ABSTRACT We evaluated the effects of Bt maize genotypes expressing different Bt proteins on Trichogramma pretiosum. The laboratory bioassays consisted of exposing T. pretiosum to leaf, stem, and pollen of Bt maize genotypes and isogenic lines. The reduction on parasitism was used to classify the treatments according to the IOBC scale. In all bioassays, the reduction on parasitism was lower than 30%, and the Bt maize were harmless to T. pretiosum. The laboratorial method used proved to be reliable to verify harmlessness of Bt maize genotypes expressing different proteins on T. pretiosum.

中文翻译：

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当暴露于营养和生殖结构时，Bt 玉米基因型不会伤害 Trichogramma pretiosum

摘要 我们评估了表达不同 Bt 蛋白的 Bt 玉米基因型对 Trichogramma pretiosum 的影响。实验室生物测定包括将 T. pretiosum 暴露于 Bt 玉米基因型和等基因系的叶、茎和花粉。寄生的减少用于根据 IOBC 量表对治疗进行分类。在所有的生物测定中，寄生减少低于30%，并且Bt玉米对T. pretiosum无害。所使用的实验室方法被证明是可靠的，可以验证在 T. pretiosum 上表达不同蛋白质的 Bt 玉米基因型的无害性。