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Effect of osmotic stress on compatible solutes content, membrane stability and water relationsin two maize cultivars

Author

Listed:
  • P. Valentovič

    (Institute of Botany, Slovak Academy of Sciences, Bratislava, Slovak Republic)

  • M. Luxová

    (Institute of Botany, Slovak Academy of Sciences, Bratislava, Slovak Republic)

  • L. Kolarovič

    (Institute of Botany, Slovak Academy of Sciences, Bratislava, Slovak Republic)

  • O. Gašparíková

    (Institute of Botany, Slovak Academy of Sciences, Bratislava, Slovak Republic)

Abstract

The effect of osmotic stress on oxidative injury, compatible solutes content and water relations was investigated in two maize cultivars (Zea mays L. cv. Ankora - drought-sensitive and cv. Nova - drought-tolerant). Relative water content in leaves of both cultivars decreased after drought treatment, leaf water loss of sensitive cv. Ankora was higher than that of cv. Nova. The 24 h water stress induced by 0.3M sorbitol (-1.4 MPa) resulted in a damage of cell membranes. Lipid peroxidation rose in all studied organs of cv. Ankora and electrolyte leakage in roots of cv. Ankora was much higher than in cv. Nova. Similarly, proline content increased significantly in all studied organs of cv. Ankora. Content of soluble sugars increased in all studied organs of both cultivars, but the mesocotyl of cv. Nova accumulated the highest amount of sugars. The electrolyte leakage was the highest in the roots of both cultivars. Osmotic stress had deep influence predominantly on the roots of both cultivars. It is apparent that stress impact on the drought-sensitive cv. Ankora was deeper than on the drought-tolerant cv. Nova.

Suggested Citation

  • P. Valentovič & M. Luxová & L. Kolarovič & O. Gašparíková, 2006. "Effect of osmotic stress on compatible solutes content, membrane stability and water relationsin two maize cultivars," Plant, Soil and Environment, Czech Academy of Agricultural Sciences, vol. 52(4), pages 186-191.
    • Handle: RePEc:caa:jnlpse:v:52:y:2006:i:4:id:3364-pse
    DOI: 10.17221/3364-PSE
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    Cited by:

    1. Shadi Sadat Mehrabi & Manijeh Sabokdast & Mohammad Reza Bihamta & Beáta Dedičová, 2024. "The Coupling Effects of PGPR Inoculation and Foliar Spraying of Strigolactone in Mitigating the Negative Effect of Salt Stress in Wheat Plants: Insights from Phytochemical, Growth, and Yield Attribute," Agriculture, MDPI, vol. 14(5), pages 1-35, May.

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