美国研究人员在最新一期英国《自然》杂志上撰文称,他们首次发现转基因作物产生的杀虫用毒素可由根部渗入周围土壤。但他们同时强调说,这一发现是在实验室中获得的,转基因作物毒素渗入土壤后对自然环境将产生何种影响需作进一步的田间研究才能得出结论。 In a recent article in the journal Nature in the United Kingdom, U.S. researchers said they first discovered that insecticidal toxins produced by genetically modified crops can penetrate the surrounding soil from the roots. At the same time, however, they stressed that the finding was obtained in the laboratory and that further studies in the field were needed to reach a conclusion as to how the toxic effects of GMO toxins on the soil would affect the natural environment.