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Interaction between U and Th on their uptake, distribution, and toxicity in V S. alfredii based on the phytoremediation of U and Th
Huang Z.1; Tang S.1; Zhang L.1; Ma L.1; Ding S.1; Du L.2; Zhang D.2; Jin Y.1; Wang R.3; Huang C.1; Xia C.1
2017
Source PublicationEnvironmental Science and Pollution Research
ISSN16147499 09441344
Volume24Issue:3Pages:2996-3005
AbstractVariant Sedum alfredii Hance (V S. alfredii) could simultaneously take up U and Th from water with the highest concentrations recorded as 1.84 × 10 and 6.72 × 10 mg/kg in the roots, respectively. Th stimulated U uptake by V S. alfredii roots at Th (10 μM of Th), however, the opposite was observed at Th (100 μM of Th). A similar result was found in the effect of U on the uptake of Th by V S. alfredii. Subcellular fractionation studies of V S. alfredii indicated that U and Th were mainly stored in cell wall fraction, and much less was found in organelle and soluble fractions. Chemical form examination results showed that water-soluble U and Th were the predominant chemical forms in this plant. Addition of the other radionuclide in aqueous solutions altered the concentration and percentage of U or Th in cell wall fraction and in water-soluble form, resulting in the change of the uptake capacity of U or Th by V S. alfredii roots. Comparing with single U or Th treatment, the plant cells revealed more swollen chloroplasts and enhanced thickening in cell walls under the U + Th treatment, as observed by TEM. Those results collectively displayed that V S. alfredii may be utilized as a potential plant to simultaneously remove U and Th from aqueous solutions (rhizofiltration).
KeywordChemical forms Interaction Phytoremediation Subcellular distribution Thorium Uranium V S. alfredii
DOI10.1007/s11356-016-8037-7
URLView the original
Language英語
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Cited Times [WOS]:2   [WOS Record]     [Related Records in WOS]
Document TypeJournal article
CollectionUniversity of Macau
Affiliation1.Sichuan University
2.China Academy of Engineering Physics
3.University of Macau
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GB/T 7714
Huang Z.,Tang S.,Zhang L.,et al. Interaction between U and Th on their uptake, distribution, and toxicity in V S. alfredii based on the phytoremediation of U and Th[J]. Environmental Science and Pollution Research,2017,24(3):2996-3005.
APA Huang Z..,Tang S..,Zhang L..,Ma L..,Ding S..,...&Xia C..(2017).Interaction between U and Th on their uptake, distribution, and toxicity in V S. alfredii based on the phytoremediation of U and Th.Environmental Science and Pollution Research,24(3),2996-3005.
MLA Huang Z.,et al."Interaction between U and Th on their uptake, distribution, and toxicity in V S. alfredii based on the phytoremediation of U and Th".Environmental Science and Pollution Research 24.3(2017):2996-3005.
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