactic for controlling pest Lepidoptera on cotton and maize and risk assessment studies are needed to ensure they do not harm important natural enemies. However, using Cry protein susceptible hosts as prey often compromises such studies. To avoid this problem we utilized pest Lepidoptera, cabbage looper (Trichoplusia ni) and fall armyworm (Spodoptera frugiperda), that were resistant to Cry1Ac produced in Bt broccoli (T. ni), Cry1Ac/Cry2Ab produced in Bt cotton (T ni), and Cry1F produced in Bt maize (S. frugiperda). Larvae of these species were fed Bt plants or non-Bt plants and then exposed to predaceous larvae of the green lacewing Chrysoperla rufilabris. Fitness parameters (larval survival, development time, fecundity and egg hatch) of C. rufilabris were assessed over two generations. There were no differences in any of the fitness parameters regardless if C. rufilabris consumed prey (71 ni or S. frugiperda) that had consumed Bt or non-plants. Additional studies confirmed that the prey contained bioactive Cry proteins when they were consumed by the predator. These studies confirm that Cry1Ac, Cry2Ab and Cry1F do not pose a hazard to the important predator C. rufilabris. This study also demonstrates the power of using resistant hosts when assessing the risk of genetically modified plants on non-target organisms.

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