Preliminary study of the enrichment and fractionation of REEs in a newly discovered REE hyperaccumulator Pronephrium simplex by SEC-ICP-MS and MALDI-TOF/ESI-MS

Lai, Yi Hsuan; Wang, Qiuquan; Yan, Wenwu; Yang, Limin; Huang, Benli

doi:10.1039/b501766a

Cited by 28 publications

(12 citation statements)

References 7 publications

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“…Plant-based remediation techniques can help reduce high REE concentrations in soils through the use of REE-accumulating plants (Chaney et al 1997;Padmavathiamma and Li 2007;Liu et al 2017). Relatively few plant species accumulating REEs are currently known; however, most of them are ferns (Ichihashi et al 1992;Ozaki et al 1997;Wei et al 2001;Zhang et al 2002;Shan et al 2003;Lai et al 2005Lai et al , 2006Liang et al 2014), which could represent a yet unexplored reservoir of REE accumulators. Therefore, we screened a large panel of 49 fern species, all hardy and ornamental ferns, on a substrate spiked with six REEs (La, Ce, Sm, Gd, Yb and Y).…”

Section: Discussionmentioning

confidence: 99%

“…The two species of fern that have the greatest capacity for REE accumulation are particularly interesting. Pronephrium simplex can accumulate up to 1200 mg kg -1 (Lai et al 2005(Lai et al , 2006, while Dicranopteris dichotoma can contain up to 3300 mg kg -1 (Ozaki et al 1997;Wei et al 2001;Shan et al 2003). It has been suggested that high concentrations of REEs in ferns may help these species adapt better to changing environments (Liu et al 2017).…”

Section: Introductionmentioning

confidence: 99%

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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: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

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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“…To date, 22 plant species have been reported to (hyper)accumulate REEs through field and/or laboratory investigations; these species belong to 11 families and 11 genera, with the greatest numbers being pteridophytes (ferns) (Liu et al 2017), such as Pronephrium simplex (up to 1200 mg kg −1 , Lai et al 2005) and Dicranopteris dichotoma (up to 3358 mg kg −1 , Wang et al 1997). Phytolacca americana is a known manganese hyperaccumulator (Min et al 2007;Xu et al 2009;Pollard et al 2009;Xue et al 2010); but also has REE accumulation abilities (Ichihashi et al 1992;Wu et al 2013).…”

Section: Introductionmentioning

confidence: 99%

The accumulation and fractionation of Rare Earth Elements in hydroponically grown Phytolacca americana L.

et al. 2017

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Background and Aims The widespread use of Rare Earth Elements (REEs) has resulted in localized soil pollution. Phytolacca americana L. has potential for REE phyto-extraction, but the related mechanism is not clear. Methods In this study, the uptake and fractionation of REEs, and the influence of REEs on biomass production was investigated in hydroponically grown plants. Furthermore, the effects of Ca 2+ and Al 3+ on REE uptake, and the role of organic acids in REE translocation were also examined. Results Results showed that biomass and accumulation of REEs in P. americana were enhanced at low REE concentrations, but inhibited at higher concentrations in solution. Significant heavy REE (HREE) enrichment was observed during the stem-to-leaf transport, with a quotient of ∑LREE/∑HREE decreasing from 0.75 to 0.23. Ca 2+ and Al 3+ treatments diminished REE accumulation. The ∑LREE/∑HREE ratio decreased from 0.84 to 0.62 with increasing input of Ca 2+ , but increased from 0.83 to 0.92 with higher Al addition. Conclusions LREEs appear to enter into the root of P. americana through Ca 2+ ion channels, whereas HREEs may share pathways with Al 3+. Finally, citrate plays an important role in the translocation of REEs in P. americana.

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“…(synonym: Dicranopteris linearis) and Pronephrium simplex, are fern species. [137][138][139] In contrast, the two currently known REEs hyperaccumulators outside China are woody species. linearis is available.…”

Section: Rare Earth Elements Hyperaccumulatorsmentioning

confidence: 99%

Hyperaccumulator Plants from China: A Synthesis of the Current State of Knowledge

Gurajala

et al. 2018

Environ. Sci. Technol.

213

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Hyperaccumulator plants are the material basis for phytoextraction research and for practical applications in decontaminating polluted soils and industrial wastes. China's high biodiversity and substantial mineral resources make it a global hotspot for hyperaccumulator plant species. Intensive screening efforts over the past 20 years by researchers working in China have led to the discovery of many different hyperaccumulators for a range of elements. In this review, we present the state of knowledge on all currently reported hyperaccumulator species from China, including Cardamine violifolia (selenium, Se), Dicranopteris dichotoma (rare earth elements, REEs), Elsholtzia splendens (copper, Cu), Phytolacca americana (manganese, Mn), Pteris vittata (arsenic, As), Sedum alfredii and Sedum plumbizicola (cadmium/zinc, Cd/Zn). This review covers aspects of the ecophysiology and molecular biology of tolerance and hyperaccumulation for each element. The major scientific advances resulting from the study of hyperaccumulator plants in China are summarized and synthesized.

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Preliminary study of the enrichment and fractionation of REEs in a newly discovered REE hyperaccumulator Pronephrium simplex by SEC-ICP-MS and MALDI-TOF/ESI-MS

Cited by 28 publications

References 7 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

The accumulation and fractionation of Rare Earth Elements in hydroponically grown Phytolacca americana L.

Hyperaccumulator Plants from China: A Synthesis of the Current State of Knowledge

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