Department of Chemistry and Biochemistry, George Mason University, Fairfax, Virginia, USA.
J Environ Sci Health A Tox Hazard Subst Environ Eng. 2011;46(14):1732-5. doi: 10.1080/10934529.2011.633403.
The effects of Fe(3)O(4), TiO(2) and carbon nanoparticles on the cucumber (Cucumis sativus) seed germination rate, root elongation and germination index were studied. The nanoparticles used ranged in average particle size from 30-50 nm, and their concentration ranged from 0 to 5000 μg/mL. Inhibitory effects were observed and the reduction in root growth was more obvious than the seed germination percentages. In all cases some perturbations of the normal functions with respect to control in germinating test were observed. The results obtained provide a better understanding of the phytotoxicity of the nanomaterials used in this study, and may help to further understand the interaction of nanoparticles with the environment prior to their use in agriculture.
研究了 Fe(3)O(4)、TiO(2) 和碳纳米粒子对黄瓜（Cucumis sativus）种子发芽率、根伸长和发芽指数的影响。使用的纳米粒子平均粒径为 30-50nm，浓度范围为 0-5000μg/ml。观察到了抑制作用，根生长的减少比种子发芽率更为明显。在所有情况下，与对照相比，发芽试验中观察到一些正常功能的紊乱。所得结果提供了对本研究中使用的纳米材料的植物毒性的更好理解，并可能有助于在将纳米颗粒用于农业之前进一步了解其与环境的相互作用。
