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转bt基因作物对水生生态系统的影响研究进展

DOI: 10.3724/SP.J.1145.2013.00569, PP. 569-574

Keywords: 转基因作物,苏云金杆菌,bt蛋白,毛翅目,水生生态系统

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Abstract:

转bt基因作物的种植可使bt蛋白通过根际分泌物、花粉和作物残体等途径进入其周围水环境中,从而对水环境中水生生物的安全构成潜在的风险.综合近几年来的研究,结果显示,bt作物残体在水体中的分解速度与是否转入bt基因无关,但是高浓度的bt蛋白(cryi类)会对与鳞翅目亲缘关系较近的毛翅目产生不良影响,从而提出bt作物的大规模长期种植可能会对其周围的水生生态系统产生负面影响.因此,有必要深入、系统地研究和评价bt作物释放的bt蛋白对水生生态系统的影响.最后,提议在室内长期监测bt蛋白对多种代表性水生生物的影响.图1表1参40

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