Čeština
EnglishEffect of heavy metals on inhibition of root elongation in twenty three cultivars of flax (Linum usitatissimum L.).
Soudek P., Katrušáková A., Sedláček L., Petrová Š., Kočí V., Maršík P., Griga M., Vaněk T.
ARCHIVES OF ENVIRONMENTAL CONTAMINATION AND TOXICOLOGY 59[2]: 194-203, 2010
Keywords: EC50, germination, NOEC, toxicity
Abstract: The effect of toxic metals on seed germination was followed in 23 cultivars of flax (Linum usitatissimum L.). Toxicity of Cd, Co, Cu, Zn, Ni, Pb, Cr and As, at five different concentrations (in the range 0.01 - 1 mM) was tested by standard ecotoxicity test. The root length was measured after 72-h incubation. The elongation inhibition, EC50 value, slope and NOEC values were calculated. Results were evaluated by multidimensional statistical method PCA (principal analysis of main components). The results showed that heavy metal toxicity decreased in the order: As3+ As5+ > Cu2+ > Cd2+ > Co2+ > Cr6+ > Ni2+ > Pb2+ > Cr3+ > Zn2+.
DOI:
Fulltext: contact IEB authors
IEB authors: Petr Maršík, Šárka Petrová, Petr Soudek, Tomáš Vaněk
ARCHIVES OF ENVIRONMENTAL CONTAMINATION AND TOXICOLOGY 59[2]: 194-203, 2010
Keywords: EC50, germination, NOEC, toxicity
Abstract: The effect of toxic metals on seed germination was followed in 23 cultivars of flax (Linum usitatissimum L.). Toxicity of Cd, Co, Cu, Zn, Ni, Pb, Cr and As, at five different concentrations (in the range 0.01 - 1 mM) was tested by standard ecotoxicity test. The root length was measured after 72-h incubation. The elongation inhibition, EC50 value, slope and NOEC values were calculated. Results were evaluated by multidimensional statistical method PCA (principal analysis of main components). The results showed that heavy metal toxicity decreased in the order: As3+ As5+ > Cu2+ > Cd2+ > Co2+ > Cr6+ > Ni2+ > Pb2+ > Cr3+ > Zn2+.
DOI:
Fulltext: contact IEB authors
IEB authors: Petr Maršík, Šárka Petrová, Petr Soudek, Tomáš Vaněk