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Effects of PEG-simulated drought stress and selenite treatment on mineral nutrient homeostasis in wheat roots and shoots

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  • Feiyan Yu

    (Agricultural College, Henan University of Science and Technology, Luoyang, Henan, P.R. China
    Luoyang Key Laboratory of Plant Nutrition and Environmental Ecology, Luoyang, Henan, P.R. China
    Henan Jinxiwang Agricultural Science and Technology Company Limited, Luoyang, Henan, P.R. China)

  • Ying Wang

    (Agricultural College, Henan University of Science and Technology, Luoyang, Henan, P.R. China
    Luoyang Key Laboratory of Plant Nutrition and Environmental Ecology, Luoyang, Henan, P.R. China)

  • Xue Luo

    (Agricultural College, Henan University of Science and Technology, Luoyang, Henan, P.R. China
    Luoyang Key Laboratory of Plant Nutrition and Environmental Ecology, Luoyang, Henan, P.R. China)

  • Kaiwei Li

    (Agricultural College, Henan University of Science and Technology, Luoyang, Henan, P.R. China
    Luoyang Key Laboratory of Plant Nutrition and Environmental Ecology, Luoyang, Henan, P.R. China)

  • Jingwen Hou

    (Agricultural College, Henan University of Science and Technology, Luoyang, Henan, P.R. China
    Luoyang Key Laboratory of Plant Nutrition and Environmental Ecology, Luoyang, Henan, P.R. China)

  • Gaogao Dai

    (Agricultural College, Henan University of Science and Technology, Luoyang, Henan, P.R. China
    Luoyang Key Laboratory of Plant Nutrition and Environmental Ecology, Luoyang, Henan, P.R. China)

  • Huimin Yuan

    (Agricultural College, Henan University of Science and Technology, Luoyang, Henan, P.R. China
    Luoyang Key Laboratory of Plant Nutrition and Environmental Ecology, Luoyang, Henan, P.R. China)

  • Lianhe Zhang

    (Agricultural College, Henan University of Science and Technology, Luoyang, Henan, P.R. China
    Luoyang Key Laboratory of Plant Nutrition and Environmental Ecology, Luoyang, Henan, P.R. China
    Henan Jinxiwang Agricultural Science and Technology Company Limited, Luoyang, Henan, P.R. China)

Abstract

Drought stress severely impairs seed germination and early seedling establishment, and disrupts the uptake and distribution of essential mineral nutrients in plants. This study investigated the effects of polyethylene glycol (PEG)-simulated drought and Na2SeO3 application on the accumulation and redistribution of phosphorus (P), potassium (K), calcium (Ca), sulphur (S), magnesium (Mg), iron (Fe), zinc (Zn), copper (Cu), and manganese (Mn) in wheat roots and shoots. Under PEG-simulated drought, increasing PEG concentrations resulted in a progressive decline in nutrient concentrations in both roots and shoots, with significant reductions in K, Ca, S, Zn, and Mn in roots, and K, Ca, Mg, and Mn in shoots. However, Na2SeO3 application mitigated these adverse effects by enhancing nutrient redistribution during early seedling growth. Specifically, under 15% PEG-simulated drought stress, Na2SeO3 treatments significantly increased shoot K, Mg, Fe, and Cu concentrations, highlighting selenium's role in facilitating the translocation of these key elements. These results demonstrate that Na2SeO3 effectively mitigates drought-related nutrient imbalances and promotes ion remobilisation from germinating seeds to developing roots and shoots under water-deficient conditions.

Suggested Citation

  • Feiyan Yu & Ying Wang & Xue Luo & Kaiwei Li & Jingwen Hou & Gaogao Dai & Huimin Yuan & Lianhe Zhang, . "Effects of PEG-simulated drought stress and selenite treatment on mineral nutrient homeostasis in wheat roots and shoots," Plant, Soil and Environment, Czech Academy of Agricultural Sciences, vol. 0.
    • Handle: RePEc:caa:jnlpse:v:preprint:id:300-2025-pse
    DOI: 10.17221/300/2025-PSE
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