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Selenium biofortification and antioxidant activity in lettuce plants fed with selenate and selenite

Author

Listed:
  • S.J. Ramos

    (Robert W. Holley Center for Agriculture and Health, Cornell University, Ithaca, New York, USA
    Soil Science Department, Federal University of Lavras, Lavras, Brazil)

  • V. Faquin

    (Soil Science Department, Federal University of Lavras, Lavras, Brazil)

  • L.R.G. Guilherme

    (Soil Science Department, Federal University of Lavras, Lavras, Brazil)

  • E.M. Castro

    (Biology Department, Federal University of Lavras, Lavras, Brazil)

  • F.W. Ávila

    (Soil Science Department, Federal University of Lavras, Lavras, Brazil)

  • G.S. Carvalho

    (Soil Science Department, Federal University of Lavras, Lavras, Brazil)

  • C.E.A. Bastos

    (Soil Science Department, Federal University of Lavras, Lavras, Brazil)

  • C. Oliveira

    (Biology Department, Federal University of Lavras, Lavras, Brazil)

Abstract

Selenium is an important element associated with enhancement of antioxidant activity in plants, microorganisms, animals, and humans. In Brazil, the information on Se in agricultural crops is lacking, though there are indications that low levels of Se are consumed by the population. The experiment was conducted under greenhouse conditions with pots containing 3 l of nutritive solution in a completely randomized factorial design, with seven Se concentrations (0, 2, 4, 8, 16, 32, and 64 µmol/l) and two forms of Se (sodium selenate - Na2SeO4 and sodium selenite - Na2SeO3), with six replicates. The application of Se as selenate at low concentrations is more appropriate for lettuce biofortification because it favors shoot biomass growth and Se levels in the shoot biomass. Selenium in both forms had two effects on lettuce plant metabolism: at low doses it acted as an antioxidant and enhanced plant growth, whereas at higher levels it reduced yield.

Suggested Citation

  • 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.
    • Handle: RePEc:caa:jnlpse:v:56:y:2010:i:12:id:113-2010-pse
    DOI: 10.17221/113/2010-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.
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    Cited by:

    1. 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.
    2. Ying Wang & Qing Zhu & Zhiwei Wang & Junpei Wang & Zhen Wang & Feiyan Yu & Lianhe Zhang, 2024. "Effects of foliar application of amino acid-chelated selenite on photosynthetic characteristics of peanut (Arachis hypogaea L.) leaves at the podding stage," Plant, Soil and Environment, Czech Academy of Agricultural Sciences, vol. 70(1), pages 17-25.
    3. S.J. Ramos & F.W. Ávila & P.F. Boldrin & F.J. Pereira & E.M. Castro & V. Faquin & A.R. Reis & L.R.G. Guilherme, 2012. "Response of brachiaria grass to selenium forms applied in a tropical soil," Plant, Soil and Environment, Czech Academy of Agricultural Sciences, vol. 58(11), pages 521-527.
    4. repec:caa:jnlpse:v:preprint:id:406-2023-pse is not listed on IDEAS

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    1. 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.

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