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Li X, Lin S, Ouvrard S, Sirguey C, Qiu R, Wu B. Environmental remediation potential of a pioneer plant (Miscanthus sp.) from abandoned mine into biochar: Heavy metal stabilization and environmental application. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2024; 366:121751. [PMID: 38972191 DOI: 10.1016/j.jenvman.2024.121751] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/30/2024] [Revised: 07/01/2024] [Accepted: 07/04/2024] [Indexed: 07/09/2024]
Abstract
Pyrolysis stands out as an effective method for the disposal of phytoremediation residues in abandoned mines, yielding a valuable by-product, biochar. However, the environmental application of biochar derived from such residues is limited by the potential environmental risks of heavy metals. Herein, Miscanthus sp. residues from abandoned mines were pyrolyzed into biochars at varied pyrolysis temperatures (300-700 °C) to facilitate the safe reuse of phytoremediation residues. The results showed that pyrolysis significantly stabilizes heavy metals in biomass, with Cd exhibiting the most notable stabilization effect. Acid-soluble/exchangeable and reducible fractions of Cd decreased significantly from 69.91 % to 2.52 %, and oxidizable and residue fractions increased approximately 3.24 times at 700 °C. The environmental risk assessment indicated that biochar pyrolyzed over 500 °C pose lower environmental risk (RI < 30), making them optimal for the safe utilization of phytoremediation residues. Additionally, adsorption experiments suggested that biochars prepared at higher temperature (500-700 °C) exhibit superior adsorption capacity, attributed to alkalinity and precipitation effect. This study highlights that biochars produced by pyrolyzing Miscanthus sp. from abandoned mines above 500 °C hold promise for environmental remediation, offering novel insight into the reutilization of metal-rich biomass.
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Affiliation(s)
- Xiao Li
- Guangdong Laboratory for Lingnan Modern Agriculture, Guangdong Provincial Key Laboratory of Agricultural & Rural Pollution Abatement and Environmental Safety, College of Natural Resources and Environment, South China Agricultural University, Guangzhou, 510642, China
| | - Shukun Lin
- Guangdong Laboratory for Lingnan Modern Agriculture, Guangdong Provincial Key Laboratory of Agricultural & Rural Pollution Abatement and Environmental Safety, College of Natural Resources and Environment, South China Agricultural University, Guangzhou, 510642, China
| | | | | | - Rongliang Qiu
- Guangdong Laboratory for Lingnan Modern Agriculture, Guangdong Provincial Key Laboratory of Agricultural & Rural Pollution Abatement and Environmental Safety, College of Natural Resources and Environment, South China Agricultural University, Guangzhou, 510642, China; School of Environmental Science and Engineering, Sun Yat-sen University, Guangzhou, 510006, China.
| | - Bohan Wu
- Guangdong Laboratory for Lingnan Modern Agriculture, Guangdong Provincial Key Laboratory of Agricultural & Rural Pollution Abatement and Environmental Safety, College of Natural Resources and Environment, South China Agricultural University, Guangzhou, 510642, China.
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Fang K, He Y, Xu J, Shi J. Synchronous influence of soil amendments on alkylmercury and methane emissions in mercury-contaminated paddy soil. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 946:174415. [PMID: 38969116 DOI: 10.1016/j.scitotenv.2024.174415] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/07/2024] [Revised: 06/25/2024] [Accepted: 06/29/2024] [Indexed: 07/07/2024]
Abstract
Mercury (Hg) alkylation and methane (CH4) emissions pose significant global concerns. Paddy soil, due to its long-term anaerobic conditions and abundant organic matter, is hotspots for soil Hg alkylation and CH4 emissions. However, the relevance between Hg alkylation and CH4 emissions, especially their simultaneous reduction strategies, remains poorly understood. Here, we investigated the effects of biochar (BC), selenium (Se) and rice straw (RS) amendments on Hg alkylation and CH4 emissions in paddy soil, and the accumulation of Hg speciation. Results found that both BC and RS amendments significantly increased the levels of soil organic carbon (SOC) and humification index (HIX). Furthermore, BC decreased the concentrations of Hg(II), methylmercury (MeHg) and ethylmercury (EtHg) by 63.1%, 53.6% and 100% in rice grains. However, RS increased Hg(II) concentration but decreased the total Hg (THg), MeHg and EtHg concentrations in rice grains. Compared to the CK, RS significantly increased CH4 emissions, while BC decreased CH4 emissions, and Se showed no significant difference. Se amendment increased the Hg(II) and EtHg concentrations by 20.3% and 17.0% respectively, and decreased the MeHg concentration in grains by 58.3%. Both BC and RS impacted the abundance of methanogens by enhancing SOC and HIX, subsequently modulating the relevance between Hg alkylation and CH4 emissions. These findings provide insights into the relevance between Hg alkylation and CH4 emissions and propose potential mitigation mechanisms in Hg-contaminated paddy soil.
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Affiliation(s)
- Kaikai Fang
- Zhejiang Provincial Key Laboratory of Agricultural Resources and Environment, Institute of Soil and Water Resources and Environmental Science, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou 310058, China
| | - Yan He
- Zhejiang Provincial Key Laboratory of Agricultural Resources and Environment, Institute of Soil and Water Resources and Environmental Science, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou 310058, China; Key Laboratory of Environment Remediation and Ecological Health, Ministry of Education, Hangzhou 310058, China
| | - Jianming Xu
- Zhejiang Provincial Key Laboratory of Agricultural Resources and Environment, Institute of Soil and Water Resources and Environmental Science, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou 310058, China
| | - Jiachun Shi
- Zhejiang Provincial Key Laboratory of Agricultural Resources and Environment, Institute of Soil and Water Resources and Environmental Science, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou 310058, China.
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Arrighi S, Franceschini F, Petrini R, Fornasaro S, Ghezzi L. The Legacy of Hg Contamination in a Past Mining Area (Tuscany, Italy): Hg Speciation and Health Risk Assessment. TOXICS 2024; 12:436. [PMID: 38922116 PMCID: PMC11209415 DOI: 10.3390/toxics12060436] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/22/2024] [Revised: 06/10/2024] [Accepted: 06/12/2024] [Indexed: 06/27/2024]
Abstract
The mercury cell manufacturing process, which has been extensively used in chlor-alkali plants to produce chlorine and caustic soda by electrolysis, represents a major source of Hg environmental pollution. At Saline di Volterra (Tuscany, Italy), solution mining by pumping water into halite deposits was applied to produce brines for a mercury-cell chlor-alkali plant. The Hg-contaminated, exhausted brines were pumped back at depth into the rock salt field in order to renew the available resources. Activities ceased in 1994, following the leakage dispersion of highly contaminated Hg(0)-bearing brines into the environment. The mercury content in the soil, measured during a survey conducted in 2000, reached 334 mg/kg, highlighting diffuse contamination in the floodplain. By 2009, the Hg concentration had generally decreased and was mostly confined to the topsoil layer. In order to evaluate the present Hg soil pollution, a geochemical survey was carried out in 2023, almost thirty years after the contamination event. The obtained data indicated the occurrence of legacy Hg, which reached 25.5 mg/kg in some soil samples. Speciation analysis for the most contaminated soil revealed that Hg(0) represented about 17.3% of the total Hg and that water-soluble and organic Hg fractions were negligible. These results suggest that the originally released metallic mercury has volatilized and likely oxidized, becoming practically immobile in the soil. A risk assessment, performed by applying Hg speciation analysis, indicated that the mercury in the soil does not carry a risk of non-cancerous effects for different exposure routes in case of subsequent use of the site and that the formerly contaminated area can now be converted into a leisure area.
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Affiliation(s)
- Simone Arrighi
- Department of Earth Science, University of Pisa, Via S. Maria 53, 56126 Pisa, Italy; (S.A.); (R.P.); (L.G.)
| | - Fabrizio Franceschini
- Environmental Protection Agency of Tuscany (ARPAT), Via Vittorio Veneto, 56127 Pisa, Italy;
| | - Riccardo Petrini
- Department of Earth Science, University of Pisa, Via S. Maria 53, 56126 Pisa, Italy; (S.A.); (R.P.); (L.G.)
| | - Silvia Fornasaro
- Department of Earth Science, University of Pisa, Via S. Maria 53, 56126 Pisa, Italy; (S.A.); (R.P.); (L.G.)
| | - Lisa Ghezzi
- Department of Earth Science, University of Pisa, Via S. Maria 53, 56126 Pisa, Italy; (S.A.); (R.P.); (L.G.)
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Szada-Borzyszkowska A, Krzyżak J, Rusinowski S, Sitko K, Pogrzeba M. Toxic effect of mercury on arbuscular mycorrhizal fungi colonisation and physiological status of three seed-based Miscanthus hybrids. J Trace Elem Med Biol 2024; 83:127391. [PMID: 38219458 DOI: 10.1016/j.jtemb.2024.127391] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/20/2023] [Revised: 01/04/2024] [Accepted: 01/08/2024] [Indexed: 01/16/2024]
Abstract
BACKGROUND Currently, mercury pollution is a widespread problem in the world. As mercury is difficult to remove from the environment, it has long-term negative effects on soil health and human life. One of the techniques to stabilise Hg is phytostabilisation, which can be supported by arbuscular mycorrhizal fungi (AMF). METHODS In a 4-month pot experiment, we investigated the suitability of three seed-based Miscanthus hybrids (GNT3, GNT34, GNT43) for growth on soils heavily polluted with mercury (6795.7 mg kg-1). During the experiment, the effects of high soil contamination with mercury on physiological parameters and colonisation of roots of seed-based Miscanthus hybrids by indigenous AMF from Hg-contaminated and uncontaminated soils were investigated. RESULTS A high pseudo-total Hg concentration (6795.75 mg kg-1) in soil was found. The Hg content in the aerial part of GNT34 grown on Hg-contaminated soil was 1.5 times and 3 times higher than GNT3 and GNT43, respectively. The Hg content in the roots of GNT3 on Hg-contaminated soil was 25% and 10% lower than that of GNT34 and GNT43, respectively. The N content in the aboveground part of GNT34 in the Hg variant was 13.5% lower compared to the control soil. The P and K content in the shoots of the Miscanthus hybrids was lower in the plants grown on Hg-contaminated soil. The P content in GNT43 in the Hg variant was 33% and 19% lower than in GNT34 and GNT3, respectively. The K content in GNT34 in the Hg variant was 24.7% and 31.4% higher than in GNT43 and GNT3, respectively. The dry weight of the shoots and roots as well as the shoot height of the Miscanthus hybrids were lower in Hg-contaminated soil. Lower values of AMF root colonisation parameters (F, M) were observed in the plants in the Hg variant. In the Hg variant, a lower photosynthetic rate and a decrease in chlorophyll content were observed in the leaves of the Miscanthus hybrids. In the Hg variant, an increase in the content of flavonols was observed. The strongest toxic effect of mercury on the light phase of photosynthesis was measured in GNT34. CONCLUSION Soils heavily contaminated with mercury negatively affected the physiological parameters of Miscanthus, as evidenced by a decrease in photosynthetic rate and biomass. The ability of indigenous AMF from Hg-contaminated soils to colonise the roots of seed-based Miscanthus hybrids was limited.
