Plant growth requires a complex network of arbuscular mycorrhizal (AM) fungi and bacteria to supply organic compounds and major (C, N, P, etc.) and trace nutrients to the roots. Hyperaccumulation by certain plant species is based on the threshold ‘maxima’ a plant can safely ingest/absorb an element from soils without tissue damage. The latter criteria for hyperaccumulation vary between elements. The amount of an element a plant can absorb depends both on the ability of the species to uptake the element and on the element concentrations and bioavailability in the substrate. A plant growing directly on a mineral-rich substrate or a short height above the soil should be able to access inorganic matter via the roots. In contrast, a plant capable of accumulating inorganic elements, but growing on a peat without direct root contact with the inorganic soil fraction, would suffer a dearth of mineral nutrients.

中文翻译：

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超富集是煤中微量元素有机结合的可行假说吗？


植物生长需要丛枝菌根 (AM) 真菌和细菌组成的复杂网络，为根部提供有机化合物以及主要（C、N、P 等）和微量营养物质。某些植物物种的超积累是基于植物可以安全地从土壤中摄取/吸收元素而不会造成组织损伤的阈值“最大值”。后一个超积累的标准因元素而异。植物可以吸收的元素量既取决于物种吸收元素的能力，也取决于基质中元素的浓度和生物利用度。直接生长在富含矿物质的基质上或土壤上方较短高度的植物应该能够通过根部获取无机物。相比之下，能够积累无机元素但生长在泥炭上而根部不与无机土壤部分直接接触的植物会缺乏矿质养分。