Cadmium Hyperaccumulation and Reproductive Traits in Natural Thlaspi caerulescens Populations - Archive ouverte HAL Access content directly
Journal Articles Plant Biology Year : 2006

Cadmium Hyperaccumulation and Reproductive Traits in Natural Thlaspi caerulescens Populations

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Nevena Basic
  • Function : Correspondent author
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Catherine Keller
Pascal P. Vittoz
  • Function : Author
Guillaume Besnard
Nicole Galland
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Abstract

During the last decade, the metal hyperaccumulating plants have attracted considerable attention because of their potential use in decontamination of heavy metal contaminated soils. However, in most species, little is known regarding the function, the ecological and the evolutionary significances of hyperaccumulation. In our study, we investigated the parameters influencing the Cd concentration in plants as well as the biological implications of Cd hyperaccumulation in nine natural populations of Thlaspi caerulescens. First, we showed that Cd concentration in the plant was positively correlated with plant Zn, Fe, and Cu concentrations. This suggested that the physiological and/or molecular mechanisms for uptake, transport and/or accumulation of these four heavy metals interact with each other. Second, we specified a measure of Cd hyperaccumulation capacity by populations and showed that T. caerulescens plants originating from populations with high Cd hyperaccumulation capacity had better growth, by developing more and bigger leaves, taller stems, and produced more fruits and heavier seeds. These results suggest a tolerance/disposal role of Cd hyperaccumulation in this species.
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Dates and versions

hal-01494197 , version 1 (06-04-2017)

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Nevena Basic, Catherine Keller, Pierre Fontanillas, Pascal P. Vittoz, Guillaume Besnard, et al.. Cadmium Hyperaccumulation and Reproductive Traits in Natural Thlaspi caerulescens Populations. Plant Biology, 2006, 8 (1), pp.64-72. ⟨10.1055/s-2005-872892⟩. ⟨hal-01494197⟩
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