Institute of Biosciences/Interdisciplinary Environmental Research Centre, Technische Universität Bergakademie Freiberg, Freiberg, Germany.
Environmental Botany Unit, Department of Plant Biology, University of Ilorin, Ilorin, Nigeria.
Int J Phytoremediation. 2022;24(12):1310-1320. doi: 10.1080/15226514.2021.2025207. Epub 2022 Jan 11.
Given the possible benefits of phytoextraction, this study evaluated the potential of nine plant species for phytoaccumulation/co-accumulation of selected nutrients, rare earth elements, germanium, and potentially toxic elements. Plants were grown on 2 kg potted soils for 12 weeks in a greenhouse, followed by a measurement of dry shoot biomass. Subsequently, elemental concentrations were determined using inductively coupled mass spectrometry, followed by the determination of amounts of each element accumulated by the plant species. Results show varying accumulation behavior among plants for the different elements. and were better accumulators of most elements investigated except for chromium, germanium, and silicon that were better accumulated by , the only grass species. accumulated 9, 24, and 10% of Copper, Chromium, and Rare Earth Elements in the mobile/exchangeable element fraction of the soils while and accumulated amounts of Cr and Ge ∼58 and 17% (for ) and 20 and 9% (for ) of the mobile/exchangeable element fraction of the soils. Results revealed co-accumulation potential for some elements e.g., (1) Si, Ge, and Cr, (2) Cu and Pb, (3) P, Ca, Co, and REEs based on chemical similarities/sources of origin.
鉴于植物提取可能带来的好处，本研究评估了 9 种植物物种在植物吸收/共吸收选定营养物质、稀土元素、锗和潜在有毒元素方面的潜力。这些植物在温室中于 2 公斤盆栽土壤中生长了 12 周，随后测量了干茎生物量。随后，使用电感耦合质谱法测定了元素浓度，随后测定了植物物种积累的每种元素的量。结果表明，不同植物对不同元素的积累行为存在差异。除铬、锗和硅外， 和 是大多数研究元素的更好积累者，而 是唯一的草种，对锗和硅的积累最好。 在土壤的可移动/可交换元素部分积累了 9%、24%和 10%的铜、铬和稀土元素，而 和 分别积累了约 58%和 17%（对于 ）和 20%和 9%（对于 ）的铬和锗的可移动/可交换元素部分土壤。结果表明，一些元素具有共积累潜力，例如（1）硅、锗和铬，（2）铜和铅，（3）磷、钙、钴和稀土元素，这是基于化学相似性/来源。
