Effects of bisphenol A on mineral nutrition in soybean seedling roots
2015
Nie, Lijun | Wang, Lihong | Wang, Qingqing | Wang, Shengman | Zhou, Qing | Huang, Xiaohua
Bisphenol A (BPA) is a ubiquitous chemical in the environment and potentially harmful to plants. However, relevant studies of the effects of BPA on plants are relatively scarce. In the present work, the effects of BPA on the biomass (fresh wt and dry wt), absorptive function (activity and absorptive area), and mineral element levels in soybean (Glycine max L.) seedling roots treated with 1.5 mg L⁻¹, 3.0 mg L⁻¹, 6.0 mg L⁻¹, 12.0 mg L⁻¹, 24.0 mg L⁻¹, 48.0 mg L⁻¹, and 96.0 mg L⁻¹BPA were investigated. Treatment with 1.5 mg L⁻¹BPA increased the levels of nitrate and other mineral elements (P, K, Mg, Mn, Zn, and Mo) in the roots, whereas treatments with BPA at higher concentrations decreased the levels of these elements in the roots. All treatments with BPA caused increases in the levels of ammonium, Ca, Fe, and Cu in the roots. Moreover, treatment with 1.5 mg L⁻¹BPA increased the fresh weight, dry weight, activity, and absorptive area of the roots, whereas treatments with BPA at higher concentrations decreased these indices in a dose‐dependent manner. Furthermore, correlation analysis data showed that BPA affected the levels of mineral elements and absorptive function of soybean seedling roots, which may be the physiological basis of BPA action on plants. Environ Toxicol Chem 2015;34:133–140. © 2014 SETAC
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