期刊
RADIOCHIMICA ACTA
卷 90, 期 5, 页码 303-307出版社
R OLDENBOURG VERLAG
DOI: 10.1524/ract.2002.90.5_2002.303
关键词
autumn fern (Dryopteris erythrosora); multitracer technique; rare earth element; uptake; yttrium
Irrespective of low bioavailability, some plant species accumulate Y and rare earth elements (REEs) to a great extent (accumulator species). The uptake mechanisms of Y and REEs were investigated for autumn fern, one of accumulator species. For comparison, plant species which accumulated poorly REEs (non-accumulator species) were also studied. In the present investigation, two noticeable phenomena were observed. (I) Autumn fern showed no ionic-radius dependence of Y-REE uptake by leaves, while non-accumulator species showed an extremely high uptake for Y compared with REEs. (II) Y-REE uptake by autumn fern was influenced by the addition of chelating reagents to the uptake solution, while no effect was observed for non-accumulator species.
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