Lizzi Daniel, Mattiello Alessandro, Piani Barbara, Fellet Guido, Adamiano Alessio, Marchiol Luca
DI4A-Department of Agriculture, Food, Environment and Animal Sciences, University of Udine, Via delle Scienze 206, 33100 Udine, Italy.
Department of Life Sciences, University of Trieste, Via Licio Giorgieri 10, 34127 Trieste, Italy.
Nanomaterials (Basel). 2020 Dec 17;10(12):2534. doi: 10.3390/nano10122534.
This study aimed to provide insight regarding the influence of Ce oxide nanoparticles (CeO) with different concentrations and two different particle sizes on the germination and root elongation in seedlings of spontaneous terrestrial species. In a bench-scale experiment, seeds of the monocot, and dicots and were treated with solutions containing CeO 25 nm and 50 nm in the range 0-2000 mg Ce L. The results show that CeO enters within the plant tissues. Even at high concentration, CeO have positive effects on seed germination and the development of the seedling roots. This study further demonstrated that the particle size had no influence on the germination of , while in and the germination percentage was slightly higher (+10%) for seeds treated with CeO 25 nm with respect to 50 nm. In summary, the results indicated that CeO was taken up by germinating seeds, but even at the highest concentrations, they did not have negative effects on plant seedlings. The influence of the different sizes of CeO on germination and root development was not very strong. It is likely that particle agglomeration and ion dissolution influenced the observed effects.
本研究旨在深入了解不同浓度和两种不同粒径的氧化铈纳米颗粒（CeO）对陆生自发物种幼苗发芽和根伸长的影响。在一个实验室规模的实验中，单子叶植物、双子叶植物和的种子用含有0-2000 mg Ce/L的25 nm和50 nm CeO的溶液处理。结果表明，CeO进入植物组织内。即使在高浓度下，CeO对种子发芽和幼苗根系发育也有积极影响。本研究进一步证明，粒径对的发芽没有影响，而在和中，用25 nm CeO处理的种子发芽率比用50 nm CeO处理的种子略高（+10%）。总之，结果表明CeO被发芽种子吸收，但即使在最高浓度下，它们对植物幼苗也没有负面影响。不同粒径的CeO对发芽和根系发育的影响不是很强。颗粒团聚和离子溶解可能影响了观察到的效果。
