2014
DOI: 10.3724/sp.j.1259.2014.00262
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Alleviation of Cd Toxicity in Arabidopsis thaliana Seedlings by Exogenous Ca 2+ or K +

Abstract: We investigated the effect of exogenous Ca or K on the growth and physiological parameters of Arabidopsis thaliana seedlings under different levels of Cd stress (0, 20, 40, 60 and 80 μmol•L -1 ). The optimal alleviation concentration for Ca 2+ was 10 mmol•L -1 under all levels of Cd stress in terms of root growth and biomass of seedlings. The optimal alleviation concentration for K + was 10 mmol•L -1 under low Cd stress (20 and 40 μmol•L -1 ) and 20 mmol•L -1 under high Cd stress (60 and 80 μmol•L -1 ). Unde… Show more

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