Lead accumulation in the roots of grass pea (Lathyrus sativus L.): a novel plant for phytoremediation systems?

被引：60

作者：

Brunet, Judicaelle ^{[1
]}

Repellin, Anne ^{[1
]}

Varrault, Gilles ^{[2
]}

Terryn, Nancy ^{[3
]}

Zuily-Fodil, Yasmine ^{[1
]}

机构：

[1] Univ Paris Est, UMR 137, IRD, Lab Ecophysiol Mol, F-94010 Creteil, France

[2] Univ Paris Est, ENPC, ENGREF,UMR 102, Ctr Enseignement & Rech Eau Ville & Environm, F-94010 Creteil, France

[3] Univ Ghent, Dept Mol Genet, Inst Plant Biotechnol Developing Countries, B-9000 Ghent, Belgium

来源：

COMPTES RENDUS BIOLOGIES | 2008年 / 331卷 / 11期

关键词：

Accumulation; Calcium; Lathyrus sativus L; Lead; Roots;

D O I：

10.1016/j.crvi.2008.07.002

中图分类号：

Q [生物科学];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

Eleven day-old grass pea plants (Lathyrus sativus L.) were grown hydroponically for 96 h in the presence of 0.5 MM lead nitrate (Pb(NO3)(2)). The survival rate was 100%. The mean lead content (measured by ICP-OES) in root tissues was 153 mg Pb g(-1) dry matter. Over three quarters of the lead was not labile. Compared with control plants, lead-exposed plants showed a six-fold, two-fold and three and a half-fold reduction in their root calcium, zinc and copper contents, respectively. Together, these results suggested that Lathyrus sativus L. was tolerant to a deficiency in essential nutrients and able to store large amounts of lead in its root tissues. Therefore, it could be used for the development of new rhizofiltration systems. To cite this article: J. Brunet et al., C. R. Biologies 331 (2008). (C) 2008 Academie des sciences. Published by Elsevier Masson SAS. All rights reserved.

引用

页码：859 / 864

页数：6

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