Abstract
The effect of toxic metals on seed germination was studied in 23 cultivars of flax (Linum usitatissimum L.). Toxicity of cadmium, cobalt, copper, zinc, nickel, lead, chromium, and arsenic at five different concentrations (0.01–1 mM) was tested by standard ecotoxicity test. Root length was measured after 72 h of incubation. Elongation inhibition, EC50 value, slope, and NOEC values were calculated. Results were evaluated by principal component analysis, a multidimensional statistical method. The results showed that heavy-metal toxicity decreased in the following order: As3+ ≥ As5+ > Cu2+ > Cd2+ > Co2+ > Cr6+ > Ni2+ > Pb2+ > Cr3+ > Zn2+.
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Acknowledgments
This work was supported by projects MYES No. 2B08058, COST.FA0605OC09082, 1M06030, and MSM 2678424601. The authors thank Z. Hornychová for technical assistance.
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Soudek, P., Katrušáková, A., Sedláček, L. et al. Effect of Heavy Metals on Inhibition of Root Elongation in 23 Cultivars of Flax (Linum usitatissimum L.). Arch Environ Contam Toxicol 59, 194–203 (2010). https://doi.org/10.1007/s00244-010-9480-y
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DOI: https://doi.org/10.1007/s00244-010-9480-y