Effects of Platinum Nanoparticles on Rice Seedlings (Oryza sativa L.): Size-dependent Accumulation, Transformation, and Ionomic Influence
Article
Zhou, Yaoyu, Liu, Xin, Yang, Xiao, Laing, Gijs Du, Yang, Yuan, Tack, Filip M. G., Bank, Michael S. and Bundschuh, Jochen. 2023. "Effects of Platinum Nanoparticles on Rice Seedlings (Oryza sativa L.): Size-dependent Accumulation, Transformation, and Ionomic Influence." Environmental Science and Technology. 57 (9), pp. 3733-3745. https://doi.org/10.1021/acs.est.2c07734
Article Title | Effects of Platinum Nanoparticles on Rice Seedlings (Oryza sativa L.): Size-dependent Accumulation, Transformation, and Ionomic Influence |
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ERA Journal ID | 4674 |
Article Category | Article |
Authors | Zhou, Yaoyu, Liu, Xin, Yang, Xiao, Laing, Gijs Du, Yang, Yuan, Tack, Filip M. G., Bank, Michael S. and Bundschuh, Jochen |
Journal Title | Environmental Science and Technology |
Journal Citation | 57 (9), pp. 3733-3745 |
Number of Pages | 13 |
Year | 2023 |
Publisher | American Chemical Society |
Place of Publication | United States |
ISSN | 0013-936X |
1520-5851 | |
Digital Object Identifier (DOI) | https://doi.org/10.1021/acs.est.2c07734 |
Web Address (URL) | https://pubs.acs.org/doi/full/10.1021/acs.est.2c07734 |
Abstract | Platinum nanoparticles (PtNPs) are increasing in the environment largely due to their wide use and application in automobile and medical industries. The mechanism of uptake behavior of different-sized PtNPs and their association with PtNPs-induced phytotoxicity to plants remains unclear. The present study investigated PtNP uptake mechanisms and phytotoxicity simultaneously to further understand the accumulation and transformation dynamics. The uptake mechanisms were investigated by comparing the uptake and toxicological effects of three different-sized PtNPs (25, 50, and 70 nm) on rice seedlings across an experimental concentration gradient (0.25, 0.5, and 1 mg/L) during germination. The quantitative and qualitative results indicated that 70 nm-sized PtNPs were more efficiently transferred in rice roots. The increase in the PtNP concentration restricted the particle uptake. Particle aggregation was common in plant cells and tended to dissolve on root surfaces. Notably, the dissolution of small particles was simultaneous with the growth of larger particles after PtNPs entered the rice tissues. Ionomic results revealed that PtNP accumulation induced element homeostasis in the shoot ionome. We observed a significant positive correlation between the PtNP concentration and Fe and B accumulation in rice shoots. Compared to particle size, the exposure concentration of PtNPs had a stronger effect on the shoot ionomic response. Our study provides better understanding of the correlation of ionomic change and NP quantitative accumulation induced by PtNPs in rice seedlings. |
Keywords | accumulation; platinumnanoparticle; rice seedling; phytotoxicity; ionomicresponse |
ANZSRC Field of Research 2020 | 4005. Civil engineering |
Public Notes | Files associated with this item cannot be displayed due to copyright restrictions. |
Byline Affiliations | Hunan Agricultural University, China |
Chinese Academy of Sciences, China | |
Ghent University, Belgium | |
University of Massachusetts, United States | |
Institute of Marine Research, Norway | |
National Chung Cheng University, Taiwan | |
University of Southern Queensland |
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https://research.usq.edu.au/item/z274z/effects-of-platinum-nanoparticles-on-rice-seedlings-oryza-sativa-l-size-dependent-accumulation-transformation-and-ionomic-influence
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