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Xylem and Phloem Based Transport of CeO2 Nanoparticles in Hydroponic Cucumber Plants
Ma YH(马宇辉); He X(何潇); Zhang P(张鹏); Zhang ZY(张智勇); Ding YY(丁雅韵); Zhang JZ(张珺哲); Wang GH(王国华); Xie CJ(谢昌健); Luo WH(罗文赫); Zhang J(张静); Zheng LR(郑黎荣); Chai ZF(柴之芳); Ma, YH; He, X; Zhang, P; Zhang, ZY; Ding, YY; Zhang, JZ; Wang, GH; Xie, CJ; Luo, WH; Zhang, J; Zheng, LR; Chai, ZF; Yang, K
2017
Source PublicationENVIRONMENTAL SCIENCE & TECHNOLOGY
ISSN0013-936X
EISSN1520-5851
Volume51Issue:9Pages:5215-5221
SubtypeArticle
AbstractUptake and translocation of manufactured nanoparticles (NPs) in plants have drawn much attention due to their potential toxicity to the environment, including food webs. In this paper, the xylem and phloem based transport of CeO2 NPs in hydroponic cucumber plants was investigated using a split-root system. One half of the root system was treated with 200 or 2000 mg/L of CeO2 NPs for 3 days, whereas the other half remained untreated, with both halves sharing the same aerial part. The quantitative distribution and speciation of Ce in different plant tissues and xylem sap were analyzed by inductively coupled plasma-mass spectrometry, transmission electron microscope, X-ray absorption near edge structure, and X-ray fluorescence. Results show that about 15% of Ce was reduced from Ce(IV) to Ce(III) in the roots of the treated-side (TS), while almost all of Ce remained Ce(IV) in the blank-side (BS). The detection of CeO2 or its transformation products in the xylem sap, shoots, and BS roots indicates that Ce was transported as a mixture of Ce(IV) and Ce(III) from roots to shoots through xylem, while it was transported almost only in the form of CeO2 from shoots back to roots through phloem. To our knowledge, this is the first report of root-to-shoot-to-root redistribution after transformation of CeO2 NPs in plants, which has significant implications for food safety and human health.
DOI10.1021/acs.est.6b05998
WOS KeywordCERIUM OXIDE NANOPARTICLES ; BIOTRANSFORMATION ; PHYTOTOXICITY ; TRANSLOCATION ; ACCUMULATION ; SATIVUS ; TRANSFORMATION ; EXPOSURE ; MATTER ; STATES
Indexed BySCI ; ADS ; EI ; PUBMED ; MEDLINE ; SCOPUS
Language英语
WOS Research AreaEngineering ; Environmental Sciences & Ecology
WOS SubjectEngineering, Environmental ; Environmental Sciences
WOS IDWOS:000400723200052
EI Accession Number20172403763650
EI KeywordsAbsorption spectroscopy - Antennas - Mass spectrometry - Nanoparticles - Plants (botany) - Transmission electron microscopy - X ray absorption - X ray absorption near edge structure spectroscopy
EI Classification Number711 Electromagnetic Waves - 761 Nanotechnology - 801 Chemistry - 931.3 Atomic and Molecular Physics - 933 Solid State Physics
ADS Bibcode2017EnST...51.5215M
ADS URLhttps://ui.adsabs.harvard.edu/abs/2017EnST...51.5215M
ADS CITATIONShttps://ui.adsabs.harvard.edu/abs/2017EnST...51.5215M/citations
MedlineIDMEDLINE:28383248
Citation statistics
Cited Times:12 [ADS]
Document Type期刊论文
Identifierhttp://ir.ihep.ac.cn/handle/311005/285137
Collection多学科研究中心
实验物理中心
Affiliation中国科学院高能物理研究所
First Author AffilicationInstitute of High Energy
Recommended Citation
GB/T 7714
Ma YH,He X,Zhang P,et al. Xylem and Phloem Based Transport of CeO2 Nanoparticles in Hydroponic Cucumber Plants[J]. ENVIRONMENTAL SCIENCE & TECHNOLOGY,2017,51(9):5215-5221.
APA 马宇辉.,何潇.,张鹏.,张智勇.,丁雅韵.,...&Yang, K.(2017).Xylem and Phloem Based Transport of CeO2 Nanoparticles in Hydroponic Cucumber Plants.ENVIRONMENTAL SCIENCE & TECHNOLOGY,51(9),5215-5221.
MLA 马宇辉,et al."Xylem and Phloem Based Transport of CeO2 Nanoparticles in Hydroponic Cucumber Plants".ENVIRONMENTAL SCIENCE & TECHNOLOGY 51.9(2017):5215-5221.
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