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Ge H, Chen C, Li S, Guo X, Zhang J, Yang P, Xu H, Zhang J, Wu Z. Photo-induced protonation assisted nano primary battery for highly efficient immobilization of diverse heavy metal ions. JOURNAL OF HAZARDOUS MATERIALS 2024; 476:135066. [PMID: 38943880 DOI: 10.1016/j.jhazmat.2024.135066] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/14/2024] [Revised: 06/21/2024] [Accepted: 06/27/2024] [Indexed: 07/01/2024]
Abstract
Highly-stable heavy metal ions (HMIs) appear long-term damage, while the existing remediation strategies struggle to effectively remove a variety of oppositely charged HMIs without releasing toxic substances. Here we construct an iron-copper primary battery-based nanocomposite, with photo-induced protonation effect, for effectively consolidating broad-spectrum HMIs. In FCPBN, Fe/Cu cell acts as the reaction impetus, and functional graphene oxide modified by carboxyl and UV-induced protonated 2-nitrobenzaldehyde serves as an auxiliary platform. Due to the groups and built-in electric fields under UV stimuli, FCPBN exhibits excellent affinity for ions, with a maximum adsorption rate constant of 974.26 g∙mg-1∙min-1 and facilitated electrons transfer, assisting to reduce 9 HMIs including Cr2O72-, AsO2-, Cd2+ in water from 0.03 to 3.89 ppb. The cost-efficiency, stability and collectability of the FCPBN during remediation, and the beneficial effects on polluted soil and the beings further demonstrate the splendid remediation performance without secondary pollution. This work is expected to remove multi-HMIs thoroughly and sustainably, which tackles an environmental application challenge.
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Affiliation(s)
- Hongjian Ge
- Key Laboratory of High Magnetic Field and Ion Beam Physical Biology, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei 230031, People's Republic of China; University of Science and Technology of China, Hefei 230026, People's Republic of China
| | - Chaowen Chen
- University of Science and Technology of China, Hefei 230026, People's Republic of China.
| | - Sijia Li
- Key Laboratory of High Magnetic Field and Ion Beam Physical Biology, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei 230031, People's Republic of China; University of Science and Technology of China, Hefei 230026, People's Republic of China
| | - Xinyue Guo
- Key Laboratory of High Magnetic Field and Ion Beam Physical Biology, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei 230031, People's Republic of China; University of Science and Technology of China, Hefei 230026, People's Republic of China
| | - Jing Zhang
- National & Local Joint Engineering Research Center for Mineral Salt Deep Utilization, Huaiyin Institute of Technology, Huaian 223003, People's Republic of China
| | - Pengqi Yang
- Key Laboratory of High Magnetic Field and Ion Beam Physical Biology, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei 230031, People's Republic of China; Key Laboratory of Environmental Toxicology and Pollution Control Technology of Anhui Province, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei 230031
| | - Huan Xu
- Key Laboratory of High Magnetic Field and Ion Beam Physical Biology, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei 230031, People's Republic of China; Key Laboratory of Environmental Toxicology and Pollution Control Technology of Anhui Province, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei 230031
| | - Jia Zhang
- Key Laboratory of High Magnetic Field and Ion Beam Physical Biology, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei 230031, People's Republic of China; University of Science and Technology of China, Hefei 230026, People's Republic of China; Key Laboratory of Environmental Toxicology and Pollution Control Technology of Anhui Province, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei 230031.
| | - Zhengyan Wu
- Key Laboratory of High Magnetic Field and Ion Beam Physical Biology, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei 230031, People's Republic of China; University of Science and Technology of China, Hefei 230026, People's Republic of China; Key Laboratory of Environmental Toxicology and Pollution Control Technology of Anhui Province, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei 230031.
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2
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Lu Y, Nie L, Guo X, Pan T, Chen R, Liu X, Li X, Li T, Liu F. Rapid assessment of heavy metal accumulation capability of Sedum alfredii using hyperspectral imaging and deep learning. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2024; 282:116704. [PMID: 38996646 DOI: 10.1016/j.ecoenv.2024.116704] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/17/2024] [Revised: 06/14/2024] [Accepted: 07/06/2024] [Indexed: 07/14/2024]
Abstract
Hyperaccumulators are the material basis and key to the phytoremediation of heavy metal contaminated soils. Conventional methods for screening hyperaccumulators are highly dependent on the time- and labor-consuming sampling and chemical analysis. In this study, a novel spectral approach assisted with multi-task deep learning was proposed to streamline accumulating ecotype screening, heavy metal stress discrimination, and heavy metals quantification in plants. The significant Cd/Zn co-hyperaccumulator Sedum alfredii and its non-accumulating ecotype were stressed by Cd, Zn, and Pb. Spectral images of leaves were rapidly acquired by hyperspectral imaging. The self-designed deep learning architecture was composed of a shallow network (ENet) for accumulating ecotype identification, and a multi-task network (HMNet) for heavy metal stress type and accumulation prediction simultaneously. To further assess the robustness of the networks, they were compared with conventional machine learning models (i.e., partial least squares (PLS) and support vector machine (SVM)) on a series of evaluation metrics of classification, multi-label classification, and regression. S. alfredii with heavy metals accumulation capability was identified by ENet with 100 % accuracy. HMNet reduced overfitting and outperformed machine learning models with the average exact match ratio (EMR) of heavy metal stress discrimination increased by 7.46 %, and residual prediction deviations (RPD) of heavy metal concentrations prediction increased by 53.59 %. The method succeeded in rapidly and accurately discriminating heavy metal stress with EMRs over 91 % and accuracies over 96 %, and in predicting heavy metals accumulation with an average RPD of 3.29 for Zn, 2.57 for Cd, and 2.53 for Pb, indicating the satisfactory practicability and potential for sensing heavy metals accumulation. This study provides a relatively novel spectral method to facilitate hyperaccumulator screening and heavy metals accumulation prediction in the phytoremediation process.
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Affiliation(s)
- Yi Lu
- College of Biosystems Engineering and Food Science, Zhejiang University, Hangzhou 310058, China
| | - Linjie Nie
- College of Biosystems Engineering and Food Science, Zhejiang University, Hangzhou 310058, China
| | - Xinyu Guo
- Ministry of Education Key Laboratory of Environmental Remediation and Ecological Health, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou 310058, China
| | - Tiantian Pan
- College of Biosystems Engineering and Food Science, Zhejiang University, Hangzhou 310058, China
| | - Rongqin Chen
- College of Biosystems Engineering and Food Science, Zhejiang University, Hangzhou 310058, China
| | - Xunyue Liu
- College of Advanced Agricultural Sciences, Zhejiang A & F University, Hangzhou 311300, China
| | - Xiaolong Li
- College of Biosystems Engineering and Food Science, Zhejiang University, Hangzhou 310058, China
| | - Tingqiang Li
- Ministry of Education Key Laboratory of Environmental Remediation and Ecological Health, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou 310058, China
| | - Fei Liu
- College of Biosystems Engineering and Food Science, Zhejiang University, Hangzhou 310058, China; Key Laboratory of Spectroscopy Sensing, Ministry of Agriculture and Rural Affairs, Hangzhou 310058, China.
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3
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Peroni P, Liu Q, Lizarazu WZ, Xue S, Yi Z, Von Cossel M, Mastroberardino R, Papazoglou EG, Monti A, Iqbal Y. Biostimulant and Arbuscular Mycorrhizae Application on Four Major Biomass Crops as the Base of Phytomanagement Strategies in Metal-Contaminated Soils. PLANTS (BASEL, SWITZERLAND) 2024; 13:1866. [PMID: 38999706 PMCID: PMC11244479 DOI: 10.3390/plants13131866] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/24/2024] [Revised: 06/25/2024] [Accepted: 07/03/2024] [Indexed: 07/14/2024]
Abstract
Using contaminated land to grow lignocellulosic crops can deliver biomass and, in the long term, improve soil quality. Biostimulants and microorganisms are nowadays an innovative approach to define appropriate phytomanagement strategies to promote plant growth and metal uptake. This study evaluated biostimulants and mycorrhizae application on biomass production and phytoextraction potential of four lignocellulosic crops grown under two metal-contaminated soils. Two greenhouse pot trials were setup to evaluate two annual species (sorghum, hemp) in Italy and two perennial ones (miscanthus, switchgrass) in China, under mycorrhizae (M), root (B2) and foliar (B1) biostimulants treatments, based on humic substances and protein hydrolysates, respectively, applied both alone and in combination (MB1, MB2). MB2 increased the shoot dry weight (DW) yield in hemp (1.9 times more), sorghum (3.6 times more) and miscanthus (tripled) with additional positive effects on sorghum and miscanthus Zn and Cd accumulation, respectively, but no effects on hemp metal accumulation. No treatment promoted switchgrass shoot DW, but M enhanced Cd and Cr shoot concentrations (+84%, 1.6 times more, respectively) and the phytoextraction efficiency. Root biostimulants and mycorrhizae were demonstrated to be more efficient inputs than foliar biostimulants to enhance plant development and productivity in order to design effective phytomanagement strategies in metal-contaminated soil.
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Affiliation(s)
- Pietro Peroni
- Department of Agricultural and Food Sciences, University of Bologna, 40127 Bologna, Italy; (P.P.); (R.M.); (A.M.)
| | - Qiao Liu
- College of Bioscience and Biotechnology, Hunan Agricultural University, Changsha 410128, China; (Q.L.); (S.X.); (Z.Y.)
| | - Walter Zegada Lizarazu
- Department of Agricultural and Food Sciences, University of Bologna, 40127 Bologna, Italy; (P.P.); (R.M.); (A.M.)
| | - Shuai Xue
- College of Bioscience and Biotechnology, Hunan Agricultural University, Changsha 410128, China; (Q.L.); (S.X.); (Z.Y.)
| | - Zili Yi
- College of Bioscience and Biotechnology, Hunan Agricultural University, Changsha 410128, China; (Q.L.); (S.X.); (Z.Y.)
| | - Moritz Von Cossel
- Department of Biobased Resources in the Bioeconomy (340b), Institute of Crop Science, University of Hohenheim, Fruwirthstr 23, 70599 Stuttgart, Germany
| | - Rossella Mastroberardino
- Department of Agricultural and Food Sciences, University of Bologna, 40127 Bologna, Italy; (P.P.); (R.M.); (A.M.)
| | - Eleni G. Papazoglou
- Department of Crop Science, Agricultural University of Athens, 11855 Athens, Greece;
| | - Andrea Monti
- Department of Agricultural and Food Sciences, University of Bologna, 40127 Bologna, Italy; (P.P.); (R.M.); (A.M.)
| | - Yasir Iqbal
- College of Bioscience and Biotechnology, Hunan Agricultural University, Changsha 410128, China; (Q.L.); (S.X.); (Z.Y.)
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Wei X, Geng M, Yuan J, Zhan J, Liu L, Chen Y, Wang Y, Qin W, Duan H, Zhao H, Li F, Ge X. GhRCD1 promotes cotton tolerance to cadmium by regulating the GhbHLH12-GhMYB44-GhHMA1 transcriptional cascade. PLANT BIOTECHNOLOGY JOURNAL 2024; 22:1777-1796. [PMID: 38348566 PMCID: PMC11182589 DOI: 10.1111/pbi.14301] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/01/2023] [Revised: 01/10/2024] [Accepted: 01/16/2024] [Indexed: 06/19/2024]
Abstract
Heavy metal pollution poses a significant risk to human health and wreaks havoc on agricultural productivity. Phytoremediation, a plant-based, environmentally benign, and cost-effective method, is employed to remove heavy metals from contaminated soil, particularly in agricultural or heavy metal-sensitive lands. However, the phytoremediation capacity of various plant species and germplasm resources display significant genetic diversity, and the mechanisms underlying these differences remain hitherto obscure. Given its potential benefits, genetic improvement of plants is essential for enhancing their uptake of heavy metals, tolerance to harmful levels, as well as overall growth and development in contaminated soil. In this study, we uncover a molecular cascade that regulates cadmium (Cd2+) tolerance in cotton, involving GhRCD1, GhbHLH12, GhMYB44, and GhHMA1. We identified a Cd2+-sensitive cotton T-DNA insertion mutant with disrupted GhRCD1 expression. Genetic knockout of GhRCD1 by CRISPR/Cas9 technology resulted in reduced Cd2+ tolerance in cotton seedlings, while GhRCD1 overexpression enhanced Cd2+ tolerance. Through molecular interaction studies, we demonstrated that, in response to Cd2+ presence, GhRCD1 directly interacts with GhbHLH12. This interaction activates GhMYB44, which subsequently activates a heavy metal transporter, GhHMA1, by directly binding to a G-box cis-element in its promoter. These findings provide critical insights into a novel GhRCD1-GhbHLH12-GhMYB44-GhHMA1 regulatory module responsible for Cd2+ tolerance in cotton. Furthermore, our study paves the way for the development of elite Cd2+-tolerant cultivars by elucidating the molecular mechanisms governing the genetic control of Cd2+ tolerance in cotton.
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Affiliation(s)
- Xi Wei
- Research Base of State Key Laboratory of Cotton BiologyHenan Normal UniversityXinxiangChina
- State Key Laboratory of Cotton BiologyInstitute of Cotton Research, Chinese Academy of Agricultural SciencesAnyangChina
| | - Menghan Geng
- Research Base of State Key Laboratory of Cotton BiologyHenan Normal UniversityXinxiangChina
- State Key Laboratory of Cotton BiologyInstitute of Cotton Research, Chinese Academy of Agricultural SciencesAnyangChina
| | - Jiachen Yuan
- Zhengzhou Research Base, State Key Laboratory of Cotton BiologyZhengzhou UniversityZhengzhouChina
| | - Jingjing Zhan
- State Key Laboratory of Cotton BiologyInstitute of Cotton Research, Chinese Academy of Agricultural SciencesAnyangChina
| | - Lisen Liu
- State Key Laboratory of Cotton BiologyInstitute of Cotton Research, Chinese Academy of Agricultural SciencesAnyangChina
| | - Yanli Chen
- State Key Laboratory of Cotton BiologyInstitute of Cotton Research, Chinese Academy of Agricultural SciencesAnyangChina
| | - Ye Wang
- State Key Laboratory of Cotton BiologyInstitute of Cotton Research, Chinese Academy of Agricultural SciencesAnyangChina
| | - Wenqiang Qin
- State Key Laboratory of Cotton BiologyInstitute of Cotton Research, Chinese Academy of Agricultural SciencesAnyangChina
| | - Hongying Duan
- Research Base of State Key Laboratory of Cotton BiologyHenan Normal UniversityXinxiangChina
| | - Hang Zhao
- State Key Laboratory of Cotton BiologyInstitute of Cotton Research, Chinese Academy of Agricultural SciencesAnyangChina
- Zhengzhou Research Base, State Key Laboratory of Cotton BiologyZhengzhou UniversityZhengzhouChina
- College of Life SciencesQufu Normal UniversityQufuChina
| | - Fuguang Li
- Research Base of State Key Laboratory of Cotton BiologyHenan Normal UniversityXinxiangChina
- State Key Laboratory of Cotton BiologyInstitute of Cotton Research, Chinese Academy of Agricultural SciencesAnyangChina
- Zhengzhou Research Base, State Key Laboratory of Cotton BiologyZhengzhou UniversityZhengzhouChina
- Western Agricultural Research Center, Chinese Academy of Agricultural SciencesChangjiXinjiangChina
| | - Xiaoyang Ge
- Research Base of State Key Laboratory of Cotton BiologyHenan Normal UniversityXinxiangChina
- State Key Laboratory of Cotton BiologyInstitute of Cotton Research, Chinese Academy of Agricultural SciencesAnyangChina
- Zhengzhou Research Base, State Key Laboratory of Cotton BiologyZhengzhou UniversityZhengzhouChina
- Western Agricultural Research Center, Chinese Academy of Agricultural SciencesChangjiXinjiangChina
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5
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Zhang Q, Wang L, Zhu J, Liu Q, Zhao F, Liao X. Screening of low-Cd-accumulating and Cd-remediating oilseed rape varieties using a newly indicator system for risk management of Cd-contaminated agricultural land. CHEMOSPHERE 2024; 358:142148. [PMID: 38679170 DOI: 10.1016/j.chemosphere.2024.142148] [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: 02/09/2024] [Revised: 04/23/2024] [Accepted: 04/24/2024] [Indexed: 05/01/2024]
Abstract
Although oilseed rape is frequently used as an alternative planting crop in the phytoremediation of cadmium (Cd)-contaminated agricultural land, methods for screening excellent oilseed rape varieties in this regard are inadequate. Herein, we developed a screening method that incorporates Cd accumulation, distribution, and removal, economic output, adaptability to Cd-contaminated agricultural land, and trace element variation. A Cd-adaptability index (Cd-AI) based on 10 agronomic traits was used to measure the adaptability of varieties to Cd-contaminated agricultural land. Moreover, to simplify the evaluation of adaptability, yield, biomass, and pod number with high weightings were selected to construct a discriminant function for Cd-contaminated agricultural land adaptability (correctly classified 94.20%). In a 2 year field trial, we evaluated 225 oilseed rape varieties, among which we identified two promising low-Cd-accumulating and two Cd-remediating varieties. For the low-Cd-accumulating varieties (HuYou17 and DeXingYou558), we obtained grain bioaccumulation factor (BAF) values of 0.07 and 0.08, BAFsoil-stalk values of <1, and economic outputs of RMB 25,054 and 32,292 yuan hm-2, respectively. Similarly, the Cd-remediating varieties (ZaoZa8 and YuYou61) were characterized by BAFsoil-stalk values of 4.65 and 3.61, BAFsoil-grain values of 0.16 and 0.16, Cd removals of 69.02 and 58.25 g hm-2, and economic outputs of RMB 31,189 and 24,962 yuan hm-2, respectively. Compared with the control variety, we detected lower uptakes of multiple trace elements (3-43%) in the low-Cd-accumulating varieties, whereas the Cd-remediating varieties were characterized by 15.40% and 8.30% increases in the accumulation of magnesium and zinc, respectively. Our findings augment the evaluation indices used for evaluating oilseed rape varieties and provide valuable insights from the perspectives of varietal screening and promotional application. The effective varieties identified have application potential for safe production and the remediation of agricultural land without interrupting annual agricultural production, and provide an economically sustainable approach for the utilization of Cd-contaminated agricultural land.
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Affiliation(s)
- Qingying Zhang
- Key Laboratory of Land Surface Pattern and Simulation, Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences (CAS), Beijing, 100101, China; State Environmental Protection Key Laboratory of Land-Ocean Coordinated Control and Systematic Regulation Technology, Shandong Academy for Environmental Planning, Shandong, 250101, China
| | - Liang Wang
- Key Laboratory of Land Surface Pattern and Simulation, Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences (CAS), Beijing, 100101, China; Beijing Key Laboratory of Environmental Damage Assessment and Remediation, Beijing, 100101, China
| | - Jie Zhu
- Hengyang Academy of Agricultural Sciences, Hengyang, 421000, China
| | - Qiqing Liu
- Key Laboratory of Land Surface Pattern and Simulation, Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences (CAS), Beijing, 100101, China; Beijing Key Laboratory of Environmental Damage Assessment and Remediation, Beijing, 100101, China
| | - Fenghua Zhao
- Key Laboratory of Land Surface Pattern and Simulation, Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences (CAS), Beijing, 100101, China
| | - Xiaoyong Liao
- Key Laboratory of Land Surface Pattern and Simulation, Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences (CAS), Beijing, 100101, China; Beijing Key Laboratory of Environmental Damage Assessment and Remediation, Beijing, 100101, China.
