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http://hdl.handle.net/1942/2669
Title: | Accumulation forms of Zn and Pb in Phaseolus vulgaris in the presence and absence of EDTA | Authors: | Sarret, Géraldine VANGRONSVELD, Jaco Manceau, Alain Musso, Martine D'HAEN, Jan Menthonnex, Jean-Jacques Hazemann, Jean-Louis |
Issue Date: | 2001 | Publisher: | AMER CHEMICAL SOC | Source: | ENVIRONMENTAL SCIENCE & TECHNOLOGY, 35(13). p. 2854-2859 | Abstract: | The internalized speciation of Zn and Pb in roots and leaves of Phaseolus vulgaris grown in zinc sulfate, zinc EDTA, lead nitrate, and lead EDTA solutions were studied by electron microscopy (Zn) and extended X-ray absorption fine structure (EXAFS) spectroscopy (Zn and Pb). Zn was predominantly present as Zn phosphate dihydrate in the roots and leaves of the plant regardless of its form in solution. ph was predominantly found in the leaves as cerussite (lead carbonate) when the plant was grown in Pb nitrate solution and as a mixture of PbEDTA and an undetermined species in contact with PbEDTA solution. Therefore, Phaseolus vulgaris is able to dissociate totally (Zn) or partly(Pb)the two metal-EDTA complexes from the nutrient solution and to bind these metals in other forms. | Notes: | Univ Grenoble, Environm Geochem Grp, LGIT, IRIGM, F-38041 Grenoble 9, France. CNRS, F-38041 Grenoble, France. Limburgs Univ Ctr, Inst Sci Mat, B-3590 Diepenbeek, Belgium. CNRS, Cristallog Lab, F-38042 Grenoble 9, France.Sarret, G, Univ Grenoble, Environm Geochem Grp, LGIT, IRIGM, BP 53, F-38041 Grenoble 9, France. | Document URI: | http://hdl.handle.net/1942/2669 | ISSN: | 0013-936X | e-ISSN: | 1520-5851 | DOI: | 10.1021/es000219d | ISI #: | 000169600100053 | Rights: | (C) 2001 American Chemical Society | Category: | A1 | Type: | Journal Contribution | Validations: | ecoom 2002 |
Appears in Collections: | Research publications |
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