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Kaur P, Mahajan M, Gambhir H, Khan A, Khan MIR. Rare earth metallic elements in plants: assessing benefits, risks and mitigating strategies. PLANT CELL REPORTS 2024; 43:216. [PMID: 39145796 DOI: 10.1007/s00299-024-03305-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/13/2024] [Accepted: 07/30/2024] [Indexed: 08/16/2024]
Abstract
Rare earth elements (REEs) comprises of a uniform group of lanthanides and scandium (Sc) and yttrium (Y) finding their key importance in agriculture sectors, electronic and defense industries, and renewable energy production. The immense application of REEs as plant growth promoters has led to their undesirable accumulation in the soil system raising concerns for REE pollution as upcoming stresses. This review mainly addresses the chemistry of REEs, uptake and distribution and their biphasic responses in plant systems and possible plausible techniques that could mitigate/alleviate REE contamination. It extends beyond the present understanding of the biphasic impacts of rare earth elements (REEs) on physio-biochemical attributes. It not only provides landmarks for further exploration of the interrelated phytohormonal and molecular biphasic nature but also introduces novel approaches aimed at mitigating their toxicities. By delving into innovative strategies such as recycling, substitution, and phytohormone-assisted mitigation, the review expands upon existing knowledge of REEs whilst also offering pathways to tackle the challenges associated with REE utilization.
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Affiliation(s)
- Pravneet Kaur
- Department of Botany, Jamia Hamdard, New Delhi, 110062, India
| | - Moksh Mahajan
- Department of Botany, Jamia Hamdard, New Delhi, 110062, India
| | | | - Adiba Khan
- Department of Botany, University of Lucknow, Lucknow, U. P., India
| | - M Iqbal R Khan
- Department of Botany, Jamia Hamdard, New Delhi, 110062, India.
- Department of Plant Biotechnology, Korea University, Seoul, 02841, South Korea.
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Wang C, Deng L, Zhang Y, Zhao M, Liang M, Lee LC, Cristhian CO, Yang L, He T. Farmland phytoremediation in bibliometric analysis. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2024; 351:119971. [PMID: 38169268 DOI: 10.1016/j.jenvman.2023.119971] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/13/2023] [Revised: 12/09/2023] [Accepted: 12/25/2023] [Indexed: 01/05/2024]
Abstract
Phytoremediation is an environmentally friendly, economical, and sustainable technique for restoring farmland. It can remove heavy metals and organic pollutants from the soil through the implementation of hyperaccumulator plants. In recent years, it has garnered significant interest from academic and industrial sectors. This article screened 368 research papers from the Web of Science core collection database related to farmland phytoremediation and conducted a bibliometric analysis of the domain based on CiteSpace. The paper intuitively demonstrates the most influential countries, the most productive institutions, the most contributing groups of authors, and the primary sources of farmland phytoremediation research domain. The findings additionally indicate that the research hotspots include: (1) mechanisms and principles of phytoremediation, (2) the improvement of restoration efficiency, (3) the economic, ecological, and sustainable development of phytoremediation. The exploration of plants with potential to accumulate heavy metals and produce large amounts of biomass is the research frontier within the field of farmland phytoremediation. Additionally, this bibliometric analysis can help scholars willing to work in this research field by concisely understanding the overall research field and frontiers. With the continuous improvement of phytoremediation and its combination with other remediation technologies, the future of farmland remediation will have a promising prospect.
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Affiliation(s)
- Chaoqun Wang
- School of Ecology and Environment, Ningxia University, Yinchuan, 750021, PR China.
| | - Lirong Deng
- College of Resources and Environment, Yangtze University, Wuhan, 430100, PR China.
| | - Yongxiang Zhang
- College of Resources and Environment, Yangtze University, Wuhan, 430100, PR China.
| | - Mingtao Zhao
- School of Ecology and Environment, Ningxia University, Yinchuan, 750021, PR China.
| | - Meiqi Liang
- School of Ecology and Environment, Ningxia University, Yinchuan, 750021, PR China.
| | - Lien-Chieh Lee
- School of Environmental Science and Engineering, Hubei Polytechnic University, Huangshi, 435003, PR China.
| | - Chicaiza-Ortiz Cristhian
- School of Environmental Science and Engineering, China-UK·Low-Carbon College, Shanghai Jiao Tong University, Shanghai, 200240, PR China; Biomass to Resources Group, Universidad Regional Amazónica IKIAM, Tena, Napo, 150150, Ecuador.
| | - Long Yang
- School of Ecology and Environment, Institute of Disaster Prevention, 065201, PR China.
| | - Tonghui He
- School of Ecology and Environment, Ningxia University, Yinchuan, 750021, PR China.
