Effect of selenium on macro- and microelement distribution and physiological parameters of rape and wheat seedlings exposed to cadmium stress
By M. Zembala, M. Filek, S. Walas, H. Mrowiec, A. Kornaś, Z. Miszalski, H. Hartikainen. Plant and Soil, 2010
170 citations recorded by the source corpus.
Cadmium (Cd) exerts a detrimental effect on the metabolism of plants, whereas selenium (Se) may protect them against various stressors through its antioxidative activity. In this in vitro study we investigated the impact of Se (2 µM Na2SeO4) on the growth, nutrient (P, S, K, Ca, Mg, B, Mn, Fe and Zn) concentrations and cell integrity of rape (Brassica napus oleifera) and two wheat (Triticum aestivum) genotypes subjected to Cd stress (600 µM CdCl2). Rape accumulated both Cd and Se more than did wheat. In all plants, Cd markedly reduced the biomass, enhanced lipid peroxidation and diminished plasmalemma fluidity. A drop in the K uptake and the reduced plasmalemma permeability diminished the K efflux from the leaf cells. In contrast, Cd elevated S concomitantly with Zn, indicating an activity of detoxifying SH groups and SOD isoenzymes. When added alone, Se promoted the growth of all plants, it enhanced the accumulation of S, but the impact on other nutrients remained minor. In Cd-stressed plants, Se tended to counterbalance the Cd-induced changes in nutrients, it also reduced the lipid peroxidation and exerted positive effects on the cell membrane stability. The Cd stress and the protective role of Se were most evident in rape. The Finnish wheat genotype was less tolerant to Cd than the Polish one.
Subfields: Nutrition and Dietetics, Plant Science, Pollution
View Paper: https://www.semanticscholar.org/paper/eb34a50ef0cd229ca3cb217510825f8b0854cab1
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Citations in the corpus
- An Overview of Selenium Uptake, Metabolism, and Toxicity in Plants (2017, background): “…metal toxicity, which could be attributed to Se mediated detoxification of heavy metals due to less uptake, translocation or formation of non toxic Se-metal complexes (Belzile et al., 2006; Filek et al., 2008; Pedrero et al., 2008; Sun G.-X. et al., 2010; Zembala et al., 2010; Feng et al., 2011).”
- Cellular Mechanisms in Higher Plants Governing Tolerance to Cadmium Toxicity (2014, background): “Addition of Se to growth medium can effectively reduce the adverse effects of Cd on growth by decreasing the accumulation of ROS and malondialdehyde (MDA), while restoring or enhancing the concentration of enzymatic and non-enzymatic antioxidants, phycobiliproteins and PCs (Zembala et al., 2010; Kum”
- The roles of selenium in protecting plants against abiotic stresses (2013, background): “Optimal Se supplementation has been shown to inhibit the accumulation of malondialdehyde (MDA, an indicator of the extent of lipid peroxidation) in many stressed plants, such as Cd-stressed rape seedlings (Zembala et al., 2010), Sb-stressed paddy rice (Feng et al.”