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

Author

Listed:
  • 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)

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.

Suggested Citation

  • P. Ježek & J. Hlušek & T. Lošák & M. Jůzl & P. Elzner & S. Kráčmar & F. Buňka & A. Martensson, 2011. "Effect of foliar application of selenium on the content of selected amino acids in potato tubers (Solanum tuberosum L.)," Plant, Soil and Environment, Czech Academy of Agricultural Sciences, vol. 57(7), pages 315-320.
    • Handle: RePEc:caa:jnlpse:v:57:y:2011:i:7:id:57-2011-pse
    DOI: 10.17221/57/2011-PSE
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    References listed on IDEAS

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    1. L. Ducsay & O. Ložek & L. Varga, 2009. "The influence of selenium soil application on its content in spring wheat," Plant, Soil and Environment, Czech Academy of Agricultural Sciences, vol. 55(2), pages 80-84.
    2. M. Pavlík & D. Pavlíková & J. Balík & M. Neuberg, 2010. "The contents of amino acids and sterols in maize plants growing under different nitrogen conditions," Plant, Soil and Environment, Czech Academy of Agricultural Sciences, vol. 56(3), pages 125-132.
    3. S.J. Ramos & V. Faquin & L.R.G. Guilherme & E.M. Castro & F.W. Ávila & G.S. Carvalho & C.E.A. Bastos & C. Oliveira, 2010. "Selenium biofortification and antioxidant activity in lettuce plants fed with selenate and selenite," Plant, Soil and Environment, Czech Academy of Agricultural Sciences, vol. 56(12), pages 584-588.
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