Aleksandra Golob (Author), Katarina Vogel-Mikuš (Author), Nina Brudar (Author), Mateja Germ (Author)

Abstract

The absorption of selenium (Se) from water by Lemna minor L. and the influence of different concentrations and forms of Se on its biochemical and morphological characteristics were studied. Plants were exposed to various concentrations of Se: 1 mg Se L$^{−1}$, 2 mg Se L$^{−1}$ and 5 mg Se L$^{−1}$ in sodium selenite and sodium selenate solutions and in a combination of selenite (2 mg Se L$^{−1}$) and selenate (2 mg Se L$^{−1}$). When the Se was added in the form of selenate, plants accumulated higher amounts of Se compared to plants exposed to selenite. Comparisons of the combined addition of selenite and selenate (2 + 2 mg Se L$^{−1}$) with their individual applications (2 and 5 mg Se L$^{−1}$) showed that for the combination, the L. minor fronds accumulated more Se than in selenite alone. Plants exposed to any of the concentrations of sodium selenate or sodium selenite, or the combination of selenite and selenate, showed inferior physiological performances, and lower concentrations of photosynthetic pigments, compared to control plants. Consequently, growth was also suppressed under the stress conditions caused by higher concentrations of Se in any form. The efficient absorption of Se from the water by L. minor indicates the potential use of this species in phytoremediation processes for waters polluted with Se.

Keywords

Lemna minor L.;selenit;selenat;biokemijske lastnosti;akumulacija selena;fitoremediacija;

Data

Language: English
Year of publishing:
Typology: 1.01 - Original Scientific Article
Organization: UL BF - Biotechnical Faculty
UDC: 57
COBISS: 88446723 Link will open in a new window
ISSN: 2071-1050
Views: 67
Downloads: 35
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Other data

Secondary language: Slovenian
Secondary keywords: Lemna minor L.;selenit;selenat;biokemijske lastnosti;akumulacija selena;fitoremediacija;
Type (COBISS): Article
Pages: str. 1-18
Issue: ǂVol. ǂ13
Chronology: 2021
DOI: 10.3390/su132313423
ID: 15327513