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fractionationsofrareearthelementsinplantsandtheirconceptivemodel
DING ShiMing1; LIANG Tao2; YAN JunCai3; ZHANG ZiLi3; HUANG ZeChun2; XIE YaNing4
2007
Source Publicationscienceinchinaseriesclifescience
ISSN1006-9305
Volume50Issue:1Pages:#REF!
AbstractFractionations of rare earth elements (REEs) and their mechanisms in soybean were studied through application of exogenous mixed REEs under hydroponic conditions. Significant enrichment of middle REEs (MREEs) and heavy REEs (HREEs) was observed in plant roots and leaves respectively, with slight fractionation between light REEs (LREEs) and HREEs in stems. Moreover, the tetrad effect was observed in these organs. Investigations into REE speciation in roots and in the xylem sap using X-ray absorption spectroscopy (XAS) and nanometer-sized TiO2 adsorption techniques, associated with other controlled experiments, demonstrated that REE fractionations should be dominated by fixation mechanism in roots caused by cell wall absorption and phosphate precipitation, and by the combined effects of fixation mechanism and transport mechanism in aboveground parts caused by solution complexation by intrinsic organic ligands. A conceptive model was established for REE fractionations in plants based on the above studies.
Language英语
Document Type期刊论文
Identifierhttp://ir.igsnrr.ac.cn/handle/311030/129305
Collection中国科学院地理科学与资源研究所
Affiliation1.中铁一局集团第五工程有限公司
2.中国科学院地理科学与资源研究所
3.安徽农业大学
4.中国科学院高能物理研究所
Recommended Citation
GB/T 7714
DING ShiMing,LIANG Tao,YAN JunCai,et al. fractionationsofrareearthelementsinplantsandtheirconceptivemodel[J]. scienceinchinaseriesclifescience,2007,50(1):#REF!.
APA DING ShiMing,LIANG Tao,YAN JunCai,ZHANG ZiLi,HUANG ZeChun,&XIE YaNing.(2007).fractionationsofrareearthelementsinplantsandtheirconceptivemodel.scienceinchinaseriesclifescience,50(1),#REF!.
MLA DING ShiMing,et al."fractionationsofrareearthelementsinplantsandtheirconceptivemodel".scienceinchinaseriesclifescience 50.1(2007):#REF!.
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