Cadmium accumulation in populations of Thlaspi caerulescens and Thlaspi goesingense

A - Papers appearing in refereed journals

Lombi, E., Zhao, F-J., Dunham, S. J. and McGrath, S. P. 2000. Cadmium accumulation in populations of Thlaspi caerulescens and Thlaspi goesingense. New Phytologist. 145 (1), pp. 11-20. https://doi.org/10.1046/j.1469-8137.2000.00560.x

AuthorsLombi, E., Zhao, F-J., Dunham, S. J. and McGrath, S. P.
Abstract

The capacity to accumulate cadmium (Cd) and zinc (Zn) was compared in Thlaspi goesingense and four populations of Thlaspi caerulescens. Two populations of T. caerulescens were grown in hydroponics at five concentrations of Cd. In addition, plants were grown in pots containing compost in which three different concentrations of Cd and two concentrations of Zn were added. A field trial was conducted to compare Zn and Cd uptake by three populations of T. caerulescens on nine selected plots of the Woburn Market Garden Experiment (UK) which had been contaminated to different degrees with heavy metals owing to past applications of sewage sludge. Results show that the four populations of T. caerulescens had the same ability to hyperaccumulate Zn but were significantly different in terms of Cd accumulation. Two populations of T. caerulescens from Southern France accumulated much more Cd than the populations from Prayon (Belgium) and Whitesike (UK). Generally, uptake of Cd was not decreased by increased concentrations of Zn in the substrate. These results indicate that the mechanisms of Cd and Zn hyperaccumulation are not identical in this species. This is the first report of hyperaccumulation of Cd by T. goesingense, but the growth of this species was markedly reduced by the large concentrations of Zn in the substrate. Future work should focus on the differences between Cd and Zn uptake in hyperaccumulator plants at the species and population level.

KeywordsPhytoremediation; Thlaspi caerulescens; Populations ; Cadmium; Zinc; Hyperaccumulation; Phytoextraction; Thlaspi goesingense
Year of Publication2000
JournalNew Phytologist
Journal citation145 (1), pp. 11-20
Digital Object Identifier (DOI)https://doi.org/10.1046/j.1469-8137.2000.00560.x
Open accessPublished as bronze (free) open access
FunderBiotechnology and Biological Sciences Research Council
Funder project or code319
443
Project: 031904
Project: 031779
Project: 034174
Output statusPublished
Publication dates
Online25 Dec 2001
PublisherWiley
ISSN0028-646X

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