Abstract: The aim of this study was to investigate the effects of selenium (Se) on the growth, accumulation and possible mechanisms of Se transport in certain parts (roots, leaves, stamp and apex) of nettle (Urtica dioica L.) plants. Se was supplemented by one-shot and two repeated doses to the soil (2.0 and 4.0 mg Se per kg of substrate). Selenium content in roots increased linearly with dose and was significantly higher compared to other plant parts of interest. However, growth of the above-ground parts of plant as well as roots was slightly inhibited with increasing selenium concentration in comparison to the untreated plants. The content of phytochelatin2, a low molecular mass peptide containing a sulfhydryl group, correlated well with the Se content. This suggests a possible stimulation of synthesis of this plant peptide by Se.
Keywords: graphite furnace atomic absorption spectrometry; high performance liquid chromatography with electrochemical detection; plant tissues; heavy metal; plant; nettle; selenium
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Krystofova, O.; Adam, V.; Babula, P.; Zehnalek, J.; Beklova, M.; Havel, L.; Kizek, R. Effects of Various Doses of Selenite on Stinging Nettle (Urtica dioica L.). Int. J. Environ. Res. Public Health 2010, 7, 3804-3815.
Krystofova O, Adam V, Babula P, Zehnalek J, Beklova M, Havel L, Kizek R. Effects of Various Doses of Selenite on Stinging Nettle (Urtica dioica L.). International Journal of Environmental Research and Public Health. 2010; 7(10):3804-3815.
Krystofova, Olga; Adam, Vojtech; Babula, Petr; Zehnalek, Josef; Beklova, Miroslava; Havel, Ladislav; Kizek, Rene. 2010. "Effects of Various Doses of Selenite on Stinging Nettle (Urtica dioica L.)." Int. J. Environ. Res. Public Health 7, no. 10: 3804-3815.