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dc.contributor.authorLai, Ying
dc.contributor.authorWang, Qiuquan
dc.contributor.author王秋泉
dc.contributor.authorYang, Limin
dc.contributor.authorHuang, Benli
dc.contributor.author黄本立
dc.date.accessioned2011-07-12T14:59:10Z
dc.date.available2011-07-12T14:59:10Z
dc.date.issued2006-07
dc.identifier.citationTALANTA,2006,70(1):26-31zh_CN
dc.identifier.issn0039-9140
dc.identifier.urihttp://dx.doi.org/doi:10.1016/j.talanta.2005.12.062
dc.identifier.urihttps://dspace.xmu.edu.cn/handle/2288/10109
dc.description.abstractSubcellular distribution of rare earth elements (REEs, including 14 lanthanides and yttrium) in a newly discovered REE hyperaccumulator, Pronephrium simplex (P. simplex), was determined by a chemical sequence extraction followed by ICP-MS analysis. Results showed that most REEs are associated with cell wall and proteins, and REEs concentration in the proteins, 2899.5 mu g g(-1), is much higher than those in the cell wall; in the chloroplast of P. simplex, REEs distribute almost equally in chloroplast membrane and thylakoid, while most REEs in the thylakoid are binding with photosystem II (PS II); a new REE-binding peptide in the lamina of P. simplex, which can accumulate REEs up to 3000 mu g g(-1) and has higher affinity with light REEs, was characterized, indicating that its molecular mass is 5073 Da, and may have P-sheet structure; isoelectrofocusing electrophoretic photograph indicated that it is acidic peptide with IP of 3.7. Such information should be useful for understanding of both the storage and physiological role of REEs in P. simplex and further studies on the phytoremediation of REEs contaminated environments. (c) 2006 Published by Elsevier B.V.zh_CN
dc.language.isoenzh_CN
dc.publisherELSEVIER SCIENCE BVzh_CN
dc.subjecthyperaccumulatorzh_CN
dc.subjectfernzh_CN
dc.subjectrare earth elementszh_CN
dc.subjectproteinzh_CN
dc.subjectchloroplastzh_CN
dc.subjectphotosystem IIzh_CN
dc.titleSubcellular distribution of rare earth elements and characterization of their binding species in a newly discovered hyperaccumulator Pronephrium simplexzh_CN
dc.typeArticlezh_CN


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