Comparative study of Cd tolerance and accumulation potential between Cakile maritima L. (halophyte) and Brassica juncea L.

Taamalli , Manel;Ghabriche, Rim;Amari, Taoufik;Mnasri, , Mejda;Lutts, Stanley;et.al.
(2014) Ecological Engineering — Vol. 71, p. 623-627 (2014)

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Authors
  • Taamalli , ManelLaboratoire des palntes extremophiles, Centre de biotechnologie de Borj Cedri, Hamm-Lif, Tunisia
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  • Ghabriche, RimLaboratoire des palntes extremophiles, Centre de biotechnologie de Borj Cedri, Hamm-Lif, Tunisia
    Author
  • Amari, TaoufikLaboratoire des palntes extremophiles, Centre de biotechnologie de Borj Cedri, Hamm-Lif, Tunisia
    Author
  • Mnasri, , MejdaLaboratoire des palntes extremophiles, Centre de biotechnologie de Borj Cedri, Hamm-Lif, Tunisia
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  • Lutts, StanleyUCLouvain
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Abstract
In this work we evaluated Cd-phytoextraction ability of the halophyte Cakile maritima comparatively to the glycophyte Brassica juncea commonly recommended for phytoextraction. Seedlings were grown in nutrient solution added with 0–100 M Cd for 21 days. Cd impaired growth in B. juncea but had no significant impact on C. maritima. The halophyte C. maritima maintained also higher photosynthetic activity than the glycophyte B. juncea. Cd decreased leaf chlorophyll (Chl) and carotenoids concentrations as well as PSII efficiency (Fv/Fm, Fv/F0 and ˚PSII) in B. juncea while it increased intercellular CO2 concentration in this species. Shoot Cd content was higher in the halophyte C. maritima reaching 1365 g g−1dw at 100 M while it was 548 g g−1dw in B. juncea at the same dose. The translocation factor (TF) was higher for C. maritima than for B. juncea at all external Cd doses. It is concluded that the halophyte C. maritima could be considered as a promising plant material for Cd-phytoextraction. ©
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Taamalli, M., Ghabriche, R., Amari, T., Mnasri, ,. M., Abdely, C., Ghnaya, T., Zolla, L., & Lutts, S. (2014). Comparative study of Cd tolerance and accumulation potential between Cakile maritima L. (halophyte) and Brassica juncea L. Ecological Engineering, 71, 623-627. https://doi.org/10.1016/j.ecoleng.2014.08.013 (Original work published 2014)