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Affiliation(s)
| | - Jacek Krzyżak
- Institute for Ecology of Industrial Areas, 6 Kossutha St., 40-844 Katowice, Poland
| | - Szymon Rusinowski
- Institute for Ecology of Industrial Areas, 6 Kossutha St., 40-844 Katowice, Poland
| | - Krzysztof Sitko
- Institute for Ecology of Industrial Areas, 6 Kossutha St., 40-844 Katowice, Poland; Plant Ecophysiology Team, University of Silesia in Katowice, 28 Jagiellońska St., 40-032 Katowice, Poland
| | - Marta Pogrzeba
- Institute for Ecology of Industrial Areas, 6 Kossutha St., 40-844 Katowice, Poland.
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Algieri V, Tursi A, Costanzo P, Maiuolo L, De Nino A, Nucera A, Castriota M, De Luca O, Papagno M, Caruso T, Ciurciù S, Corrente GA, Beneduci A. Thiol-functionalized cellulose for mercury polluted water remediation: Synthesis and study of the adsorption properties. CHEMOSPHERE 2024; 355:141891. [PMID: 38575086 DOI: 10.1016/j.chemosphere.2024.141891] [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: 10/21/2023] [Revised: 03/22/2024] [Accepted: 04/01/2024] [Indexed: 04/06/2024]
Abstract
Mercury pollution poses a global health threat due to its high toxicity, especially in seafood where it accumulates through various pathways. Developing effective and affordable technologies for mercury removal from water is crucial. Adsorption stands out as a promising method, but creating low-cost materials with high selectivity and capacity for mercury adsorption is challenging. Here we show a sustainable method to synthesize low-cost sulfhydrylated cellulose with ethylene sulfide functionalities bonded glucose units. Thiol-functionalized cellulose exhibits exceptional adsorption capacity (1325 mg g-1) and selectivity for Hg(II) over other heavy metals (Co, Cu, Zn, Pb) and common cations (Ca++, Mg++) found in natural waters. It performs efficiently across a wide pH range and different aqueous matrices, including wastewater, and can be regenerated and reused multiple times without significant loss of performance. This approach offers a promising solution for addressing mercury contamination in water sources.
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Affiliation(s)
- Vincenzo Algieri
- Laboratorio di Sintesi Organica e Preparazioni Chimiche (LabOrSy), Department of Chemistry and Chemical Technologies, University of Calabria, via P. Bucci, Cubo 12C, 6th floor, 87036, Rende, CS, Italy.
| | - Antonio Tursi
- Laboratory of Physical Chemistry Applied to Smart Materials for Advanced Technologies and Industrial Processes (PC-SMARTech), Department of Chemistry and Chemical Technologies, University of Calabria, via P. Bucci, Cubo 15D, Ground floor, 87036, Rende, CS, Italy
| | - Paola Costanzo
- Laboratorio di Sintesi Organica e Preparazioni Chimiche (LabOrSy), Department of Chemistry and Chemical Technologies, University of Calabria, via P. Bucci, Cubo 12C, 6th floor, 87036, Rende, CS, Italy
| | - Loredana Maiuolo
- Laboratorio di Sintesi Organica e Preparazioni Chimiche (LabOrSy), Department of Chemistry and Chemical Technologies, University of Calabria, via P. Bucci, Cubo 12C, 6th floor, 87036, Rende, CS, Italy
| | - Antonio De Nino
- Laboratorio di Sintesi Organica e Preparazioni Chimiche (LabOrSy), Department of Chemistry and Chemical Technologies, University of Calabria, via P. Bucci, Cubo 12C, 6th floor, 87036, Rende, CS, Italy
| | - Antonello Nucera
- Department of Physics, University of Calabria Ponte Bucci, Cubo 33B, 87036, Rende, Cosenza, Italy; CNR-Nanotec C/o Department of Physics, University of Calabria, Ponte Bucci, Cubo 33B, 87036, Rende, Cosenza, Italy
| | - Marco Castriota
- Department of Physics, University of Calabria Ponte Bucci, Cubo 33B, 87036, Rende, Cosenza, Italy; CNR-Nanotec C/o Department of Physics, University of Calabria, Ponte Bucci, Cubo 33B, 87036, Rende, Cosenza, Italy
| | - Oreste De Luca
- Department of Physics, University of Calabria Ponte Bucci, Cubo 33B, 87036, Rende, Cosenza, Italy; CNR-Nanotec C/o Department of Physics, University of Calabria, Ponte Bucci, Cubo 33B, 87036, Rende, Cosenza, Italy; Laboratorio di Spettroscopia Avanzata dei Materiali, STAR IR, Via Tito Flavio, Università della Calabria, Italy
| | - Marco Papagno
- Department of Physics, University of Calabria Ponte Bucci, Cubo 33B, 87036, Rende, Cosenza, Italy; Laboratorio di Spettroscopia Avanzata dei Materiali, STAR IR, Via Tito Flavio, Università della Calabria, Italy
| | - Tommaso Caruso
- Department of Physics, University of Calabria Ponte Bucci, Cubo 33B, 87036, Rende, Cosenza, Italy; Laboratorio di Spettroscopia Avanzata dei Materiali, STAR IR, Via Tito Flavio, Università della Calabria, Italy
| | - Simona Ciurciù
- Laboratory of Physical Chemistry Applied to Smart Materials for Advanced Technologies and Industrial Processes (PC-SMARTech), Department of Chemistry and Chemical Technologies, University of Calabria, via P. Bucci, Cubo 15D, Ground floor, 87036, Rende, CS, Italy; Laboratory of Chemistry for Environment, Polo Tecnologico SILA, University of Calabria, Via Tito Flavio, 87036, Rende, Cosenza, Italy
| | - Giuseppina Anna Corrente
- Laboratory of Physical Chemistry Applied to Smart Materials for Advanced Technologies and Industrial Processes (PC-SMARTech), Department of Chemistry and Chemical Technologies, University of Calabria, via P. Bucci, Cubo 15D, Ground floor, 87036, Rende, CS, Italy; Laboratory of Chemistry for Environment, Polo Tecnologico SILA, University of Calabria, Via Tito Flavio, 87036, Rende, Cosenza, Italy
| | - Amerigo Beneduci
- Laboratory of Physical Chemistry Applied to Smart Materials for Advanced Technologies and Industrial Processes (PC-SMARTech), Department of Chemistry and Chemical Technologies, University of Calabria, via P. Bucci, Cubo 15D, Ground floor, 87036, Rende, CS, Italy; Laboratory of Chemistry for Environment, Polo Tecnologico SILA, University of Calabria, Via Tito Flavio, 87036, Rende, Cosenza, Italy.
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Kung HC, Wu CH, Huang BW, Chang-Chien GP, Mutuku JK, Lin WC. Mercury abatement in the environment: Insights from industrial emissions and fates in the environment. Heliyon 2024; 10:e28253. [PMID: 38571637 PMCID: PMC10987932 DOI: 10.1016/j.heliyon.2024.e28253] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2023] [Revised: 03/14/2024] [Accepted: 03/14/2024] [Indexed: 04/05/2024] Open
Abstract
Mercury's neurotoxic effects have prompted the development of advanced control and remediation methods to meet stringent measures for industries with high-mercury feedstocks. Industries with significant Hg emissions, including artisanal and small-scale gold mining (ASGM)-789.2 Mg year-1, coal combustion-564.1 Mg year-1, waste combustion-316.1 Mg year-1, cement production-224.5 Mg year-1, and non-ferrous metals smelting-204.1 Mg year-1, use oxidants and adsorbents capture Hg from waste streams. Oxidizing agents such as O3, Cl2, HCl, CaBr2, CaCl2, and NH4Cl oxidize Hg0 to Hg2+ for easier adsorption. To functionalize adsorbents, carbonaceous ones use S, SO2, and Na2S, metal-based adsorbents use dimercaprol, and polymer-based adsorbents are grafted with acrylonitrile and hydroxylamine hydrochloride. Adsorption capacities span 0.2-85.6 mg g-1 for carbonaceous, 0.5-14.8 mg g-1 for metal-based, and 168.1-1216 mg g-1 for polymer-based adsorbents. Assessing Hg contamination in soils and sediments uses bioindicators and stable isotopes. Remediation approaches include heat treatment, chemical stabilization and immobilization, and phytoremediation techniques when contamination exceeds thresholds. Achieving a substantially Hg-free ecosystem remains a formidable challenge, chiefly due to the ASGM industry, policy gaps, and Hg persistence. Nevertheless, improvements in adsorbent technologies hold potential.
