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Research article - Peer-reviewed, 2011

Effect of foliar application of selenium on the content of selected amino acids in potato tubers (Solanum tuberosum L.)

Ježek, P.; Hlušek, J.; Lošák, T.; Jůzl, M.; Elzner, P.; Kráčmar, S.; Buňka, F.; Mårtensson, Anna


Selenium (Se) is an important element associated with the enhancement of antioxidant activity in organisms. Potato is very suitable for fertilisation with Se (biofortification). The experiment was performed to examine the effect of foliar application of Se as sodium selenite (200 or 400 g Se/ha) at the tuberisation stage on a spectrum of amino acids in tubers of varieties. The trends of amino acids were consistent in both years of the study. Application of Se increased the relative content of total essential (EAA) and non-essential (NEAA) amino acids relative to the controls (Karin: EAA 16.81-21.73% and NEAA 14.18-18.63%; Ditta: EAA 4.71-13.00% and NEAA 5.78-6.49%). The increase in the content of phenylalanine (Phe) was particularly significant (up to 48.9%) when also the contents of aspartic acid (Asp), glutamic acid (Glu), threonine (Thr), and tyrosine (Tyr) increased significantly compared with the controls. The results of changes in the content of isoleucine (Ile), leucine (Leu), lysine (Lys), methionine (Met), valine (Val), alanine (Ala), arginine (Arg), proline (Pro), cysteine (Cys), glycine (Gly), histidine (His), and serine (Ser) were also discussed. The highest dose of selenium is shown as a stress factor. Its toxic effects resulted in a change of amino acid contents.


functional foods; human health; glutathion-peroxidase

Published in

Plant, Soil and Environment
2011, volume: 57, number: 7, pages: 315-320

Authors' information

Ježek, P.
Mendel University in Brno
Hlušek, J.
Mendel University in Brno
Lošák, T.
Mendel University in Brno
Jůzl, M.
Mendel University in Brno
Elzner, P.
Mendel University in Brno
Kráčmar, S.
Tomas Bata University in Zlín (UTB)
Buňka, F.
Tomas Bata University in Zlín (UTB)
Swedish University of Agricultural Sciences, Department of Soil and Environment

UKÄ Subject classification

Agricultural Science

Publication Identifiers


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