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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

文献类型：期刊论文

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作者Duan, DC; Peng, C; Xu, C; Yu, MG; Sun, LJ; Worden, N; Shi, JY; Hu, TD;胡天斗
刊名PLANT AND SOIL ; PLANT AND SOIL
出版日期2014 ; 2014
卷号382期号:1-2页码:103-115
关键词XANES Lead (Pb) Rhizosphere Phytoavailability Tea polyphenols (TPs) XANES Lead (Pb) Rhizosphere Phytoavailability Tea polyphenols (TPs)
ISSN号0032-079X
DOI10.1007/s11104-014-2152-3
英文摘要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.; 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.
学科主题Agriculture; Plant Sciences ; Agriculture; Plant Sciences
收录类别SCI
电子版国际标准刊号1573-5036
语种英语
WOS记录号WOS:000341089300008 ; WOS:000341089300008
公开日期2016-05-03
源URL[http://ir.ihep.ac.cn/handle/311005/225308]  
专题高能物理研究所_多学科研究中心
推荐引用方式
GB/T 7714		 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, 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, PLANT AND SOIL,2014, 2014,382, 382(1-2):103-115, 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.

入库方式： OAI收割

来源：高能物理研究所

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