CAS OpenIR  > 中科院上海应用物理研究所2011-2020年
Comparative toxicity of nanoparticulate/bulk Yb2O3 and YbCl3 to cucumber (Cucumis sativus)
Zhang, P; Ma, YH; Zhang, ZY; He, X; Guo, Z(郭智); Tai, RZ(邰仁忠); Ding, YY; Zhao, YL; Chai, ZF
AbstractWith the increasing utilization of nanomaterials, there is a growing concern for the potential environmental and health effects of them. To assess the environmental risks of nanomaterials, better knowledge about their fate and toxicity in plants are required. In this work, we compared the phytotoxicity of nanoparticulate Yb2O3, bulk Yb2O3, and YbCl3 center dot 6H(2)O to cucumber plants. The distribution and biotransformation of the three materials in plant roots were investigated in situ by TEM, EDS, as well as synchrotron radiation based methods: STXM and NEXAFS. The decrease of biomass was evident at the lowest concentration (0.32 mg/L) when exposed to nano-Yb2O3, while at the highest concentration, the most severe inhibition was from YbCl3. The inhibition was dependent on the actual amount of toxic Yb uptake by the cucumber plants. In the intercellular regions of the roots, Yb2O3 particles and YbCl3 were all transformed to YbPO4. We speculate that the dissolution of Yb2O3 particles induced by the organic acids exuded from roots played an important role in the phytotoxicity. Only under the nano-Yb2O3 treatment, YbPO4 deposits were found in the cytoplasm of root cells, so the phytotoxicity might also be attributed to the Yb internalized into the cells.
Funding Project应物所项目组
WOS IDWOS:000299864400070
Citation statistics
Document Type期刊论文
Recommended Citation
GB/T 7714
Zhang, P,Ma, YH,Zhang, ZY,et al. Comparative toxicity of nanoparticulate/bulk Yb2O3 and YbCl3 to cucumber (Cucumis sativus)[J]. ENVIRONMENTAL SCIENCE & TECHNOLOGY,2012,46(3).
APA Zhang, P.,Ma, YH.,Zhang, ZY.,He, X.,Guo, Z.,...&Chai, ZF.(2012).Comparative toxicity of nanoparticulate/bulk Yb2O3 and YbCl3 to cucumber (Cucumis sativus).ENVIRONMENTAL SCIENCE & TECHNOLOGY,46(3).
MLA Zhang, P,et al."Comparative toxicity of nanoparticulate/bulk Yb2O3 and YbCl3 to cucumber (Cucumis sativus)".ENVIRONMENTAL SCIENCE & TECHNOLOGY 46.3(2012).
Files in This Item: Download All
File Name/Size DocType Version Access License
Comparative toxicity(1431KB) 开放获取LicenseView Download
Related Services
Recommend this item
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Zhang, P]'s Articles
[Ma, YH]'s Articles
[Zhang, ZY]'s Articles
Baidu academic
Similar articles in Baidu academic
[Zhang, P]'s Articles
[Ma, YH]'s Articles
[Zhang, ZY]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Zhang, P]'s Articles
[Ma, YH]'s Articles
[Zhang, ZY]'s Articles
Terms of Use
No data!
Social Bookmark/Share
File name: Comparative toxicity of nanoparticulate-bulk Yb2O3 and YbCl3 to cucumber (Cucumis sativus).pdf
Format: Adobe PDF
All comments (0)
No comment.

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.