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Affiliation(s)
- Hsin-Chieh Kung
- Institute of Environmental Toxin and Emerging-Contaminant Research, Cheng Shiu University, Kaohsiung, 833301, Taiwan
| | - Chien-Hsing Wu
- Division of Nephrology, Department of Internal Medicine, Kaohsiung Chang-Gung Memorial Hospital, Kaohsiung, 83301, Taiwan
- Center for General Education, Cheng Shiu University, Kaohsiung 833301, Taiwan
| | - Bo-Wun Huang
- Department of Mechanical and Institute of Mechatronic Engineering, Cheng Shiu University, Kaohsiung City, 833301, Taiwan
| | - Guo-Ping Chang-Chien
- Institute of Environmental Toxin and Emerging-Contaminant Research, Cheng Shiu University, Kaohsiung, 833301, Taiwan
- Super micro mass research and technology center, Cheng Shiu University, Kaohsiung, 833301, Taiwan
- Center for Environmental Toxin and Emerging-Contaminant Research, Cheng Shiu University, Kaohsiung, 833301, Taiwan
| | - Justus Kavita Mutuku
- Institute of Environmental Toxin and Emerging-Contaminant Research, Cheng Shiu University, Kaohsiung, 833301, Taiwan
- Super micro mass research and technology center, Cheng Shiu University, Kaohsiung, 833301, Taiwan
- Center for Environmental Toxin and Emerging-Contaminant Research, Cheng Shiu University, Kaohsiung, 833301, Taiwan
| | - Wan-Ching Lin
- Department of Neuroradiology, E-Da Hospital, I-Shou University, Kaohsiung, 84001, Taiwan
- Department of Neurosurgery, E-Da Hospital/I-Shou University, Kaohsiung, 84001, Taiwan
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Peng C, Long T, Luo S, Ouyang M, Luo H, Xu D, Lin Q. Visualizing and sorbing Hg(II) with a cellulose-based red fluorescence aerogel: Simultaneous detection and removal. Int J Biol Macromol 2024; 264:130563. [PMID: 38431018 DOI: 10.1016/j.ijbiomac.2024.130563] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2023] [Revised: 02/10/2024] [Accepted: 02/28/2024] [Indexed: 03/05/2024]
Abstract
Both sensing and removal of Hg(II) are important to environment and human health in view of the high toxicity and wide applications of mercury in industry. This study aims to develop a cellulose-based fluorescent aerogel for simultaneous Hg(II) sensing and removal via conveniently cross-linking two nanomaterials cellulose nanocrystals and bovine serum albumin-functionalized gold nanoclusters (BSA-AuNCs) with epichlorohydrin. The aerogel exhibited strong homogeneous red fluorescence at the non-edged regions under UV light due to highly dispersed BSA-AuNCs in it, and its fluorescence could be quenched by Hg(II). Through taking pictures with a smartphone, Hg(II) in the range of 0-1000 μg/L could be quantified with a detection limit of 12.7 μg/L. The sorption isotherm of Hg(II) by the aerogel followed Freundlich model with an equation of Qe = 0.329*Ce1/0.971 and a coefficient of 0.999. The maximum sorption capacity can achieve 483.21 mg/g for Hg(II), much higher than many reported sorbents. The results further confirmed Hg(II) strong sorption and sensitive detection are due to its complexation and redox reaction with the chemical groups in aerogels and its strong fluorescence quenching effect. Due to extensive sources and low cost, cellulose is potential to be developed into aerogels with multiple functions for sophisticated applications.
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Affiliation(s)
- Chenzhan Peng
- National Engineering Laboratory for Rice and By-products Further Processing, College of Food Science and Engineering, Central South University of Forestry & Technology, Changsha, 410004, China; Hunan Province Key Laboratory of Edible forestry Resources Safety and Processing Utilization, Central South University of Forestry and Technology, Changsha, 410004, China
| | - Tiantian Long
- National Engineering Laboratory for Rice and By-products Further Processing, College of Food Science and Engineering, Central South University of Forestry & Technology, Changsha, 410004, China; Hunan Province Key Laboratory of Edible forestry Resources Safety and Processing Utilization, Central South University of Forestry and Technology, Changsha, 410004, China
| | - Shan Luo
- National Engineering Laboratory for Rice and By-products Further Processing, College of Food Science and Engineering, Central South University of Forestry & Technology, Changsha, 410004, China; Hunan Province Key Laboratory of Edible forestry Resources Safety and Processing Utilization, Central South University of Forestry and Technology, Changsha, 410004, China
| | - Min Ouyang
- National Engineering Laboratory for Rice and By-products Further Processing, College of Food Science and Engineering, Central South University of Forestry & Technology, Changsha, 410004, China; Hunan Province Key Laboratory of Edible forestry Resources Safety and Processing Utilization, Central South University of Forestry and Technology, Changsha, 410004, China
| | - Hongmei Luo
- National Engineering Laboratory for Rice and By-products Further Processing, College of Food Science and Engineering, Central South University of Forestry & Technology, Changsha, 410004, China; Hunan Province Key Laboratory of Edible forestry Resources Safety and Processing Utilization, Central South University of Forestry and Technology, Changsha, 410004, China
| | - Dong Xu
- National Engineering Laboratory for Rice and By-products Further Processing, College of Food Science and Engineering, Central South University of Forestry & Technology, Changsha, 410004, China; Hunan Province Key Laboratory of Edible forestry Resources Safety and Processing Utilization, Central South University of Forestry and Technology, Changsha, 410004, China.
| | - Qinlu Lin
- National Engineering Laboratory for Rice and By-products Further Processing, College of Food Science and Engineering, Central South University of Forestry & Technology, Changsha, 410004, China
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Fan X, Du C, Zhou L, Fang Y, Zhang G, Zou H, Yu G, Wu H. Biochar from phytoremediation plant residues: a review of its characteristics and potential applications. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2024; 31:16188-16205. [PMID: 38329669 DOI: 10.1007/s11356-024-32243-y] [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: 11/01/2023] [Accepted: 01/25/2024] [Indexed: 02/09/2024]
Abstract
Phytoremediation is a cost-effective and eco-friendly plant-based approach promising technique to repair heavy metal-contaminated soils. However, a significant quantity of plant residues needs to be properly treated and utilized. Pyrolysis is an effective technology for converting residues to biochar, which can solve the problem and avoid secondary contamination. This paper reviews the generation, and physicochemical properties of biochar from phytoremediation residues, and its application in soil improvement, environmental remediation, and carbon sequestration. In spite of this, it is important to be aware of the potential toxicity of heavy metals in biochar and the environmental risks of biochar before applying it to practical applications. Future challenges in the production and application of residue-derived biochar include the rational selection of pyrolysis parameters and proper handling of potentially hazardous components in the biochar.
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Affiliation(s)
- Xueyan Fan
- School of Hydraulic and Environmental Engineering, Changsha University of Science and Technology, Changsha, 410114, People's Republic of China
- Key Laboratory of Dongting Lake Aquatic Eco-Environmental Control and Restoration of Hunan Province, Changsha, 410114, People's Republic of China
| | - Chunyan Du
- School of Hydraulic and Environmental Engineering, Changsha University of Science and Technology, Changsha, 410114, People's Republic of China
- Key Laboratory of Water-Sediment Sciences and Water Disaster Prevention of Hunan Province, Changsha, 410114, People's Republic of China
| | - Lu Zhou
- School of Hydraulic and Environmental Engineering, Changsha University of Science and Technology, Changsha, 410114, People's Republic of China.
- Key Laboratory of Water-Sediment Sciences and Water Disaster Prevention of Hunan Province, Changsha, 410114, People's Republic of China.
| | - Yi Fang
- School of Hydraulic and Environmental Engineering, Changsha University of Science and Technology, Changsha, 410114, People's Republic of China
- Key Laboratory of Dongting Lake Aquatic Eco-Environmental Control and Restoration of Hunan Province, Changsha, 410114, People's Republic of China
| | - Guanhao Zhang
- School of Hydraulic and Environmental Engineering, Changsha University of Science and Technology, Changsha, 410114, People's Republic of China
- Key Laboratory of Dongting Lake Aquatic Eco-Environmental Control and Restoration of Hunan Province, Changsha, 410114, People's Republic of China
| | - Honghao Zou
- School of Hydraulic and Environmental Engineering, Changsha University of Science and Technology, Changsha, 410114, People's Republic of China
- Key Laboratory of Dongting Lake Aquatic Eco-Environmental Control and Restoration of Hunan Province, Changsha, 410114, People's Republic of China
| | - Guanlong Yu
- School of Hydraulic and Environmental Engineering, Changsha University of Science and Technology, Changsha, 410114, People's Republic of China
- Key Laboratory of Water-Sediment Sciences and Water Disaster Prevention of Hunan Province, Changsha, 410114, People's Republic of China
| | - Haipeng Wu
- School of Hydraulic and Environmental Engineering, Changsha University of Science and Technology, Changsha, 410114, People's Republic of China
- Key Laboratory of Water-Sediment Sciences and Water Disaster Prevention of Hunan Province, Changsha, 410114, People's Republic of China
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Cong W, Li N, Miao Y, Huang Y, Zhao W, Kang Y, Zhang B, Wang J, Zhang J, Lv Y, Li J, Zhang J, Gong L, Liu B, Ou X. DNA hypomethylation-associated transcriptional rewiring enables resistance to heavy metal mercury (Hg) stress in rice. JOURNAL OF HAZARDOUS MATERIALS 2024; 461:132649. [PMID: 37783144 DOI: 10.1016/j.jhazmat.2023.132649] [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: 12/26/2022] [Revised: 06/17/2023] [Accepted: 09/26/2023] [Indexed: 10/04/2023]
Abstract
Mercury (Hg) is an important hazardous pollutant that can cause phytotoxicity and harm human health through the food chain. Recently, rice (Oryza sativa L.) has been confirmed as a potential Hg bioaccumulator. Although the genetic and molecular mechanisms involved in heavy metal absorption and translocation in rice have been investigated for several heavy metals, Hg is largely neglected. Here, we analyzed one Hg-resistant line in rice (RHg) derived from a DNA methyltransferase-coding gene, OsMET1-2 heterozygous mutant. Compared with its isogenic wild-type (WT), RHg exhibited a significantly higher survival rate after Hg treatment, ameliorated oxidative damage, and lower Hg uptake and translocation. RNAseq-based comparative transcriptomic analysis identified 34 potential Hg resistance-related genes involved in phytohormone signaling, abiotic stress response, and zinc (Zn) transport. Importantly, the elevated expression of Hg resistance-related genes in RHg was highly correlated with DNA hypomethylation in their putative promoter regions. An ionomic analysis unraveled a negative correlation between Zn and Hg in roots. Moreover, Hg concentration was effectively decreased by exogenous application of Zn in Hg-stressed rice plants. Our findings indicate an epigenetic basis of Hg resistance and reveal an antagonistic relationship between Hg and Zn, providing new hints towards Hg detoxification in plants. ENVIRONMENTAL IMPLICATION: Mercury (Hg) as an important hazardous pollutant adversely impacts the environment and jeopardizes human health, due to its chronicity, transferability, persistence, bioaccumulation and toxicity. In this paper, we identified 34 potential genes that may significantly contribute to Hg resistance in rice. We find the expression of Hg resistance-related genes was highly correlated with DNA hypomethylation in their putative promoter regions. Our results also revealed an antagonistic relationship between Hg and Zinc (Zn), providing new hints towards Hg detoxification in plants. Together, findings of this study extend our current understanding of Hg tolerance in rice and are informative to breed seed non-accumulating rice cultivars.