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6
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Rabbani M, Taqi Rabbani M, Muthoni F, Sun Y, Vahidi E. Advancing phytomining: Harnessing plant potential for sustainable rare earth element extraction. BIORESOURCE TECHNOLOGY 2024; 401:130751. [PMID: 38685517 DOI: 10.1016/j.biortech.2024.130751] [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: 12/17/2023] [Revised: 04/26/2024] [Accepted: 04/26/2024] [Indexed: 05/02/2024]
Abstract
Rare earth elements (REEs) are pivotal for advanced technologies, driving a surge in global demand. Import dependency on clean energy minerals raises concerns about supply chain vulnerabilities and geopolitical risks. Conventional REEs productionis resource-intensive and environmentally harmful, necessitating a sustainable supply approach. Phytomining (agromining) utilizes plants for eco-friendly REE extraction, contributing to the circular economy and exploiting untapped metal resources in enriched soils. Critical parameters like soil pH, Casparian strip, and REE valence influence soil and plant uptake bioavailability. Hyperaccumulator species efficiently accumulate REEs, serving as energy resources. Despite a lack of a comprehensive database, phytomining exhibits lower environmental impacts due to minimal chemical usage and CO2 absorption. This review proposes phytomining as a system for REEs extraction, remediating contaminated areas, and rehabilitating abandoned mines. The phytomining of REEs offers a promising avenue for sustainable REEs extraction but requires technological advancements to realize its full potential.
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Affiliation(s)
- Mohsen Rabbani
- Department of Mining and Metallurgical Engineering, Mackay School of Earth Sciences and Engineering, University of Nevada, Reno, USA
| | | | - Frida Muthoni
- Department of Mining and Metallurgical Engineering, Mackay School of Earth Sciences and Engineering, University of Nevada, Reno, USA
| | - Ying Sun
- The Plant Molecular and Cellular Biology Laboratory, The Salk Institute for Biological Studies, La Jolla, CA 92037, USA
| | - Ehsan Vahidi
- Department of Mining and Metallurgical Engineering, Mackay School of Earth Sciences and Engineering, University of Nevada, Reno, USA.
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Mahtab S, Nazir A, Shafiq M. Coupling of phycoremediation and phytoremediation technologies to treat tannery effluents with rainwater dilutions. INTERNATIONAL JOURNAL OF PHYTOREMEDIATION 2024; 26:1667-1675. [PMID: 38712911 DOI: 10.1080/15226514.2024.2346903] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/08/2024]
Abstract
From tannery effluent (TE) severely polluted with heavy metals (HMs viz., Cr, Cu, Cd, and Pb), hydrophytic phytoextraction remains a challenge as transplanted plants succumb to death on facing acclimatization shock. Current study was aimed at diluting TE with harvested rainwater (HR) for improving HM phytoextraction potential of Phragmites australis (a hydrophyte) assisted with phycoremediation of coupled algae (viz., Oedogonium sp. and Pithophora sp.). The TE:HR dilutions (TEDs) 0, 25, 50, 75, and 100% (v/v) included three sets: set-1 included algae only, set-2 included P. australis only and set-3 included P. australis coupled with combined algal inoculum. Results showed that P. australis assisted with HR dilution and combined algal inoculum showed significantly greater uptake of HMs from each of the TEDs than respective control treatments. Combined algal application in the TEDs proved phycoremediation assistants based on their bioaccumulation factor (BF). The dry biomass of P. australis in TEDs applied with phycoremediation assistants remained greater than uninoculated ones. Overall, HM translocation factor (TF) of P. australis for Cr, Cu, Cd, and Pb remained ≥ 1. The study concludes that HM phytoextraction is substantially increased when concentrated TE is diluted with HR and assisted with phycoremediation of HM tolerant algae.
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Affiliation(s)
- Saneela Mahtab
- Environmental Biotechnology Laboratory (F4), Institute of Botany, University of the Punjab, Lahore, Pakistan
| | - Aisha Nazir
- Environmental Biotechnology Laboratory (F4), Institute of Botany, University of the Punjab, Lahore, Pakistan
| | - Muhammad Shafiq
- Environmental Biotechnology Laboratory (F4), Institute of Botany, University of the Punjab, Lahore, Pakistan
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8
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Gong W, Li Q, Tu Y, Yang D, Lai Y, Tang W, Mao W, Feng Y, Liu L, Ji X, Li H. Diversity and functional traits of seed endophytes of Dysphania ambrosioides from heavy metal contaminated and non-contaminated areas. World J Microbiol Biotechnol 2024; 40:191. [PMID: 38702442 DOI: 10.1007/s11274-024-04003-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2024] [Accepted: 04/24/2024] [Indexed: 05/06/2024]
Abstract
Seed endophytes played a crucial role on host plants stress tolerance and heavy metal (HM) accumulation. Dysphania ambrosioides is a hyperaccumulator and showed strong tolerance and extraordinary accumulation capacities of multiple HMs. However, little is known about its seed endophytes response to field HM-contamination, and its role on host plants HM tolerance and accumulation. In this study, the seed endophytic community of D. ambrosioides from HM-contaminated area (H) and non-contaminated area (N) were investigated by both culture-dependent and independent methods. Moreover, Cd tolerance and the plant growth promoting (PGP) traits of dominant endophytes from site H and N were evaluated. The results showed that in both studies, HM-contamination reduced the diversity and richness of endophytic community and changed the most dominant endophyte, but increased resistant species abundance. By functional trait assessments, a great number of dominant endophytes displayed multiple PGP traits and Cd tolerance. Interestingly, soil HM-contamination significantly increased the percentage of Cd tolerance isolates of Agrobacterium and Epicoccum, but significantly decreased the ration of Agrobacterium with the siderophore production ability. However, the other PGP traits of isolates from site H and N showed no significant difference. Therefore, it was suggested that D. ambrosioides might improve its HM tolerance and accumulation through harboring more HM-resistant endophytes rather than PGP endophytes, but to prove this, more work need to be conducted in the future.
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Affiliation(s)
- Weijun Gong
- Life Science and Technology & Medical Faculty, Kunming University of Science and Technology, Kunming, 650500, China
| | - Qiaohong Li
- The First People's Hospital of Yunnan Province, Kunming, 650500, China
| | - Yungui Tu
- The First People's Hospital of Anning, Kunming, 650300, China
| | - Dian Yang
- Life Science and Technology & Medical Faculty, Kunming University of Science and Technology, Kunming, 650500, China
| | - Yibin Lai
- Life Science and Technology & Medical Faculty, Kunming University of Science and Technology, Kunming, 650500, China
| | - Wenting Tang
- Life Science and Technology & Medical Faculty, Kunming University of Science and Technology, Kunming, 650500, China
| | - Wenqin Mao
- Life Science and Technology & Medical Faculty, Kunming University of Science and Technology, Kunming, 650500, China
| | - Yue Feng
- The First People's Hospital of Anning, Kunming, 650300, China
| | - Li Liu
- Life Science and Technology & Medical Faculty, Kunming University of Science and Technology, Kunming, 650500, China
| | - Xiuling Ji
- Life Science and Technology & Medical Faculty, Kunming University of Science and Technology, Kunming, 650500, China
| | - Haiyan Li
- Life Science and Technology & Medical Faculty, Kunming University of Science and Technology, Kunming, 650500, China.
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9
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Sun W, He Y, Deng Y, Hu Y, Cao M, Luo J. Interaction effects of magnetized water irrigation and wounding stress on Cd phytoremediation effect of Arabidopsis halleri. INTERNATIONAL JOURNAL OF PHYTOREMEDIATION 2024; 26:1016-1026. [PMID: 38037794 DOI: 10.1080/15226514.2023.2288896] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/02/2023]
Abstract
In this study, the phytoremediation efficiency of Arabidopsis halleri L. in response to mechanical injury were compared between those irrigated with magnetized water and those irrigated with normal water. Under normal irrigation treatment, wounding stress increased malondialdehyde (MDA) concentrations and hydrogen peroxide (H2O2) levels in A. halleri leaves significantly, by 46.7-86.1% and 39.4-77.4%, respectively, relative to those in the intact tissues. In addition, wounding stresses decreased the content of Cd in leaves by 26.8-52.2%, relative to the control, indicating that oxidative damage in plant tissues was induced by mechanical injury, rather than Cd accumulation. There were no significant differences in MDA and H2O2 between A. halleri irrigated with magnetized water and with normal water under wounding conditions; however, the activities of catalase (CAT), ascorbate peroxidase (APX), and superoxide dismutase (SOD) in the leaves of plants treated with magnetized water were significantly increased by 25.1-56.7%, 47.3-183.6%, and 44.2-109.4%, respectively. Notably, under the magnetic field, the phytoremediation effect of 30% wounded A. halleri nearly returned to normal levels. We find that irrigation with magnetized water is an economical pathway to improve the tolerance of A. halleri to inevitable mechanical injury and may recover its phytoremediation effect.
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Affiliation(s)
- Weiheng Sun
- Hubei Geological & Mining Exploration Co., Ltd, Wuhan, China
| | - Yue He
- College of Resources and Environment, Yangtze University, Wuhan, China
| | - Yuping Deng
- College of Resources and Environment, Yangtze University, Wuhan, China
| | - Yuwei Hu
- College of Resources and Environment, Yangtze University, Wuhan, China
| | - Min Cao
- University of Leicester, Leicester, UK
| | - Jie Luo
- College of Resources and Environment, Yangtze University, Wuhan, China
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10
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Wang Y, Jiang Y, Xu Y, Tan F. Effects of uptake pathways on the accumulation, translocation, and metabolism of OPEs in rice: An emphasis on foliar uptake. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 918:170562. [PMID: 38307293 DOI: 10.1016/j.scitotenv.2024.170562] [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: 12/19/2023] [Revised: 01/27/2024] [Accepted: 01/28/2024] [Indexed: 02/04/2024]
Abstract
The often-overlooked importance of foliar absorption on the plant uptake of organic pollutants was investigated by an exposure chamber test. Rice seedlings were exposed to organophosphate esters (OPEs) through 8 scenarios arranged from 3 major uptake pathways: root uptake via solution, foliar uptake via gas, and foliar uptake via particles, to identify the contributions of these 3 uptake pathways and their influences on the translocation and metabolism of OPEs in rice. The concentration of OPEs in rice tissues showed an "additive effect" with the increase of exposure pathways. OPEs in rice shoots mainly originated from foliar uptake through particle (29.6 %-63.5 %) and gaseous (28.5 %-49.4 %) absorptions rather than root uptake (7.86 %-24.2 %) under the exposure condition. In comparison with stomal absorption, wax layer penetration was the main pathway for most OPEs to enter into leaves, especially for those compounds with high octanol-air partition coefficients. Although the subcellular distributions of OPEs in the rice tissues of the foliar exposure were slightly different from those of the root exposure, hydrophobic OPEs were mainly stored in the cell wall with hydrophilic OPEs mainly in the cytosol. The translocation of OPEs from the exposed tissue to the unexposed tissue were significantly negatively correlated with their octanol-water partition coefficients, but their basipetal translocation were limited. The result suggested that the translocation of OPEs within rice is prioritized over their degradation. This study deepens our understanding of the processes behind OPE uptake by rice and highlights the importance of foliar uptake, especially for those via particle absorption.
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Affiliation(s)
- Yan Wang
- Key Laboratory of Industrial Ecology and Environmental Engineering (MOE), School of Environmental Science and Technology, Dalian University of Technology, Dalian 116024, China.
| | - Yingying Jiang
- Key Laboratory of Industrial Ecology and Environmental Engineering (MOE), School of Environmental Science and Technology, Dalian University of Technology, Dalian 116024, China
| | - Yue Xu
- State Key Laboratory of Environmental Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences, Guiyang 550081, China
| | - Feng Tan
- Key Laboratory of Industrial Ecology and Environmental Engineering (MOE), School of Environmental Science and Technology, Dalian University of Technology, Dalian 116024, China
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11
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Dong S, Li L, Chen W, Chen Z, Wang Y, Wang S. Evaluation of heavy metal speciation distribution in soil and the accumulation characteristics in wild plants: A study on naturally aged abandoned farmland adjacent to tailings. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 917:170594. [PMID: 38309366 DOI: 10.1016/j.scitotenv.2024.170594] [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: 11/24/2023] [Revised: 01/20/2024] [Accepted: 01/29/2024] [Indexed: 02/05/2024]
Abstract
Heavy metal composite pollution is widespread in the surrounding environment of tailings ponds in arid and semi-arid regions, leading to the abandonment of substantial agricultural land. This study investigates the speciation distribution and plant accumulation characteristics of heavy metals in abandoned farmland with different durations of natural aging. The aim is to comprehend the local heavy metal behavior pattern in the soil-plant system and offer insights for environmental remediation. Our findings reveal that Cd stands out as the primary heavy metal pollutant in this area. The mobility ranking of heavy metals is Cd > Pb > Zn > Cu, with Cd and Pb mobility decreasing along the basin. Notably, active Pb exhibits a higher affinity for soil binding compared to other metals. The predominant plant species in the region are primarily small shrubs, herbaceous plants, and semi-shrubs that demonstrate tolerance to drought and salt. Most plant samples showed elevated levels of Cd, Pb, and Zn, surpassing the maximum tolerance levels for dietary minerals in livestock. This elevated metal content poses potential threats to the health of local livestock and wildlife, yet it is also considered a potential for phytoremediation. Selected dominant plant species from the current study include Kalidium foliatum & gracile which shows potential as a Cd accumulator and indicator. Neotrinia splendens and Reaumuria songarica demonstrate potential as Cd excluders, with the latter exhibiting higher tolerance to Cd (62.9 mg/kg). Additionally, our observations indicate that different plant parts exhibit distinct responses to heavy metals, and Zn synergistically influences the aerial part accumulation of Cd. This study holds significant importance in understanding the complex behavior patterns of multi-metal pollutants in the natural environment. The identification of native plants with remediation potential is valuable for phytoremediation of environment pollution in mining area.
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Affiliation(s)
- Suhang Dong
- Technology Research Center for Pollution Control and Remediation of Northwest Soil and Groundwater, College of Earth and Environmental Sciences, Lanzhou University, Lanzhou 730000, China
| | - Longrui Li
- Technology Research Center for Pollution Control and Remediation of Northwest Soil and Groundwater, College of Earth and Environmental Sciences, Lanzhou University, Lanzhou 730000, China
| | - Weijie Chen
- Technology Research Center for Pollution Control and Remediation of Northwest Soil and Groundwater, College of Earth and Environmental Sciences, Lanzhou University, Lanzhou 730000, China
| | - Zhaoming Chen
- Technology Research Center for Pollution Control and Remediation of Northwest Soil and Groundwater, College of Earth and Environmental Sciences, Lanzhou University, Lanzhou 730000, China
| | - Yufan Wang
- Technology Research Center for Pollution Control and Remediation of Northwest Soil and Groundwater, College of Earth and Environmental Sciences, Lanzhou University, Lanzhou 730000, China
| | - Shengli Wang
- Technology Research Center for Pollution Control and Remediation of Northwest Soil and Groundwater, College of Earth and Environmental Sciences, Lanzhou University, Lanzhou 730000, China.
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12
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Luo T, Sheng Z, Chen M, Qin M, Tu Y, Khan MN, Khan Z, Liu L, Wang B, Kuai J, Wang J, Xu Z, Zhou G. Phytoremediation of copper-contaminated soils by rapeseed (Brassica napus L.) and underlying molecular mechanisms for copper absorption and sequestration. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2024; 273:116123. [PMID: 38394754 DOI: 10.1016/j.ecoenv.2024.116123] [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: 10/05/2023] [Revised: 02/01/2024] [Accepted: 02/18/2024] [Indexed: 02/25/2024]
Abstract
High levels of copper released in the soil, mainly from anthropogenic activity, can be hazardous to plants, animals, and humans. The present research aimed to estimate the suitability and effectiveness of rapeseed (Brassica napus L.) as a possible soil remediation option and to uncover underlying adaptive mechanisms A pot experiment was conducted to explore the effect of copper stress on agronomic and yield traits for 32 rapeseed genotypes. The copper-tolerant genotype H2009 and copper-sensitive genotype ZYZ16 were selected for further physiological, metabolomic, and transcriptomic analyses. The results exhibited a significant genotypic variation in copper stress tolerance in rapeseed. Specifically, the ratio of seed yield under copper stress to control ranged from 0.29 to 0.74. Furthermore, the proline content and antioxidant enzymatic activities in the roots were greater than those in the shoots. The accumulated copper in the roots accounted for about 50% of the total amount absorbed by plants; thus, the genotypes possessing high root volumes can be used for rhizofiltration to uptake and sequester copper. Additionally, the pectin and hemicellulose contents were significantly increased by 15.6% and 162%, respectively, under copper stress for the copper-tolerant genotype, allowing for greater sequestration of copper ions in the cell wall and lower oxidative stress. Comparative analysis of transcriptomes and metabolomes revealed that excessive copper enhanced the up-regulation of functional genes or metabolites related to cell wall binding, copper transportation, and chelation in the copper-tolerant genotype. Our results suggest that copper-tolerant rapeseed can thrive in heavily copper-polluted soils with a 5.85% remediation efficiency as well as produce seed and vegetable oil without exceeding food quality standards for the industry. This multi-omics comparison study provides insights into breeding copper-tolerant genotypes that can be used for the phytoremediation of heavy metal-polluted soils.
