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Hyperaccumulation of metals by Thlaspi caerulescens as affected by root development and Cd-Zn/Ca-Mg interactions.
Int J Phytoremediation. 2004; 6(1):49-61.IJ

Abstract

The aim of this work was to study, in a rhizobox experiment, the phytoextraction of metals by the hyperaccumulator plant Thlaspi caerulescens in relation to the heterogeneity of metal pollution. Six treatments were designed with soils containing various levels of metals. Homogeneous soils and inclusions of soils in other soil matrices were prepared in order to vary metal concentration and localization. Growth parameters of the plant (rosette diameter and shoot biomass) and localization of roots and shoot uptake of Zn, Cd, Ca, and Mg were determined after 10 weeks of growth. The plants grown on the polluted industrial soils provided a larger biomass and had lower mortality rates than those grown on the agricultural soil. Moreover, these plants accumulated more Zn and Cd (up to 17,516 and 375 mg kg(-1) DM, respectively) than plants grown on the agricultural soil (up to 7300 mg Zn kg(-1) and 83 mg Cd kg(-1) DM). The roots preferentially explored metal-contaminated areas. The exploration of polluted soil inclusions by the roots was associated with a higher extraction of metals. Zinc and Cd in the shoots of Thlaspi caerulescens were negatively correlated with Ca and Mg concentrations; however, the soil supply for these two elements was identical. This suggests that there is competition for the uptake of these elements and that Zn is preferentially accumulated.

Authors+Show Affiliations

Laboratoire Sols et Environnement, Vandoeuvre-lès-Nancy, France. carine.saison@csiro.auNo affiliation info availableNo affiliation info available

Pub Type(s)

Evaluation Study
Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

15224775

Citation

Saison, Carine, et al. "Hyperaccumulation of Metals By Thlaspi Caerulescens as Affected By Root Development and Cd-Zn/Ca-Mg Interactions." International Journal of Phytoremediation, vol. 6, no. 1, 2004, pp. 49-61.
Saison C, Schwartz C, Morel JL. Hyperaccumulation of metals by Thlaspi caerulescens as affected by root development and Cd-Zn/Ca-Mg interactions. Int J Phytoremediation. 2004;6(1):49-61.
Saison, C., Schwartz, C., & Morel, J. L. (2004). Hyperaccumulation of metals by Thlaspi caerulescens as affected by root development and Cd-Zn/Ca-Mg interactions. International Journal of Phytoremediation, 6(1), 49-61.
Saison C, Schwartz C, Morel JL. Hyperaccumulation of Metals By Thlaspi Caerulescens as Affected By Root Development and Cd-Zn/Ca-Mg Interactions. Int J Phytoremediation. 2004;6(1):49-61. PubMed PMID: 15224775.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Hyperaccumulation of metals by Thlaspi caerulescens as affected by root development and Cd-Zn/Ca-Mg interactions. AU - Saison,Carine, AU - Schwartz,Christophe, AU - Morel,Jean-Louis, PY - 2004/7/1/pubmed PY - 2004/7/30/medline PY - 2004/7/1/entrez SP - 49 EP - 61 JF - International journal of phytoremediation JO - Int J Phytoremediation VL - 6 IS - 1 N2 - The aim of this work was to study, in a rhizobox experiment, the phytoextraction of metals by the hyperaccumulator plant Thlaspi caerulescens in relation to the heterogeneity of metal pollution. Six treatments were designed with soils containing various levels of metals. Homogeneous soils and inclusions of soils in other soil matrices were prepared in order to vary metal concentration and localization. Growth parameters of the plant (rosette diameter and shoot biomass) and localization of roots and shoot uptake of Zn, Cd, Ca, and Mg were determined after 10 weeks of growth. The plants grown on the polluted industrial soils provided a larger biomass and had lower mortality rates than those grown on the agricultural soil. Moreover, these plants accumulated more Zn and Cd (up to 17,516 and 375 mg kg(-1) DM, respectively) than plants grown on the agricultural soil (up to 7300 mg Zn kg(-1) and 83 mg Cd kg(-1) DM). The roots preferentially explored metal-contaminated areas. The exploration of polluted soil inclusions by the roots was associated with a higher extraction of metals. Zinc and Cd in the shoots of Thlaspi caerulescens were negatively correlated with Ca and Mg concentrations; however, the soil supply for these two elements was identical. This suggests that there is competition for the uptake of these elements and that Zn is preferentially accumulated. SN - 1522-6514 UR - https://www.unboundmedicine.com/medline/citation/15224775/Hyperaccumulation_of_metals_by_Thlaspi_caerulescens_as_affected_by_root_development_and_Cd_Zn/Ca_Mg_interactions_ DB - PRIME DP - Unbound Medicine ER -