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Effect of drought and waterlogging on hydrophilic antioxidants and their activity in potato tubers

Author

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  • Matyáš Orsák

    (Department of Chemistry, Faculty of Agrobiology, Food and Natural Resources, University of Life Sciences Prague, Prague, Czech Republic)

  • Zora Kotíková

    (Department of Chemistry, Faculty of Agrobiology, Food and Natural Resources, University of Life Sciences Prague, Prague, Czech Republic)

  • František Hnilička

    (Department of Botany and Plant Physiology, Faculty of Agrobiology, Food and Natural Resources, University of Life Sciences Prague, Prague, Czech Republic)

  • Jaromír Lachman

    (Department of Chemistry, Faculty of Agrobiology, Food and Natural Resources, University of Life Sciences Prague, Prague, Czech Republic)

  • Radovan Stanovič

    (Department of Chemistry, Faculty of Biotechnology and Food Sciences, Slovak University of Agriculture in Nitra, Nitra, Slovak Republic)

Abstract

Maintaining a strong antioxidant system is essential for preventing drought or waterlogging stresses damage in potato tubers. In the two-year pot experiment, the effect of long-term drought and waterlogging stresses on the content of phenolic acids, ascorbic acid, and antioxidant activity in potato tubers and relative water content of four cultivars was evaluated. Drought stress significantly (P < 0.05) decreased relative water content (RWC) in the leaves of all genotypes. The evaluation of the relationship between phenolic acid content and the level of plant stress expressed as RWC showed a negative correlation between RWC and most phenolic acids, but these correlations were not statistically significant, with the exception of l-tyrosine. A significant positive correlation was found between total and individual phenolic acid content and antioxidant activity (R = 0.657), confirming the main responsibility for the increase of antioxidant activity. The average tuber yield and weight as well as their average number correlated negatively with total phenolic acids. Drought stress decreased l-ascorbic acid content by reduction of biosynthesis, and its content was positively correlated with decreased RWC, tubers yield, weight, and number. The increase of phenolic antioxidants in potato under stress conditions can be a distinctive marker of cultivar resistance against abiotic stresses.

Suggested Citation

  • Matyáš Orsák & Zora Kotíková & František Hnilička & Jaromír Lachman & Radovan Stanovič, 2020. "Effect of drought and waterlogging on hydrophilic antioxidants and their activity in potato tubers," Plant, Soil and Environment, Czech Academy of Agricultural Sciences, vol. 66(3), pages 128-134.
    • Handle: RePEc:caa:jnlpse:v:66:y:2020:i:3:id:520-2019-pse
    DOI: 10.17221/520/2019-PSE
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    References listed on IDEAS

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    1. Christina B. Wegener & Gisela Jansen, 2013. "Antioxidants in Different Potato Genotypes: Effect of Drought and Wounding Stress," Agriculture, MDPI, vol. 3(1), pages 1-16, February.
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    Cited by:

    1. Senad Murtić & Milena Đurić & Jasmin Fazlić & Fikreta Behmen & Sanel Haseljić & Amina Šerbo & Haris Berbić, 2023. "Organic versus conventional 'Willamette' raspberry: yield, bioactive compounds and antioxidant properties," Horticultural Science, Czech Academy of Agricultural Sciences, vol. 50(4), pages 275-282.
    2. Matyáš Orsák & Zora Kotíková & František Hnilička & Jaromír Lachman, 2021. "Effect of drought and waterlogging on saccharides and amino acids content in potato tubers," Plant, Soil and Environment, Czech Academy of Agricultural Sciences, vol. 67(7), pages 408-416.
    3. Matyáš Orsák & Zora Kotíková & František Hnilička & Jaromír Lachman, 2023. "Effect of long-term drought and waterlogging stress on photosynthetic pigments in potato," Plant, Soil and Environment, Czech Academy of Agricultural Sciences, vol. 69(4), pages 152-160.

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