Hyperaccumulators for potentially toxic elements: A scientometric analysis
Open accessAbstract
Phytoremediation is an effective and low-cost method for the remediation of soil contaminated by potentially toxic elements (metals and metalloids) with hyperaccumulating plants. This study analyzed hyperaccumulator publications using data from the Web of Science Core Collection (WoSCC) (1992–2020). We explored the research status on this topic by creating a series of scientific maps using VOSviewer, HistCite Pro, and CiteSpace. The results showed that the total number of publications in this field shows an upward trend. Dr. Xiaoe Yang is the most productive researcher on hyperaccumulators and has the broadest international collaboration network. The Chinese Academy of Sciences (China), Zhejiang University (China), and the University of Florida (USA) are the top three most productive institutions in the field. China, the USA, and India are the top three most productive countries. The most widely used journals were the International Journal of Phytoremediation, Environmental Science and Pollution Research, and Chemosphere. Co-occurrence and citation analysis were used to identify the most influential publications in this field. In addition, possible knowledge gaps and perspectives for future studies are also presented.
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Several plants such as Brassicaceae, Noccaea caerulescens, Arabidopsis thaliana, Chicorium spinosum, Sedum alfredii, and Silene vulgaris O. muralis are studied in detail to understand the mechanism of hyperaccumulation.
“In addition, several plants, such as Brassicaceae, Noccaea caerulescens, Arabidopsis thaliana, Chicorium spinosum, and Sedum alfredii. Hance, and Silene vulgaris O. muralis, are studied in detail to have deep insights into understanding the mechanism of hyperaccumulation (Kaushal et al., 2021; Zhang et al., 2021).”
From Plant hyperaccumulators: a state-of-the-art review on mechanism of heavy metal transport and sequestration (2025) · cites this paper as Zhang et al., 2021
The References section cites studies of hyperaccumulation and metal transport in Thlaspi caerulescens and Sedum alfredii, as well as metal tolerance in Arabidopsis thaliana. It does not substantiate the full list of plants—particularly Chicorium spinosum and Silene vulgaris—or say that all were studied in detail to understand hyperaccumulation mechanisms. (LLM, conf=0.78)
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“These tolerance mechanisms may include (1) organometallic complexes with donor ligands, including organic acids [21,22], cysteine [23,24], nicotinamide [25,26], histidine [27–30], and other thiols with low molecular weight [31]; (2) transportation capability [32], e.”
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“, it is thought that arsenic (As) uptake by Pteris vittata is achieved through a high-affinity phosphate transport system [33]; (3) compartmentation potential [34,35], e.”
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“Hyperaccumulators can generally accumulate large amounts of PTEs at concentrations 10 to 100 times higher than non-hyperaccumulating plants can tolerate [12].”
BackgroundThe hyperaccumulation of metals by plants
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“, it is thought that arsenic (As) uptake by Pteris vittata is achieved through a high-affinity phosphate transport system [33]; (3) compartmentation potential [34,35], e.”
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“In addition, PTEs may pollute the air through wind erosion [5,6] as well as surface and underground water bodies through surface runoff or deep percolation [7].”
BackgroundGrowth response and phytoextraction of copper at different levels in soils by Elsholtzia splendens
Jiang, L., Yang, X. E., & He, Z. L. (2004) · Chemosphere · doi:10.1016/j.chemosphere.2004.01.026 · Cited by 125 · see citing works
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“Phytoremediation is an efficient and environmentally friendly remediation strategy for PTEs pollution [8,9], which can be used for the reclamation of contaminated soils without disturbing soil fertility and biodiversity [10,11].”
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“For example, the frequently reported “blood lead incident” [2], “cadmium rice” [3], and “heavy metal contaminated vegetables” [4] are all associated with PTE pollution.”
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“The use of terms for PTE, such as “zinc” [97,98], “cadmium” [74,99], and “copper” [100–103], as well as hyperaccumulators, such as “thlaspi-caerulescens” [14,104,105], indicates that the phytoremediation of particular metal (i.”