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Affiliation(s)
- Tao Luo
- MOA Key Laboratory of Crop Ecophysiology and Farming System in the Middle Reaches of the Yangtze River, College of Plant Science and Technology, Huazhong Agricultural University, Wuhan, Hubei 430070, China
| | - Ziwei Sheng
- MOA Key Laboratory of Crop Ecophysiology and Farming System in the Middle Reaches of the Yangtze River, College of Plant Science and Technology, Huazhong Agricultural University, Wuhan, Hubei 430070, China
| | - Min Chen
- MOA Key Laboratory of Crop Ecophysiology and Farming System in the Middle Reaches of the Yangtze River, College of Plant Science and Technology, Huazhong Agricultural University, Wuhan, Hubei 430070, China
| | - Mengqian Qin
- MOA Key Laboratory of Crop Ecophysiology and Farming System in the Middle Reaches of the Yangtze River, College of Plant Science and Technology, Huazhong Agricultural University, Wuhan, Hubei 430070, China
| | - Yechun Tu
- MOA Key Laboratory of Crop Ecophysiology and Farming System in the Middle Reaches of the Yangtze River, College of Plant Science and Technology, Huazhong Agricultural University, Wuhan, Hubei 430070, China
| | - Mohammad Nauman Khan
- MOA Key Laboratory of Crop Ecophysiology and Farming System in the Middle Reaches of the Yangtze River, College of Plant Science and Technology, Huazhong Agricultural University, Wuhan, Hubei 430070, China
| | - Zaid Khan
- MOA Key Laboratory of Crop Ecophysiology and Farming System in the Middle Reaches of the Yangtze River, College of Plant Science and Technology, Huazhong Agricultural University, Wuhan, Hubei 430070, China
| | - Lijun Liu
- MOA Key Laboratory of Crop Ecophysiology and Farming System in the Middle Reaches of the Yangtze River, College of Plant Science and Technology, Huazhong Agricultural University, Wuhan, Hubei 430070, China
| | - Bo Wang
- MOA Key Laboratory of Crop Ecophysiology and Farming System in the Middle Reaches of the Yangtze River, College of Plant Science and Technology, Huazhong Agricultural University, Wuhan, Hubei 430070, China
| | - Jie Kuai
- MOA Key Laboratory of Crop Ecophysiology and Farming System in the Middle Reaches of the Yangtze River, College of Plant Science and Technology, Huazhong Agricultural University, Wuhan, Hubei 430070, China
| | - Jing Wang
- MOA Key Laboratory of Crop Ecophysiology and Farming System in the Middle Reaches of the Yangtze River, College of Plant Science and Technology, Huazhong Agricultural University, Wuhan, Hubei 430070, China
| | - Zhenghua Xu
- MOA Key Laboratory of Crop Ecophysiology and Farming System in the Middle Reaches of the Yangtze River, College of Plant Science and Technology, Huazhong Agricultural University, Wuhan, Hubei 430070, China.
| | - Guangsheng Zhou
- MOA Key Laboratory of Crop Ecophysiology and Farming System in the Middle Reaches of the Yangtze River, College of Plant Science and Technology, Huazhong Agricultural University, Wuhan, Hubei 430070, China
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13
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Hu L, Tan X, Lu L, Meng X, Li Y, Yao H. DNA-SIP delineates unique microbial communities in the rhizosphere of the hyperaccumulator Sedum alfredii which are beneficial to Cd phytoextraction. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2024; 272:116016. [PMID: 38301580 DOI: 10.1016/j.ecoenv.2024.116016] [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: 04/19/2023] [Revised: 01/11/2024] [Accepted: 01/22/2024] [Indexed: 02/03/2024]
Abstract
Rhizo-microbe recruited by hyperaccumulating plants are crucial for the extraction of metals from contaminated soils. It is important, but difficult, to identify the specific rhizosphere microbes of hyperaccumulators shaped by root exudation. Continuous 13CO2 labeling, microbial DNA-based stable isotope probing (DNA-SIP), and high throughput sequencing were applied to identify those rhizosphere microorganisms using exudates from the Cd hyperaccumulator Sedum alfredii. In contrast to its non-hyperaccumulating ecotype (NAE), the hyperaccumulating ecotype (HAE) of S. alfredii strongly changed the rhizosphere environment and extracted a 5-fold higher concentration of Cd from contaminated soil. Although both HAE and NAE harbored Streptomyces, Massilia, Bacillus, and WPS-2 Uncultured Bacteria with relative abundance of more than 1% in the rhizosphere associated with plant growth and immunity, the HAE rhizosphere specifically recruited Rhodanobacter (2.66%), Nocardioides (1.16%), and Burkholderia (1.01%) through exudates to benefit the extraction of Cd from soil. Different from the bacterial network with weak cooperation in the NAE rhizosphere, a closed-loop bacterial network shaped by exudates was established in the HAE rhizosphere to synergistically resist Cd. This research reveals a specific rhizosphere bacterial community induced by exudates assisted in the extraction of Cd by S. alfredii and provides a new perspective for plant regulation of the rhizo-microbe community beneficial for optimizing phytoremediation.
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Affiliation(s)
- Lanfang Hu
- Key Laboratory of Urban Environment and Health, Ningbo Observation and Research Station, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen 361021, China; Zhejiang Key Laboratory of Urban Environmental Processes and Pollution Control, CAS Haixi Industrial Technology Innovation Center in Beilun, Ningbo 315800, China; College of Resources and Environment, Fujian Agriculture and Forestry University, Fuzhou 350002, China
| | - Xingyan Tan
- Key Laboratory of Urban Environment and Health, Ningbo Observation and Research Station, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen 361021, China; Zhejiang Key Laboratory of Urban Environmental Processes and Pollution Control, CAS Haixi Industrial Technology Innovation Center in Beilun, Ningbo 315800, China
| | - Lingli Lu
- MOE Key Laboratory of Environmental Remediation and Ecological Health, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou 310058, China
| | - Xiangtian Meng
- Key Laboratory of Urban Environment and Health, Ningbo Observation and Research Station, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen 361021, China; Zhejiang Key Laboratory of Urban Environmental Processes and Pollution Control, CAS Haixi Industrial Technology Innovation Center in Beilun, Ningbo 315800, China
| | - Yaying Li
- Key Laboratory of Urban Environment and Health, Ningbo Observation and Research Station, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen 361021, China; Zhejiang Key Laboratory of Urban Environmental Processes and Pollution Control, CAS Haixi Industrial Technology Innovation Center in Beilun, Ningbo 315800, China
| | - Huaiying Yao
- Research Center for Environmental Ecology and Engineering, School of Environmental Ecology and Biological Engineering, Wuhan Institute of Technology, Wuhan 430073, China.
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14
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Wang H, Chen Z, Feng L, Chen Z, Owens G, Chen Z. Uptake and transport mechanisms of rare earth hyperaccumulators: A review. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2024; 351:119998. [PMID: 38169266 DOI: 10.1016/j.jenvman.2023.119998] [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: 04/22/2023] [Revised: 12/18/2023] [Accepted: 12/28/2023] [Indexed: 01/05/2024]
Abstract
Due to their use in a number of advanced electronic technologies, Rare earth elements (REEs) have recently emerged as a key strategic resource for many nations worldwide. The significant increase in demand for REEs has thus greatly increased the mining of these substances, but this industrial-scale expansion of mining activities also poses potential risks to the surrounding environment, flora, fauna, and humans. Hence efficient REE remediation is one potential remediation process involving in situ clean-up of contaminated soil which has gained much attention in recent years, due to its low cost and lack of secondary pollution. However, some crucial aspects of phytoremediation, such as the precise-mechanisms of absorption, transport, and tolerance of REEs by hyperaccumulators -are poorly understood. This review briefly discusses the environmental risks associated with excess REEs, the efficacy of phytoremediation technologies coupled with, appropriate hyperaccumulator species to migrate REEs exposure. While REEs hyperaccumulator species should ideally be large-biomass trees and shrubs suitable for cropping in subtropical regions areas, such species have not yet been found. Specifically, this review focuses on the factors affecting the bioavailability of REEs in plants, where organic acids are critical ligands promoting efficient transport and uptake. Thus the uptake, transport, and binding forms of REEs in the above-ground parts of hyperaccumulators, especially the transporters isolated from the heavy metal transporter families, are discussed in detail. Finally, having summarized the current state of research in this area, this review proceeds to discuss current knowledge gaps and research directions. With a focus on hyperaccumulators, this review serves as a basis for future phytoremediation strategies of rare earth mining-impacted environments and addresses ecosystem/environmental degradation issues resulting from such mining activity.
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Affiliation(s)
- Haiyan Wang
- School of Geographical Sciences, Fujian Normal University, Fuzhou, 350117, Fujian, China; Key Laboratory for Humid Subtropical Eco-geographical Processes of the Ministry of Education, Fujian Normal University, Fuzhou, 350117, Fujian, China
| | - Zhibiao Chen
- School of Geographical Sciences, Fujian Normal University, Fuzhou, 350117, Fujian, China; Key Laboratory for Humid Subtropical Eco-geographical Processes of the Ministry of Education, Fujian Normal University, Fuzhou, 350117, Fujian, China.
| | - Liujun Feng
- School of Geographical Sciences, Fujian Normal University, Fuzhou, 350117, Fujian, China; Key Laboratory for Humid Subtropical Eco-geographical Processes of the Ministry of Education, Fujian Normal University, Fuzhou, 350117, Fujian, China
| | - Zhiqiang Chen
- School of Geographical Sciences, Fujian Normal University, Fuzhou, 350117, Fujian, China; Key Laboratory for Humid Subtropical Eco-geographical Processes of the Ministry of Education, Fujian Normal University, Fuzhou, 350117, Fujian, China
| | - Gary Owens
- Environmental Contaminants Group, Future Industries Institute, University of South Australian, Mawson Lakes, SA, 5095, Australia
| | - Zuliang Chen
- School of Environmental and Resource Sciences, Fujian Normal University, Fuzhou, 350117, Fujian Province, China.
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15
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Yin M, Mi J, Wang X, Xing C, Wan X, Zhang F, Yang H, He F, Hu H, Chen L. Interspecific variations in growth, physiology and Cd accumulation between Populus deltoides and P. × canadensis in response to Cd pollution under two soil types. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2024; 271:115951. [PMID: 38211512 DOI: 10.1016/j.ecoenv.2024.115951] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/27/2023] [Revised: 01/03/2024] [Accepted: 01/05/2024] [Indexed: 01/13/2024]
Abstract
Both acid and alkaline purple soils in China are increasingly affected by Cd contamination. The selection of fast-growing trees suitable for remediating different soil types is urgent, yet there is a severe lack of relevant knowledge. In this study, we conducted a controlled pot experiment to compare the growth, physiology, and Cd accumulation efficiency of two widely recognized poplar species, namely Populus deltoides and P. × canadensis, under Cd contamination (1 mg kg-1) in acid and alkaline purple soils. The objective was to determine which poplar species is best suited for remediating different soil types. Our findings are as follows: (1) the total biomass of both poplars remained largely unaffected by Cd pollution in both soil types. Notably, under Cd pollution, the total biomass of P. deltoides in acid purple soil was 1.53 times greater than that in alkaline purple soil. (2) Cd pollution did not significantly induce oxidative damage in the leaves of either poplar species in both soil types. However, in acid purple soil, Cd contamination led to a 21% increase in NO3- concentration and a 44% increase in NH4+ concentration in P. × canadensis leaves, whereas in alkaline purple soil, it led to a 59% increase in NH4+ concentration in P. deltoides leaves. (3) Cd concentrations in all root orders of P. × canadensis were significantly higher than those in P. deltoides, especially in the first three root orders, under alkaline purple soil. The total Cd accumulation by P. × canadensis in Cd-polluted alkaline purple soil was 2.18 times higher than that in Cd-polluted acid purple soil, a difference not observed in P. deltoides. (4) redundancy analysis indicated that the sequestration effect of higher soil organic matter on Cd availability in acid purple soil was more pronounced than the release effects caused by lower pH. In conclusion, P. × canadensis is better suited for remediating alkaline purple soil due to its higher capacity for Cd uptake, while P. deltoides is more suitable for remediating Cd-contaminated acid purple soil due to its better growth conditions and greater Cd enrichment capability.
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Affiliation(s)
- Man Yin
- College of Forestry, Sichuan Agricultural University, Chengdu 611130, China
| | - Jiaxuan Mi
- College of Forestry, Sichuan Agricultural University, Chengdu 611130, China
| | - Xue Wang
- College of Forestry, Sichuan Agricultural University, Chengdu 611130, China
| | - Cailan Xing
- College of Forestry, Sichuan Agricultural University, Chengdu 611130, China
| | - Xueqin Wan
- College of Forestry, Sichuan Agricultural University, Chengdu 611130, China; National Forestry and Grassland Administration Key Laboratory of Forest Resources Conservation and Ecological Safety on the Upper Reaches of the Yangtze River, Chengdu 611130, China; Forestry Ecological Engineering in the Upper Reaches of Yangtze River Key Laboratory of Sichuan Province, Chengdu 611130, China
| | - Fan Zhang
- College of Landscape Architecture, Sichuan Agricultural University, Chengdu 611130, China
| | - Hanbo Yang
- College of Forestry, Sichuan Agricultural University, Chengdu 611130, China; National Forestry and Grassland Administration Key Laboratory of Forest Resources Conservation and Ecological Safety on the Upper Reaches of the Yangtze River, Chengdu 611130, China; Forestry Ecological Engineering in the Upper Reaches of Yangtze River Key Laboratory of Sichuan Province, Chengdu 611130, China
| | - Fang He
- College of Forestry, Sichuan Agricultural University, Chengdu 611130, China; National Forestry and Grassland Administration Key Laboratory of Forest Resources Conservation and Ecological Safety on the Upper Reaches of the Yangtze River, Chengdu 611130, China; Forestry Ecological Engineering in the Upper Reaches of Yangtze River Key Laboratory of Sichuan Province, Chengdu 611130, China
| | - Hongling Hu
- College of Forestry, Sichuan Agricultural University, Chengdu 611130, China; National Forestry and Grassland Administration Key Laboratory of Forest Resources Conservation and Ecological Safety on the Upper Reaches of the Yangtze River, Chengdu 611130, China; Forestry Ecological Engineering in the Upper Reaches of Yangtze River Key Laboratory of Sichuan Province, Chengdu 611130, China
| | - Lianghua Chen
- College of Forestry, Sichuan Agricultural University, Chengdu 611130, China; National Forestry and Grassland Administration Key Laboratory of Forest Resources Conservation and Ecological Safety on the Upper Reaches of the Yangtze River, Chengdu 611130, China; Forestry Ecological Engineering in the Upper Reaches of Yangtze River Key Laboratory of Sichuan Province, Chengdu 611130, China.
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16
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Sun X, Tang Z, Zheng G, Du H, Li P. Effects of different cellular and subcellular characteristics on the atmospheric Pb uptake, distribution and morphology in Tillandsia usneoides leaves. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2024; 207:108400. [PMID: 38295526 DOI: 10.1016/j.plaphy.2024.108400] [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: 01/17/2024] [Accepted: 01/24/2024] [Indexed: 02/02/2024]
Abstract
Lead (Pb) is a widespread highly toxic and persistent environmental pollutant. Plant leaves play a key role in accumulating atmospheric Pb, but its distribution in different cells and subcellular structures and the factors affecting it have been little studied. Here, Tillandsia usneoides, an indicator plant for atmospheric heavy metals, was treated with an aerosol generation device to analyze Pb contents in different cells (three types of cells in leaf surface scales, epidermal cells, mesophyll cells, vascular bundle cells), subcellular structures (cell wall, cell membrane, vacuoles, and organelles) and cell wall components (pectin, hemicellulose 1 and 2, and cellulose). Results show the different cells of T. usneoides leaves play distinct roles in the process of Pb retention. The outermost wing cells are structures that capture external pollutants, while mesophyll cells, as the aggregation site after material transport, ring cells, disc cells, epidermal cells, and vascular cells are material transporters. Pb was only detected in the cell wall and pectin, indicating the cell wall was the dominant subcellular structure for Pb retention, while pectin was the main component affecting Pb retention. FTIR analysis of cell wall components indicated the esterified carboxyl (CO) functional group in pectin may function in absorbing Pb. Pb entered leaf cells mainly in the form of low toxicity and activity to enhance its resistance.
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Affiliation(s)
- Xingyue Sun
- School of Resources and Environment, Qingdao Agricultural University, Qingdao, 266109, Shandong, China; Center of Molecular Ecophysiology (CMEP), College of Resources and Environment, Southwest University, Chongqing, 400715, China
| | - Zhen Tang
- School of Resources and Environment, Qingdao Agricultural University, Qingdao, 266109, Shandong, China
| | - Guiling Zheng
- School of Resources and Environment, Qingdao Agricultural University, Qingdao, 266109, Shandong, China
| | - Hongxia Du
- Chongqing Key Laboratory of Bio-resource for Bioenergy, College of Resources and Environment, Southwest University, Chongqing, 400715, China
| | - Peng Li
- School of Resources and Environment, Qingdao Agricultural University, Qingdao, 266109, Shandong, China.
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17
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He S, Niu Y, Xing L, Liang Z, Song X, Ding M, Huang W. Research progress of the detection and analysis methods of heavy metals in plants. FRONTIERS IN PLANT SCIENCE 2024; 15:1310328. [PMID: 38362447 PMCID: PMC10867983 DOI: 10.3389/fpls.2024.1310328] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/09/2023] [Accepted: 01/15/2024] [Indexed: 02/17/2024]
Abstract
Heavy metal (HM)-induced stress can lead to the enrichment of HMs in plants thereby threatening people's lives and health via the food chain. For this reason, there is an urgent need for some reliable and practical techniques to detect and analyze the absorption, distribution, accumulation, chemical form, and transport of HMs in plants for reducing or regulating HM content. Not only does it help to explore the mechanism of plant HM response, but it also holds significant importance for cultivating plants with low levels of HMs. Even though this field has garnered significant attention recently, only minority researchers have systematically summarized the different methods of analysis. This paper outlines the detection and analysis techniques applied in recent years for determining HM concentration in plants, such as inductively coupled plasma mass spectrometry (ICP-MS), atomic absorption spectrometry (AAS), atomic fluorescence spectrometry (AFS), X-ray absorption spectroscopy (XAS), X-ray fluorescence spectrometry (XRF), laser ablation-inductively coupled plasma-mass spectrometry (LA-ICP-MS), non-invasive micro-test technology (NMT) and omics and molecular biology approaches. They can detect the chemical forms, spatial distribution, uptake and transport of HMs in plants. For this paper, the principles behind these techniques are clarified, their advantages and disadvantages are highlighted, their applications are explored, and guidance for selecting the appropriate methods to study HMs in plants is provided for later research. It is also expected to promote the innovation and development of HM-detection technologies and offer ideas for future research concerning HM accumulation in plants.
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Affiliation(s)
- Shuang He
- College of Pharmacy, Shaanxi University of Chinese Medicine, Xianyang, China
| | - Yuting Niu
- College of Pharmacy, Shaanxi University of Chinese Medicine, Xianyang, China
| | - Lu Xing
- College of Pharmacy, Shaanxi University of Chinese Medicine, Xianyang, China
| | - Zongsuo Liang
- College of Life Sciences and Medicine, Key Laboratory of Plant Secondary Metabolism and Regulation in Zhejiang Province, Zhejiang Sci-Tech University, Hangzhou, China
| | - Xiaomei Song
- College of Pharmacy, Shaanxi University of Chinese Medicine, Xianyang, China
- Key Laboratory of “Taibaiqiyao” Research and Applications, Shaanxi University of Chinese Medicine, Xianyang, China
| | - Meihai Ding
- Management Department, Xi’an Ande Pharmaceutical Co; Ltd., Xi’an, China
| | - Wenli Huang
- College of Pharmacy, Shaanxi University of Chinese Medicine, Xianyang, China
- Key Laboratory of “Taibaiqiyao” Research and Applications, Shaanxi University of Chinese Medicine, Xianyang, China
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18
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Li Y, Shi X, Xu J, Huang X, Feng J, Huang Y, Liu K, Yu F. Proteomics-based analysis on the stress response mechanism of Bidens pilosa L. under cadmium exposure. JOURNAL OF HAZARDOUS MATERIALS 2024; 462:132761. [PMID: 37837780 DOI: 10.1016/j.jhazmat.2023.132761] [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: 12/30/2022] [Revised: 10/08/2023] [Accepted: 10/10/2023] [Indexed: 10/16/2023]
Abstract
Bidens pilosa L. (B. pilosa) has great potential for the phytoremediation of cadmium (Cd)-contaminated soils. However, the molecular mechanism underlying Cd tolerance and detoxification in B. pilosa is still unclear. In the present study, a 4D label-free quantification technique combined with liquid chromatography-parallel reaction monitoring mass spectrometry was used to explore the stress response mechanism of B. pilosa. Proteomic analysis revealed 213 and 319 differentially expressed proteins (DEPs) in the roots and leaves of B. pilosa, respectively, and 12 target proteins were selected for further analysis. SWISS-MODEL was used to predict the 3D structures of the target proteins. The cation-ATPase-N structural domain and an ATPase-E1-E2 motif, which help to regulate ATPase function, were detected in the TR10519_c0_g1_ORF protein. In addition, the TR6620_c0_g1_ORF_1 and TR611_c1_g1_ORF proteins contained peroxidase-1 and peroxidase-2 motifs. The TR11239_c0_g1_ORF protein was found to belong to the Fe-SOD family, to have a dimeric structure and to contain a relatively high proportion of α-helices but few β-sheets, which play important roles in reactive oxygen intermediate scavenging. Thus, the current study provides an overview of the proteomic response of B. pilosa in scavenging of Cd-induced reactive oxygen intermediates and reveals key proteins involved in the stress response of B. pilosa under Cd exposure.