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Affiliation(s)
- Weixuan Cong
- Key Laboratory of Molecular Epigenetics of the Ministry of Education (MOE), Northeast Normal University, Changchun 130024, China; Faculty of Agronomy, Jilin Agricultural University, Changchun 130118, China
| | - Ning Li
- Key Laboratory of Molecular Epigenetics of the Ministry of Education (MOE), Northeast Normal University, Changchun 130024, China
| | - Yiling Miao
- Jilin Province Engineering Laboratory of Plant Genetic Improvement, College of Plant Science, Jilin University, Changchun 130062, China
| | - Yuxi Huang
- Key Laboratory of Molecular Epigenetics of the Ministry of Education (MOE), Northeast Normal University, Changchun 130024, China
| | - Wenhao Zhao
- Key Laboratory of Molecular Epigenetics of the Ministry of Education (MOE), Northeast Normal University, Changchun 130024, China
| | - Ying Kang
- Key Laboratory of Molecular Epigenetics of the Ministry of Education (MOE), Northeast Normal University, Changchun 130024, China
| | - Bingqi Zhang
- Key Laboratory of Molecular Epigenetics of the Ministry of Education (MOE), Northeast Normal University, Changchun 130024, China
| | - Jinbin Wang
- Key Laboratory of Molecular Epigenetics of the Ministry of Education (MOE), Northeast Normal University, Changchun 130024, China
| | - Jiayu Zhang
- Key Laboratory of Molecular Epigenetics of the Ministry of Education (MOE), Northeast Normal University, Changchun 130024, China
| | - Yinhe Lv
- Key Laboratory of Molecular Epigenetics of the Ministry of Education (MOE), Northeast Normal University, Changchun 130024, China
| | - Jiamo Li
- Key Laboratory of Molecular Epigenetics of the Ministry of Education (MOE), Northeast Normal University, Changchun 130024, China
| | - Jian Zhang
- Faculty of Agronomy, Jilin Agricultural University, Changchun 130118, China
| | - Lei Gong
- Key Laboratory of Molecular Epigenetics of the Ministry of Education (MOE), Northeast Normal University, Changchun 130024, China
| | - Bao Liu
- Key Laboratory of Molecular Epigenetics of the Ministry of Education (MOE), Northeast Normal University, Changchun 130024, China.
| | - Xiufang Ou
- Key Laboratory of Molecular Epigenetics of the Ministry of Education (MOE), Northeast Normal University, Changchun 130024, China.
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Zhang X, Xue J, Han H, Wang Y. Study on improvement of copper sulfide acid soil properties and mechanism of metal ion fixation based on Fe-biochar composite. Sci Rep 2024; 14:247. [PMID: 38167927 PMCID: PMC10762084 DOI: 10.1038/s41598-023-46913-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2023] [Accepted: 11/07/2023] [Indexed: 01/05/2024] Open
Abstract
In this study, Fe modification of bamboo biochar (BC) with ferrate was used to construct a composite soil amendment based on K2FeO4-biochar (Fe-BC) system. Based on soil culture experiments, Fe-BC combined with organic-inorganic materials at the application levels of 3%, 5% and 10% to copper sulfide contaminated acid soil was studied. Adsorption kinetics experiment was used to investigate the adsorption capacity of Fe-modified biochar to heavy metal Cu. The results showed that the pH value of bamboo biochar could be increased by 1.12 units after K2FeO4 modification. Compared with the BC, the adsorption capacity of Cu2+ increased from 190.48 to 276.12 mg/g, which was mainly reflected in single-layer surface adsorption and chemisorption. Pore diffusion, electrostatic interaction and surface interaction are the possible mechanisms of Fe-BC interaction with Cu2+ ions. And the contents of Pb, Cu and Zn in soil leaching state decreased by 59.20%, 65.88% and 57.88%, respectively, at the 10% application level of Fe-BC. In general, the composite modifier based on ferrate and biochar has a positive effect on improving the characteristics of acidic soil in copper mining area.
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Affiliation(s)
- Xiao Zhang
- School of Energy and Mechanical Engineering, Jiangxi University of Science and Technology, Nanchang, 330013, Jiangxi, China
| | - Jinchun Xue
- School of Energy and Mechanical Engineering, Jiangxi University of Science and Technology, Nanchang, 330013, Jiangxi, China.
| | - Huaqin Han
- School of Energy and Mechanical Engineering, Jiangxi University of Science and Technology, Nanchang, 330013, Jiangxi, China
| | - Yu Wang
- School of Energy and Mechanical Engineering, Jiangxi University of Science and Technology, Nanchang, 330013, Jiangxi, China
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11
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Wang L, Liu X, Wang Y, Wang X, Liu J, Li T, Guo X, Shi C, Wang Y, Li S. Stability and ecological risk assessment of nickel (Ni) in phytoremediation-derived biochar. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 903:166498. [PMID: 37633368 DOI: 10.1016/j.scitotenv.2023.166498] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/10/2023] [Revised: 08/16/2023] [Accepted: 08/20/2023] [Indexed: 08/28/2023]
Abstract
Improper treatment of heavy metal-enriched biomass generated after phytoremediation might cause secondary pollution in soil and water. At present, the pyrolysis process is an effective method for the treatment of phytoremediation residue. In this study, Ni-enriched biomass was prepared using hydroponics method and further pyrolyzed at different temperatures (300-700 °C). At low pyrolysis temperatures (below 500 °C), carbonate precipitation was the main reason of Ni stabilization in biochar. Nevertheless, the formed phosphate and aluminosilicate were important factors for immobilizing Ni in biochar at high pyrolysis temperatures (above 500 °C). Moreover, the oxidizable (F3) and residual (F4) components of Ni in biochar increased with increasing pyrolysis temperature, which indicated that higher pyrolysis temperature could effectively reduce the bioavailability of Ni in biochar. The results of deionized water, acidification, oxidation, and toxic characteristic leaching procedure (TCLP) experiments showed that pyrolysis temperature was the dominant factor for Ni stabilization in biochar. The ecological risk assessments further proved that pyrolyzed Ni-enriched biochar could reduce the environmental toxicity and potential ecological risks of Ni. In the soil simulated experiment, the soil microenvironment gradually promoted the transformation of Ni in BCNiX from bioavailable fraction to stable fraction. Overall, this study would expose more reasonable reference for the long-term storage of phytoremediation residues.
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Affiliation(s)
- Lei Wang
- School of Materials and Environmental Engineering, Institute of Urban Ecology and Environment Technology, Shenzhen Polytechnic, Shenzhen 518055, PR China; Eco-Environmental Science Center (Guangdong, Hong-Kong, Macau), Guangzhou 510555, PR China
| | - Xunjie Liu
- Eco-Environmental Science Center (Guangdong, Hong-Kong, Macau), Guangzhou 510555, PR China; Tianjin Key Laboratory of Refrigeration Technology, Tianjin University of Commerce, Tianjin 300134, PR China
| | - Yangyang Wang
- School of Materials and Environmental Engineering, Institute of Urban Ecology and Environment Technology, Shenzhen Polytechnic, Shenzhen 518055, PR China; School of Resource and Environmental Engineering, Wuhan University of Technology, Wuhan 430070, PR China
| | - Xiaoshu Wang
- School of Materials and Environmental Engineering, Institute of Urban Ecology and Environment Technology, Shenzhen Polytechnic, Shenzhen 518055, PR China
| | - Jin Liu
- Eco-Environmental Science Center (Guangdong, Hong-Kong, Macau), Guangzhou 510555, PR China
| | - Tongtong Li
- Technical Centre for Soil, Agriculture and Rural Ecology and Environment, Ministry of Ecology and Environment, Beijing 100012, PR China
| | - Xiaomeng Guo
- Eco-Environmental Science Center (Guangdong, Hong-Kong, Macau), Guangzhou 510555, PR China
| | - Chao Shi
- School of Materials and Environmental Engineering, Institute of Urban Ecology and Environment Technology, Shenzhen Polytechnic, Shenzhen 518055, PR China
| | - Ying Wang
- Center for Water and Ecology, State Key Joint Laboratory of Environment Simulation and Pollution Control, School of Environment, Tsinghua University, Beijing 100084, PR China.
| | - Shaofeng Li
- School of Materials and Environmental Engineering, Institute of Urban Ecology and Environment Technology, Shenzhen Polytechnic, Shenzhen 518055, PR China.
