Plant Soil Environ., 2025, 71(9):614-620 | DOI: 10.17221/300/2025-PSE

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

Feiyan Yu1,2,3, Ying Wang1,2, Xue Luo1,2, Kaiwei Li1,2, Jingwen Hou1,2, Gaogao Dai1,2, Huimin Yuan1,2, Lianhe Zhang1,2,3
1 Agricultural College, Henan University of Science and Technology, Luoyang, Henan, P.R. China
2 Luoyang Key Laboratory of Plant Nutrition and Environmental Ecology, Luoyang, Henan, P.R. China
3 Henan Jinxiwang Agricultural Science and Technology Company Limited, Luoyang, Henan, P.R. China

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.

Keywords: osmotic stress; selenium supplementation; nutrient redistribution; abiotic stress mitigation; cereal crops

Received: July 11, 2025; Revised: August 30, 2025; Accepted: September 2, 2025; Prepublished online: September 16, 2025; Published: September 26, 2025  Show citation

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Yu F, Wang Y, Luo X, Li K, Hou J, Dai G, et al.. Effects of PEG-simulated drought stress and selenite treatment on mineral nutrient homeostasis in wheat roots and shoots. Plant Soil Environ. 2025;71(9):614-620. doi: 10.17221/300/2025-PSE.
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