Abstract Irrigation of cultivated plants can be a source of toxic lithium to plants. The data on the effect of lithium uptake on plants are scant, that is why a research was undertaken with the aim to determine maize ability to bioaccumulate lithium. The research was carried out under hydroponic conditions. The experimental design comprised 10 concentrations in solution differing with lithium concentrations in the aqueous solution (ranging from 0.0 to 256.0 mg Li ∙ dm-3 of the nutrient solution). The parameters based on which lithium bioretention by maize was determined were: the yield, lithium concentration in various plant parts, uptake and utilization of this element, tolerance index (TI) and translocation factor (TF), metal concentrations in the above-ground parts index (CI) and bioaccumulation factor (BAF). Depression in yielding of maize occurred only at the highest concentrations of lithium. Lithium concentration was the highest in the roots, lower in the stems and leaves, and the lowest in the inflorescences. The values of tolerance index and EC50 indicated that roots were the most resistant organs to lithium toxicity. The values of translocation factor were indicative of intensive export of lithium from the roots mostly to the stems. The higher uptake of lithium by the above-ground parts than by the roots, which primarily results from the higher yield of these parts of the plants, supports the idea of using maize for lithium phytoremediation.

中文翻译：

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水培条件下玉米对锂的生物滞留量的测定

摘要 栽培植物的灌溉可能是植物有毒锂的来源。关于锂吸收对植物的影响的数据很少，因此进行了一项旨在确定玉米生物积累锂能力的研究。该研究是在水培条件下进行的。实验设计包括溶液中的 10 种浓度，与水溶液中的锂浓度不同（营养液的 0.0 至 256.0 mg Li ∙ dm-3）。确定玉米对锂生物保留的依据是：产量、植物各部位锂浓度、该元素的吸收和利用、耐受指数（TI）和易位因子（TF）、地上部分的金属浓度指数（CI）和生物蓄积因子（BAF）。玉米产量下降仅在锂浓度最高时发生。锂浓度在根中最高，茎叶中较低，花序中最低。耐受指数和EC50值表明根是对锂毒性最耐受的器官。易位因子的值表明锂从根部主要向茎部密集输出。地上部分比根部对锂的吸收更高，这主要是由于植物这些部分的产量更高，支持使用玉米进行锂植物修复的想法。耐受指数和EC50值表明根是对锂毒性最耐受的器官。易位因子的值表明锂从根部主要向茎部密集输出。地上部分比根部对锂的吸收更高，这主要是由于植物这些部分的产量更高，支持使用玉米进行锂植物修复的想法。耐受指数和EC50值表明根是对锂毒性最耐受的器官。易位因子的值表明锂从根部主要向茎部密集输出。地上部分比根部对锂的吸收更高，这主要是由于植物这些部分的产量更高，支持使用玉米进行锂植物修复的想法。