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Affiliation(s)
- Yi Li
- Key Laboratory of Ecology of Rare and Endangered Species and Environmental Protection (Guangxi Normal University), Ministry of Education, China; College of Environment and Resources, Guangxi Normal University, Guilin 541004, China
| | - Xinwei Shi
- College of Environment and Resources, Guangxi Normal University, Guilin 541004, China
| | - Jie Xu
- College of Life Science, Guangxi Normal University, Guilin 541004, China
| | - Xiaofang Huang
- College of Life Science, Guangxi Normal University, Guilin 541004, China
| | - Jingpei Feng
- College of Environment and Resources, Guangxi Normal University, Guilin 541004, China
| | - Yuanyuan Huang
- College of Environment and Resources, Guangxi Normal University, Guilin 541004, China
| | - Kehui Liu
- Key Laboratory of Ecology of Rare and Endangered Species and Environmental Protection (Guangxi Normal University), Ministry of Education, China; College of Life Science, Guangxi Normal University, Guilin 541004, China
| | - Fangming Yu
- Key Laboratory of Ecology of Rare and Endangered Species and Environmental Protection (Guangxi Normal University), Ministry of Education, China; College of Environment and Resources, Guangxi Normal University, Guilin 541004, China.
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Luo J, Cao M, Deng Y, He Y, Feng S. Effects of magnetic field on cd subcellular distribution and chemical speciation in Noccaea caerulescens. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2024; 269:115835. [PMID: 38100850 DOI: 10.1016/j.ecoenv.2023.115835] [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: 09/01/2023] [Revised: 11/21/2023] [Accepted: 12/12/2023] [Indexed: 12/17/2023]
Abstract
Implementing an external magnetic field of suitable strength has been reported to increase Cd uptake by Noccaea caerulescence. However, only a few mechanisms promoting this efficiency have been reported. A series of culture experiments was conducted to explore how Cd subcellular distribution and speciation vary within the tissue of N. caerulescens when subjected to external magnetic fields of different intensities. Without a magnetic field, over 80% of the Cd was deposited in the cell wall and cytoplasm, indicating that cell wall retention and cytoplasm isolation are significant mechanisms for the detoxification of Cd. An external magnetic field (120 mT) increased the Cd concentrations deposited in the cytoplasm and water-soluble inorganic Cd in the roots, increasing the cell wall-bound Cd and undissolved Cd phosphate in the shoots. Meanwhile, the magnetic field increased carbonic anhydrase activity in plant shoots, except at 400 mT. These results indicated that an external field can elevate the Cd decontamination capacity of N. caerulescens by changing the subcellular compartmentalization and speciation of Cd in different tissues.
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Affiliation(s)
- Jie Luo
- College of Resources and Environment, Yangtze University, Wuhan, China
| | - Min Cao
- University of Leicester, University Road, Leicester LE1 7RH, United Kingdom
| | - Yuping Deng
- College of Resources and Environment, Yangtze University, Wuhan, China
| | - Yue He
- College of Resources and Environment, Yangtze University, Wuhan, China
| | - Siyao Feng
- College of Resources and Environment, Yangtze University, Wuhan, China.
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20
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Wang Y, Zhou T, Wang W, Zhao J, Li Z, Ge Y, Wang Z, Wu L, Christie P. Phytoextraction of highly cadmium-polluted agricultural soil by Sedum plumbizincicola: An eight-hectare field study. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 905:167216. [PMID: 37734600 DOI: 10.1016/j.scitotenv.2023.167216] [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: 07/06/2023] [Revised: 08/26/2023] [Accepted: 09/18/2023] [Indexed: 09/23/2023]
Abstract
Phytoextraction with Sedum plumbizincicola is an in-situ, environmentally friendly and highly efficient remediation technique for slightly Cd-polluted soils but it remains a challenge to remediate highly Cd-polluted soils under field conditions. Here, an 8-ha field experiment was conducted to evaluate the feasibility of repeated phytoextraction by S. plumbizincicola of a highly Cd-polluted acid agricultural soil (pH 5.61, [Cd] 2.58 mg kg-1) in Yunnan province, southwest China. Mean shoot dry biomass production, Cd concentration and Cd uptake were 1.95 t ha-1, 170 mg kg-1 and 339 g ha-1 at the first harvest, and 0.91 t ha-1, 172 mg kg-1 and 142 g ha-1 at the second harvest. After two seasons of phytoextraction, soil total and CaCl2-extractable Cd concentrations decreased from 2.58 ± 0.69 to 1.53 ± 0.43 mg kg-1 and 0.22 ± 0.12 to 0.14 ± 0.07 mg kg-1, respectively. Stepwise multiple linear regression analysis shows that the shoot Cd concentration and uptake of S. plumbizincicola were positively related to soil CaCl2-extractable Cd concentrations, especially in the first crop. A negative relationship indicates that soil organic matter content played an important role in soil Cd availability and shoot Cd concentration in the first crop. In addition, the rhizosphere effect on soil CaCl2-extractable Cd concentration was negatively correlated with soil pH in the first crop. The accuracy of the calculation of soil Cd phytoextraction efficiency at field scale depends on all of the following factors being considered: shoot Cd uptake, cropping pattern, standardized sampling points, and the leaching and surface runoff of Cd. Phytoextraction with S. plumbizincicola is a feasible technique for efficient Cd removal from highly polluted soils and wide variation in soil properties can influence phytoextraction efficiency at the field scale.
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Affiliation(s)
- Yuyang Wang
- State Key Laboratory of Soil and Sustainable Agriculture, Institute of Soil Science, Chinese Academy of Sciences, Nanjing 210008, China; University of the Chinese Academy of Sciences, Beijing 100049, China
| | - Tong Zhou
- State Key Laboratory of Soil and Sustainable Agriculture, Institute of Soil Science, Chinese Academy of Sciences, Nanjing 210008, China.
| | - Wenyong Wang
- State Key Laboratory of Soil and Sustainable Agriculture, Institute of Soil Science, Chinese Academy of Sciences, Nanjing 210008, China
| | - Jie Zhao
- State Key Laboratory of Soil and Sustainable Agriculture, Institute of Soil Science, Chinese Academy of Sciences, Nanjing 210008, China
| | - Zhu Li
- State Key Laboratory of Soil and Sustainable Agriculture, Institute of Soil Science, Chinese Academy of Sciences, Nanjing 210008, China
| | - Yanyan Ge
- State Key Laboratory of Soil and Sustainable Agriculture, Institute of Soil Science, Chinese Academy of Sciences, Nanjing 210008, China
| | - Zhaoyang Wang
- State Key Laboratory of Soil and Sustainable Agriculture, Institute of Soil Science, Chinese Academy of Sciences, Nanjing 210008, China
| | - Longhua Wu
- State Key Laboratory of Soil and Sustainable Agriculture, Institute of Soil Science, Chinese Academy of Sciences, Nanjing 210008, China.
| | - Peter Christie
- State Key Laboratory of Soil and Sustainable Agriculture, Institute of Soil Science, Chinese Academy of Sciences, Nanjing 210008, China
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Chen T, Wen X, Zhou J, Lu Z, Li X, Yan B. A critical review on the migration and transformation processes of heavy metal contamination in lead-zinc tailings of China. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2023; 338:122667. [PMID: 37783414 DOI: 10.1016/j.envpol.2023.122667] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/13/2023] [Revised: 09/11/2023] [Accepted: 09/29/2023] [Indexed: 10/04/2023]
Abstract
The health risks of lead-zinc (Pb-Zn) tailings from heavy metal (HMs) contamination have been gaining increasing public concern. The dispersal of HMs from tailings poses a substantial threat to ecosystems. Therefore, studying the mechanisms of migration and transformation of HMs in Pb-Zn tailings has significant ecological and environmental significance. Initially, this study encapsulated the distribution and contamination status of Pb-Zn tailings in China. Subsequently, we comprehensively scrutinized the mechanisms governing the migration and transformation of HMs in the Pb-Zn tailings from a geochemical perspective. This examination reveals the intricate interplay between various biotic and abiotic constituents, including environmental factors (EFs), characteristic minerals, organic flotation reagents (OFRs), and microorganisms within Pb-Zn tailings interact through a series of physical, chemical, and biological processes, leading to the formation of complexes, chelates, and aggregates involving HMs and OFRs. These interactions ultimately influence the migration and transformation of HMs. Finally, we provide an overview of contaminant migration prediction and ecological remediation in Pb-Zn tailings. In this systematic review, we identify several forthcoming research imperatives and methodologies. Specifically, understanding the dynamic mechanisms underlying the migration and transformation of HMs is challenging. These challenges encompass an exploration of the weathering processes of characteristic minerals and their interactions with HMs, the complex interplay between HMs and OFRs in Pb-Zn tailings, the effects of microbial community succession during the storage and remediation of Pb-Zn tailings, and the importance of utilizing process-based models in predicting the fate of HMs, and the potential for microbial remediation of tailings.
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Affiliation(s)
- Tao Chen
- SCNU Environmental Research Institute, Guangdong Provincial Key Laboratory of Chemical Pollution and Environmental Safety & MOE Key Laboratory of Theoretical Chemistry of Environment, School of Environment, South China Normal University, University Town, Guangzhou, 510006, China.
| | - Xiaocui Wen
- SCNU Environmental Research Institute, Guangdong Provincial Key Laboratory of Chemical Pollution and Environmental Safety & MOE Key Laboratory of Theoretical Chemistry of Environment, School of Environment, South China Normal University, University Town, Guangzhou, 510006, China
| | - Jiawei Zhou
- SCNU Environmental Research Institute, Guangdong Provincial Key Laboratory of Chemical Pollution and Environmental Safety & MOE Key Laboratory of Theoretical Chemistry of Environment, School of Environment, South China Normal University, University Town, Guangzhou, 510006, China
| | - Zheng Lu
- State Key Laboratory of Earth Surface Processes and Resource Ecology, Faculty of Geographical Science, Beijing Normal University, Beijing, 100875, China
| | - Xueying Li
- State Key Laboratory of Earth Surface Processes and Resource Ecology, Faculty of Geographical Science, Beijing Normal University, Beijing, 100875, China
| | - Bo Yan
- SCNU Environmental Research Institute, Guangdong Provincial Key Laboratory of Chemical Pollution and Environmental Safety & MOE Key Laboratory of Theoretical Chemistry of Environment, School of Environment, South China Normal University, University Town, Guangzhou, 510006, China
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22
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Li S, Ji B, Zhang W. A review on the thermochemical treatments of biomass: Implications for hydrochar production and rare earth element recovery from hyperaccumulators. CHEMOSPHERE 2023; 342:140140. [PMID: 37709067 DOI: 10.1016/j.chemosphere.2023.140140] [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: 07/15/2023] [Revised: 09/07/2023] [Accepted: 09/08/2023] [Indexed: 09/16/2023]
Abstract
Phytomining is a promising method that employs hyperaccumulators to concentrate metals from various substrates. Many studies on phytomining have been reported in the literature, while how to recover metals from hyperaccumulators has not been well resolved, which is critical for developing a complete phytomining-based metal recovery process. The most straightforward approach is to combust hyperaccumulators and recover metals from the combustion residue. However, the combustion process results in significant waste and carbon emissions. In contrast to combustion, thermochemical treatments can convert the biomass of hyperaccumulators to valuable products, such as biochar, hydrochar, biocrudes, and biogas. Therefore, it is more sustainable to develop a process that combines thermochemical treatments for metal recovery from hyperaccumulators. To achieve this objective, a systematic and comprehensive understanding of product characteristics and metal fate during thermochemical processing is required. In this article, three emerging thermochemical technologies, i.e., microwave-assisted pyrolysis, hydrothermal processing, and microwave-assisted hydrothermal treatment, are systematically reviewed in terms of conversion mechanisms, merits, demerits, product characteristics, and metal fate. Significant findings reported in the literature on the effects of operating parameters on product characteristics and metal fate during thermochemical treatment of waste biomass, especially those from hyperaccumulators, were summarized. Due to limited studies on thermochemical treatments of rare earth element hyperaccumulators, this review is expanded to include hyperaccumulators of any metal species. Based on comparisons among the three emerging thermochemical treatment technologies, microwave-assisted hydrothermal pyrolysis is identified as the most promising approach that favors carbon product obtainment and REE recovery from hyperaccumulators.
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Affiliation(s)
- Shiyu Li
- Department of Mining and Minerals Engineering, Virginia Polytechnic Institute and State University, Blacksburg, VA, 24061, USA
| | - Bin Ji
- Department of Mining and Minerals Engineering, Virginia Polytechnic Institute and State University, Blacksburg, VA, 24061, USA
| | - Wencai Zhang
- Department of Mining and Minerals Engineering, Virginia Polytechnic Institute and State University, Blacksburg, VA, 24061, USA.
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23
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Zhao F, Han Y, Shi H, Wang G, Zhou M, Chen Y. Arsenic in the hyperaccumulator Pteris vittata: A review of benefits, toxicity, and metabolism. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 896:165232. [PMID: 37392892 DOI: 10.1016/j.scitotenv.2023.165232] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/16/2023] [Revised: 06/27/2023] [Accepted: 06/28/2023] [Indexed: 07/03/2023]
Abstract
Arsenic (As) is a toxic metalloid, elevated levels of which in soils are becoming a major global environmental issue that poses potential health risks to humans. Pteris vittata, the first known As hyperaccumulator, has been successfully used to remediate As-polluted soils. Understanding why and how P. vittata hyperaccumulates As is the core theoretical basis of As phytoremediation technology. In this review, we highlight the beneficial effects of As in P. vittata, including growth promotion, elemental defense, and other potential benefits. The stimulated growth of P. vittata induced by As can be defined as As hormesis, but differs from that in non-hyperaccumulators in some aspects. Furthermore, the As coping mechanisms of P. vittata, including As uptake, reduction, efflux, translocation, and sequestration/detoxification are discussed. We hypothesize that P. vittata has evolved strong As uptake and translocation capacities to obtain beneficial effects from As, which gradually leads to As accumulation. During this process, P. vittata has developed a strong As vacuolar sequestration ability to detoxify overloaded As, which enables it to accumulate extremely high As concentrations in its fronds. This review also provides insights into several important research gaps that need to be addressed to advance our understanding of As hyperaccumulation in P. vittata from the perspective of the benefits of As.
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Affiliation(s)
- Fei Zhao
- School of Environment, Nanjing Normal University, Nanjing 210023, China; Jiangsu Engineering Lab of Water and Soil Eco-remediation, Nanjing Normal University, Nanjing 210023, China
| | - Yu Han
- School of Environment, Nanjing Normal University, Nanjing 210023, China; Jiangsu Engineering Lab of Water and Soil Eco-remediation, Nanjing Normal University, Nanjing 210023, China
| | - Hongyi Shi
- School of Environment, Nanjing Normal University, Nanjing 210023, China; Jiangsu Engineering Lab of Water and Soil Eco-remediation, Nanjing Normal University, Nanjing 210023, China
| | - Guoxiang Wang
- School of Environment, Nanjing Normal University, Nanjing 210023, China; Jiangsu Engineering Lab of Water and Soil Eco-remediation, Nanjing Normal University, Nanjing 210023, China
| | - Mingxi Zhou
- Biology Centre, Czech Academy of Sciences, Institute of Plant Molecular Biology, 37005 Ceske Budejovice, Czech Republic.
| | - Yanshan Chen
- School of Environment, Nanjing Normal University, Nanjing 210023, China; Jiangsu Engineering Lab of Water and Soil Eco-remediation, Nanjing Normal University, Nanjing 210023, China.
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24
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Yang H, Yu H, Wang S, Bayouli IT, Huang H, Ye D, Zhang X, Liu T, Wang Y, Zheng Z, Meers E, Li T. Root radial apoplastic transport contributes to shoot cadmium accumulation in a high cadmium-accumulating rice line. JOURNAL OF HAZARDOUS MATERIALS 2023; 460:132276. [PMID: 37625294 DOI: 10.1016/j.jhazmat.2023.132276] [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: 05/24/2023] [Revised: 08/01/2023] [Accepted: 08/10/2023] [Indexed: 08/27/2023]
Abstract
Radial transport of cadmium (Cd) in roots governs the amount of Cd loaded into xylem vessels, where Cd ions are translocated upward into shoots, while the mechanism of differential Cd radial transport between the high Cd-accumulating rice line Lu527-8 and the normal rice line Lu527-4 remains ambiguous. A higher Cd distribution in cross sections and root apoplast and higher bypass flow of Cd were found in Lu527-8, explaining a greater Cd translocation through the apoplastic pathway. The lower relative area of the epidermis and the constant relative area of the cortex in Lu527-8 opened-up root radial transport for Cd. Deposition of apoplastic barriers (Casparian strips and suberin lamellae) was stimulated by Cd, which effectively prevented Cd from entering the stele through the apoplastic pathway. In Lu527-8, apoplastic barriers were further from the root apex with lower expression of genes responsible for biosynthesis of Casparian strips and suberin lamellae, enhancing radial transport of Cd. Our data revealed that the higher radial apoplastic transport of Cd played an integral role in Cd translocation, contributed to a better understanding of the mechanism involved in high Cd accumulation in Lu527-8 and helped achieve the practical application of phytoextraction.
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Affiliation(s)
- Huan Yang
- College of Resources, Sichuan Agricultural University, Chengdu 611130, Sichuan, China; Lab for bioresource recovery, Faculty of Bioscience Engineering, Ghent University, Ghent 9000, Belgium
| | - Haiying Yu
- College of Resources, Sichuan Agricultural University, Chengdu 611130, Sichuan, China
| | - Shengwang Wang
- College of Resources, Sichuan Agricultural University, Chengdu 611130, Sichuan, China
| | - Ines Terwayet Bayouli
- Lab for bioresource recovery, Faculty of Bioscience Engineering, Ghent University, Ghent 9000, Belgium
| | - Huagang Huang
- College of Resources, Sichuan Agricultural University, Chengdu 611130, Sichuan, China
| | - Daihua Ye
- College of Resources, Sichuan Agricultural University, Chengdu 611130, Sichuan, China
| | - Xizhou Zhang
- College of Resources, Sichuan Agricultural University, Chengdu 611130, Sichuan, China
| | - Tao Liu
- College of Resources, Sichuan Agricultural University, Chengdu 611130, Sichuan, China
| | - Yongdong Wang
- College of Resources, Sichuan Agricultural University, Chengdu 611130, Sichuan, China
| | - Zicheng Zheng
- College of Resources, Sichuan Agricultural University, Chengdu 611130, Sichuan, China
| | - Erik Meers
- Lab for bioresource recovery, Faculty of Bioscience Engineering, Ghent University, Ghent 9000, Belgium
| | - Tingxuan Li
- College of Resources, Sichuan Agricultural University, Chengdu 611130, Sichuan, China.
