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Effects of Nano-Cerium Oxide on Seed Germination and Seedling Growth of Vitex negundo

Zi Yang, Shixian Fan, Xuehan Wei, Zhiming Zhang, Xin Gui*, Yong Zhao*

College of Forestry, Henan Agricultural University, Zhengzhou, 450002, China

* Corresponding Authors: Xin Gui. Email: email; Yong Zhao. Email: email

Phyton-International Journal of Experimental Botany 2020, 89(4), 893-903. https://doi.org/10.32604/phyton.2020.013644

Abstract

Cerium oxide nanoparticles (CeO2NPs) are likely to have dramatic impacts on plant performances, yet the effects of CeO2NPs on seed germination and seedling growth have not been fully explored. In this study, the seed germination and seedling growth of subshrub species Vitex negundo under different concentrations of CeO2NPs (low-1 mg/L, medium-100 mg/L, high-500 mg/L) have been discussed. Results showed that: (1) The seed germination rate reduces by 11.25% and 2.5% under the low and medium concentrations of CeO2NPs, respectively, but increased by 7.08% under the high concentration; (2) CeO2NPs had significant effects on the growth traits (root length, shoot height and biomass) of seedlings, being the highest under the medium concentration and the lowest under the highest concentration; (3) The superoxide dismutase activity was the maximum (355.91 U/g), but the protein concentration was the minimum (3.85 ug/mL) under the high concentration of CeO2NPs. Our results indicated that the effects of CeO2NPs on seed germination and seedling growth are concentrationdependency, i.e., low and medium concentrations inhibited while high concentration promoted seed germination, however, seedling growth showed opposite responses. Therefore, appropriate CeO2NPs concentrations are beneficial to the seed germination and seedling growth of Vitex negundo and improve the physiological performance of seedlings and enhance their adaptability to environmental adversity.

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APA Style
Yang, Z., Fan, S., Wei, X., Zhang, Z., Gui, X. et al. (2020). Effects of nano-cerium oxide on seed germination and seedling growth of vitex negundo. Phyton-International Journal of Experimental Botany, 89(4), 893-903. https://doi.org/10.32604/phyton.2020.013644
Vancouver Style
Yang Z, Fan S, Wei X, Zhang Z, Gui X, Zhao Y. Effects of nano-cerium oxide on seed germination and seedling growth of vitex negundo. Phyton-Int J Exp Bot. 2020;89(4):893-903 https://doi.org/10.32604/phyton.2020.013644
IEEE Style
Z. Yang, S. Fan, X. Wei, Z. Zhang, X. Gui, and Y. Zhao "Effects of Nano-Cerium Oxide on Seed Germination and Seedling Growth of Vitex negundo," Phyton-Int. J. Exp. Bot., vol. 89, no. 4, pp. 893-903. 2020. https://doi.org/10.32604/phyton.2020.013644



cc This work is licensed under a Creative Commons Attribution 4.0 International License , which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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