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12
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Zhang Y, Zhang Q, Chen W, Shi W, Cui Y, Chen L, Shao J. Source apportionment and migration characteristics of heavy metal(loid)s in soil and groundwater of contaminated site. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2023; 338:122584. [PMID: 37739256 DOI: 10.1016/j.envpol.2023.122584] [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: 06/02/2023] [Revised: 09/15/2023] [Accepted: 09/18/2023] [Indexed: 09/24/2023]
Abstract
The rapid industrial growth has generated heavy metal(loid)s contamination in the soil, which poses a serious threat to the ecology and human health. In this study, 580 samples were collected in Henan Province, China, for source apportionment, migration characterization and health risk evaluation using self-organizing map, positive matrix factorization and multivariate risk assessment methods. The results showed that samples were classified into four groups and pollution sources included chromium slag dump, soil parent rock and abandoned factory. The contents of Cr, Pb, As and Hg were low in Group 1. Group 2 was characterized by total Cr, Cr(Ⅵ) and pH. The enrichment of total Cr and Cr(Ⅵ) in soil was mainly attributed to chromium slag dump, accounting for more than 84.0%. Group 3 was dominated by Hg and Pb. Hg and Pb were primarily attributed to abandoned factory, accounting for 84.7% and 70.0%, respectively. Group 4 was characterized by As. The occurrence of As was not limited to one individual region. The contribution of soil parent rock reached 83.0%. Furthermore, the vertical migration of As, Hg, Pb and Cr(Ⅵ) in soil was mainly influenced by medium permeability, pH and organic matter content. The trends of As, Pb, and Hg with depth were basically consistent with the trends of organic matter with depth, and were negatively correlated with the change in pH with depth. The trends of Cr(Ⅵ) with depth were basically consistent with the changes in pH with the depth. The content of Cr(Ⅵ) in the deep soil did not exceed the detection limits and Cr(Ⅵ) contamination occurred in the deep aquifer, suggesting that Cr(Ⅵ) in the deep groundwater originated from the leakage of shallow groundwater. The assessment indicated that the non-carcinogenic and carcinogenic risks for children and adults could not be neglected. Moreover, children were more susceptible than adults.
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Affiliation(s)
- Yaobin Zhang
- Ministry of Education Key Laboratory of Groundwater Circulation and Environmental Evolution, China University of Geosciences (Beijing), Beijing, 100083, China; School of Water Resources and Environment, China University of Geosciences (Beijing), Beijing, 100083, China; MNR Key Laboratory of Shallow Geothermal Energy, China University of Geosciences (Beijing), Beijing, 100083, China
| | - Qiulan Zhang
- Ministry of Education Key Laboratory of Groundwater Circulation and Environmental Evolution, China University of Geosciences (Beijing), Beijing, 100083, China; School of Water Resources and Environment, China University of Geosciences (Beijing), Beijing, 100083, China; MNR Key Laboratory of Shallow Geothermal Energy, China University of Geosciences (Beijing), Beijing, 100083, China.
| | - Wenfang Chen
- The First Institute of Geo-environment Survey of Henan, Zhengzhou, 450045, China
| | - Weiwei Shi
- The First Institute of Geo-environment Survey of Henan, Zhengzhou, 450045, China
| | - Yali Cui
- Ministry of Education Key Laboratory of Groundwater Circulation and Environmental Evolution, China University of Geosciences (Beijing), Beijing, 100083, China; School of Water Resources and Environment, China University of Geosciences (Beijing), Beijing, 100083, China; MNR Key Laboratory of Shallow Geothermal Energy, China University of Geosciences (Beijing), Beijing, 100083, China
| | - Leilei Chen
- The First Institute of Geo-environment Survey of Henan, Zhengzhou, 450045, China
| | - Jingli Shao
- Ministry of Education Key Laboratory of Groundwater Circulation and Environmental Evolution, China University of Geosciences (Beijing), Beijing, 100083, China; School of Water Resources and Environment, China University of Geosciences (Beijing), Beijing, 100083, China; MNR Key Laboratory of Shallow Geothermal Energy, China University of Geosciences (Beijing), Beijing, 100083, China
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13
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Alishirazi M, Salmak S, Gitipour S. A comprehensive assessment to offer optimized remediation method for mercury contamination in Musa Bay by using hybrid Fuzzy AHP-VIKOR approach. ENVIRONMENTAL GEOCHEMISTRY AND HEALTH 2023; 45:8685-8707. [PMID: 37702854 DOI: 10.1007/s10653-023-01745-y] [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: 03/03/2023] [Accepted: 08/24/2023] [Indexed: 09/14/2023]
Abstract
Musa Bay, the largest wetland in Iran and one of the most important Hg-polluted media, plays a significant role in the ecosystem of the area and supports many forms of life. Mercury pollution has detrimental effects on the human body and at high levels leads to the loss of microorganisms in marine ecosystems. Hence, a comprehensive assessment for selecting an effective and sustainable remediation method is crucial to restoring the ecosystem promptly. The determination of a proper and practical treatment method not only is a case-based approach, but could be challenging due to its multi-criteria decision-making nature. Considering preferred crucial factors involved in the effectiveness of remedial actions, in this study a questionnaire is designed to assess the opinion of environmental experts, stakeholders, and some occupants of the area on remedial actions based on the importance weights of criteria. Subsequently, practical remediation and management strategies ranked by hybrid FVIKOR as a multi-criteria decision making (MCDM) method. Ranking results show that dredging and stabilization could offer a promising solution for the remediation of the case study. The results of the study demonstrate that the development of MCDM methods along with effective criteria and considering the analysis of the questionnaires, could offer the best remediation strategy for a specific contaminated site.
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Affiliation(s)
| | - Saba Salmak
- Department of Environmental Engineering, University of Tehran, Tehran, Iran.
| | - Saeid Gitipour
- Department of Environmental Engineering, University of Tehran, Tehran, Iran
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14
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Aslam MA, Ahmed S, Saleem M, Sardar R, Shah AA, Siddiqui MH, Shabbir Z. Mitigation of chromium-induced phytotoxicity in 28-homobrassinolide treated Trigonella corniculata L. by modulation of oxidative biomarkers and antioxidant system. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2023; 263:115354. [PMID: 37595348 DOI: 10.1016/j.ecoenv.2023.115354] [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: 01/15/2023] [Revised: 08/07/2023] [Accepted: 08/09/2023] [Indexed: 08/20/2023]
Abstract
Chromium (Cr) is one of the toxic heavy metals that disturbs growth and physiological properties of plants. During the current study, Trigonella corniculata L. (Fenugreek) was exposed to different levels of Cr in potted soil. Chromium toxicity reduced fiber, ash, moisture, carbohydrate, protein, fats, and flavonoid content of T. corniculata. Considering the stress relieving effect of 28-homobrassinolide (28-HBR), seeds of T. corniculata were primed with different concentration of 28-HBR i.e., 0, 5, 10, and 20 µmol L-1. Application of 28-HBR reversed the toxic effect of Cr through improvement in activity of antioxidant enzymes like superoxide dismutase (SOD), peroxidase (POD) and catalase (CAT). Conclusively, 10 µmol L-1 28-HBR increased Cr tolerance in T. corniculata seedlings due to reduction in oxidative stress markers. It is further proposed that 28-HBR is an effective stress ameliorant to relive plants from various abiotic stresses.
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Affiliation(s)
| | - Shakil Ahmed
- Institute of Botany, University of the Punjab, Lahore, Pakistan
| | - Muhammad Saleem
- Institute of Botany, University of the Punjab, Lahore, Pakistan
| | - Rehana Sardar
- Institute of Botany, University of the Punjab, Lahore, Pakistan
| | - Anis Ali Shah
- Department of Botany, Division of Science and Technology, University of Education, Lahore, Pakistan.
| | - Manzer H Siddiqui
- Department of Botany and Microbiology, College of Science, King Saud University, Riyadh 11451, Saudi Arabia
| | - Zunera Shabbir
- Agronomy, Horticulture and Plant Science Department, South Dakota State University, USA
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15
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Wang J, Gao J, Zheng L, Fu Y, Ji L, Wang C, Yuan S, Yang J, Liu J, Li G, Wang P, Wang Y, Zheng X, Kang G. Abscisic acid alleviates mercury toxicity in wheat (Triticum aestivum L.) by promoting cell wall formation. JOURNAL OF HAZARDOUS MATERIALS 2023; 449:130947. [PMID: 36801712 DOI: 10.1016/j.jhazmat.2023.130947] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/28/2022] [Revised: 01/18/2023] [Accepted: 02/03/2023] [Indexed: 06/18/2023]
Abstract
Mercury (Hg) is a heavy metal (HM) that affects crop growth and productivity. In a previous study, we found that application of exogenous abscisic acid (ABA) alleviated growth inhibition in Hg-stressed wheat seedlings. However, the physiological and molecular mechanisms underlying ABA-mediated Hg detoxification remained unclear. In this study, Hg exposure reduced the plant fresh and dry weights and root numbers. Exogenous ABA treatment significantly resumed the plant growth, increased the plant height and weight, and enriched the roots numbers and biomass. The application of ABA enhanced Hg absorption and raised the Hg levels in the roots. In addition, exogenous ABA decreased Hg-induced oxidative damage and significantly brought down the activities of antioxidant enzymes, such as SOD, POD and CAT. Global gene expression patterns in the roots and leaves exposed to HgCl2 and ABA treatments were examined via RNA-Seq. The data showed that genes related to ABA-mediated Hg detoxification were enriched in functions related to cell wall formation. Weighted gene co-expression network analysis (WGCNA) further indicated that the genes implicated in Hg detoxification were related to cell wall synthesis. Under Hg stress, ABA significantly induced expression of the genes encoding cell wall synthesis enzymes, regulated the activity of hydrolase, and increased the concentrations of cellulose and hemicellulose, hence promoting cell wall synthesis. Taken together, these results suggest that exogenous ABA could alleviate Hg toxicity in wheat by promoting cell wall formation and suppressing translocation of Hg from roots to shoots.