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Bai Y, Wan X, Lei M, Wang L, Chen T. Research advances in mechanisms of arsenic hyperaccumulation of Pteris vittata: Perspectives from plant physiology, molecular biology, and phylogeny. JOURNAL OF HAZARDOUS MATERIALS 2023; 460:132463. [PMID: 37690196 DOI: 10.1016/j.jhazmat.2023.132463] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/19/2023] [Revised: 08/24/2023] [Accepted: 08/31/2023] [Indexed: 09/12/2023]
Abstract
Pteris vittata, as the firstly discovered arsenic (As) hyperaccumulator, has great application value in As-contaminated soil remediation. Currently, the genes involved in As hyperaccumulation in P. vittata have been mined continuously, while they have not been used in practice to enhance phytoremediation efficiency. Aiming to better assist the practice of phytoremediation, this review collects 130 studies to clarify the progress in research into the As hyperaccumulation process in P. vittata from multiple perspectives. Antioxidant defense, rhizosphere activities, vacuolar sequestration, and As efflux are important physiological activities involved in As hyperaccumulation in P. vittata. Among related 19 genes, PHT, TIP, ACR3, ACR2 and HAC family genes play essential roles in arsenate (AsⅤ) transport, arsenite (AsⅢ) transport, vacuole sequestration of AsⅢ, and the reduction of AsⅤ to AsⅢ, respectively. Gene ontology enrichment analysis indicated it is necessary to further explore genes that can bind to related ions, with transport activity, or with function of transmembrane transport. Phylogeny analysis results implied ACR2, HAC and ACR3 family genes with rapid evolutionary rate may be the decisive factors for P. vittata as an As hyperaccumulator. A deeper understanding of the As hyperaccumulation network and key gene components could provide useful tools for further bio-engineered phytoremediation.
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Affiliation(s)
- Yang Bai
- Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing 100101, China; Sino-Danish College, University of Chinese Academy of Sciences, Beijing 100049, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Xiaoming Wan
- Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing 100101, China; University of Chinese Academy of Sciences, Beijing 100049, China.
| | - Mei Lei
- Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing 100101, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Lingqing Wang
- Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing 100101, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Tongbin Chen
- Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing 100101, China; University of Chinese Academy of Sciences, Beijing 100049, China
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26
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Zhang B, Zhang H, He J, Zhou S, Dong H, Rinklebe J, Ok YS. Vanadium in the Environment: Biogeochemistry and Bioremediation. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2023; 57:14770-14786. [PMID: 37695611 DOI: 10.1021/acs.est.3c04508] [Citation(s) in RCA: 22] [Impact Index Per Article: 22.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/12/2023]
Abstract
Vanadium(V) is a highly toxic multivalent, redox-sensitive element. It is widely distributed in the environment and employed in various industrial applications. Interactions between V and (micro)organisms have recently garnered considerable attention. This Review discusses the biogeochemical cycling of V and its corresponding bioremediation strategies. Anthropogenic activities have resulted in elevated environmental V concentrations compared to natural emissions. The global distributions of V in the atmosphere, soils, water bodies, and sediments are outlined here, with notable prevalence in Europe. Soluble V(V) predominantly exists in the environment and exhibits high mobility and chemical reactivity. The transport of V within environmental media and across food chains is also discussed. Microbially mediated V transformation is evaluated to shed light on the primary mechanisms underlying microbial V(V) reduction, namely electron transfer and enzymatic catalysis. Additionally, this Review highlights bioremediation strategies by exploring their geochemical influences and technical implementation methods. The identified knowledge gaps include the particulate speciation of V and its associated environmental behaviors as well as the biogeochemical processes of V in marine environments. Finally, challenges for future research are reported, including the screening of V hyperaccumulators and V(V)-reducing microbes and field tests for bioremediation approaches.
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Affiliation(s)
- Baogang Zhang
- MOE Key Laboratory of Groundwater Circulation and Environmental Evolution, School of Water Resources and Environment, China University of Geosciences Beijing, Beijing 100083, China
| | - Han Zhang
- MOE Key Laboratory of Groundwater Circulation and Environmental Evolution, School of Water Resources and Environment, China University of Geosciences Beijing, Beijing 100083, China
| | - Jinxi He
- MOE Key Laboratory of Groundwater Circulation and Environmental Evolution, School of Water Resources and Environment, China University of Geosciences Beijing, Beijing 100083, China
| | - Shungui Zhou
- Fujian Provincial Key Laboratory of Soil Environmental Health and Regulation, College of Resources and Environment, Fujian Agriculture and Forestry University, Fuzhou 350002, China
| | - Hailiang Dong
- State Key Laboratory of Biogeology and Environmental Geology, China University of Geosciences Beijing, Beijing 100083, China
| | - Jörg Rinklebe
- University of Wuppertal, School of Architecture and Civil Engineering, Institute of Foundation Engineering, Water- and Waste-Management, Laboratory of Soil- and Groundwater-Management, Pauluskirchstraße 7, Wuppertal 42285, Germany
| | - Yong Sik Ok
- Korea Biochar Research Center, APRU Sustainable Waste Management Program & Division of Environmental Science and Ecological Engineering, Korea University, Seoul 02841, Republic of Korea
- International ESG Association (IESGA), Seoul 02841, Republic of Korea
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27
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Zhu Y, Wang Y, He X, Li B, Du S. Plant growth-promoting rhizobacteria: A good companion for heavy metal phytoremediation. CHEMOSPHERE 2023; 338:139475. [PMID: 37442391 DOI: 10.1016/j.chemosphere.2023.139475] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/11/2023] [Revised: 06/30/2023] [Accepted: 07/10/2023] [Indexed: 07/15/2023]
Abstract
Phytoremediation is an environment-friendly approach regarded as a potential candidate for remediating heavy metal (HM)-contaminated soils. However, the low efficacy of phytoremediation is a major limitation that hampers its large-scale application. Therefore, developing strategies to enhance phytoremediation efficacy for contaminated soils is crucial. Plant growth-promoting rhizobacteria (PGPR) considerably contribute to phytoremediation intensification. To improve the efficiency of plant-microbe symbiosis for remediation, the mechanisms underlying PGPR-stimulated HM accumulation and tolerance in plants should be comprehensively understood. This review focuses on hyperaccumulators, PGPR, and the mechanisms by which PGPR enhance phytoremediation from four aspects: providing nutrients to plants, secreting plant hormones and specific enzymes, inducing systemic resistance, and altering the bioavailability of HMs in soils. It also provides a theoretical and technical basis for future research on PGPR synergism in promoting the phytoextraction efficiency in HM-contaminated soils.
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Affiliation(s)
- Yaxin Zhu
- Key Laboratory of Pollution Exposure and Health Intervention of Zhejiang Province, Interdisciplinary Research Academy (IRA), Zhejiang Shuren University, Hangzhou, 310015, China
| | - Yu Wang
- College of Environmental Science and Engineering, Zhejiang Gongshang University, Hangzhou, 310018, China
| | - Xiaolin He
- Jiangxi Province Agricultural Technology Extension Center, Nanchang, 330045, China
| | - Beier Li
- Key Laboratory of Pollution Exposure and Health Intervention of Zhejiang Province, Interdisciplinary Research Academy (IRA), Zhejiang Shuren University, Hangzhou, 310015, China
| | - Shaoting Du
- Key Laboratory of Pollution Exposure and Health Intervention of Zhejiang Province, Interdisciplinary Research Academy (IRA), Zhejiang Shuren University, Hangzhou, 310015, China.
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He H, Jia Y, Li R, Yang P, Cao M, Luo J. Intercropping Sedum alfredii Hance and Cicer arietinum L. does not present a suitable land use pattern for multi-metal-polluted soil. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:89616-89626. [PMID: 37454382 DOI: 10.1007/s11356-023-28756-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/30/2022] [Accepted: 07/08/2023] [Indexed: 07/18/2023]
Abstract
Intercropping of specific accumulators with industrial crops is used in moderately metal contaminated agricultural land. The distribution characteristics and environmental risks of non-accumulated ions in intercropping fields have rarely been reported. This study analyzed dissolved organic matter (DOM) fractionation and metal chemical forms to investigate the bioavailability, transformation, and uptake of non-hyperaccumulated metals in different cultivation patterns of a Cd hyperaccumulator (Sedum alfredii Hance) and a commercial crop (Cicer arietinum L.). The study focused on the distribution and transformation of heavy metals, with a particular emphasis on the role of DOM in intercropping. The contents of DOM in the rhizosphere soils of the Cd hyperaccumulator monoculture and the intercropping field were obviously greater than the DOM concentration in the commercial crop monoculture. The content of soluble Cd was significantly lower in the former two planting patterns than in the latter. In contrast, soluble Pb and Cu exhibited opposite content characteristics. In addition, the metal extraction ability of DOM extracted from the C. arietinum monoculture was lower than those from the Cd hyperaccumulator monoculture and the intercropping field. The concentrations of Cd in both below-ground and aerial parts of C. arietinum intercropping were significantly lower than those in its monoculture, since S. alfredii depleted soil Cd. Contrastingly, the contents of Cu and Pb in C. arietinum harvested from intercropping were significantly greater than those in its monoculture because the intercropped Cd hyperaccumulator activated Cu and Pb by changing soil DOM content and fractionations without absorbing them. The findings provide valuable insights into the use of intercropping to remediate moderately metal-contaminated agricultural land and highlight the potential risks associated with intercropping in multi-metal-contaminated fields.
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Affiliation(s)
- Hongwei He
- College of Resources and Environment, Yangtze University, Wuhan, China
| | - Yifan Jia
- College of Resources and Environment, Yangtze University, Wuhan, China
| | - Ruyi Li
- College of Resources and Environment, Yangtze University, Wuhan, China
| | - Pan Yang
- College of Resources and Environment, Yangtze University, Wuhan, China
| | - Min Cao
- University of Leicester, University Road, Leicester, LE1 7RH, UK
| | - Jie Luo
- College of Resources and Environment, Yangtze University, Wuhan, China.
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Sun X, Kong T, Huang D, Chen Z, Kolton M, Yang J, Huang Y, Cao Y, Gao P, Yang N, Li B, Liu H, Sun W. Arsenic (As) oxidation by core endosphere microbiome mediates As speciation in Pteris vittata roots. JOURNAL OF HAZARDOUS MATERIALS 2023; 454:131458. [PMID: 37099912 DOI: 10.1016/j.jhazmat.2023.131458] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/23/2023] [Revised: 04/17/2023] [Accepted: 04/19/2023] [Indexed: 05/19/2023]
Abstract
Pteris vittata is an arsenic(As)-hyperaccumulator that may be employed in phytoremediation of As-contaminated soils. P. vittata-associated microbiome are adapted to elevated As and may be important for host survival under stresses. Although P. vittata root endophytes could be critical for As biotransformation in planta, their compositions and metabolisms remain elusive. The current study aims to characterize the root endophytic community composition and As-metabolizing potentials in P. vittata. High As(III) oxidase gene abundances and rapid As(III) oxidation activity indicated that As(III) oxidation was the dominant microbial As-biotransformation processes compared to As reduction and methylization in P. vittata roots. Members of Rhizobiales were the core microbiome and the dominant As(III) oxidizers in P. vittata roots. Acquasition of As-metabolising genes, including both As(III) oxidase and As(V) detoxification reductase genes, through horizontal gene transfer was identified in a Saccharimonadaceae genomic assembly, which was another abundant population residing in P. vittata roots. Acquisition of these genes might improve the fitness of Saccharimonadaceae population to elevated As concentrations in P. vittata. Diverse plant growth promoting traits were encoded by the core root microbiome populations Rhizobiales. We propose that microbial As(III) oxidation and plant growth promotion are critical traits for P. vittata survival in hostile As-contaiminated sites.
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Affiliation(s)
- Xiaoxu Sun
- National-Regional Joint Engineering Research Center for Soil Pollution Control and Remediation in South China, Guangdong Key Laboratory of Integrated Agro-environmental Pollution Control and Management, Institute of Eco-environmental and Soil Sciences, Guangdong Academy of Sciences, Guangzhou 510650, China; Guangdong-Hong Kong-Macao Joint Laboratory for Environmental Pollution and Control,Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou 510640, China
| | - Tianle Kong
- National-Regional Joint Engineering Research Center for Soil Pollution Control and Remediation in South China, Guangdong Key Laboratory of Integrated Agro-environmental Pollution Control and Management, Institute of Eco-environmental and Soil Sciences, Guangdong Academy of Sciences, Guangzhou 510650, China; College of Environmental Science and Engineering, Donghua University, Shanghai 201620, China
| | - Duanyi Huang
- National-Regional Joint Engineering Research Center for Soil Pollution Control and Remediation in South China, Guangdong Key Laboratory of Integrated Agro-environmental Pollution Control and Management, Institute of Eco-environmental and Soil Sciences, Guangdong Academy of Sciences, Guangzhou 510650, China; College of Environmental Science and Engineering, Hunan University, Changsha 410082, China
| | - Zhenyu Chen
- National-Regional Joint Engineering Research Center for Soil Pollution Control and Remediation in South China, Guangdong Key Laboratory of Integrated Agro-environmental Pollution Control and Management, Institute of Eco-environmental and Soil Sciences, Guangdong Academy of Sciences, Guangzhou 510650, China; School of Environment, Key Laboratory of Yellow River and Huai River Water Environment and Pollution Control, Ministry of Education, Henan Normal University, Xinxiang 453007, China
| | - Max Kolton
- French Associates Institute for Agriculture and Biotechnology of Drylands, Ben-Gurion University of the Negev, Beer Sheva 84105, Israel
| | - Jinchan Yang
- National-Regional Joint Engineering Research Center for Soil Pollution Control and Remediation in South China, Guangdong Key Laboratory of Integrated Agro-environmental Pollution Control and Management, Institute of Eco-environmental and Soil Sciences, Guangdong Academy of Sciences, Guangzhou 510650, China; School of Environment, Key Laboratory of Yellow River and Huai River Water Environment and Pollution Control, Ministry of Education, Henan Normal University, Xinxiang 453007, China
| | - Yuqing Huang
- National-Regional Joint Engineering Research Center for Soil Pollution Control and Remediation in South China, Guangdong Key Laboratory of Integrated Agro-environmental Pollution Control and Management, Institute of Eco-environmental and Soil Sciences, Guangdong Academy of Sciences, Guangzhou 510650, China; Guangdong-Hong Kong-Macao Joint Laboratory for Environmental Pollution and Control,Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou 510640, China
| | - Yue Cao
- School of Environmental Science and Engineering, Sun Yat-sen University, Guangzhou 510006, China
| | - Peng Gao
- National-Regional Joint Engineering Research Center for Soil Pollution Control and Remediation in South China, Guangdong Key Laboratory of Integrated Agro-environmental Pollution Control and Management, Institute of Eco-environmental and Soil Sciences, Guangdong Academy of Sciences, Guangzhou 510650, China; Guangdong-Hong Kong-Macao Joint Laboratory for Environmental Pollution and Control,Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou 510640, China
| | - Nie Yang
- National-Regional Joint Engineering Research Center for Soil Pollution Control and Remediation in South China, Guangdong Key Laboratory of Integrated Agro-environmental Pollution Control and Management, Institute of Eco-environmental and Soil Sciences, Guangdong Academy of Sciences, Guangzhou 510650, China; Guangdong-Hong Kong-Macao Joint Laboratory for Environmental Pollution and Control,Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou 510640, China
| | - Baoqin Li
- National-Regional Joint Engineering Research Center for Soil Pollution Control and Remediation in South China, Guangdong Key Laboratory of Integrated Agro-environmental Pollution Control and Management, Institute of Eco-environmental and Soil Sciences, Guangdong Academy of Sciences, Guangzhou 510650, China; Guangdong-Hong Kong-Macao Joint Laboratory for Environmental Pollution and Control,Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou 510640, China
| | - Huaqing Liu
- National-Regional Joint Engineering Research Center for Soil Pollution Control and Remediation in South China, Guangdong Key Laboratory of Integrated Agro-environmental Pollution Control and Management, Institute of Eco-environmental and Soil Sciences, Guangdong Academy of Sciences, Guangzhou 510650, China; Guangdong-Hong Kong-Macao Joint Laboratory for Environmental Pollution and Control,Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou 510640, China
| | - Weimin Sun
- National-Regional Joint Engineering Research Center for Soil Pollution Control and Remediation in South China, Guangdong Key Laboratory of Integrated Agro-environmental Pollution Control and Management, Institute of Eco-environmental and Soil Sciences, Guangdong Academy of Sciences, Guangzhou 510650, China; Guangdong-Hong Kong-Macao Joint Laboratory for Environmental Pollution and Control,Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou 510640, China.
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Wan X, Zeng W, Lei M, Chen T. The influence of diverse fertilizer regimes on the phytoremediation potential of Pteris vittata in an abandoned nonferrous metallic mining site. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 880:163246. [PMID: 37019239 DOI: 10.1016/j.scitotenv.2023.163246] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/29/2023] [Revised: 03/29/2023] [Accepted: 03/30/2023] [Indexed: 05/27/2023]
Abstract
Organic waste comprises a large amount of hydrocarbon containing organic substances, which is regarded as a potential resource rather than simply a waste. A field experiment was conducted in a poly-metallic mining area to investigate the potential of organic waste to facilitate the soil remediation process. Different organic wastes and a commonly used commercial fertilizer were added to heavy metal contaminated soil, which was under phytoremediation using the As hyperaccumulator Pteris vittata. The influence of diverse fertilizer regimes on the biomass of P. vittata and heavy metal removal by P. vittata, was investigated. The soil properties were analyzed after the application of phytoremediation with or without the addition of organic wastes. Results indicated that sewage sludge compost is an appropriate amendment to improve the phytoremediation efficiency. Compared to the control, the application of sewage sludge compost significantly reduced the extractability of As in soil by 26.8 %, and increased the removal of As and Pb by 26.9 % and 186.5 %, respectively. The highest removal of As and Pb reached 33 and 34 kg/ha, respectively. The sewage sludge compost-strengthened phytoremediation improved soil quality. And the diversity and richness of the bacterial community were improved, as represented by the increase in Shannon and Chao index. With improved efficiency and acceptable cost, the organic waste-strengthened phytoremediation can be used to control the risks posed by high concentrations of heavy metals in mining areas.
