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Exogenous salicylic acid and hydrogen peroxide attenuate drought stress in rice

Author

Listed:
  • Abdullah Al Mamun Sohag

    (Department of Biochemistry and Molecular Biology, Faculty of Agriculture, Bangladesh Agricultural University, Mymensingh, Bangladesh)

  • Md. Tahjib-Ul-Arif

    (Department of Biochemistry and Molecular Biology, Faculty of Agriculture, Bangladesh Agricultural University, Mymensingh, Bangladesh)

  • Marián Brestič

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

  • Sonya Afrin

    (Department of Soil Science, Bangladesh Agricultural University, Mymensingh, Bangladesh)

  • Md. Arif Sakil

    (Department of Biochemistry and Molecular Biology, Faculty of Agriculture, Bangladesh Agricultural University, Mymensingh, Bangladesh)

  • Md. Tahmeed Hossain

    (Department of Biochemistry and Molecular Biology, Faculty of Agriculture, Bangladesh Agricultural University, Mymensingh, Bangladesh)

  • Mohammad Anowar Hossain

    (Department of Biochemistry and Molecular Biology, Faculty of Agriculture, Bangladesh Agricultural University, Mymensingh, Bangladesh)

  • Md. Afzal Hossain

    (Department of Biochemistry and Molecular Biology, Faculty of Agriculture, Bangladesh Agricultural University, Mymensingh, Bangladesh)

Abstract

Hydrogen peroxide (H2O2) and salicylic acid (SA) exhibit protective effects against a wide array of stresses. In this study, we investigated the relative efficacy of exogenous H2O2 and SA in conferring drought tolerance in rice (Oryza sativa L.). The experiment was repeated two times, firstly in a hydroponic system and secondly in soil. The results revealed that drought hampered germination indices, seedling growth, photosynthetic pigments, and water content, whereas increased proline content. It also triggered higher H2O2 production and consequently elevated lipid peroxidation, which is a particular indication of oxidative damage. However, exogenous H2O2 or SA treatment effectively alleviated oxidative damage in rice seedlings both in hydroponic and soil systems via upregulating antioxidant enzymes. Nevertheless, regulation of proline level and augmentation of plant-water status were crucial to confer drought tolerance. Exogenous H2O2 or SA also protected photosynthetic pigments from oxidative damage that might help to maintain normal photosynthesis under drought. Besides, 5 mmol/L H2O2 and 0.5 or 1 mmol/L SA showed similar effectiveness on mitigating drought stress. Finally, our findings suggest that exogenous H2O2 or SA could evenly be effectual in the amending growth of rice seedlings under drought conditions.

Suggested Citation

  • Abdullah Al Mamun Sohag & Md. Tahjib-Ul-Arif & Marián Brestič & Sonya Afrin & Md. Arif Sakil & Md. Tahmeed Hossain & Mohammad Anowar Hossain & Md. Afzal Hossain, 2020. "Exogenous salicylic acid and hydrogen peroxide attenuate drought stress in rice," Plant, Soil and Environment, Czech Academy of Agricultural Sciences, vol. 66(1), pages 7-13.
    • Handle: RePEc:caa:jnlpse:v:66:y:2020:i:1:id:472-2019-pse
    DOI: 10.17221/472/2019-PSE
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    Citations

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    Cited by:

    1. Weeraphorn Jira-anunkul & Wattana Pattanagul, 2021. "Effects of hydrogen peroxide application on agronomic traits of rice (Oryza sativa L.) under drought stress," Plant, Soil and Environment, Czech Academy of Agricultural Sciences, vol. 67(4), pages 221-229.
    2. Abeer Hamdy Elhakem, 2020. "Salicylic acid ameliorates salinity tolerance in maize by regulation of phytohormones and osmolytes," Plant, Soil and Environment, Czech Academy of Agricultural Sciences, vol. 66(10), pages 533-541.

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