Plant Soil Environ., 2006, 52(1):8-15 | DOI: 10.17221/3340-PSE

Effect of Se-metal pair combinations (Cd, Zn, Cu, Pb) on photosynthetic pigmentsproduction and Metal accumulation in Sinapis alba L. seedlings

A. Fargašová1, J. Pastierová1, K. Svetková2
1 Faculty of Natural Sciences, Comenius University in Bratislava, Slovak Republic
2 Faculty of Chemical and Food Technology, Slovak University of Technology in Bratislava, Slovak Republic

The priority of this study was to investigate how selenium influences toxicity of Cd, Zn, Cu and Pb when the metals appear in the hydroponic solution in pairs. As a model subject mustard seedlings (Sinapis alba L.) were used. Except phytotoxicity of individual metals and Se-metal combinations determined through photosynthetic pigments content (chlorophyll a, b, total carotenoids) also metal accumulation in the roots and shoots was determined by the AAS method. Se in all metal combinations reduced the unfavourable effect of other metals tested for chlorophylls content, however, for carotenoids primarily the opposite effect occurred. For metal accumulation in the roots and shoots it was confirmed that Se stimulated only Cd (about 24%) and slightly Cu (about 9%) accumulation in the roots, while in the shoots there was inhibited accumulation of all metals tested. The strongest inhibition was observed in Pb accumulation (84.9%). This fact indicates that Se generates some barriers for metal transfer from the roots to the underground plant parts. In contrast, Cu, Zn, Pb and Cd increased Se accumulation in the roots in the range of 4 (in combination with Cu) to 68% (in combination with Cd) and in the shoots in the range of 11 (in combination with Pb and Zn) to 44% (in combination with Cd). In the shoots only Cu inhibited Se accumulation (about 67%).

Keywords: Se-metal interactions; Se; Cd; Cu; Zn; Pb; photosynthetic pigments production; metal accumulation; Sinapis alba

Published: January 31, 2006  Show citation

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Fargašová A, Pastierová J, Svetková K. Effect of Se-metal pair combinations (Cd, Zn, Cu, Pb) on photosynthetic pigmentsproduction and Metal accumulation in Sinapis alba L. seedlings. Plant Soil Environ. 2006;52(1):8-15. doi: 10.17221/3340-PSE.
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