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Affiliation(s)
- Xiaoming Wan
- Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing 100101, China; University of Chinese Academy of Sciences, Beijing 100049, China.
| | - Weibin Zeng
- Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing 100101, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Mei Lei
- Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing 100101, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Tongbin Chen
- Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing 100101, China; University of Chinese Academy of Sciences, Beijing 100049, China
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Xue T, Liao X, Li H, Xie Y, Wei W, Chen J, Liu Z, Ji X. Remediation of Cd contaminated paddy fields by intercropping of the high- and low- Cd-accumulating rice cultivars. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 878:163133. [PMID: 37001672 DOI: 10.1016/j.scitotenv.2023.163133] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/28/2023] [Revised: 03/23/2023] [Accepted: 03/24/2023] [Indexed: 05/13/2023]
Abstract
Intercropping cadmium (Cd) hyperaccumulators with crops have been widely applied in the remediation of contaminated farmland soils. However, most studies were done on drylands since the majority of the hyperaccumulators are susceptible to the aquatic environment, making the remediation of Cd-contaminated paddy fields particularly difficult. Our study attempts to address the issue by intercropping the high-Cd-accumulating (henceforth, "high-Cd") rice cultivars with the low-Cd-accumulating (henceforth, "low-Cd") ones, and to study the Cd removal, uptake and translocation during the remediation process. The results indicated that intercropping mode with 20-cm row spacing (intercropping-20 treatment) performed better than the that with 30-cm row spacing (intercropping-30 treatment), while intercropping had stronger impact on late rice compared to early rice. In general, the physiological condition of rice was stable under the intercropping-20 treatment, suggesting the growth of rice was not impeded. For late rice, as the intercropping-20 treatment can significantly reduce soil pH and increase the diethylenetriaminepentaacetic acid extracted Cd (DTPA-extracted Cd) from the rhizosphere soil, Cd accumulated more in the tissues of the high-Cd rice cultivars (H2), and its dry biomass increased. As a result, a drastic improvement in the total Cd removal rate by 38.55 % was noticed. Therefore, the reduction of total Cd concentration in 0-20 cm profile caused by removal, thus it could provide safer soil environment for the growth of low Cd-rice cultivars (L2), leading to a significant drop in the root Cd concentration and safer production of L2. Interestingly, intercropping had no effect on the yield per plant of low-Cd rice cultivars. For early rice, intercropping-20 treatment exerted trivial effects to all aspects. The intercropping-30 treatment has poor representativeness of all indicators because of the large intercropping distance. Our results demonstrate that intercropping of the high-Cd and the low-Cd rice cultivars is a potential mode for Cd remediation in paddy fields.
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Affiliation(s)
- Tao Xue
- Hunan Institute of Agro-Environment and Ecology, Hunan Academy of Agricultural Sciences, Changsha 410125, China; Key Lab of Prevention, Control and Remediation of Soil Heavy Metal Pollution, Ministry of Agriculture Key Lab of Agri-Environment in the Midstream of Yangtze River Plain, Changsha 410125, China
| | - Xiaoyong Liao
- Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Science (CAS), Beijing 100101, China.
| | - Hongying Li
- Foreign Environmental Cooperation Center, Ministry of Ecology and Environment, Beijing 100035, China
| | - Yunhe Xie
- Hunan Institute of Agro-Environment and Ecology, Hunan Academy of Agricultural Sciences, Changsha 410125, China; Key Lab of Prevention, Control and Remediation of Soil Heavy Metal Pollution, Ministry of Agriculture Key Lab of Agri-Environment in the Midstream of Yangtze River Plain, Changsha 410125, China
| | - Wei Wei
- Hunan Institute of Agro-Environment and Ecology, Hunan Academy of Agricultural Sciences, Changsha 410125, China; Key Lab of Prevention, Control and Remediation of Soil Heavy Metal Pollution, Ministry of Agriculture Key Lab of Agri-Environment in the Midstream of Yangtze River Plain, Changsha 410125, China
| | - Jie Chen
- Hunan Institute of Agro-Environment and Ecology, Hunan Academy of Agricultural Sciences, Changsha 410125, China; Key Lab of Prevention, Control and Remediation of Soil Heavy Metal Pollution, Ministry of Agriculture Key Lab of Agri-Environment in the Midstream of Yangtze River Plain, Changsha 410125, China
| | - Zhaobing Liu
- Hunan Institute of Agro-Environment and Ecology, Hunan Academy of Agricultural Sciences, Changsha 410125, China; Key Lab of Prevention, Control and Remediation of Soil Heavy Metal Pollution, Ministry of Agriculture Key Lab of Agri-Environment in the Midstream of Yangtze River Plain, Changsha 410125, China
| | - Xionghui Ji
- Hunan Institute of Agro-Environment and Ecology, Hunan Academy of Agricultural Sciences, Changsha 410125, China; Key Lab of Prevention, Control and Remediation of Soil Heavy Metal Pollution, Ministry of Agriculture Key Lab of Agri-Environment in the Midstream of Yangtze River Plain, Changsha 410125, China.
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32
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Liu M, He X, Zhuo R, Mu J, Zhang D. Functional characterization of a DNA-damage repair/tolerance 100 (DRT100) gene in Sedum alfredii Hance for genome stability maintenance and Cd hypertolerance. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2023; 327:121546. [PMID: 37019266 DOI: 10.1016/j.envpol.2023.121546] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/17/2022] [Revised: 03/13/2023] [Accepted: 03/31/2023] [Indexed: 06/19/2023]
Abstract
Cd contamination is a world-wild concern for its toxicity and accumulation in food chain. Sedum alfredii Hance (Crassulaceae) is a zinc (Zn) and cadmium (Cd) hyperaccumulator native to China and widely applied for the phytoremediation at Zn or Cd contaminated sites. Although many studies report the uptake, translocation and storage of Cd in S. alfredii Hance, limited information is known about the genes and underlying mechanisms of genome stability maintenance under Cd stress. In this study, a gene resembling DNA-damage repair/toleration 100 (DRT100) was Cd inducible and designated as SaDRT100. Heterologous expression of SaDRT100 gene in yeasts and Arabidopsis thaliana enhanced Cd tolerance capability. Under Cd stress, transgenic Arabidopsis with SaDRT100 gene exhibited lower levels of reactive oxygen species (ROS), fewer Cd uptake in roots and less Cd-induced DNA damage. Evidenced by the subcellular location in cellular nucleus and expression in aerial parts, we suggested the involvement of SaDRT100 in combating Cd-induced DNA damage. Our findings firstly uncovered the roles of SaDRT100 gene in Cd hypertolerance and genome stability maintenance in S. alfredii Hance. The potential functions of DNA protection make SaDRT100 gene a candidate in genetic engineering for phytoremediation at multi-component contaminated sites.
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Affiliation(s)
- Mingying Liu
- School of Basic Medical Sciences, Zhejiang Chinese Medical University, Hangzhou, 310053, China
| | - Xuelian He
- Fungal Research Center, Shaanxi Institute of Microbiology, Xi'an, 710043, Shaanxi, China
| | - Renying Zhuo
- State Key Laboratory of Tree Genetics and Breeding, Chinese Academy of Forestry, Beijing, 100091, China; The Research Institute of Subtropical of Forestry, Chinese Academy of Forestry, Hangzhou, 311400, China
| | - Ju Mu
- School of Basic Medical Sciences, Zhejiang Chinese Medical University, Hangzhou, 310053, China
| | - Dayi Zhang
- Key Laboratory of Groundwater Resources and Environment (Jilin University), Ministry of Education, Changchun, 130021, China; College of New Energy and Environment, Jilin University, Changchun, 130021, China.
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Zeng X, Yang Y, Zhang Q, Zeng C, Deng X, Yuan H, Gong X, Zou D, Zeng Q. Field-scale differences in rhizosphere micro-characteristics of Cichorium intybus, Ixeris polycephala, sunflower, and Sedum alfredii in the phytoremediation of Cd-contaminated soil. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2023; 262:115137. [PMID: 37320919 DOI: 10.1016/j.ecoenv.2023.115137] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/19/2022] [Revised: 06/09/2023] [Accepted: 06/11/2023] [Indexed: 06/17/2023]
Abstract
Understanding the intricate interplay between Cd accumulation in plants and their rhizosphere micro-characteristics is important for the selection of plant species with profitable Cd phytoextraction and soil remediation efficiencies. This study investigated the differences in rhizosphere micro-ecological characteristics and Cd accumulation in chicory, Ixeris polycephala, sunflower, and Sedum alfredii in low-moderate Cd-contaminated soil. Data reveal that the dominant organic acids in rhizosphere soil that responded to Cd were oxalic and lactic acids in chicory and Ixeris polycephala, tartaric acid in sunflower, and succinic acid in Sedum alfredii. These unique organic acids could also influence the abundance of specific rhizobacterial communities in rhizosphere soil that were Sphingomonadaceae and Bradyrhizobiaceae in both Sedum alfredii (9.75 % and 2.56 %, respectively) and chicory (8.98 % and 2.82 %, respectively) rhizosphere soil, Xanthomonadaceae in both Sedum alfredii and Ixeris polycephala rhizosphere soil, and Gaiellaceae in chicory rhizosphere soil. In this case, the combined effects of the organic acids and unique rhizobacterial communities by plant species increased the bioavailable concentration of Cd in Sedum alfredii, Ixeris polycephala, and sunflower rhizosphere soil, while decreasing the Cd-DOM concentrations in chicory rhizosphere soil and the water-extractable Cd reduced by 88.02 % compared to the control. Though the capacity for Cd accumulation in the shoots of chicory was weaker than of Sedum alfredii but better than either Ixeris polycephala or sunflower, chicory presented better Cd translocation and harbored Cd mainly as the low toxic chemical form of pectates and proteins-bound Cd and Cd oxalate in its shoot. Generally, chicory, as an economic plant, is suitable for phytoremediation of low-moderate Cd-contaminated soil after Sedum alfredii.
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Affiliation(s)
- Xinyi Zeng
- College of Resources and Environment, Hunan Agricultural University, Changsha, Hunan 410128, PR China; Key Laboratory for Rural Ecosystem Health in Dongting Lake Area of Hunan Province, Changsha 410128, PR China; School of Life Science, Jinggangshan University, Ji'an, Jiangxi 343009, PR China
| | - Yang Yang
- College of Resources and Environment, Hunan Agricultural University, Changsha, Hunan 410128, PR China; Key Laboratory for Rural Ecosystem Health in Dongting Lake Area of Hunan Province, Changsha 410128, PR China.
| | - Qiuguo Zhang
- College of Resources and Environment, Hunan Agricultural University, Changsha, Hunan 410128, PR China; Key Laboratory for Rural Ecosystem Health in Dongting Lake Area of Hunan Province, Changsha 410128, PR China
| | - Chunyang Zeng
- College of Resources and Environment, Hunan Agricultural University, Changsha, Hunan 410128, PR China; Key Laboratory for Rural Ecosystem Health in Dongting Lake Area of Hunan Province, Changsha 410128, PR China
| | - Xiao Deng
- College of Resources and Environment, Hunan Agricultural University, Changsha, Hunan 410128, PR China; Key Laboratory for Rural Ecosystem Health in Dongting Lake Area of Hunan Province, Changsha 410128, PR China
| | - Haiwei Yuan
- Hunan Huanbaoqiao Ecology and Environment Engineering Co., Ltd, Changsha, Hunan 410128, PR China
| | - Xiaomin Gong
- College of Resources and Environment, Hunan Agricultural University, Changsha, Hunan 410128, PR China; Key Laboratory for Rural Ecosystem Health in Dongting Lake Area of Hunan Province, Changsha 410128, PR China
| | - Dongsheng Zou
- College of Resources and Environment, Hunan Agricultural University, Changsha, Hunan 410128, PR China; Key Laboratory for Rural Ecosystem Health in Dongting Lake Area of Hunan Province, Changsha 410128, PR China
| | - Qingru Zeng
- College of Resources and Environment, Hunan Agricultural University, Changsha, Hunan 410128, PR China; Key Laboratory for Rural Ecosystem Health in Dongting Lake Area of Hunan Province, Changsha 410128, PR China
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Wu S, Yang Y, Qin Y, Deng X, Zhang Q, Zou D, Zeng Q. Cichorium intybus L. is a potential Cd-accumulator for phytoremediation of agricultural soil with strong tolerance and detoxification to Cd. JOURNAL OF HAZARDOUS MATERIALS 2023; 451:131182. [PMID: 36921417 DOI: 10.1016/j.jhazmat.2023.131182] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/07/2022] [Revised: 02/15/2023] [Accepted: 03/07/2023] [Indexed: 06/18/2023]
Abstract
Identifying suitable plants for phytoremediation of Cd (cadmium) contaminated agricultural soil is critical. In this study, whether chicory (Cichorium intybus L.) qualified as an ideal accumulator for phytoremediation was investigated. The hydroponic and pot experiments showed that Cd concentration in chicory leaves exceeded 100 mg kg-1 (BCF >1, TF >1) with 40 mg kg-1 Cd in pot; No significant effects on chicory growth, leaf protein and physiological and biochemical aspects when treated with ≤ 20 μM or 40 mg kg-1 Cd, because chicory could relieve Cd toxicity by increasing activities of photoprotection mechanisms, the reactive oxygen species scavenging system and concentrations of functional groups in plant tissues. In field experiment, 16.2 and 26.6 t ha-1 of chicory leaves was harvested in winter and summer, respectively. The highest Cd concentration in leaves was close to 25.0 mg kg-1 (BCF >1, TF >1) from the acid soil with 0.980 mg kg-1 Cd. Over 320 g ha-1 Cd was extracted from soil by harvesting chicory leaves both in winter and summer, with 9.24% and 12.9% of theoretical phytoremediation efficiency. Therefore, chicory can be as an ideal Cd-accumulator for phytoremediation of slight-to-moderate Cd-contaminated agricultural soil in any season.
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Affiliation(s)
- Shuangjun Wu
- College of Resources and Environment, Hunan Agricultural University, Changsha 410128, China; Hunan Provincial Key Laboratory of Rural Ecosystem Health in Dongting Lake Area, Changsha 410128, China
| | - Yang Yang
- College of Resources and Environment, Hunan Agricultural University, Changsha 410128, China; Hunan Provincial Key Laboratory of Rural Ecosystem Health in Dongting Lake Area, Changsha 410128, China.
| | - Yongbo Qin
- College of Resources and Environment, Hunan Agricultural University, Changsha 410128, China; Hunan Provincial Key Laboratory of Rural Ecosystem Health in Dongting Lake Area, Changsha 410128, China
| | - Xiao Deng
- College of Resources and Environment, Hunan Agricultural University, Changsha 410128, China; Hunan Provincial Key Laboratory of Rural Ecosystem Health in Dongting Lake Area, Changsha 410128, China
| | - Qiuguo Zhang
- College of Resources and Environment, Hunan Agricultural University, Changsha 410128, China; Hunan Provincial Key Laboratory of Rural Ecosystem Health in Dongting Lake Area, Changsha 410128, China
| | - Dongsheng Zou
- College of Resources and Environment, Hunan Agricultural University, Changsha 410128, China; Hunan Provincial Key Laboratory of Rural Ecosystem Health in Dongting Lake Area, Changsha 410128, China
| | - Qingru Zeng
- College of Resources and Environment, Hunan Agricultural University, Changsha 410128, China; Hunan Provincial Key Laboratory of Rural Ecosystem Health in Dongting Lake Area, Changsha 410128, China
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Wang W, Yang X, Mo Q, Li Y, Meng D, Li H. Intercropping efficiency of Pteris vittata with two legume plants: Impacts of soil arsenic concentrations. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2023; 259:115004. [PMID: 37196521 DOI: 10.1016/j.ecoenv.2023.115004] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/11/2023] [Revised: 04/17/2023] [Accepted: 05/10/2023] [Indexed: 05/19/2023]
Abstract
Intercropping of hyperaccumulators with crops has emerged as a promising method for remediating arsenic (As)-contaminated soil in agroecosystems. However, the response of intercropping hyperaccumulators with different types of legume plants to diverse gradients of As-contaminated soil remains poorly understood. In this study, we assessed the response of plant growth and accumulation of an As hyperaccumulator (Pteris vittata L.) intercropped with two legume plants to three gradients of As-contaminated soil. Results indicated that soil As concentration had a substantial effect on the As uptake by plants. P. vittata growing in slightly As-contaminated soil (80 mg kg-1) exhibited higher As accumulation (1.52-5.49 folds) than those in higher As-contaminated soil (117 and 148 mg kg-1), owing to the lower soil pH in high As-contaminated soil. Intercropping with Sesbania cannabina L. increased As accumulation in P. vittata by 19.3%- 53.9% but decreased in intercropping with Cassia tora L. This finding was attributed to S. cannabina providing more NO3--N to P. vittata to support its growth, and higher resistance to As. The decreased rhizosphere pH in the intercropping treatment also resulted in the increased As accumulation in P. vittata. Meanwhile, the As concentrations in the seeds of the two legume plants met the national food standards(<0.5 mg kg-1). Therefore, the intercropping P. vittata with S. cannabina is a highly effective intercropping system in slightly As-contaminated soil and provides a potent method for As phytoremediation.
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Affiliation(s)
- Wenjuan Wang
- College of Natural Resources and Environment, South China Agricultural University, Guangzhou 510642, China; Key Laboratory of Agro-Environment in the Tropics, Ministry of Agriculture of China, Guangzhou 510642, China
| | - Xu Yang
- School of Environmental Science and Engineering, Sun Yat-sen University, Guangzhou 510275, China
| | - Qifeng Mo
- College of Forestry and Landscape Architecture, South China Agricultural University, Guangzhou 510642, China
| | - Yinshi Li
- College of Natural Resources and Environment, South China Agricultural University, Guangzhou 510642, China; Key Laboratory of Agro-Environment in the Tropics, Ministry of Agriculture of China, Guangzhou 510642, China
| | - Dele Meng
- College of Natural Resources and Environment, South China Agricultural University, Guangzhou 510642, China; Key Laboratory of Agro-Environment in the Tropics, Ministry of Agriculture of China, Guangzhou 510642, China
| | - Huashou Li
- College of Natural Resources and Environment, South China Agricultural University, Guangzhou 510642, China; Key Laboratory of Agro-Environment in the Tropics, Ministry of Agriculture of China, Guangzhou 510642, China.
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He Y, Ding N, Yu G, Sunahara GI, Lin H, Zhang X, Ullah H, Liu J. High-resolution imaging of O 2 dynamics and metal solubilization in the rhizosphere of the hyperaccumulator Leersia hexandra Swartz. JOURNAL OF HAZARDOUS MATERIALS 2023; 455:131580. [PMID: 37167872 DOI: 10.1016/j.jhazmat.2023.131580] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/30/2022] [Revised: 04/25/2023] [Accepted: 05/03/2023] [Indexed: 05/13/2023]
Abstract
The mobilization of trace metals in the rhizosphere can be affected by the redox potential, which is closely related to the O2 dynamics. This study examined the distributions of O2 and trace metals in the rhizosphere of the subaquatic hyperaccumulator Leersia hexandra Swartz under chromium (Cr) stress using planar optodes and the diffusive gradients in thin films technique coupled with laser ablation inductively coupled plasma mass spectrometry. The O2 concentrations and oxidized areas in the rhizosphere significantly increased with increases in the light intensity, air humidity, and atmospheric CO2 concentrations (p < 0.05). The O2 concentration first increased with increasing ambient temperatures, then decreased when the temperature increased from 25 to 32 ℃. The O2 concentration in the rhizosphere was significantly decreased under Cr stress (p < 0.05), with a prolonged response time to the altered ambient temperature. Cr stress led to decreased mobilities of As, Cd, Co, Cr, Cu, Fe, Mn, Mo, Ni, Sb, V, W, and Zn in the rhizosphere, which were negatively correlated with the concentrations of O2. These results provide new insights into the role of changes in the O2 concentration induced by the roots of hyperaccumulator plants in controlling the mobility of trace metals in soils.