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Affiliation(s)
- Jinxi Wang
- The National Engineering Research Center for Wheat, College of Agronomy, Henan Agricultural University, Longzi Lake Campus, Zhengzhou 450046, China
| | - Jie Gao
- The National Engineering Research Center for Wheat, College of Agronomy, Henan Agricultural University, Longzi Lake Campus, Zhengzhou 450046, China
| | - Lanjie Zheng
- The National Engineering Research Center for Wheat, College of Agronomy, Henan Agricultural University, Longzi Lake Campus, Zhengzhou 450046, China
| | - Yihan Fu
- The National Engineering Research Center for Wheat, College of Agronomy, Henan Agricultural University, Longzi Lake Campus, Zhengzhou 450046, China
| | - Li Ji
- The National Engineering Research Center for Wheat, College of Agronomy, Henan Agricultural University, Longzi Lake Campus, Zhengzhou 450046, China
| | - Changyu Wang
- The National Engineering Research Center for Wheat, College of Agronomy, Henan Agricultural University, Longzi Lake Campus, Zhengzhou 450046, China
| | - Shasha Yuan
- The National Engineering Research Center for Wheat, College of Agronomy, Henan Agricultural University, Longzi Lake Campus, Zhengzhou 450046, China
| | - Jingyu Yang
- The National Engineering Research Center for Wheat, College of Agronomy, Henan Agricultural University, Longzi Lake Campus, Zhengzhou 450046, China
| | - Jin Liu
- The National Engineering Research Center for Wheat, College of Agronomy, Henan Agricultural University, Longzi Lake Campus, Zhengzhou 450046, China
| | - Gezi Li
- The State Key Laboratory of Wheat and Maize Crop Science, College of Agronomy, Henan Agricultural University, Zhengzhou 450002, China
| | - Pengfei Wang
- The National Engineering Research Center for Wheat, College of Agronomy, Henan Agricultural University, Longzi Lake Campus, Zhengzhou 450046, China
| | - Yonghua Wang
- The National Engineering Research Center for Wheat, College of Agronomy, Henan Agricultural University, Longzi Lake Campus, Zhengzhou 450046, China
| | - Xu Zheng
- The National Engineering Research Center for Wheat, College of Agronomy, Henan Agricultural University, Longzi Lake Campus, Zhengzhou 450046, China; The State Key Laboratory of Wheat and Maize Crop Science, College of Agronomy, Henan Agricultural University, Zhengzhou 450002, China.
| | - Guozhang Kang
- The National Engineering Research Center for Wheat, College of Agronomy, Henan Agricultural University, Longzi Lake Campus, Zhengzhou 450046, China; The State Key Laboratory of Wheat and Maize Crop Science, College of Agronomy, Henan Agricultural University, Zhengzhou 450002, China.
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16
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Li X, Zhao L, Teng Y, Luo Y, Zhao Q. Effects of cadmium on mercury accumulation and transformation by Arundo donax L. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:62461-62469. [PMID: 36943572 DOI: 10.1007/s11356-023-26516-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/06/2022] [Accepted: 03/14/2023] [Indexed: 05/10/2023]
Abstract
High biomass energy plants are a promising alternative to hyperaccumulators for the remediation of heavy metals (HMs). Arundo donax L. (A. donax) is a rapidly growing rhizomatous grass with high biomass production. However, the feasibility of using A. donax for the phytoremediation of combined mercury (Hg) and cadmium (Cd) pollution under neutral conditions is unclear. In this study, a hydroponic experiment was performed to investigate the impact of Hg-Cd stress on the growth and physiological properties of A. donax and HMs accumulation and transformation. Either single Hg or Cd stress slightly enhanced stem height, fresh biomass, and chlorophyll content, whereas combined Hg-Cd stress reduced these parameters. Furthermore, combined Hg-Cd stress increased the leaf content of malondialdehyde in A. donax, indicating that the combined pollution aggravated oxidative stress in A. donax. Hg volatilization was observed during the 10-day experiment, implying that a portion of the Hg2+ was transformed into Hg0 by A. donax. The bioaccumulation factor (BAF) values of A. donax were far greater than 1 for both Hg and Cd, whereas the translocation factor (TF) values were less than 1, indicating that phytovolatilization and phytostabilization rather than phytoextraction contributed to the remediation of Hg and Cd by A. donax. The solution pH decreased at the beginning of the experiment, suggesting that acidic root exudates of A. donax facilitated the accumulation and transformation of Hg under neutral conditions. Overall, the effects of Cd on Hg accumulation and transformation by A. donax followed the rule of "low promotion and high inhibition." This study demonstrates that A. donax is a potential candidate for the phytoremediation of combined Hg-Cd pollution under neutral conditions.
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Affiliation(s)
- Xiuhua Li
- Key Laboratory of Soil Environment and Pollution Remediation, Institute of Soil Science, Chinese Academy of Sciences, Nanjing, 210008, China
- University of the Chinese Academy of Sciences, Beijing, 100049, China
| | - Ling Zhao
- Key Laboratory of Soil Environment and Pollution Remediation, Institute of Soil Science, Chinese Academy of Sciences, Nanjing, 210008, China
| | - Ying Teng
- Key Laboratory of Soil Environment and Pollution Remediation, Institute of Soil Science, Chinese Academy of Sciences, Nanjing, 210008, China.
| | - Yongming Luo
- Key Laboratory of Soil Environment and Pollution Remediation, Institute of Soil Science, Chinese Academy of Sciences, Nanjing, 210008, China
| | - Qiguo Zhao
- Key Laboratory of Soil Environment and Pollution Remediation, Institute of Soil Science, Chinese Academy of Sciences, Nanjing, 210008, China
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17
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Peng D, Chen M, Su X, Liu C, Zhang Z, Middleton BA, Lei T. Mercury accumulation potential of aquatic plant species in West Dongting Lake, China. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2023; 324:121313. [PMID: 36813101 DOI: 10.1016/j.envpol.2023.121313] [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: 09/27/2022] [Revised: 02/09/2023] [Accepted: 02/16/2023] [Indexed: 06/18/2023]
Abstract
West Dongting Lake is a protected wetland with the potential for high levels of mercury release via wastewater and deposition from industry and agriculture during the last decade. To find out the ability of various plant species to accumulate mercury pollutants from soil and water, nine sites were studied in the downstream direction of the flow of the Yuan and Li Rivers, which are tributaries of the Yellow River flowing into West Dongting Lake, where mercury levels arere high in soil and plant tissues. The total mercury (THg) concentration in wetland soil was 0.078-1.659 mg/kg, which varied along the gradient of water flow along the river. According to canonical correspondence analysis and correlation analysis, there was a positive correlation between the soil THg concentration and the soil moisture in West Dongting Lake. There is high heterogeneity in the spatial distribution of soil THg concentration in West Dongting Lake, which may be related to the spatial heterogeneity of the soil moisture. Some plant species had higher THg concentrations in aboveground tissues (translocation factor >1), but none of these plant species fit the criteria as hyperaccumulators of mercury. And some species of the same ecological type (e.g., emergent, submergent, floating-leaved) exhibited very different strategies for mercury uptake. The concentrations of mercury in these species were lower than in other studies but these had relatively higher translocation factors. To phytoremediate soil mercury in West Dongting Lake, the regular harvest of plants could help remove mercury from soil and plant tissue.
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Affiliation(s)
- Dong Peng
- Beijing Forestry University, School of Ecology and Nature Conservation, 35 Tsinghua East Road Haidian Distinct, Beijing, 100083, PR China; Nanjing University, School of Geography and Ocean Science, School of Atmospheric Sciences, 163 Xianlin Road, Qixia Distinct, Nanjing, 210023, PR China
| | - Mingzhu Chen
- Shenzhen BLY Landscape and Architecture Planning and Design Institute, Block A, West District of Tanglang Plaza, Fuguang Community, Taoyuan Street, Nanshan District, Shenzhen, PR China
| | - Xinyue Su
- Beijing Forestry University, School of Ecology and Nature Conservation, 35 Tsinghua East Road Haidian Distinct, Beijing, 100083, PR China
| | - Chenchen Liu
- Beijing Forestry University, School of Ecology and Nature Conservation, 35 Tsinghua East Road Haidian Distinct, Beijing, 100083, PR China
| | - Zhehao Zhang
- Forestry Bureau of Jiangshan Municipal, No.115, Fourth District of Jiangbin, Jiangshan, Quzhou City, Zhejiang Province, PR China
| | - Beth A Middleton
- U.S. Geological Survey, Wetland and Aquatic Research Center, 700 Cajundome Boulevard, Lafayette, LA, 70506, USA
| | - Ting Lei
- Beijing Forestry University, School of Ecology and Nature Conservation, 35 Tsinghua East Road Haidian Distinct, Beijing, 100083, PR China; National Field Scientific Observation and Research Station of Dongting Lake Wetland Ecosystem, Hunan, 415904, PR China.
