The uptake and translocation of nickel (Ni) and zinc (Zn) were compared in hydroponics in three species of Brassicaceae, Lobularia maritima, Aurinia saxatilis, and Odontarrhena corsica at 2 and 10 μM Ni or Zn in the nutrient solution. Odontarrhena corsica, which is a known hyperaccumulator of Ni, but not of Zn, accumulated significantly more Ni in its roots and shoots than did L. maritima and A. saxatilis, which are both non-hyperaccumulators. The Ni translocation factor and Ni uptake were by far the highest in O. corsica, compared to L. maritima and A. saxatilis. The Zn translocation factor was significantly higher in L. maritima than in A. saxatilis and O. corsica. In the 10-μM Zn treatment, the Zn uptake was strongly and significantly higher in O. corsica than in L. maritima and A. saxatilis. Aurinia saxatilis is clearly an excluder, with low uptake and translocation, both for Ni and Zn. Of all the species, L. maritima showed by far the highest Zn translocation levels, both at 2 and 10 μM Zn in the nutrient solution (TF = ±0.4, compared to ±0.1 in A. saxatilis and O. corsica). Also its Ni translocation approached hyperaccumulator-like level (TF = ±1), though only in the 10-μM Ni treatment and still much lower than in O. corsica.

中文翻译：

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三种十字花科植物对镍和锌的吸收和易位的比较：镍超积累植物 Odontarrena corsica 和两种非超积累植物 Aurinia saxatilis 和 Lobularia maritima

在营养液中添加 2 μM Ni 或 Zn 和 10 μM Ni 或 Zn 时，比较了十字花科、Lobularia maritima、Aurinia saxatilis和Odontarrena corsica三种植物的水培过程中镍 (Ni) 和锌 (Zn) 的吸收和易位。Odontarrena corsica是已知的 Ni 超富集植物，但不是 Zn 超富集植物，其根和芽中积累的 Ni 明显多于非超富集植物L. maritima和A. saxatilis 。与L. maritima和A. saxatilis相比，O. corsica 的镍易位因子和镍吸收量迄今为止最高。L. maritima中的 Zn 易位因子显着高于A. saxatilis和O. corsica。在 10 μM Zn 处理中，O. corsica的 Zn 吸收强烈且显着高于L. maritima和A. saxatilis。Aurinia saxatilis显然是一种排斥者，对镍和锌的吸收和易位都很低。在所有物种中，L. maritima表现出迄今为止最高的 Zn 易位水平，营养液中 Zn 含量均为 2 和 10 μM（TF = ±0.4，而A. saxatilis和O. corsica的 TF = ±0.1 ）。此外，其 Ni 易位也接近超累积水平 (TF = ±1)，尽管仅在 10 μM Ni 处理中且仍远低于O. corsica。