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Affiliation(s)
- Yao He
- College of Environmental Science and Engineering, Guilin University of Technology, Guilin, China
| | - Na Ding
- College of Environmental Science and Engineering, Guilin University of Technology, Guilin, China
| | - Guo Yu
- College of Environmental Science and Engineering, Guilin University of Technology, Guilin, China; Guangxi Collaborative Innovation Center for Water Pollution Control and Water Safety in Karst Areas, Guilin University of Technology, 541000 Guilin, China.
| | - Geoffrey I Sunahara
- Department of Natural Resource Sciences, McGill University, Montreal, Quebec, Canada
| | - Hua Lin
- College of Environmental Science and Engineering, Guilin University of Technology, Guilin, China; Guangxi Collaborative Innovation Center for Water Pollution Control and Water Safety in Karst Areas, Guilin University of Technology, 541000 Guilin, China.
| | - Xuehong Zhang
- College of Environmental Science and Engineering, Guilin University of Technology, Guilin, China; Guangxi Collaborative Innovation Center for Water Pollution Control and Water Safety in Karst Areas, Guilin University of Technology, 541000 Guilin, China
| | - Habib Ullah
- Department of Environmental Science, Zhejiang University, Hangzhou, Zhejiang, China
| | - Jie Liu
- College of Environmental Science and Engineering, Guilin University of Technology, Guilin, China; Guangxi Collaborative Innovation Center for Water Pollution Control and Water Safety in Karst Areas, Guilin University of Technology, 541000 Guilin, China
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Zhang Q, Wang L, Xiao Y, Liu Q, Zhao F, Li X, Tang L, Liao X. Migration and transformation of Cd in four crop rotation systems and their potential for remediation of Cd-contaminated farmland in southern China. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 885:163893. [PMID: 37146815 DOI: 10.1016/j.scitotenv.2023.163893] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/01/2023] [Revised: 03/29/2023] [Accepted: 04/27/2023] [Indexed: 05/07/2023]
Abstract
A crop rotation system combining agricultural production with phytoremediation is an economical and sustainable method of remediation of cadmium (Cd)-contaminated farmland. This study focuses on migration and transformation of Cd in rotation systems and the influencing factors. In a two-year field experiment, four rotation systems were evaluated: traditional rice and oilseed rape (TRO), low-Cd rice and oilseed rape (LRO), maize and oilseed rape (MO), and soybean and oilseed rape (SO). Oilseed rape is a remediation plant in rotation systems. Compared to 2020, the grain Cd concentrations of traditional rice, low-Cd rice, and maize in 2021 decreased by 73.8 %, 65.7 %, and 24.0 % (below the safety limits), respectively. However, soybean increased by 71.4 %. The LRO system featured the highest oil content of rapeseed (about 50 %) and economic output/input ratio (1.34). Removal efficiency of total Cd in soil was 10.03 % (TRO) > 8.3 % (LRO) > 5.32 % (SO) > 3.21 % (MO). Crop uptake of Cd was influenced by bioavailability of soil Cd, and soil environmental factors regulated the bioavailable Cd. Redundancy analysis (RDA) indicated that soil nitrate‑nitrogen (NO3--N) had a dominant impact on bioavailable Cd in soil, with variance contributions of 56.7 % for paddy-upland (TRO and LRO) and 53.5 % for dryland (MO and SO) rotation systems. The difference reflected that ammonium N (NH4+-N) was a secondary factor in paddy-upland rotations, while it was the available phosphorus (P) in dryland rotations, with variance contributions of 10.4 % and 24.3 %, respectively. The comprehensive evaluation of crop safety, production, economic benefits, and remediation efficiency revealed that the LRO system was efficient and more acceptable to local farmers, providing a new direction for the utilization and remediation of Cd-contaminated farmland.
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Affiliation(s)
- Qingying Zhang
- Key Laboratory of Land Surface Pattern and Simulation, Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences (CAS), Beijing 100101, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Liang Wang
- Key Laboratory of Land Surface Pattern and Simulation, Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences (CAS), Beijing 100101, China; Beijing Key Laboratory of Environmental Damage Assessment and Remediation, Beijing 100101, China
| | - Yuxuan Xiao
- Key Laboratory of Land Surface Pattern and Simulation, Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences (CAS), Beijing 100101, China
| | - Qiqing Liu
- Key Laboratory of Land Surface Pattern and Simulation, Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences (CAS), Beijing 100101, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Fenghua Zhao
- Key Laboratory of Land Surface Pattern and Simulation, Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences (CAS), Beijing 100101, China
| | - Xiaofang Li
- Oil Crops Research Institute, Hengyang Academy of Agricultural Sciences, Hengyang 421000, China
| | - Liping Tang
- Oil Crops Research Institute, Hengyang Academy of Agricultural Sciences, Hengyang 421000, China
| | - Xiaoyong Liao
- Key Laboratory of Land Surface Pattern and Simulation, Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences (CAS), Beijing 100101, China; Beijing Key Laboratory of Environmental Damage Assessment and Remediation, Beijing 100101, China.
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Jia Y, Yin X, Zhao J, Pan Y, Jiang B, Liu Q, Li Y. Differential physiological responses and tolerance to potentially toxic elements in Primula forbesii Franch. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:67200-67216. [PMID: 37106307 DOI: 10.1007/s11356-023-27259-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/28/2022] [Accepted: 04/23/2023] [Indexed: 05/25/2023]
Abstract
Environmental pollution caused by potentially toxic elements (PTEs) has become a global problem that endangers environmental sustainability due to industrial, agricultural, and urban pollution. Primula forbesii Franch. (a synonym of Primula filipes G. Watt.) is a biennial flower native to China with excellent stress resistance and ornamental value. In this study, we examined the phenotypic traits, growth indexes, and physiological properties of P. forbesii in response to five representative PTEs (Cd, Ni, Cr(III), Cu, and Zn) under hydroponic culture conditions. High concentrations of Zn and Cr had little effect on the growth and physiological properties of P. forbesii, indicating that the species has strong tolerance to Zn and Cr stress. Alternatively, high concentrations of Cd, Ni, and Cu seriously affected plant growth and development, resulting in leaf chlorosis and even death, and therefore may have a serious negative impact on the growth of P. forbesii. However, activity levels of some antioxidant enzymes and osmotic regulatory substances remained high, indicating that P. forbesii resisted PTE stress by regulating physiological and biochemical metabolism to a certain extent. Furthermore, principal component analysis and membership function were used to comprehensively evaluate P. forbesii resistance to PTEs. These analyses revealed that P. forbesii exhibits distinct sensitivities and physiological responses to different PTEs and suggested that the resistance to five PTEs in decreasing order is Zn > Cr > Cd > Cu > Ni. These results provide a theoretical basis for the future application of P. forbesii in environments with PTE pollution and may expand its practical utilization.
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Affiliation(s)
- Yin Jia
- College of Landscape Architecture, Sichuan Agricultural University, Chengdu, 611130, China.
| | - Xiancai Yin
- College of Landscape Architecture, Sichuan Agricultural University, Chengdu, 611130, China
| | - Jian Zhao
- College of Landscape Architecture, Sichuan Agricultural University, Chengdu, 611130, China
| | - Yuanzhi Pan
- College of Landscape Architecture, Sichuan Agricultural University, Chengdu, 611130, China
| | - Beibei Jiang
- College of Landscape Architecture, Sichuan Agricultural University, Chengdu, 611130, China
| | - Qinglin Liu
- College of Landscape Architecture, Sichuan Agricultural University, Chengdu, 611130, China
| | - Yifeng Li
- College of Landscape Architecture, Sichuan Agricultural University, Chengdu, 611130, China
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Tumuklu A, Sunkari ED, Yalcin F, Ozer Atakoglu O. Data analysis of the Gumusler Dam Lake Reservoir soils using multivariate statistical methods (Nigde, Türkiye). INTERNATIONAL JOURNAL OF ENVIRONMENTAL SCIENCE AND TECHNOLOGY 2023; 20:5391-5404. [DOI: 10.1007/s13762-022-04519-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/09/2022] [Revised: 08/23/2022] [Accepted: 08/26/2022] [Indexed: 06/23/2023]
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40
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Zhou J, Moore RET, Rehkämper M, Kreissig K, Coles B, Sun Y, Li Z, Luo Y, Christie P, Wu L. Zinc Supply Affects Cadmium Uptake and Translocation in the Hyperaccumulator Sedum Plumbizincicola as Evidenced by Isotope Fractionation. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2023; 57:5891-5902. [PMID: 36988089 DOI: 10.1021/acs.est.2c08220] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/19/2023]
Abstract
This study employs stable isotope analysis to investigate the mechanisms of cadmium (Cd) and zinc (Zn) interaction in the metal hyperaccumulating plant species Sedum plumbizincicola. To this end, the Cd and Zn isotope compositions of root, stem, leaf, and xylem sap samples were determined during metal uptake and translocation at different Cd and Zn concentrations. The enrichment of light isotopes of both elements in plants during uptake was less pronounced at low metal supply levels, likely reflecting the switch from a low-affinity to a high-affinity transport system at lower levels of external metal supply. The lower δ114/110Cd values of xylem sap when treated with a metabolic inhibitor decreasing the active Cd uptake further supports the preference of heavier Cd isotopes during high-affinity transport. The Δ66Znplant-initial solution or Δ66Znplant-final solution values were similar at different Cd concentrations, indicating negligible interaction of Cd in the Zn uptake process. However, decreasing Zn supply levels significantly increased the enrichment of light Cd isotopes in plants (Δ114/110Cd = -0.08‰) in low-Cd treatments but reduced the enrichment of light Cd isotopes in plants (Δ114/110Cd = 0.08‰) under high Cd conditions. A systematic enrichment of heavy Cd and light Zn isotopes was found in root-to-shoot translocation of the metals. The Cd concentrations of the growth solutions thereby had no significant impact on Zn isotope fractionation during root-to-shoot translocation. However, the Δ114/110Cdtranslocation values hint at possible competition between Cd and Zn for transporters during root-to-shoot transfer and this may impact the transport pathway of Cd. The stable isotope data demonstrate that the interactions between the two metals influenced the uptake and transport mechanisms of Cd in S. plumbizincicola but had little effect on those of Zn.
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Affiliation(s)
- Jiawen Zhou
- CAS Key Laboratory of Soil Environment and Pollution Remediation, Institute of Soil Science, Chinese Academy of Sciences, Nanjing 210008, China
| | - Rebekah E T Moore
- Department of Earth Science & Engineering, Imperial College London, London SW7 2AZ, United Kingdom
| | - Mark Rehkämper
- Department of Earth Science & Engineering, Imperial College London, London SW7 2AZ, United Kingdom
| | - Katharina Kreissig
- Department of Earth Science & Engineering, Imperial College London, London SW7 2AZ, United Kingdom
| | - Barry Coles
- Department of Earth Science & Engineering, Imperial College London, London SW7 2AZ, United Kingdom
| | - Yufang Sun
- Soil & Environment Analysis Center, Institute of Soil Science, Chinese Academy of Sciences, Nanjing 210008, China
| | - Zhu Li
- CAS Key Laboratory of Soil Environment and Pollution Remediation, Institute of Soil Science, Chinese Academy of Sciences, Nanjing 210008, China
| | - Yongming Luo
- CAS Key Laboratory of Soil Environment and Pollution Remediation, Institute of Soil Science, Chinese Academy of Sciences, Nanjing 210008, China
| | - Peter Christie
- CAS Key Laboratory of Soil Environment and Pollution Remediation, Institute of Soil Science, Chinese Academy of Sciences, Nanjing 210008, China
| | - Longhua Wu
- CAS Key Laboratory of Soil Environment and Pollution Remediation, Institute of Soil Science, Chinese Academy of Sciences, Nanjing 210008, China
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41
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Bai S, Han X, Feng D. Shoot-root signal circuit: Phytoremediation of heavy metal contaminated soil. FRONTIERS IN PLANT SCIENCE 2023; 14:1139744. [PMID: 36890896 PMCID: PMC9987563 DOI: 10.3389/fpls.2023.1139744] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/07/2023] [Accepted: 02/08/2023] [Indexed: 06/18/2023]
Abstract
High concentrations of heavy metals in the environment will cause serious harm to ecosystems and human health. It is urgent to develop effective methods to control soil heavy metal pollution. Phytoremediation has advantages and potential for soil heavy metal pollution control. However, the current hyperaccumulators have the disadvantages of poor environmental adaptability, single enrichment species and small biomass. Based on the concept of modularity, synthetic biology makes it possible to design a wide range of organisms. In this paper, a comprehensive strategy of "microbial biosensor detection - phytoremediation - heavy metal recovery" for soil heavy metal pollution control was proposed, and the required steps were modified by using synthetic biology methods. This paper summarizes the new experimental methods that promote the discovery of synthetic biological elements and the construction of circuits, and combs the methods of producing transgenic plants to facilitate the transformation of constructed synthetic biological vectors. Finally, the problems that should be paid more attention to in the remediation of soil heavy metal pollution based on synthetic biology were discussed.
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Affiliation(s)
- Shiyan Bai
- College of Biological Science and Engineering, Fuzhou University, Fujian, China
| | - Xiao Han
- College of Biological Science and Engineering, Fuzhou University, Fujian, China
| | - Dan Feng
- Biotechnology Research Institute, Chinese Academy of Agricultural Sciences, Beijing, China
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Xie H, Tian X, He L, Li J, Cui L, Cong X, Tang B, Zhang Y, Guo Z, Zhou A, Chen D, Wang L, Zhao J, Yu YL, Li B, Li YF. Spatial Metallomics Reveals Preferable Accumulation of Methylated Selenium in a Single Seed of the Hyperaccumulator Cardamine violifolia†. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2023; 71:2658-2665. [PMID: 36695191 DOI: 10.1021/acs.jafc.2c08112] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/17/2023]
Abstract
Cardamine violifolia is a Se hyperaccumulator found in Enshi, China. In this study, spatial metallomics was applied to visualize the distribution and speciation of Se in a single seed of C. violifolia. It was found that Se reached 1729.89 ± 28.14 mg/kg and the main Se species were SeCys and SeMet in bulk seeds. Further in situ study on a single seed found that the methylated Se species located mostly in the episperm. This is the first visualized evidence of the in situ distribution of methylated Se species in the seeds of C. violifolia. In all, spatial metallomics finds a preferable accumulation of methylated Se species in the seed coat, which deepens the understanding of the tolerance of Se by C. violifolia. The protocol applied in this study may also be used for the understanding of the tolerance of heavy metals/metalloids in other hyperaccumulators.
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Affiliation(s)
- Hongxin Xie
- CAS-HKU Joint Laboratory of Metallomics on Health and Environment, and CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, and Beijing Metallomics Facility, and National Consortium for Excellence in Metallomics, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China
- Department of Chemistry, College of Sciences, Northeastern University, Shenyang 110819, Liaoning, China
| | - Xue Tian
- CAS-HKU Joint Laboratory of Metallomics on Health and Environment, and CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, and Beijing Metallomics Facility, and National Consortium for Excellence in Metallomics, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China
- Department of Chemistry, College of Sciences, Northeastern University, Shenyang 110819, Liaoning, China
| | - Lina He
- CAS-HKU Joint Laboratory of Metallomics on Health and Environment, and CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, and Beijing Metallomics Facility, and National Consortium for Excellence in Metallomics, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China
- College of Environmental Science and Engineering, and State Key Laboratory of Pollution Control and Resource Reuse, Tongji University, Shanghai 200092, China
| | - Jincheng Li
- CAS-HKU Joint Laboratory of Metallomics on Health and Environment, and CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, and Beijing Metallomics Facility, and National Consortium for Excellence in Metallomics, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China
- College of Mechanical Engineering, and National Consortium for Excellence in Metallomics, Guangxi University, Nanning 530004, Guangxi, China
| | - Liwei Cui
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Xin Cong
- Enshi Se-Run Material Engineering Technology Co., Ltd., Enshi 445000, Hubei, China
| | - Bochong Tang
- Shimadzu China Innovation Center, Beijing 100020, China
| | - Yi Zhang
- University of Chinese Academy of Sciences, Beijing 100049, China
- Beijing Synchrotron Radiation Facility, and High Energy Photon Source, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China
| | - Zhiying Guo
- University of Chinese Academy of Sciences, Beijing 100049, China
- Beijing Synchrotron Radiation Facility, and High Energy Photon Source, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China
| | - Aiyu Zhou
- University of Chinese Academy of Sciences, Beijing 100049, China
- Beijing Synchrotron Radiation Facility, and High Energy Photon Source, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China
| | - Dongliang Chen
- University of Chinese Academy of Sciences, Beijing 100049, China
- Beijing Synchrotron Radiation Facility, and High Energy Photon Source, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China
| | - Liming Wang
- CAS-HKU Joint Laboratory of Metallomics on Health and Environment, and CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, and Beijing Metallomics Facility, and National Consortium for Excellence in Metallomics, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Jiating Zhao
- CAS-HKU Joint Laboratory of Metallomics on Health and Environment, and CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, and Beijing Metallomics Facility, and National Consortium for Excellence in Metallomics, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Yong-Liang Yu
- Department of Chemistry, College of Sciences, Northeastern University, Shenyang 110819, Liaoning, China
| | - Bai Li
- CAS-HKU Joint Laboratory of Metallomics on Health and Environment, and CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, and Beijing Metallomics Facility, and National Consortium for Excellence in Metallomics, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China
| | - Yu-Feng Li
- CAS-HKU Joint Laboratory of Metallomics on Health and Environment, and CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, and Beijing Metallomics Facility, and National Consortium for Excellence in Metallomics, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China
- University of Chinese Academy of Sciences, Beijing 100049, China
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He T, Zhang M, Jin B. Co-pyrolysis of sewage sludge as additive with phytoremediation residue on the fate of heavy metals and the carbon sequestration potential of derived biochar. CHEMOSPHERE 2023; 314:137646. [PMID: 36581119 DOI: 10.1016/j.chemosphere.2022.137646] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/20/2022] [Revised: 12/18/2022] [Accepted: 12/22/2022] [Indexed: 06/17/2023]
Abstract
Considering the characteristics of municipal sewage sludge (MS) and Sedum alfreddi L. (SA, a hyperaccumulator plant), we attempted to use MS to enhance the enrichment and stability of heavy metals (HMs) in pyrolysis residue during SA pyrolysis. The effects of pyrolysis temperature (400-800 °C) and co-pyrolysis on migration behavior, chemical speciation, long-term leaching toxicity of HMs, and the environmental risk and carbon sequestration potential of biochar were systematically investigated. Besides, thermodynamic equilibrium simulations were performed to study the transformation of HM compounds during pyrolysis. When the pyrolysis temperature increased from 400 °C to 800 °C, the unstable fractions (F1+F2) of Cd, Pb, Cu, and Cr in MS1SA3 800 had decreased to less than 6% and Zn to 20.4%, and long-term leachability of HMs decreased continuously. Meanwhile, biochar's ecological risk was reduced to a low level, while its carbon sequestration potential improved with little released HMs. Compared with SA pyrolysis alone, adding MS increased the relative residue content of Cd and Zn in biochar, whereas no apparent effect on Pb, Cu, and Cr, and the proportion of stable fractions (F3+F4) increased. Co-pyrolysis enhanced the carbon sequestration potential of biochar, attributed to the inherent minerals of MS. Equilibrium calculations showed that the influence of MS on the fate of HMs during SA pyrolysis is mainly attributed to its high sulfur content, while Si and Al preferentially combine with alkali metal (K)/alkaline earth metal (Ca) and then interact with Zn. The findings in this paper suggest that co-pyrolysis of MS as an additive with hyperaccumulator plants is a feasible proposal, and the co-pyrolysis biochar obtained at suitable temperatures has the potential for safe application.