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18
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Nie M, Wu C, Tang Y, Shi G, Wang X, Hu C, Cao J, Zhao X. Selenium and Bacillus proteolyticus SES synergistically enhanced ryegrass to remediate Cu-Cd-Cr contaminated soil. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2023; 323:121272. [PMID: 36780973 DOI: 10.1016/j.envpol.2023.121272] [Citation(s) in RCA: 11] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/04/2022] [Revised: 02/09/2023] [Accepted: 02/10/2023] [Indexed: 06/18/2023]
Abstract
Heavy metal compound contaminated soil is an ecological threat, and soil containing copper (Cu), cadmium (Cd) and chromium (Cr) simultaneously is widely distributed. The application of phytoremediation in heavy metal combined contamination is still limited. In this study, to explore whether and how exogenous selenium (Se) and Bacillus proteolyticus SES enhance the remediation of combined Cu-Cd-Cr contaminated soil by ryegrass, pot experiments were carried out. Se alone or in combination with B. proteolyticus SES treatment increased the removal rates of heavy metals in the rhizosphere soil by 17.38%-157.25% relative to the control, while Se + B. proteolyticus SES treatment played a greater role in improving the heavy metals tolerance of ryegrass and increasing the activity of soil acid phosphatase. Moreover, Se and B. proteolyticus SES favored the preferential recruitment of specific taxa with the capacity of plant growth promotion and heavy metals resistance to the rhizosphere. The rhizosphere soil of Se treatment was specifically enriched with Lysobacter, Rhodanobacter, Micrococcales, Paenarthrobacter, and Adhaeribacter, while from class Bacilli to genus Bacillus enriched extensively and specifically in the rhizosphere of B. proteolyticus SES + Se treatment. Furthermore, five functional beneficial rhizosphere microbes including: Microbacterium sp., Pseudomonas extremaustralis, Bacillus amyloliquefaciens, Priestia megaterium, and Bacillus subtilis were isolated from the two treatments with the best remediation effect and synthetic communities (SynComs) were constructed. SynComs inoculation experiment further demonstrated the role of specific beneficial microbes in regulating the bioavailability of heavy metals. Results revealed that Se supplementation efficiently facilitated the phytoextraction of combined Cu-Cd-Cr contaminated soil, and B. proteolyticus SES inoculation showed the synergistical enhancement effect in the presence of Se.
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Affiliation(s)
- Min Nie
- College of Resources and Environment, Huazhong Agricultural University / Research Center of Trace Elements, Wuhan, 430070, China; Fujian Provincial Key Laboratory of Resources and Environment Monitoring & Sustainable Management and Utilization, Sanming University, Sanming, 365004, China
| | - Chihhung Wu
- Fujian Provincial Key Laboratory of Resources and Environment Monitoring & Sustainable Management and Utilization, Sanming University, Sanming, 365004, China
| | - Yanni Tang
- College of Resources and Environment, Huazhong Agricultural University / Research Center of Trace Elements, Wuhan, 430070, China
| | - Guangyu Shi
- College of Environment Science and Engineering, Suzhou University of Science and Technology, Suzhou, 215009, China
| | - Xu Wang
- Institute of Quality Standard and Monitoring Technology for Agro-products of Guangdong Academy of Agricultural Sciences, Guangzhou, 510640, China
| | - Chengxiao Hu
- College of Resources and Environment, Huazhong Agricultural University / Research Center of Trace Elements, Wuhan, 430070, China
| | - Jun Cao
- College of Resources and Environment, Huazhong Agricultural University / Research Center of Trace Elements, Wuhan, 430070, China
| | - Xiaohu Zhao
- College of Resources and Environment, Huazhong Agricultural University / Research Center of Trace Elements, Wuhan, 430070, China.
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19
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Saldarriaga JF, López JE, Díaz-García L, Montoya-Ruiz C. Changes in Lolium perenne L. rhizosphere microbiome during phytoremediation of Cd- and Hg-contaminated soils. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:49498-49511. [PMID: 36781665 PMCID: PMC10104932 DOI: 10.1007/s11356-023-25501-y] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/16/2022] [Accepted: 01/18/2023] [Indexed: 04/16/2023]
Abstract
The contamination of soil and water by metals such as mercury (Hg) and cadmium (Cd) has been increasing in recent years, because of anthropogenic activities such as mining and agriculture, respectively. In this work, the changes in the rhizosphere microbiome of Lolium perenne L. during the phytoremediation of soils contaminated with Hg and Cd were evaluated. For this, two soil types were sampled, one inoculated with mycorrhizae and one without. The soils were contaminated with Hg and Cd, and L. perenne seeds were sown and harvested after 30 days. To assess changes in the microbiome, DNA isolation tests were performed, for which samples were subjected to two-step PCR amplification with specific 16S rDNA V3-V4 primers (337F and 805R). With mycorrhizae, changes had been found in the absorption processes of metals and a new distribution. While with respect to microorganisms, families such as the Enterobacteriaceae have been shown to have biosorption and efflux effects on metals such as Hg and Cd. Mycorrhizae then improve the efficiency of removal and allow the plant to better distribute the absorbed concentrations. Overall, L. perenne is a species with a high potential for phytoremediation of Cd- and Hg-contaminated soils in the tropics. Inoculation with mycorrhizae modifies the phytoremediation mechanisms of the plant and the composition of microorganisms in the rhizosphere. Mycorrhizal inoculation and changes in the microbiome were associated with increased plant tolerance to Cd and Hg. Microorganism-assisted phytoremediation is an appropriate alternative for L. perenne.
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Affiliation(s)
- Juan F Saldarriaga
- Dept. of Civil and Environmental Engineering, Universidad de los Andes, Carrera 1Este, #19A-40, 111711, Bogotá, Colombia.
| | - Julián E López
- Facultad de Arquitectura E Ingeniería, Institución Universitaria Colegio Mayor de Antioquia, Carrera 78 # 65 - 46, 050034, Medellín, Colombia
| | - Laura Díaz-García
- Department of Chemical & Biological Engineering and Advanced Biomanufacturing Centre, University of Sheffield, Sir Robert Hadfield Building, Mappin Street, Sheffield, S1 3JD, UK
| | - Carolina Montoya-Ruiz
- Facultad de Ciencias, Universidad Nacional de Colombia, Sede Medellín Calle, 59A #63-20, 050034, Medellín, Colombia
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20
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Thakuria A, Singh KK, Dutta A, Corton E, Stom D, Barbora L, Goswami P. Phytoremediation of toxic chemicals in aquatic environment with special emphasis on duckweed mediated approaches. INTERNATIONAL JOURNAL OF PHYTOREMEDIATION 2023; 25:1699-1713. [PMID: 36941761 DOI: 10.1080/15226514.2023.2188423] [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] [Indexed: 06/18/2023]
Abstract
The discharge of toxic chemicals into water bodies and their linked detrimental effects on health is a global concern. Phytoremediation, an environment-friendly plant-based technology, has gained intensive interest over the last decades. For the aquatic phytoremediation process, the commonly available duckweeds have recently attracted significant attention due to their capacity to grow in diverse ecological niches, fast growth characteristics, suitable morphology for easy handling of biomass, and capacity to remove and detoxify various potential toxic elements and compounds. This review presents the progress of duckweed-assisted aquatic phytoremediation of toxic chemicals. A brief background of general phytoremediation processes, including the different phytoremediation methods and advances in understanding their underlying mechanisms, has been described. A summary of different approaches commonly practiced to assess the growth of the plants and their metal removal capacity in the phytoremediation process has also been included. A vast majority of studies have established that duckweed is an efficient plant catalyst to accumulate toxic heavy metals and organic contaminants, such as pesticides, fluorides, toxins, and aromatic compounds, reducing their toxicity from water bodies. The potential of this plant-based phytoremediation process for its downstream applications in generating value-added products for the rural economy and industrial interest has been identified.
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Affiliation(s)
- Aparupa Thakuria
- School of Energy Science and Engineering, Indian Institute of Technology Guwahati, Guwahati, India
| | - Kundan Kumar Singh
- Department of Biosciences and Bioengineering, Indian Institute of Technology Guwahati, Guwahati, India
| | - Arup Dutta
- School of Energy Science and Engineering, Indian Institute of Technology Guwahati, Guwahati, India
| | - Eduardo Corton
- Laboratory of Biosensors and Bioanalysis, IQUIBICEN-CONICET and FCEN-UBA, Buenos Aires, Argentina
| | - Devard Stom
- Faculty of Biology and Soil, Irkutsk State University, Irkutsk, Russia
| | - Lepakshi Barbora
- School of Energy Science and Engineering, Indian Institute of Technology Guwahati, Guwahati, India
| | - Pranab Goswami
- Department of Biosciences and Bioengineering, Indian Institute of Technology Guwahati, Guwahati, India
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21
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Cui L, Tian X, Xie H, Cong X, Cui L, Wu H, Wang J, Li B, Zhao J, Cui Y, Feng X, Li YF. Cardamine violifolia as a potential Hg hyperaccumulator and the cellular responses. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 863:160940. [PMID: 36528102 DOI: 10.1016/j.scitotenv.2022.160940] [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: 10/07/2022] [Revised: 12/10/2022] [Accepted: 12/11/2022] [Indexed: 06/17/2023]
Abstract
Cardamine violifolia belongs to the Brassicaceae family and is a selenium (Se) hyperaccumulator found in Enshi, China. In this study, C. violifolia was found to accumulate mercury (Hg) in its roots and aboveground parts at concentrations up to 6000 μg/g. In the seedling and mature stages, the bioaccumulation factors (BAFS) of Hg reached 1.8-223, while the translocation factor (TF) for Hg reached 1.5. We observed a significant positive correlation between THg concentrations in plant tissues and those in the soil (r2 = 0.71-0.84). Synchrotron radiation X-ray fluorescence with focused X-ray (μ-SRXRF) showed that Hg was translocated from the roots to shoots through the vascular bundle and was transported through the leaf veins in leaves. Transmission electron microscopy showed that root cells were more tolerant to Hg than leaf cells. These findings provide insights into the mechanisms of Hg hyperaccumulation in C. violifolia. Overall, we demonstrated that C. violifolia is a promising Hg hyperaccumulator that may be used for phytoremediating Hg-contaminated farmlands.
