Ecotoxicity Of Rare Earth Elements

0502812 - ÚEB 2019 GR eng C - Conference Paper (international conference)
Soudek, Petr - Petrová, Šárka - Landa Lekuberria, Joanes - Tomášková, I. - Vaněk, Tomáš
Ecotoxicity Of Rare Earth Elements.
Proceedings of 15th International Conference on Environmental Science and Technology. Lesbos: University of the Aegean, 2017 - (Lekkas, D.), č. článku 01378. ISBN 978-960-7475-53-4. ISSN 1106-5516.
[International Conference on Environmental Science and Technology /15./. Rhodes (GR), 31.08.2017-02.09.2017]
R&D Projects: GA MŠMT(CZ) LTC17046
Institutional support: RVO:61389030
Keywords : heavy metals * accumulation * stress
OECD category: Environmental biotechnology
https://cest2017.gnest.org/sites/default/files/presentation_file_list/cest2017_01378_poster_paper.pdf

The effect of REE on seed germination was followed in white mustard (Sinapis alba L.). The effect of REE on viability of suspension culture of Arabidopsis thaliana was also tested. Toxicity of Sc, Y, La, Ce, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb and Lu, at five different concentrations (in the range 0.05 - 5 mM) was tested by standard ecotoxicity test. The root length of white mustard was measured after 72-h incubation. The elongation inhibition, EC50 value and slope values were calculated. The exposure of suspension culture of Arabidopsis thaliana took 96 h under dark condition. The tolerance of suspension cultures to REE was assessed using the reduction of 2,3,5-triphenyltetrazo-lium chloride (TTC). The results showed that REE toxicity decreased in the order: Lu > Er > Yb > Sc > Tm > Y > Ce > Ho > La >Nd > Pr > Dy > Gd > Tb > Eu > Sm.
Permanent Link: http://hdl.handle.net/11104/0294699