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Lead phytoavailability change driven by its speciation transformation after the addition of tea polyphenols (TPs): Combined selective sequential extraction (SSE) and XANES analysis
Duan, DC; Peng, C; Xu, C; Yu, MG; Sun, LJ; Worden, N; Shi, JY; Hu, TD;胡天斗
2014
发表期刊PLANT AND SOIL
卷号382期号:1-2页码:103-115
摘要Metal species in rhizosphere soil profoundly influence their mobility and phytoavailability. Clarifying the speciation transformation of heavy metals helps understand their translocation and accumulation in plants. Single extraction, selective sequential extraction (SSE) and X-ray absorption near-edge structure (XANES) spectroscopy were employed to investigate the speciation transformation of lead (Pb) and its influence on metal accumulation in tea plants after the addition of tea polyphenols (TPs). Pb content was decreased in young leaves and stems, whereas increased in roots, after TPs were amended to soil. Both SSE and XANES analysis suggested bioavailable Pb was transformed to organically bound Pb after the addition of TPs. The increased percentage of organically bound Pb might be fixed in the cell wall of plant root through a ternary complex formed between the Pb-organic matter complex and cell wall components. Therefore, Pb translocation from roots to young tissues was decreased. Pb phytoavailability change was driven by its speciation transformation after the addition of TPs. Combined SSE and XANES spectroscopy represent powerful tools to study metal speciation transformation in plant and soil systems.
关键词XANES Lead (Pb) Rhizosphere Phytoavailability Tea polyphenols (TPs)
学科领域Agriculture; Plant Sciences
DOI10.1007/s11104-014-2152-3
收录类别SCI
WOS记录号WOS:000341089300008
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被引频次:5[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ihep.ac.cn/handle/311005/225308
专题多学科研究中心
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Duan, DC,Peng, C,Xu, C,et al. Lead phytoavailability change driven by its speciation transformation after the addition of tea polyphenols (TPs): Combined selective sequential extraction (SSE) and XANES analysis[J]. PLANT AND SOIL,2014,382(1-2):103-115.
APA Duan, DC.,Peng, C.,Xu, C.,Yu, MG.,Sun, LJ.,...&Hu, TD;胡天斗.(2014).Lead phytoavailability change driven by its speciation transformation after the addition of tea polyphenols (TPs): Combined selective sequential extraction (SSE) and XANES analysis.PLANT AND SOIL,382(1-2),103-115.
MLA Duan, DC,et al."Lead phytoavailability change driven by its speciation transformation after the addition of tea polyphenols (TPs): Combined selective sequential extraction (SSE) and XANES analysis".PLANT AND SOIL 382.1-2(2014):103-115.
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