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Affiliation(s)
- Tengfei He
- Key Laboratory of Energy Thermal Conversion and Control of Ministry of Education, Southeast University, Nanjing, Jiangsu 210096, China
| | - Mengjie Zhang
- Key Laboratory of Energy Thermal Conversion and Control of Ministry of Education, Southeast University, Nanjing, Jiangsu 210096, China
| | - Baosheng Jin
- Key Laboratory of Energy Thermal Conversion and Control of Ministry of Education, Southeast University, Nanjing, Jiangsu 210096, China.
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Wang X, Wang W, Wang L, Wang G, You Y, Ma F. Process analysis of asymmetric interaction between copper and atrazine in a system of macrophytes. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 857:159652. [PMID: 36280074 DOI: 10.1016/j.scitotenv.2022.159652] [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: 08/04/2022] [Revised: 10/13/2022] [Accepted: 10/19/2022] [Indexed: 06/16/2023]
Abstract
To clarify the mutual influence and inner processes between heavy-metal and pesticide pollutants, single copper and atrazine as well as binary mixtures were spiked in a system of aquatic Acorus tatarinowi Schott. The results show that: the total copper amount in roots was 23.31 and 41.46 times as much as those in leaves in single and co-contaminated copper pollution. In the solution, the copper removal reached equilibrium in 3 days. Atrazine raised plant-mediated copper removal by 20.69 % by calculating mass balance, and the increase in pH value and organic matter and the decrease of nitrate in solutions were key factors driving it. Correlation analysis demonstrated that the pH increase was mainly caused by the decline of nitrate and increases in organic matter in the solution. Hydroxyl units on the surface of organic matter in solutions provided binding sites for Cu2+, which was demonstrated by CO and OH peak position alterations in Fourier Transform Infrared Spectrometer. In turn, the root contained 2.56 and 2.04 times as much as atrazine in leaves in single and co-contaminated atrazine treatments. In the solution, atrazine removal became stable after 7 days. Cu2+ inhibited the total accumulation of atrazine in plants by 12.5 %. Copper-induced biological phenol-like components in solution decreased the total atrazine accumulation in A. tatatinowii.
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Affiliation(s)
- Xin Wang
- State Key Laboratory of Urban Water Resource and Environment, School of Environment, Harbin Institute of Technology, Harbin, China
| | | | - Li Wang
- State Key Laboratory of Urban Water Resource and Environment, School of Environment, Harbin Institute of Technology, Harbin, China.
| | - Gen Wang
- State Key Laboratory of Urban Water Resource and Environment, School of Environment, Harbin Institute of Technology, Harbin, China
| | - Yongqiang You
- State Key Laboratory of Urban Water Resource and Environment, School of Environment, Harbin Institute of Technology, Harbin, China
| | - Fang Ma
- State Key Laboratory of Urban Water Resource and Environment, School of Environment, Harbin Institute of Technology, Harbin, China
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Shi L, Li J, Palansooriya KN, Chen Y, Hou D, Meers E, Tsang DCW, Wang X, Ok YS. Modeling phytoremediation of heavy metal contaminated soils through machine learning. JOURNAL OF HAZARDOUS MATERIALS 2023; 441:129904. [PMID: 36096061 DOI: 10.1016/j.jhazmat.2022.129904] [Citation(s) in RCA: 32] [Impact Index Per Article: 32.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/12/2022] [Revised: 08/24/2022] [Accepted: 09/01/2022] [Indexed: 06/15/2023]
Abstract
As an important subtopic within phytoremediation, hyperaccumulators have garnered significant attention due to their ability of super-enriching heavy metals. Identifying the factors that affecting phytoextraction efficiency has important application value in guiding the efficient remediation of heavy metal contaminated soil. However, it is challenging to identify the critical factors that affect the phytoextraction of heavy metals in soil-hyperaccumulator ecosystems because the current projections on phytoremediation extrapolations are rudimentary at best using simple linear models. Here, machine learning (ML) approaches were used to predict the important factors that affecting phytoextraction efficiency of hyperaccumulators. ML analysis was based on 173 data points with consideration of soil properties, experimental conditions, plant families, low-molecular-weight organic acids from plants, plant genes, and heavy metal properties. Heavy metal properties, especially the metal ion radius, were the most important factors that affect heavy metal accumulation in shoots, and the plant family was the most important factor that affect the bioconcentration factor, metal extraction ratio, and remediation time. Furthermore, the Crassulaceae family had the highest potential as hyperaccumulators for phytoremediation, which was related to the expression of genes encoding heavy metal transporting ATPase (HMA), Metallothioneins (MTL), and natural resistance associated macrophage protein (NRAMP), and also the secretion of malate and threonine. New insights into the effects of plant characteristics, experimental conditions, soil characteristics, and heavy metal properties on phytoextraction efficiency from ML model interpretation could guide the efficient phytoremediation by identifying the best hyperaccumulators and resolving its efficient remediation mechanisms.
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Affiliation(s)
- Liang Shi
- Korea Biochar Research Center, APRU Sustainable Waste Management Program & Division of Environmental Science and Ecological Engineering, Korea University, Seoul 02841, South Korea; College of Life Sciences, Nanjing Agricultural University, Nanjing 210095, China
| | - Jie Li
- Department of Chemical and Biomolecular Engineering, National University of Singapore, Singapore 117585, Singapore; CAS Key Laboratory of Urban Pollutant Conversion, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen 361021, China
| | - Kumuduni Niroshika Palansooriya
- Korea Biochar Research Center, APRU Sustainable Waste Management Program & Division of Environmental Science and Ecological Engineering, Korea University, Seoul 02841, South Korea; State Key Laboratory of Subtropical Silviculture, Zhejiang A&F University, Hangzhou 311300, China
| | - Yahua Chen
- College of Life Sciences, Nanjing Agricultural University, Nanjing 210095, China
| | - Deyi Hou
- School of Environment, Tsinghua University, Beijing 100084, China
| | - Erik Meers
- Department of Green Chemistry & Technology, Faculty of Bioscience Engineering, Ghent University, Coupure Links 653, 9000 Ghent, Belgiu
| | - Daniel C W Tsang
- Department of Civil and Environmental Engineering, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong, China
| | - Xiaonan Wang
- Department of Chemical Engineering, Tsinghua University, Beijing 100084, China.
| | - Yong Sik Ok
- Korea Biochar Research Center, APRU Sustainable Waste Management Program & Division of Environmental Science and Ecological Engineering, Korea University, Seoul 02841, South Korea.
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Niu X, Jia Y, Wu X, Wang S, Hou J, Zhang W. Phytoremediation potential of indigenous plants growing in soils affected by mine activities in Gejiu City, Yunnan Province. INTERNATIONAL JOURNAL OF PHYTOREMEDIATION 2023; 25:880-888. [PMID: 36048899 DOI: 10.1080/15226514.2022.2117789] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/12/2023]
Abstract
Indigenous plants growing in mining spoils for phytoremediation have attracted great interest. To search the suitable plants, six plant species popular in the mine slag heaps of Gejiu City were collected and metal concentrations in plants and rhizosphere soils were analyzed. Results showed that the soils were greatly influenced by mine activities and heavy metal contents in plants were dependent upon those in the rhizosphere soils. However, the adaptation strategies varied among them. Bothriochloa ischcemum (Linn.) Keng and Equisetum ramosissimum Desf. had the Cr bioaccumulation factor (BAF) of 1.48 and 1.34, respectively, even though the rhizosphere soils were not contaminated by Cr. However, B. ischaemum and Agave americana Linn. showed the BAF for Pb, Zn Cu and Sn < 1.0, and Cyperus rotundus Linn. showed the similarly low BAF for Zn and Cu. Therefore, the three species had a great tolerance to phytostabilize these metals. Gymnema sylvestre (Retz.) Schult showed the translocation factor (TF) > 1.0 for Pb, Cu and Sn, so translocating these metals to the aboveground parts would be a feasible option. Similarly, Euphorbia cyathophora Murr. demonstrated the high phytotranslocate capacity for Cd and Sn, so it could be employed to remedy Cd and Sn-contaminated soils.
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Affiliation(s)
- Xuekui Niu
- Yunnan Research Academy of Ecological and Environmental Science, Kunming, P.R. China
- Faculty of Environmental Science and Engineering, Kunming University of Science and Technology, Kunming, P.R. China
| | - Yanming Jia
- School of Environmental Science and Engineering, Sun Yat-sen University, Guangzhou, P.R. China
| | - Xueyong Wu
- Yunnan Research Academy of Ecological and Environmental Science, Kunming, P.R. China
| | - Shuting Wang
- Yunnan Research Academy of Ecological and Environmental Science, Kunming, P.R. China
| | - Juan Hou
- Yunnan Research Academy of Ecological and Environmental Science, Kunming, P.R. China
| | - Weihua Zhang
- School of Environmental Science and Engineering, Sun Yat-sen University, Guangzhou, P.R. China
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LIU X, ZHANG W, FEI T, HU X, HU Z, JIN S. Extraction of Seleno-Amino Acids from <i>Cardamine Hupingshanensis</i> by Ultrasonic Assisted Deep Eutectic Solvents Extraction. SOLVENT EXTRACTION RESEARCH AND DEVELOPMENT-JAPAN 2023. [DOI: 10.15261/serdj.30.47] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/29/2023]
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Qi Z, Han Y, Afrane S, Liu X, Zhang M, Crittenden J, Chen JL, Mao G. Patent mining on soil pollution remediation technology from the perspective of technological trajectory. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2023; 316:120661. [PMID: 36403878 DOI: 10.1016/j.envpol.2022.120661] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/07/2022] [Revised: 10/21/2022] [Accepted: 11/11/2022] [Indexed: 06/16/2023]
Abstract
Recent years have seen a marked growth in soil environmental problems, however, the research & development (R&D) direction of soil pollution remediation technology (SPRT) for addressing related challenges to the global ecosystem is still unclear. Patent is the most effective carrier of technological information. Therefore, this study investigates the status and future direction of SPRT through the analysis and mining of 14,475 patents from 1971 to 2020. In 2006-2020, 14,435 SPRT patents (79% of the total) were published, which is in the development stage. By measuring the proportion of high-value patents, determined by the ratio of the number of patent families containing two or more patents (PF2) to that containing at least one patent (PF1), we found that United States (PF2/PF1 = 0.711), Japan (PF2/PF1 = 0.500), and South Korea (PF2/PF1 = 0.431) hold a monopoly. International patent organizations serve as a bridge for technology transfer. Patent CN101947539-A measured by structural hole index (Effective size = 98.194, Efficiency = 0.926) has the most significant technological influence. Therefore, in order to accomplish the technological transition and improve the soil remediation capacity, more attention should be paid to the microbial-assisted phytoremediation technology related to inorganic pollutants, hyperaccumulators and stabilizers. Additionally, patents CN102834190-A (Effective size = 23.930, Efficiency = 0.855, Constraint = 0.141, Hierarchy = 0.089) and CN105855289 (Effective size = 21.453, Efficiency = 0.795 Constraint = 0.149, Hierarchy = 0.086) are both at the location of structural holes. So, more research should be carried out on green and cost-effective solutions for reducing organic pollutants in soil remediation. The current study identifies opportunities for innovations and breakthroughs in SPRT and offers relevant information on technological development prospects.
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Affiliation(s)
- Zefeng Qi
- School of Environmental Science and Engineering, Tianjin University, Tianjin, 300350, China; Center for Green Buildings and Sponge Cities, Georgia Tech Tianjin University Shenzhen Institute, Shenzhen, Guangdong, 518071, China
| | - Yixin Han
- Shandong National Standards Technical Review and Assessment Center, Jinan, 250002, China
| | - Sandylove Afrane
- School of Environmental Science and Engineering, Tianjin University, Tianjin, 300350, China; Center for Green Buildings and Sponge Cities, Georgia Tech Tianjin University Shenzhen Institute, Shenzhen, Guangdong, 518071, China
| | - Xi Liu
- Institute of Blue and Green Development, Shandong University, Weihai, 264209, China.
| | - Mingqi Zhang
- School of Environmental Science and Engineering, Tianjin University, Tianjin, 300350, China; Center for Green Buildings and Sponge Cities, Georgia Tech Tianjin University Shenzhen Institute, Shenzhen, Guangdong, 518071, China
| | - John Crittenden
- Brook Byers Institute for Sustainable Systems, School of Civil and Environmental Engineering, Georgia Institute of Technology, Atlanta, GA, USA
| | - Jian Lin Chen
- Department of Science, School of Science and Technology, Hong Kong Metropolitan University, Good Shepherd Street, Ho Man Tin, Hong Kong SAR, China; Shenzhen Research Institute of City University of Hong Kong, Shenzhen, China; State Key Laboratory of Marine Pollution and Department of Chemistry, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong, China
| | - Guozhu Mao
- School of Environmental Science and Engineering, Tianjin University, Tianjin, 300350, China; Center for Green Buildings and Sponge Cities, Georgia Tech Tianjin University Shenzhen Institute, Shenzhen, Guangdong, 518071, China
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Han TL, Tang TW, Zhang PH, Liu M, Zhao J, Peng JS, Meng S. Cloning and Functional Characterization of SpZIP2. Genes (Basel) 2022; 13:genes13122395. [PMID: 36553665 PMCID: PMC9778510 DOI: 10.3390/genes13122395] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2022] [Accepted: 12/14/2022] [Indexed: 12/23/2022] Open
Abstract
Zinc (Zn)-regulated and iron (Fe)-regulated transporter-like proteins (ZIP) are key players involved in the accumulation of cadmium (Cd) and Zn in plants. Sedum plumbizincicola X.H. Guo et S.B. Zhou ex L.H. Wu (S. plumbizincicola) is a Crassulaceae Cd/Zn hyperaccumulator found in China, but the role of ZIPs in S. plumbizincicola remains largely unexplored. Here, we identified 12 members of ZIP family genes by transcriptome analysis in S. plumbizincicola and cloned the SpZIP2 gene with functional analysis. The expression of SpZIP2 in roots was higher than that in the shoots, and Cd stress significantly decreased its expression in the roots but increased its expression in leaves. Protein sequence characteristics and structural analysis showed that the content of alanine and leucine residues in the SpZIP2 sequence was higher than other residues, and several serine, threonine and tyrosine sites can be phosphorylated. Transmembrane domain analysis showed that SpZIP2 has the classic eight transmembrane regions. The evolutionary analysis found that SpZIP2 is closely related to OsZIP2, followed by AtZIP11, OsZIP1 and AtZIP2. Sequence alignment showed that most of the conserved sequences among these members were located in the transmembrane regions. A further metal sensitivity assay using yeast mutant Δyap1 showed that the expression of SpZIP2 increased the sensitivity of the transformants to Cd but failed to change the resistance to Zn. The subsequent ion content determination showed that the expression of SpZIP2 increased the accumulation of Cd in yeast. Subcellular localization showed that SpZIP2 was localized to membrane systems, including the plasma membrane and endoplasmic reticulum. The above results indicate that ZIP member SpZIP2 participates in the uptake and accumulation of Cd into cells and might contribute to Cd hyperaccumulation in S. plumbizincicola.
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Affiliation(s)
- Tian-Long Han
- College of Agronomy, Hunan Agricultural University, Changsha 410128, China
| | - Ting-Wei Tang
- College of Agronomy, Hunan Agricultural University, Changsha 410128, China
| | - Pei-Hong Zhang
- School of Life and Health Sciences, Hunan University of Science and Technology, Xiangtan 411201, China
| | - Min Liu
- Xiaoxiang College, Hunan University of Science and Technology, Xiangtan 411201, China
| | - Jing Zhao
- College of Bioscience and Biotechnology, Hunan Agricultural University, Changsha 410128, China
| | - Jia-Shi Peng
- School of Life and Health Sciences, Hunan University of Science and Technology, Xiangtan 411201, China
- Correspondence: (J.-S.P.); (S.M.)
| | - Shuan Meng
- College of Agronomy, Hunan Agricultural University, Changsha 410128, China
- Hunan Provincial Key Laboratory of Rice Stress Biology, Changsha 410128, China
- Correspondence: (J.-S.P.); (S.M.)
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50
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Li X, Li B, Jin T, Chen H, Zhao G, Qin X, Yang Y, Xu J. Rhizospheric microbiomics integrated with plant transcriptomics provides insight into the Cd response mechanisms of the newly identified Cd accumulator Dahlia pinnata. FRONTIERS IN PLANT SCIENCE 2022; 13:1091056. [PMID: 36589044 PMCID: PMC9798219 DOI: 10.3389/fpls.2022.1091056] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/06/2022] [Accepted: 12/02/2022] [Indexed: 06/17/2023]
Abstract
Phytoremediation that depends on excellent plant resources and effective enhancing measures is important for remediating heavy metal-contaminated soils. This study investigated the cadmium (Cd) tolerance and accumulation characteristics of Dahlia pinnata Cav. to evaluate its Cd phytoremediation potential. Testing in soils spiked with 5-45 mg kg-1 Cd showed that D. pinnata has a strong Cd tolerance capacity and appreciable shoot Cd bioconcentration factors (0.80-1.32) and translocation factors (0.81-1.59), indicating that D. pinnata can be defined as a Cd accumulator. In the rhizosphere, Cd stress (45 mg kg-1 Cd) did not change the soil physicochemical properties but influenced the bacterial community composition compared to control conditions. Notably, the increased abundance of the bacterial phylum Patescibacteria and the dominance of several Cd-tolerant plant growth-promoting rhizobacteria (e.g., Sphingomonas, Gemmatimonas, Bryobacter, Flavisolibacter, Nocardioides, and Bradyrhizobium) likely facilitated Cd tolerance and accumulation in D. pinnata. Comparative transcriptomic analysis showed that Cd significantly induced (P < 0.001) the expression of genes involved in lignin synthesis in D. pinnata roots and leaves, which are likely to fix Cd2+ to the cell wall and inhibit Cd entry into the cytoplasm. Moreover, Cd induced a sophisticated signal transduction network that initiated detoxification processes in roots as well as ethylene synthesis from methionine metabolism to regulate Cd responses in leaves. This study suggests that D. pinnata can be potentially used for phytoextraction and improves our understanding of Cd-response mechanisms in plants from rhizospheric and molecular perspectives.
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Affiliation(s)
- Xiong Li
- Department of Economic Plants and Biotechnology, Yunnan Key Laboratory for Wild Plant Resources, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, China
- Center for Mountain Futures, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, China
- Germplasm Bank of Wild Species, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, China
| | - Boqun Li
- Science and Technology Information Center, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, China
| | - Tao Jin
- Science and Technology Information Center, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, China
| | - Huafang Chen
- Department of Economic Plants and Biotechnology, Yunnan Key Laboratory for Wild Plant Resources, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, China
- Center for Mountain Futures, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, China
| | - Gaojuan Zhao
- Department of Economic Plants and Biotechnology, Yunnan Key Laboratory for Wild Plant Resources, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, China
- Center for Mountain Futures, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, China
| | - Xiangshi Qin
- Germplasm Bank of Wild Species, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, China
| | - Yongping Yang
- Germplasm Bank of Wild Species, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, China
- Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences, Xishuangbanna, China
| | - Jianchu Xu
- Department of Economic Plants and Biotechnology, Yunnan Key Laboratory for Wild Plant Resources, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, China
- Center for Mountain Futures, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, China
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