Uptake of (14)C-labeled fluoranthene ([(14)C]FLT) via both roots and leaves of Pisum sativum seedlings and distribution of [(14) C] in plants by both acropetal and basipetal transport was evaluated. The highest [(14)C] level was found in the root base (≈270 × 10(4) dpm/g dry wt) and the lowest level in the stem apex (<2 × 10(4) dpm/g dry wt) after just 2 h of root exposure. For foliar uptake, the highest level of [(14)C] was found in the stem and root apex (both ≈2 × 10(4) dpm/g dry wt) (except for treated leaves), while the lowest level was found in the root base (<0.6 × 10(4) dpm/g dry wt).

• MeSH
• biologický transport MeSH
• fluoreny analýza   metabolismus   MeSH
• hrách setý metabolismus   MeSH
• kořeny rostlin metabolismus   MeSH
• látky znečišťující životní prostředí analýza   metabolismus   MeSH
• listy rostlin metabolismus   MeSH
• monitorování životního prostředí MeSH
• radioizotopy uhlíku analýza   metabolismus   MeSH
• stonky rostlin metabolismus   MeSH
• Publikační typ
• časopisecké články MeSH
• práce podpořená grantem MeSH

A model small-scale field experiment was set up to investigate selenium (Se) uptake by four different varieties of broccoli plants, as well as the effect of Se foliar application on the uptake of essential elements for plants calcium (Ca), copper (Cu), iron (Fe), potassium (K), magnesium (Mg), manganese (Mn), phosphorus (P), sulfur (S), and zinc (Zn). Foliar application of sodium selenate (Na2SeO4) was carried out at two rates (25 and 50 g Se/ha), and an untreated control variant was included. Analyses of individual parts of broccoli were performed, whereby it was found that Se in the plant accumulates mainly in the flower heads and slightly less in the leaves, stems, and roots, regardless of the Se rate and broccoli variety. In most cases, there was a statistically significant increase of Se content in all parts of the plant, while there was no confirmed systematic influence of the addition of Se on the changing intake of other monitored elements. Selenization of broccoli leads to an effective increase in the Se content at a rate of 25 g/ha, whereas the higher rate did not result in a substantial increase of Se content compared to the lower rate in all varieties. Therefore, the rate of 25 g/ha can be recommended as effective to produce broccoli with an increased Se content suitable for consumption. Moreover, Se application resulted in an adequate increase of the main organic compounds of Se, such as selenocystine (SeCys2), selenomethionine (SeMet), and Se-methylselenocysteine (Se-MeSeCys).

• MeSH
• biologický transport MeSH
• Brassica účinky léků   metabolismus   MeSH
• cystin analogy a deriváty   izolace a purifikace   metabolismus   MeSH
• kationty dvojmocné metabolismus   MeSH
• kationty jednomocné metabolismus   MeSH
• kořeny rostlin účinky léků   metabolismus   MeSH
• květy účinky léků   metabolismus   MeSH
• listy rostlin účinky léků   metabolismus   MeSH
• organoselenové sloučeniny izolace a purifikace   metabolismus   MeSH
• selenocystein analogy a deriváty   izolace a purifikace   metabolismus   MeSH
• selenomethionin izolace a purifikace   metabolismus   MeSH
• sloučeniny selenu izolace a purifikace   metabolismus   farmakologie   MeSH
• spektrofotometrie atomová MeSH
• stonky rostlin účinky léků   metabolismus   MeSH
• Publikační typ
• časopisecké články MeSH
• práce podpořená grantem MeSH

This study aims to summarize results on potential phytomanagement of two metal(loid)-polluted military soils using Miscanthus x giganteus. Such an option was tested during 2-year pot experiments with soils taken from former military sites in Sliač, Slovakia and Kamenetz-Podilsky, Ukraine. The following elements were considered: As, Cu, Fe, Mn, Pb, Sr, Ti, Zn and Zr. M. x giganteus showed good growth at both military soils with slightly higher maximum shoot lengths in the second year of vegetation. Based on Principal Component Analysis similarities of metal(loid) uptake by roots, stems and leaves were summarized. Major part of the elements remained in M. x giganteus roots and rather limited amounts moved to the aerial parts. Levels taken up decreased in the second vegetation year. Dynamics of foliar metal(loid) concentrations divided the elements in two groups: essential elements required for metabolism (Fe, Mn, Cu, and Zn) and non-essential elements without any known metabolic need (As, Sr, Ti, and Zr). Fe, Mn, Ti and Sr showed similar S-shaped uptake curve in terms of foliar concentrations (likely due to dilution in growing biomass), while Cu exhibited a clear peak mid-season. Behavior of Zn was in between. Foliar Zr and As concentrations were below detection limit. The results illustrated a good potential of M. x giganteus for safely growing on metal-polluted soils taken from both military localities.

• MeSH
• biodegradace MeSH
• biomasa MeSH
• biopaliva * MeSH
• kořeny rostlin metabolismus   MeSH
• kovy analýza   MeSH
• látky znečišťující půdu analýza   MeSH
• látky znečišťující životní prostředí analýza   MeSH
• lipnicovité metabolismus   MeSH
• půda MeSH
• regenerace a remediace životního prostředí metody   MeSH
• Publikační typ
• časopisecké články MeSH
• Geografické názvy
• Slovenská republika MeSH