Beneficial Effect of Rare Earth Elements on the Growth of Dryopteris Erythrosora

Ozaki, Takuo; Enomoto, Shuichi; Minai, Yoshitaka; Ambe, S.; Ambe, F.; Makide, Yoshihiro

doi:10.1016/s0176-1617(00)80070-x

Cited by 28 publications

(8 citation statements)

References 25 publications

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“…1). However, none of the 49 species have been previously tested for their REE accumulation capacity, with the exception of Dryopteris erythrosora, which has been reported as an REEaccumulating species (Ozaki et al 2000). The second screening included 14 species, which represented 28 % of the ferns tested in the first screening.…”

Section: Identification Of New Ree-accumulating Fernsmentioning

confidence: 99%

Identification of new hardy ferns that preferentially accumulate light rare earth elements: a conserved trait within fern species

et al. 2020

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Environmental contextRare earth elements (REEs) are strategic metals and emerging contaminants for which plant-based remediation measures are needed. We screened a collection of hardy ferns and identified new accumulator species that preferentially transferred light REEs to their fronds. This study is an important step towards understanding the mechanisms of REE accumulation in plants. AbstractRare earth elements (REEs) include the lanthanides plus yttrium and scandium, and can be split according to their atomic mass into light (LREEs) and heavy REEs (HREEs). The increasing demand for REEs is mainly driven by new technologies, and their current low recyclability has led them to become emerging contaminants. The identification of new REE accumulators may help in determining the REE transfer mechanisms and may result in interesting candidates for phytoremediation techniques. To that end, a collection of 49 hardy fern species, grown in REE-spiked substrate, were screened for their potential in REE accumulation. REE concentrations were very low in the fronds of all Polypodium species, whereas all Athyrium species highly accumulated REEs. The REE accumulation level was more variable among the different species of Dryopteris, Blechnum, Woodwardia, Cystopteris and Polystichum. However, whatever the species, LREEs were preferentially transferred to the fronds over HREEs. This conserved trait was independent of the availability of different REEs in the substrate and instead may arise from specific transfer systems in ferns for the two groups of REEs. Furthermore, REE accumulation was correlated to Ca and Al, which suggested the existence of common uptake pathways. Altogether, these results are of great interest for phytoremediation purposes since appropriate species can be chosen according to the area to be remediated, and they also provide new insights into a more in-depth characterisation of the underlying REE accumulation mechanisms in ferns.

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Section: Identification Of New Ree-accumulating Fernsmentioning

confidence: 99%

Identification of new hardy ferns that preferentially accumulate light rare earth elements: a conserved trait within fern species

et al. 2020

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“…The multitracer technique, first developed by Ambe et al using the RIKEN Ring Cyclotron, rendered it possible to trace the behavior of many radionuclides at the same time [10]. The multitracer technique has demonstrated well its usability in environmental research [11,12,13,14].…”

Section: Introductionmentioning

confidence: 99%

Effect of humic acid on the bioavailability of radionuclides to rice plants

Ozaki¹,

Ambe

Abe

et al. 2003

Anal Bioanal Chem

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We investigated the effect of humic acid and solution pH on the uptake of the radionuclides, (83)Rb, (137)Cs, (54)Mn, (65)Zn, (88)Y, (102)Rh, and (75)Se in rice plants by the multitracer technique. The addition of humic acid to a culture medium containing SiO(2) increased the uptake of Mn and Zn at pH 4.3, whereas their uptake was decreased at pH 5.3. Humic acid depressed the uptake of Y at both pHs. The uptake of Se, which does not interact with humic acid, was not affected by its presence. These results suggest that uptake of the radionuclides by the rice plant is regulated by the affinity of radioactive nuclides for humic acid, as well as by the soil solution's pH.

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“…Another accumulator species, autumn fern (Dryopteris erythrosora), exhibited enhanced growth following addition of La to a culture medium [10]. These results suggest that some unknown mechanisms exist in the uptake of REEs by accumulator species.…”

Section: Introductionmentioning

confidence: 86%

Multitracer study on the uptake mechanism of yttrium and rare earth elements by autumn fern

Ozaki¹,

Ambe²,

Enomoto

et al. 2002

Radiochimica Acta

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Autumn fern (Dryopteris erythrosora) / Multitracer technique / Rare earth element / Uptake / YttriumSummary. 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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Beneficial Effect of Rare Earth Elements on the Growth of Dryopteris Erythrosora

Cited by 28 publications

References 25 publications

Identification of new hardy ferns that preferentially accumulate light rare earth elements: a conserved trait within fern species

Identification of new hardy ferns that preferentially accumulate light rare earth elements: a conserved trait within fern species

Effect of humic acid on the bioavailability of radionuclides to rice plants

Multitracer study on the uptake mechanism of yttrium and rare earth elements by autumn fern

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