Fuhrmann, M., Lasat, M. M., Ebbs, S. D., Kochian, L. V., & Cornish, J. (2002) · Journal of Environmental Quality · doi:10.2134/jeq2002.9040 · Cited by 97 · cited 1× · see citing works
“The numbers in the circles and their publications are: 135 [60], 138 [65], 144 [66], 145 [67], 149 [68], 165 [80], 198 [81], 199 [82], 200 [83], 210 [84], 229 [85], 411 [69], 457 [75], 508 [73], 516 [70], 522 [76], 579 [86], 666 [87], 924 [88], 943 [89], 1128 [74], 1429 [90], 1924 [91], 1952 [92], 2998 [71], 3063 [72]…”
Adsorption of nitrate, phosphate, nickel and lead on soils: Risk of groundwater contamination
Abdelwaheb, M., Jebali, K., Dhaouadi, H., & Dridi‐Dhaouadi, S. (2019) · Ecotoxicology and Environmental Safety · doi:10.1016/j.ecoenv.2019.04.040 · Cited by 97 · cited 1× · see citing works
“In addition, PTEs may pollute the air through wind erosion [5,6] as well as surface and underground water bodies through surface runoff or deep percolation [7].”
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“Phytoremediation is used to describe the ability of hyperaccumulators to remove PTEs from soil; therefore, terms such as “tolerance”, “removal”, “antioxidant enzymes”, and “rhizosphere” are mentioned repeatedly [75,95,96].”
Zemanová, V., Pavlı́k, M., Pavlı́ková, D., & Tlustoš, P. (2014) · Plant Soil and Environment · doi:10.17221/544/2014-pse · Cited by 93 · see citing works
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Manganese accumulation in the leaf mesophyll of four tree species: a PIXE/EDAX localization study
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“Baker investigated the effects of a variety of hyperaccumulators [59–61] on pollution of PTEs, including nickel (Ni) [62], manganese (Mn) [63], and cadmium (Cd) [64], among other metals and metalloids.”
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Soil moisture effects on uptake of metals by Thlaspi, Alyssum, and Berkheya
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“These tolerance mechanisms may include (1) organometallic complexes with donor ligands, including organic acids [21,22], cysteine [23,24], nicotinamide [25,26], histidine [27–30], and other thiols with low molecular weight [31]; (2) transportation capability [32], e.”
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Peterson, L. R., Trivett, V., Baker, A. J. M., Aguiar, C., & Pollard, A. J. (2003) · Chemoecology · doi:10.1007/s00049-003-0234-4 · Cited by 61 · see citing works
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“The use of terms for PTE, such as “zinc” [97,98], “cadmium” [74,99], and “copper” [100–103], as well as hyperaccumulators, such as “thlaspi-caerulescens” [14,104,105], indicates that the phytoremediation of particular metal (i.”
Concentration of heavy metals in Seagrasses tissue of the Palk Strait, Bay of Bengal
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Sedum alfredii: A New Lead Accumulating Ecotype
He, B., Yang Xiao, E., Zhong, N. W., Zhang, W. Y., Xian, L. X., & Qian, Y. Z. (2002) · Journal of Integrative Plant Biology · Cited by 59 · see citing works
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“The use of terms for PTE, such as “zinc” [97,98], “cadmium” [74,99], and “copper” [100–103], as well as hyperaccumulators, such as “thlaspi-caerulescens” [14,104,105], indicates that the phytoremediation of particular metal (i.”
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Developing commercial phytoextraction technologies : practical considerations
Angle, J. S., Chaney, R. L., Baker, A. J. M., Li, Y., Reeves, R. D., Volk, V. V., Roseberg, R. J., Brewer, E. P., Burke, S., & Nelkin, J. (2001) · South African Journal of Science · Cited by 45 · see citing works
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“Phytoremediation is used to describe the ability of hyperaccumulators to remove PTEs from soil; therefore, terms such as “tolerance”, “removal”, “antioxidant enzymes”, and “rhizosphere” are mentioned repeatedly [75,95,96].”