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Dinh T, Dobo Z, Kovacs H. Phytomining of rare earth elements - A review. CHEMOSPHERE 2022; 297:134259. [PMID: 35271907 DOI: 10.1016/j.chemosphere.2022.134259] [Citation(s) in RCA: 18] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/19/2021] [Revised: 03/04/2022] [Accepted: 03/06/2022] [Indexed: 06/14/2023]
Abstract
The increasing demand for rare earth elements (REEs) for modern industry has led to a surge in mining activities and consequently has released these metals into the environment. Intensifying REEs in a habitat has impacts on its ecosystem, but on the other side, it also provides the opportunity to recover REEs from low-grade minerals. Phytomining has emerged as an ecologically sound technique to extract these valuable elements from contaminated soils where traditional mining is not competitive. This paper presents and reviews the concept of REE phytomining from three scientific areas. The accumulation of rare earth metals in plants is the first stage, referred to as the phytoextraction process. This is followed by elevating REE concentrations into bio-ores via the enrichment phase. Ultimately, extraction is the final step to complete the phytomining pathway for reclaiming REEs in brownfield land.
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Affiliation(s)
- Truong Dinh
- Institute of Energy and Quality, University of Miskolc, 3515, Miskolc, Hungary
| | - Zsolt Dobo
- Institute of Energy and Quality, University of Miskolc, 3515, Miskolc, Hungary
| | - Helga Kovacs
- Institute of Energy and Quality, University of Miskolc, 3515, Miskolc, Hungary.
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Mohsin M, Salam MMA, Nawrot N, Kaipiainen E, Lane DJ, Wojciechowska E, Kinnunen N, Heimonen M, Tervahauta A, Peräniemi S, Sippula O, Pappinen A, Kuittinen S. Phytoextraction and recovery of rare earth elements using willow (Salix spp.). THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 809:152209. [PMID: 34883169 DOI: 10.1016/j.scitotenv.2021.152209] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/02/2021] [Revised: 11/30/2021] [Accepted: 12/02/2021] [Indexed: 06/13/2023]
Abstract
Soil and water contaminations are caused by rare earth elements (REEs) due to mining and industrial activities, that threaten the ecosystem and human health. Therefore, phytoremediation methods need to be developed to overcome this problem. To date, little research has been conducted concerning the phytoremediation potential of Salix for REEs. In this study, two Salix species (Salix myrsinifolia and Salix schwerinii) and two Salix cultivars (Klara and Karin) were hydroponically exposed to different concentrations of six-REE for 4 weeks. The treatments were: T1 (Control: tap water), T2 (La: 50 mg/L) and T3 (La 11.50 + Y 11 + Nd 10.50 + Dy 10 + Ce 12 and Tb 11.50 in mg L-1). The effects of the REE on Salix growth indicators (height, biomass, shoot diameter and root length), concentrations of REE in the produced biomass, and accumulation of REE in different parts of the Salix (stem, root, and leaf) tissues, were determined. In addition, the retention of REE in ashes following Salix combustion (800 and 1000 °C) was determined. The result indicates that with La and REE exposure, the height growth, dry biomass, shoot diameter and root length of all Salix remained equivalent to the control treatment excluding Klara, which displayed relatively higher growth in all parameters. Further, among the REE studied, the highest La concentration (8404 μg g-1 DW) and La accumulation (10,548 μg plant-1) were observed in Karin and Klara root respectively. Translocations and bioconcentration factors were discovered at <1 for all Salix, which indicates their phytostabilization potential. The total REE concentrations in bottom ashes varied between 7 and 8% with retention rates between 85 and 89%. This study demonstrates that Salix are suitable candidates for REE phytostabilization and the remediation of wastewater sites to limit metals percolating to the water layers in the ecosystem.
