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Phytotoxicity and bioaccumulation of ZnO nanoparticles in Schoenoplectus tabernaemontani.
Chemosphere. 2015 Feb; 120:211-9.C

Abstract

The rapid development of nanotechnology will inevitably result in an increasing release of engineered nanoparticles (NPs) to wastewaters. In this study we investigated the fate and toxicity of ZnO NPs in aquatic plant mesocosms, as well as the potential for root accumulation and root-to-shoot translocation of these Zn NPs in the wetland plant Schoenoplectus tabernaemontani exposed to ZnO NPs. The growth of S. tabernaemontani in these hydroponic mesocosms was significantly inhibited by ZnO NPs (1000 mg L(-1)) compared to a control. Levels of Zn in the plant roots for the ZnO NP treatment ranged from 402 to 36513 μg g(-1), while values ranged from 256 to 9429 μg g(-)(1) (dry weight) for Zn(2+) treatment, implying that the uptake of Zn from ZnO NPs was substantially greater than that for Zn(2+). The root uptake (of the initial mass of Zn in the solution) for ZnO NP treatment ranged from 8.6% to 43.5%, while for Zn(2+) treatment they were 1.66% to 17.44%. The low values of the translocation factor for both ZnO NP (0.001-0.05) and Zn(2+) (0.05-0.27) treatments implied that the potential for translocation of Zn NPs from roots to shoots was limited. ZnO NP distribution in the root tissues of S. tabernaemontani was confirmed by scanning electron microscopy (SEM). Transmission electron microscopy (TEM) demonstrated that ZnO NPs could pass through plant cell walls, and were present within the plant cells of S. tabernaemontani.

Authors+Show Affiliations

Advanced Environmental Biotechnology Centre, Nanyang Environment & Water Research Institute, School of Civil and Environmental Engineering, Nanyang Technological University, 1 CleanTech Loop, #06-10, Singapore 637141, Singapore. Electronic address: dqzhang@ntu.edu.sg.Advanced Environmental Biotechnology Centre, Nanyang Environment & Water Research Institute, School of Civil and Environmental Engineering, Nanyang Technological University, 1 CleanTech Loop, #06-10, Singapore 637141, Singapore.School of Chemical and Biological Engineering, N1.2-B1-03, Nanyang Technological University, Singapore.School of Chemical and Biological Engineering, N1.2-B1-03, Nanyang Technological University, Singapore.Graduate School of Public Health, San Diego State University, Hardy Tower 119, 5500 Campanile, San Diego, CA 92182-4162, USA.Advanced Environmental Biotechnology Centre, Nanyang Environment & Water Research Institute, School of Civil and Environmental Engineering, Nanyang Technological University, 1 CleanTech Loop, #06-10, Singapore 637141, Singapore.Department of Chemical Engineering, Imperial College London, London SW7 2AZ, UK.Advanced Environmental Biotechnology Centre, Nanyang Environment & Water Research Institute, School of Civil and Environmental Engineering, Nanyang Technological University, 1 CleanTech Loop, #06-10, Singapore 637141, Singapore.Advanced Environmental Biotechnology Centre, Nanyang Environment & Water Research Institute, School of Civil and Environmental Engineering, Nanyang Technological University, 1 CleanTech Loop, #06-10, Singapore 637141, Singapore.

Pub Type(s)

Journal Article

Language

eng

PubMed ID

25063888

Citation

Zhang, Dongqing, et al. "Phytotoxicity and Bioaccumulation of ZnO Nanoparticles in Schoenoplectus Tabernaemontani." Chemosphere, vol. 120, 2015, pp. 211-9.
Zhang D, Hua T, Xiao F, et al. Phytotoxicity and bioaccumulation of ZnO nanoparticles in Schoenoplectus tabernaemontani. Chemosphere. 2015;120:211-9.
Zhang, D., Hua, T., Xiao, F., Chen, C., Gersberg, R. M., Liu, Y., Stuckey, D., Ng, W. J., & Tan, S. K. (2015). Phytotoxicity and bioaccumulation of ZnO nanoparticles in Schoenoplectus tabernaemontani. Chemosphere, 120, 211-9. https://doi.org/10.1016/j.chemosphere.2014.06.041
Zhang D, et al. Phytotoxicity and Bioaccumulation of ZnO Nanoparticles in Schoenoplectus Tabernaemontani. Chemosphere. 2015;120:211-9. PubMed PMID: 25063888.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Phytotoxicity and bioaccumulation of ZnO nanoparticles in Schoenoplectus tabernaemontani. AU - Zhang,Dongqing, AU - Hua,Tao, AU - Xiao,Fei, AU - Chen,Chunping, AU - Gersberg,Richard M, AU - Liu,Yu, AU - Stuckey,David, AU - Ng,Wun Jern, AU - Tan,Soon Keat, Y1 - 2014/07/30/ PY - 2014/04/18/received PY - 2014/06/15/revised PY - 2014/06/16/accepted PY - 2014/7/27/entrez PY - 2014/7/27/pubmed PY - 2015/12/19/medline KW - Bioaccumulation KW - Phytotoxicity KW - Schoenoplectus tabernaemontani KW - ZnO nanoparticles SP - 211 EP - 9 JF - Chemosphere JO - Chemosphere VL - 120 N2 - The rapid development of nanotechnology will inevitably result in an increasing release of engineered nanoparticles (NPs) to wastewaters. In this study we investigated the fate and toxicity of ZnO NPs in aquatic plant mesocosms, as well as the potential for root accumulation and root-to-shoot translocation of these Zn NPs in the wetland plant Schoenoplectus tabernaemontani exposed to ZnO NPs. The growth of S. tabernaemontani in these hydroponic mesocosms was significantly inhibited by ZnO NPs (1000 mg L(-1)) compared to a control. Levels of Zn in the plant roots for the ZnO NP treatment ranged from 402 to 36513 μg g(-1), while values ranged from 256 to 9429 μg g(-)(1) (dry weight) for Zn(2+) treatment, implying that the uptake of Zn from ZnO NPs was substantially greater than that for Zn(2+). The root uptake (of the initial mass of Zn in the solution) for ZnO NP treatment ranged from 8.6% to 43.5%, while for Zn(2+) treatment they were 1.66% to 17.44%. The low values of the translocation factor for both ZnO NP (0.001-0.05) and Zn(2+) (0.05-0.27) treatments implied that the potential for translocation of Zn NPs from roots to shoots was limited. ZnO NP distribution in the root tissues of S. tabernaemontani was confirmed by scanning electron microscopy (SEM). Transmission electron microscopy (TEM) demonstrated that ZnO NPs could pass through plant cell walls, and were present within the plant cells of S. tabernaemontani. SN - 1879-1298 UR - https://www.unboundmedicine.com/medline/citation/25063888/Phytotoxicity_and_bioaccumulation_of_ZnO_nanoparticles_in_Schoenoplectus_tabernaemontani_ L2 - https://linkinghub.elsevier.com/retrieve/pii/S0045-6535(14)00777-2 DB - PRIME DP - Unbound Medicine ER -