Effects of copper oxide nanoparticles to Solanum nigrum and its potential for phytoremediation
Abdel-Wahab, D. A., Othman, N. A. R. M., & Hamada, A. M. (2019) · Plant Cell Tissue and Organ Culture (PCTOC) · doi:10.1007/s11240-019-01588-5 · Cited by 38 · see citing works
Effect of plant growth regulators, calcium and citric acid on copper toxicity in pea seedlings
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“These tolerance mechanisms may include (1) organometallic complexes with donor ligands, including organic acids [21,22], cysteine [23,24], nicotinamide [25,26], histidine [27–30], and other thiols with low molecular weight [31]; (2) transportation capability [32], e.”
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“These tolerance mechanisms may include (1) organometallic complexes with donor ligands, including organic acids [21,22], cysteine [23,24], nicotinamide [25,26], histidine [27–30], and other thiols with low molecular weight [31]; (2) transportation capability [32], e.”
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Chen, H., & Cutright, T. J. (2002) · Journal of Soils and Sediments · doi:10.1007/bf02991040 · Cited by 36 · cited 1× · see citing works
“For instance, Chen and Cutright [39] found that ethylene diamine tetraacetic acid (EDTA) could increase the concentration of cadmium (Cd) in the stem of sunflower, but the total biomass of plants decreased sharply.”
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Accumulation of copper by the aquatic macrophyte Salvinia biloba Raddi (Salviniaceae)
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Tolerance, arsenic uptake, and oxidative stress inAcacia farnesianaunder arsenate-stress
Alcántara-Martínez, N., Guizar, S., Rivera‐Cabrera, F., Anicacio-Acevedo, B. E., Buendia-Gonzalez, L., & Volke-Sepúlveda, T. (2015) · International Journal of Phytoremediation · doi:10.1080/15226514.2015.1118432 · Cited by 21 · cited 1× · see citing works
“Tolerance is a key prerequisite for the accumulation and phytoremediation of PTEs [37,38].”
BackgroundIs annual or perennial harvesting more efficient in Ni phytoextraction?
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“Phytoremediation is an efficient and environmentally friendly remediation strategy for PTEs pollution [8,9], which can be used for the reclamation of contaminated soils without disturbing soil fertility and biodiversity [10,11].”
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“These tolerance mechanisms may include (1) organometallic complexes with donor ligands, including organic acids [21,22], cysteine [23,24], nicotinamide [25,26], histidine [27–30], and other thiols with low molecular weight [31]; (2) transportation capability [32], e.”
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Copper Uptake and Tolerance in Two Contrasting Ecotypes ofElsholtzia argyi
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Declines in adult blood lead levels in New York City compared with the United States, 2004–2014
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“For example, the frequently reported “blood lead incident” [2], “cadmium rice” [3], and “heavy metal contaminated vegetables” [4] are all associated with PTE pollution.”
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“, description, classification, distribution, collection of records, and analysis of data), and applications, examples, or demos [106].”
BackgroundUptake, Distribution and Accumulation of Copper in Two Ecotypes of Elsholtzia
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Flagged first, then by citations
3 of the 109 references couldn’t be matched to a known paper.
Research works printed but not linked: 1
- Callow, J.A., Ed.; Elsevier: Amsterdam, The Netherlands, 2003; Volume 40, pp. 63-105.
Cited by
Sorted by citations
Applications of Computed Tomography (CT) in environmental soil and plant sciences
Zhang, H., He, H., Gao, Y., Mady, A. Y., Filipović, V., Dyck, M. F., Lv, J., & Liu, Y. (2022) · Soil and Tillage Research · doi:10.1016/j.still.2022.105574 · Cited by 74 · see citing works
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“Hance, and Silene vulgaris O. muralis , are studied in detail to have deep insights into understanding the mechanism of hyperaccumulation (Kaushal et al., 2021; Zhang et al., 2021).”
