Laboratory of Forestry, Ufa Institute of Biology, Ufa Federal Research Centre of the Russian Academy of Sciences, pr. Oktyabrya 69, Ufa, Russia, 450054.
Department of Chemistry and Biology, Institute of Mathematics, Science and Technology, Bunin Yelets State University, st. Kommunarov 28, Yelets, Russia, 399770.
Sci Rep. 2020 Jul 3;10(1):11025. doi: 10.1038/s41598-020-68114-y.
In this paper, Scots pine (Pinus sylvestris L.) roots grown in soils with and without contamination from emission of a plant steel were analyzed for Fe and Mn, as well as the shoots and needles with and lacking pollution. The aim was to assess the content of Fe and Mn in soils under given conditions, and the interaction between pine plant and soil in terms of metal accumulation in the fine roots, annual shoots, and annual needles. The iron content in the soil of polluted areas does not contrast with its control amount. Conversely, the iron content in fine pine roots under contamination conditions is 2.1-4.4 times higher than the control values. There were no significant excesses of the manganese content in the soil in polluted conditions compared to the control, but its content in the 0-20 cm soil layer is 27-32 times higher than the background concentrations. The iron contentment in belowground (fine roots) and aboveground (annual shoots and needles) parts of pine trees in a context of contamination is higher than the control values (2.1-4.4 and 1.50-1.54 times, respectively). The manganese content in fine pine roots under contamination conditions is 2.8-10.7 times less than in control, while its content in shoots and needles is higher (2.23-2.76 times) in comparison with the control. Based on the values of the biological accumulation and migration coefficients, what in each case slighter than one, for Scots pine the iron represent not an element that actively accumulates. Nevertheless, for manganese, this stock model is valid only for fine roots, whereas under the contaminated environment, the metal mobility steepen, and the migration pattern shifts towards increased manganese accumulation in the aboveground part of pine trees.
本文分析了生长在受工厂排放物污染和未受污染土壤中的欧洲赤松（Pinus sylvestris L.）根系，以及受污染和未受污染的枝叶中 Fe 和 Mn 的含量。目的是评估特定条件下土壤中 Fe 和 Mn 的含量，以及松树植物与土壤之间在细根、当年生枝条和当年生针叶中金属积累方面的相互作用。受污染地区土壤中的铁含量与对照量没有差异。相反，受污染条件下细根中的铁含量比对照值高 2.1-4.4 倍。与对照相比，污染条件下土壤中锰的含量没有明显过剩，但 0-20cm 土壤层中的含量比背景浓度高 27-32 倍。在污染背景下，地下（细根）和地上（当年生枝条和针叶）部分的铁含量高于对照值（分别为 2.1-4.4 倍和 1.50-1.54 倍）。受污染条件下细根中的锰含量比对照值低 2.8-10.7 倍，而当年生枝条和针叶中的锰含量较高（分别为对照值的 2.23-2.76 倍）。根据生物积累和迁移系数的值，每种情况下都略小于 1，对于欧洲赤松来说，铁不是一种主动积累的元素。然而，对于锰，这种蓄积模型仅适用于细根，而在受污染的环境下，金属的迁移率加剧，迁移模式转向增加松树地上部分的锰积累。
