title: Effects of various doses of selenite on stinging nettle (Urtica dioica L.).
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.
authors.affiliation: Department of Chemistry and Biochemistry, Mendel University in Brno, Zemedelska 1, CZ-613 00 Brno, Czech Republic. olga.krystofova@seznam.cz
authors.forename: Olga
authors.initials: O
authors.lastname: Krystofova
authors.forename: Vojtech
authors.initials: V
authors.lastname: Adam
authors.forename: Petr
authors.initials: P
authors.lastname: Babula
authors.forename: Josef
authors.initials: J
authors.lastname: Zehnalek
authors.forename: Miroslava
authors.initials: M
authors.lastname: Beklova
authors.forename: Ladislav
authors.initials: L
authors.lastname: Havel
authors.forename: Rene
authors.initials: R
authors.lastname: Kizek
mesh_terms: D002851:Chromatography, High Pressure Liquid; D004305:Dose-Response Relationship, Drug; D018038:Sodium Selenite / Q000494:pharmacology*; D013054:Spectrophotometry, Atomic; D026982:Urtica dioica / Q000187:drug effects*
chemical_list: D018038:Sodium Selenite