Yang, J., Huang, Y., Zhao, G., Li, B., Qin, X., Xu, J., & Li, X. (2022) · Chemosphere · doi:10.1016/j.chemosphere.2022.134045 · Cited by 40 · see citing works
Scientometrics of Scientometrics Based on Web of Science Core Collection Data between 1992 and 2020
Liu, Y., & He, H. (2023) · Information · doi:10.3390/info14120637 · Cited by 28 · see citing works
Cui, H., Chen, B.-B., Yang, F., Han, T., Zeng, R., Lei, L., & liu, S. (2024) · Environmental Science Advances · doi:10.1039/d4va00293h · Cited by 17 · see citing works
“48 Furthermore, studies have found that while plants such as okra and grain amaranth have much lower accumulation rates compared to Sedum alfredii , and they can potentially match its total accumulation due to their high biomass.”
Wang, J., Turner, N. C., Feng, H., Dyck, M. F., & He, H. (2022) · Journal of Experimental Botany · doi:10.1093/jxb/erac424 · Cited by 16 · see citing works
Scientometric study of treatment technologies of soil pollution: Present and future challenges
Valdiviezo-Gonzáles, L., Olivera, C. A. C., Torres, R. C., García-Ávila, F., Cerrón, R. M., & Paredes, E. A. A. (2022) · Applied Soil Ecology · doi:10.1016/j.apsoil.2022.104695 · Cited by 15 · see citing works
Response patterns of the microbiome during hexavalent chromium remediation by Tagetes erecta L.
Xiao, J., Wang, D., Sinchan, B., Mushinski, R. M., Jin, D., & Deng, Y. (2024) · The Science of The Total Environment · doi:10.1016/j.scitotenv.2024.173413 · Cited by 11 · see citing works
“BCF and TF are important indicators of Cr uptake and transport capacity of plants (Zhang et al., 2021a).”
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Science Mapping of Meta-Analysis in Agricultural Science
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Phytoremediation of Mercury Contamination: Bibliometric Analysis
Mosquera-Chaverra, L., Paredes, D., López, A. M., Arias, C. A., & Carvalho, P. N. (2024) · Sustainability · doi:10.3390/su16219408 · Cited by 8 · see citing works
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Esfe, M. H., Aghayari, M. J., & Toghraie, D. S. (2026) · International Communications in Heat and Mass Transfer · doi:10.1016/j.icheatmasstransfer.2026.110744
- Authors
- Zhang, D., Dyck, M., Filipović, L., Filipović, V., Lv, J., & He, H.
- Affiliations
- Northwest A&F University (CN)
- University of Alberta (CA)
- University of Zagreb (HR)
- Corresponding author
- He, Hailong
- Venue
- Agronomy
- Publisher
- MDPI AG
- Published
- 2021-08-29
- Volume
- 11
- Issue
- 9
- Pages
- 1729
- ISSN
- 2073-4395 (ISSN-L)
- OpenAlex
- W3198884818
- Cited by
- 13
- References
- 109
- Citations by year
- 2026: 1 · 2025: 1 · 2024: 5 · 2023: 2 · 2022: 4
- FWCI
- 0.68
- Type
- journal article
- Language
- en
- Open access
- gold
- doi.org
- Licence
- Locations
- Agronomy (publishedVersion, cc-by)
- FedUni ResearchOnline (Federation University Australia) (submittedVersion, cc-by)
- DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
- Funders
- National Natural Science Foundation of China (No.42077135)
- China Postdoctoral Science Foundation (2018M641024)
- the Training Program Foundation for the Young Talents of Northwest A&F University,and the 111project (No.B12007)
- Topics
- Physical Sciences › Environmental Science › Pollution › Heavy metals in environment
- Social Sciences › Decision Sciences › Statistics, Probability and Uncertainty › scientometrics and bibliometrics research
- Physical Sciences › Environmental Science › Water Science and Technology › Environmental and Analytical Chemistry Studies
- Keywords
- hyperaccumulator plants, phytoremediation, potentially toxic elements, soil contamination, heavy metals, metalloids, research trends, international cooperation, knowledge gaps
About these checks
Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.
Statistics and arithmetic are recomputed, not judged.
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