 |
Article dans une revue
Lead accumulation in the roots of grass pea (Lathyrus sativus L.): a novel plant for phytoremediation systems?
Abstract : 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.
https://hal-enpc.archives-ouvertes.fr/hal-00676388
Contributeur : Gilles Varrault <>
Soumis le : lundi 5 mars 2012 - 11:41:11
Dernière modification le : mardi 22 septembre 2020 - 03:52:27
Contributeur : Gilles Varrault <>
Soumis le : lundi 5 mars 2012 - 11:41:11
Dernière modification le : mardi 22 septembre 2020 - 03:52:27