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首页> 美国卫生研究院文献>Scientific Reports >No impact of transgenic cry1C rice on the rove beetle Paederus fuscipes a generalist predator of brown planthopper Nilaparvata lugens
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No impact of transgenic cry1C rice on the rove beetle Paederus fuscipes a generalist predator of brown planthopper Nilaparvata lugens

机译：转基因cry1C水稻对褐飞虱Nilaparvata lugens的全捕食性硬皮甲虫Paederus fuscipes没有影响

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摘要

T1C-19 is newly developed transgenic rice active against lepidopteran pests, and expresses a synthesized cry1C gene driven by the maize ubiquitin promoter. The brown planthopper, Nilaparvata lugens, is a major non-target pest of rice, and the rove beetle (Paederus fuscipes) is a generalist predator of N. lugens nymphs. As P. fuscipes may be exposed to the Cry1C protein through preying on N. lugens, it is essential to assess the potential effects of transgenic cry1C rice on this predator. In this study, two experiments (a direct feeding experiment and a tritrophic experiment) were conducted to evaluate the ecological risk of cry1C rice to P. fuscipes. No significant negative effects were observed in the development, survival, female ratio and body weight of P. fuscipes in both treatments of direct exposure to elevated doses of Cry1C protein and prey-mediated exposure to realistic doses of the protein. This indicated that cry1C rice had no detrimental effects on P. fuscipes. This work represents the first study of an assessment continuum for the effects of transgenic cry1C rice on P. fuscipes. Use of the rove beetle as an indicator species to assess potential effects of genetically modified crops on non-target arthropods is feasible.
机译：T1C-19是新开发的对鳞翅目害虫具有活性的转基因水稻，并表达由玉米泛素启动子驱动的合成cry1C基因。褐飞虱，Nilaparvata lugens，是水稻的主要非标靶害虫，而ve甲（Paederus fuscipes）是N. lugens若虫的通体捕食者。由于脓性疟原虫可能会通过捕食黄褐猪笼草而暴露于Cry1C蛋白，因此评估转基因cry1C水稻对该捕食者的潜在影响至关重要。在这项研究中，进行了两个实验（直接饲喂实验和三养实验），以评估cry1C水稻对脓疱病的生态风险。在直接暴露于升高剂量的Cry1C蛋白和猎物介导的现实剂量的蛋白处理中，都未观察到脓性疟原虫的发育，存活，雌性比例和体重显着的负面影响。这表明cry1C水稻对脓性疟原虫没有有害作用。这项工作代表了转基因cry1C水稻对脓性疟原虫影响评估连续性的首次研究。使用褐甲虫作为指示物种来评估转基因作物对非目标节肢动物的潜在影响。

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