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Affiliation(s)
- Muhammad Mohsin
- School of Forest Sciences, University of Eastern Finland, Yliopistokatu 7, P.O. Box 111, 80100 Joensuu, Finland
| | - Mir Md Abdus Salam
- School of Forest Sciences, University of Eastern Finland, Yliopistokatu 7, P.O. Box 111, 80100 Joensuu, Finland
| | - Nicole Nawrot
- Gdansk University of Technology, Faculty of Civil and Environmental Engineering, Narutowicza 11/12, 80-233 Gdansk, Poland
| | - Erik Kaipiainen
- School of Forest Sciences, University of Eastern Finland, Yliopistokatu 7, P.O. Box 111, 80100 Joensuu, Finland
| | - Daniel J Lane
- Department of Environmental and Life Sciences, University of Eastern Finland, Yliopistonranta 1E, P.O. Box 1627, 70211 Kuopio, Finland; Mineral Resources, Commonwealth Scientific and Industrial Research Organization (CSIRO), Queensland Centre for Advanced Technologies (QCAT), 1 Technology Court, Pullenvale, QLD 4069, PO Box 883, Kenmore, Australia
| | - Ewa Wojciechowska
- Gdansk University of Technology, Faculty of Civil and Environmental Engineering, Narutowicza 11/12, 80-233 Gdansk, Poland
| | - Niko Kinnunen
- Department of Chemistry, University of Eastern Finland, P.O. Box 111, 80101 Joensuu, Finland
| | - Mikko Heimonen
- Department of Environmental and Life Sciences, University of Eastern Finland, Yliopistonranta 1E, P.O. Box 1627, 70211 Kuopio, Finland
| | - Arja Tervahauta
- Department of Environmental and Life Sciences, University of Eastern Finland, Yliopistonranta 1E, P.O. Box 1627, 70211 Kuopio, Finland
| | - Sirpa Peräniemi
- School of Pharmacy, Biocenter Kuopio, University of Eastern Finland, P.O. Box 1627, FIN-70211 Kuopio, Finland
| | - Olli Sippula
- Department of Environmental and Life Sciences, University of Eastern Finland, Yliopistonranta 1E, P.O. Box 1627, 70211 Kuopio, Finland; Department of Chemistry, University of Eastern Finland, P.O. Box 111, 80101 Joensuu, Finland
| | - Ari Pappinen
- School of Forest Sciences, University of Eastern Finland, Yliopistokatu 7, P.O. Box 111, 80100 Joensuu, Finland
| | - Suvi Kuittinen
- School of Forest Sciences, University of Eastern Finland, Yliopistokatu 7, P.O. Box 111, 80100 Joensuu, Finland.
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Chen H, Chen H, Chen Z. A review of in situ phytoextraction of rare earth elements from contaminated soils. INTERNATIONAL JOURNAL OF PHYTOREMEDIATION 2021; 24:557-566. [PMID: 34365851 DOI: 10.1080/15226514.2021.1957770] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Rare earth elements (REE), with their distinct physical and chemical properties, are critical components of green economic development. Intensive exploitation and application of REE are wreaking havoc on the environment. But research on REE is still limited to a small number and in a few countries. With the growing interest of REE in modern technologies and their potential ecological risks, phytoextraction seems promising for both REE pollution reduction and resource circulation. This paper summarizes the recent findings in the literature concerning REE hyperaccumulating plants and relevant accumulation mechanisms. Additional interests should be focused on a broader range of plant species and a global scale to achieve a sustainable REE supply.Novelty statementThis paper summarized the referenced potential rare earth elements (REE) hyperaccumulator plants that accumulated higher than REE 100 µg/g and discussed their accumulation and translocation mechanisms.We addressed the synonyms of Dicranopteris pedata, Dicranopteris dichotoma Bernh., and Dicranopteris linearis.Although Dicranopteris pedata has been extensively studied in the sense of REE hyperaccumulation, active phytoextraction outside of its native range, as well as in accumulation of the precious heavy rare earth elements, may be difficult. Thus, further interests should take these disadvantages into account.
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Affiliation(s)
- Haibin Chen
- School of History and Geography, Minnan Normal University, Zhangzhou, China
- State Key Laboratory for Subtropical Mountain Ecology of the Ministry of Science and Technology and Fujian Province, Fujian Normal University, Fuzhou, China
- School of Geographical Sciences, Fujian Normal University, Fuzhou, China
| | - Haimei Chen
- Department of Dendrology and Floriculture, Faculty of Horticultural, Hungarian University of Agriculture and Life Sciences, Budapest, Hungary
| | - Zhibiao Chen
- State Key Laboratory for Subtropical Mountain Ecology of the Ministry of Science and Technology and Fujian Province, Fujian Normal University, Fuzhou, China
- School of Geographical Sciences, Fujian Normal University, Fuzhou, China
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