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

P. Ježek, J. Hlušek, T. Lošák, M. Jůzl, P. Elzner, S. Kráčmar, F. Buňka and A. Martensson
Additional contact information
P. Ježek: Faculty of Agronomy, Mendel University in Brno, Brno, Czech Republic
J. Hlušek: Faculty of Agronomy, Mendel University in Brno, Brno, Czech Republic
T. Lošák: Faculty of Agronomy, Mendel University in Brno, Brno, Czech Republic
M. Jůzl: Faculty of Agronomy, Mendel University in Brno, Brno, Czech Republic
P. Elzner: Faculty of Agronomy, Mendel University in Brno, Brno, Czech Republic
S. Kráčmar: Faculty of Technology, Tomas Bata University in Zlín, Zlín, Czech Republic
F. Buňka: Faculty of Technology, Tomas Bata University in Zlín, Zlín, Czech Republic
A. Martensson: Department of Soil and Environment, Swedish University of Agricultural Sciences

Plant, Soil and Environment, 2011, vol. 57, issue 7, 315-320

Abstract: 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.

Keywords: functional foods; human health; glutathion-peroxidase (search for similar items in EconPapers)
Date: 2011
References: View references in EconPapers View complete reference list from CitEc
Citations:

Downloads: (external link)
http://pse.agriculturejournals.cz/doi/10.17221/57/2011-PSE.html (text/html)
http://pse.agriculturejournals.cz/doi/10.17221/57/2011-PSE.pdf (application/pdf)
free of charge

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:caa:jnlpse:v:57:y:2011:i:7:id:57-2011-pse

DOI: 10.17221/57/2011-PSE

Access Statistics for this article

Plant, Soil and Environment is currently edited by Mgr. Kateřina Součková

More articles in Plant, Soil and Environment from Czech Academy of Agricultural Sciences
Bibliographic data for series maintained by Ivo Andrle ().