Department of Entomology and MOA Key Lab of Pest Monitoring and Green Management, China Agricultural University, Beijing, China.
Department of Agriculture Science, China Agricultural University, Beijing, China.
Environ Sci Pollut Res Int. 2019 Feb;26(6):5814-5819. doi: 10.1007/s11356-018-4025-4. Epub 2019 Jan 6.
From 2014 to 2016, individuals of the principal non-target arthropod (NTA) species in a field of Bt maize expressing the Cry1Ac protein (Bt38) were compared to those in a control field of the corresponding non-transformed near isoline (Z58). For all 3 years, the population dynamics and biodiversity of NTAs were analyzed to determine if any differences might be attributable to the genetically modified (GM) maize being evaluated. The main NTAs in these fields were Aphidoidea, Pentatomidae,Araneae, and Coccinellidae. Temporal variation in NTA diversity across sample dates within a year showed no significant differences between the Bt maize and the non-Bt maize field in the total number of individuals of the dominant arthropod species per 25 plants, the Shannon index (H), Pielou index (J), Simpson index (D), and Bray-Curtis index. The cultivation of Bt corn failed to show any detrimental evidence on individuals, H, J, D, and Bray-Curtis index of NTAs, and these parameters were identical in Bt and non-Bt corn plots. These results provide further evidence of the lack of ecological impact of GM maize.
从 2014 年到 2016 年，对表达 Cry1Ac 蛋白（Bt38）的 Bt 玉米田地中的主要非靶标节肢动物（NTA）个体与相应非转化近等基因系（Z58）的对照田地中的个体进行了比较。在这 3 年中，分析了 NTA 的种群动态和生物多样性，以确定任何差异是否可能归因于正在评估的转基因（GM）玉米。这些田地中的主要 NTA 是蚜虫科、猎蝽科、蜘蛛目和瓢虫科。在一年中不同采样日期 NTA 多样性的时间变化显示，Bt 玉米和非 Bt 玉米田地中，每 25 株植物中优势节肢动物物种个体总数、香农多样性指数（H）、皮耶罗指数（J）、辛普森指数（D）和布雷-柯蒂斯指数之间没有显著差异。Bt 玉米的种植未能显示出对非靶标生物个体、H、J、D 和布雷-柯蒂斯指数有任何不利影响，Bt 和非 Bt 玉米田中的这些参数是相同的。这些结果进一步证明了转基因玉米对生态没有影响。
