Lead accumulation in the roots of grass pea (Lathyrus sativus L.): a novel plant for phytoremediation systems? - École des Ponts ParisTech Accéder directement au contenu
Article Dans Une Revue Comptes Rendus Biologies Année : 2008

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

Résumé

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(NO(3))(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.

Dates et versions

hal-00676388 , version 1 (05-03-2012)

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Citer

Judicaëlle Brunet, Anne Repellin, Gilles Varrault, Nancy Terryn, Yasmine Zuily-Fodil. Lead accumulation in the roots of grass pea (Lathyrus sativus L.): a novel plant for phytoremediation systems?. Comptes Rendus Biologies, 2008, 331 (11), pp.859-64. ⟨10.1016/j.crvi.2008.07.002⟩. ⟨hal-00676388⟩
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