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(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.
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https://hal-bioemco.ccsd.cnrs.fr/bioemco-00457862
Contributor : Yasmine Zuily-Fodil <>
Submitted on : Thursday, February 18, 2010 - 3:39:05 PM
Last modification on : Thursday, March 21, 2019 - 1:03:05 PM

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  • HAL Id : bioemco-00457862, version 1

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Yasmine Zuily-Fodil. Lead accumulation in the roots of grass pea (Lathyrus sativus L.): a novel plant for phytoremediation systems?. C.R. Biologies, 2008, 331, pp.859-854. ⟨bioemco-00457862⟩

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