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Effects of platinum nanoparticles on rice seedlings (Oryza sativa L.) : size-dependent accumulation, transformation, and ionomic influence

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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 simulta-neously 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
platinum nanoparticle, rice seedling, accumulation, phytotoxicity, ionomic response, PARTICLE ICP-MS, METALLIC NANOPARTICLES, GOLD NANOPARTICLES, SILVER, PLANTS, MAIZE, IDENTIFICATION, TOXICITY, ELEMENTS, HEALTH

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MLA
Zhou, Yaoyu, et al. “Effects of Platinum Nanoparticles on Rice Seedlings (Oryza Sativa L.) : Size-Dependent Accumulation, Transformation, and Ionomic Influence.” ENVIRONMENTAL SCIENCE & TECHNOLOGY, vol. 57, no. 9, 2023, pp. 3733–45, doi:10.1021/acs.est.2c07734.
APA
Zhou, Y., Liu, X., Yang, X., Du Laing, G., Yang, Y., Tack, F., … Bundschuh, J. (2023). Effects of platinum nanoparticles on rice seedlings (Oryza sativa L.) : size-dependent accumulation, transformation, and ionomic influence. ENVIRONMENTAL SCIENCE & TECHNOLOGY, 57(9), 3733–3745. https://doi.org/10.1021/acs.est.2c07734
Chicago author-date
Zhou, Yaoyu, Xin Liu, Xiao Yang, Gijs Du Laing, Yuan Yang, Filip Tack, Michael S. Bank, and Jochen Bundschuh. 2023. “Effects of Platinum Nanoparticles on Rice Seedlings (Oryza Sativa L.) : Size-Dependent Accumulation, Transformation, and Ionomic Influence.” ENVIRONMENTAL SCIENCE & TECHNOLOGY 57 (9): 3733–45. https://doi.org/10.1021/acs.est.2c07734.
Chicago author-date (all authors)
Zhou, Yaoyu, Xin Liu, Xiao Yang, Gijs Du Laing, Yuan Yang, Filip Tack, Michael S. Bank, and Jochen Bundschuh. 2023. “Effects of Platinum Nanoparticles on Rice Seedlings (Oryza Sativa L.) : Size-Dependent Accumulation, Transformation, and Ionomic Influence.” ENVIRONMENTAL SCIENCE & TECHNOLOGY 57 (9): 3733–3745. doi:10.1021/acs.est.2c07734.
Vancouver
1.
Zhou Y, Liu X, Yang X, Du Laing G, Yang Y, Tack F, et al. Effects of platinum nanoparticles on rice seedlings (Oryza sativa L.) : size-dependent accumulation, transformation, and ionomic influence. ENVIRONMENTAL SCIENCE & TECHNOLOGY. 2023;57(9):3733–45.
IEEE
[1]
Y. Zhou et al., “Effects of platinum nanoparticles on rice seedlings (Oryza sativa L.) : size-dependent accumulation, transformation, and ionomic influence,” ENVIRONMENTAL SCIENCE & TECHNOLOGY, vol. 57, no. 9, pp. 3733–3745, 2023.
@article{01H39T3SNRK6WZZY5S61V11CF1,
  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 simulta-neously 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.}},
  author       = {{Zhou, Yaoyu and Liu, Xin and Yang, Xiao and Du Laing, Gijs and Yang, Yuan and Tack, Filip and Bank, Michael S. and Bundschuh, Jochen}},
  issn         = {{0013-936X}},
  journal      = {{ENVIRONMENTAL SCIENCE & TECHNOLOGY}},
  keywords     = {{platinum nanoparticle,rice seedling,accumulation,phytotoxicity,ionomic response,PARTICLE ICP-MS,METALLIC NANOPARTICLES,GOLD NANOPARTICLES,SILVER,PLANTS,MAIZE,IDENTIFICATION,TOXICITY,ELEMENTS,HEALTH}},
  language     = {{eng}},
  number       = {{9}},
  pages        = {{3733--3745}},
  title        = {{Effects of platinum nanoparticles on rice seedlings (Oryza sativa L.) : size-dependent accumulation, transformation, and ionomic influence}},
  url          = {{http://doi.org/10.1021/acs.est.2c07734}},
  volume       = {{57}},
  year         = {{2023}},
}

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