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Affiliation(s)
- Liwei Cui
- College of Resources and Environment, University of Chinese Academy of Sciences, Beijing 101408, China
| | - Xue Tian
- CAS-HKU Joint Laboratory of Metallomics on Health and Environment, Chinese Academy of Sciences, Beijing 100049, China; CAS Key Laboratory for Biological Effects of Nanomaterials and Nanosafety, Chinese Academy of Sciences, Beijing 100049, China; Beijing Metallomics Facility, Chinese Academy of Sciences, Beijing 100049, China; National Consortium for Excellence in Metallomics, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China
| | - Hongxin Xie
- CAS-HKU Joint Laboratory of Metallomics on Health and Environment, Chinese Academy of Sciences, Beijing 100049, China; CAS Key Laboratory for Biological Effects of Nanomaterials and Nanosafety, Chinese Academy of Sciences, Beijing 100049, China; Beijing Metallomics Facility, Chinese Academy of Sciences, Beijing 100049, China; National Consortium for Excellence in Metallomics, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China
| | - Xin Cong
- Enshi Se-Run Material Engineering Technology Co., Ltd., Enshi 445000, Hubei, China; National R&D Center for Se-rich Agricultural Products Processing, Wuhan Polytechnic University, Wuhan 430023, China
| | - Lihong Cui
- School of Life Sciences, Tsinghua University, Beijing 100084, China
| | - Han Wu
- School of Material Science and Chemical Engineering, Harbin University of Science and Technology, Harbin 150080, Heilongjiang, China
| | - Jianxu Wang
- State Key Laboratory of Environmental Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences, Guiyang 550081, Guizhou, China
| | - Bai Li
- CAS-HKU Joint Laboratory of Metallomics on Health and Environment, Chinese Academy of Sciences, Beijing 100049, China; CAS Key Laboratory for Biological Effects of Nanomaterials and Nanosafety, Chinese Academy of Sciences, Beijing 100049, China; Beijing Metallomics Facility, Chinese Academy of Sciences, Beijing 100049, China; National Consortium for Excellence in Metallomics, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China
| | - Jiating Zhao
- CAS-HKU Joint Laboratory of Metallomics on Health and Environment, Chinese Academy of Sciences, Beijing 100049, China; CAS Key Laboratory for Biological Effects of Nanomaterials and Nanosafety, Chinese Academy of Sciences, Beijing 100049, China; Beijing Metallomics Facility, Chinese Academy of Sciences, Beijing 100049, China; National Consortium for Excellence in Metallomics, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China
| | - Yanshan Cui
- College of Resources and Environment, University of Chinese Academy of Sciences, Beijing 101408, China
| | - Xinbin Feng
- State Key Laboratory of Environmental Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences, Guiyang 550081, Guizhou, China
| | - Yu-Feng Li
- CAS-HKU Joint Laboratory of Metallomics on Health and Environment, Chinese Academy of Sciences, Beijing 100049, China; CAS Key Laboratory for Biological Effects of Nanomaterials and Nanosafety, Chinese Academy of Sciences, Beijing 100049, China; Beijing Metallomics Facility, Chinese Academy of Sciences, Beijing 100049, China; National Consortium for Excellence in Metallomics, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China.
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22
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Cao Y, Ma C, Yu H, Tan Q, Dhankher OP, White JC, Xing B. The role of sulfur nutrition in plant response to metal(loid) stress: Facilitating biofortification and phytoremediation. JOURNAL OF HAZARDOUS MATERIALS 2023; 443:130283. [PMID: 36370480 DOI: 10.1016/j.jhazmat.2022.130283] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/04/2022] [Revised: 10/11/2022] [Accepted: 10/27/2022] [Indexed: 06/16/2023]
Abstract
Metal(loid)s contamination poses a serious threat to ecosystem biosafety and human health. Phytoremediation is a cost-effective and eco-friendly technology with good public acceptance, although the process does require a significant amount of time for success. To enhance the phytoremediation efficiency, numerous approaches have been explored, including soil amendments application with chelators to facilitate remediation. Sulfur (S), a macronutrient for plant growth, plays vital roles in several metabolic pathways that can actively affect metal(loid)s phytoextraction, as well as attenuate metal(loid) toxicity. In this review, different forms of S-amendments (fertilizers) on uptake and translocation in plants upon exposure to various metal(loid) are evaluated. Possible mechanisms for S application alleviating metal(loid) toxicity are documented at the physiological, biochemical and molecular levels. Furthermore, this review highlights the crosstalk between S-assimilation and other biomolecules, such as phytohormones, polyamines and nitric oxide, which are also important for metal(loid) stress tolerance. Given the effectiveness and potential of S amendments on phytoremediation, future studies should focus on optimizing phytoremediation efficiency in long-term field studies and on investigating the appropriate S dose to maximize the food safety and ecosystem health.
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Affiliation(s)
- Yini Cao
- Key Laboratory for City Cluster Environmental Safety and Green Development of the Ministry of Education, School of Ecology, Environment and Resources, Guangdong University of Technology, Guangzhou 510006, China; Faculty of Life Science and Technology, Central South University of Forestry and Technology, Changsha, Hunan 410004, China
| | - Chuanxin Ma
- Key Laboratory for City Cluster Environmental Safety and Green Development of the Ministry of Education, School of Ecology, Environment and Resources, Guangdong University of Technology, Guangzhou 510006, China
| | - Hao Yu
- Department of Environmental and Biological Sciences, University of Eastern Finland, P. O. Box 1672, 70211 Kuopio, Finland
| | - Qian Tan
- Key Laboratory for City Cluster Environmental Safety and Green Development of the Ministry of Education, School of Ecology, Environment and Resources, Guangdong University of Technology, Guangzhou 510006, China.
| | - Om Parkash Dhankher
- Stockbridge School of Agriculture, University of Massachusetts, Amherst, MA 01003, United States
| | - Jason C White
- The Connecticut Agricultural Experiment Station, New Haven, CT 06504, United States
| | - Baoshan Xing
- Stockbridge School of Agriculture, University of Massachusetts, Amherst, MA 01003, United States
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23
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Zhong V, Archibald BN, Brophy JAN. Transcriptional and post-transcriptional controls for tuning gene expression in plants. CURRENT OPINION IN PLANT BIOLOGY 2023; 71:102315. [PMID: 36462457 DOI: 10.1016/j.pbi.2022.102315] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/22/2022] [Revised: 10/22/2022] [Accepted: 10/27/2022] [Indexed: 06/17/2023]
Abstract
Plant biotechnologists seek to modify plants through genetic reprogramming, but our ability to precisely control gene expression in plants is still limited. Here, we review transcription and translation in the model plants Arabidopsis thaliana and Nicotiana benthamiana with an eye toward control points that may be used to predictably modify gene expression. We highlight differences in gene expression requirements between these plants and other species, and discuss the ways in which our understanding of gene expression has been used to engineer plants. This review is intended to serve as a resource for plant scientists looking to achieve precise control over gene expression.
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Affiliation(s)
- Vivian Zhong
- Department of Bioengineering, Stanford University, Stanford, CA, USA
| | - Bella N Archibald
- Department of Bioengineering, Stanford University, Stanford, CA, USA
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24
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Gao L, Huang D, Cheng M, Yan M, Wei Z, Xiao R, Du L, Wang G, Li R, Chen S, Yin L. Effect of Phanerochaete chrysosporium inoculation on manganese passivation and microbial community succession during electrical manganese residue composting. BIORESOURCE TECHNOLOGY 2023; 370:128497. [PMID: 36535618 DOI: 10.1016/j.biortech.2022.128497] [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: 09/29/2022] [Revised: 12/10/2022] [Accepted: 12/13/2022] [Indexed: 06/17/2023]
Abstract
Electrolytic manganese residue poses potentially threats to the environment and therefore needs eco-friendly treatment. Composting has been reported to effectively passivate heavy metals and alleviate their ecotoxicity. Observation of the Mn concentration during composting indicated that the mobility of Mn was significantly reduced, with the easily extraction fraction (acid extractable and easily reduction fraction) of Mn in the control pile (pile 1 without Phanerochaete chrysosporium inoculation) and treat pile (pile 2 with Phanerochaete chrysosporium inoculation) decreasing by 17% and 29%, respectively. The inoculation of Phanerochaete chrysosporium prompted the passivation of manganese, prolonged the thermophilic period, and enriched the microbial community structure, which was attributed to the rapid growth and reproduction of thermophilic bacteria. Moreover, Phanerochaete chrysosporium inoculation promoted the effect of pH on the stabilization of Mn, but the opposite contribution of organic matter. This study would provide a new perspective for remediating EMR contaminated soil via composting.
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Affiliation(s)
- Lan Gao
- College of Environmental Science and Engineering, Hunan University, Changsha 410082, PR China; Key Laboratory of Environmental Biology and Pollution Control, Hunan University, Ministry of Education, Changsha 410082, PR China
| | - Danlian Huang
- College of Environmental Science and Engineering, Hunan University, Changsha 410082, PR China; Key Laboratory of Environmental Biology and Pollution Control, Hunan University, Ministry of Education, Changsha 410082, PR China.
| | - Min Cheng
- College of Environmental Science and Engineering, Hunan University, Changsha 410082, PR China; Key Laboratory of Environmental Biology and Pollution Control, Hunan University, Ministry of Education, Changsha 410082, PR China
| | - Ming Yan
- College of Environmental Science and Engineering, Hunan University, Changsha 410082, PR China; Key Laboratory of Environmental Biology and Pollution Control, Hunan University, Ministry of Education, Changsha 410082, PR China
| | - Zhen Wei
- College of Environmental Science and Engineering, Hunan University, Changsha 410082, PR China; Key Laboratory of Environmental Biology and Pollution Control, Hunan University, Ministry of Education, Changsha 410082, PR China
| | - Ruihao Xiao
- College of Environmental Science and Engineering, Hunan University, Changsha 410082, PR China; Key Laboratory of Environmental Biology and Pollution Control, Hunan University, Ministry of Education, Changsha 410082, PR China
| | - Li Du
- College of Environmental Science and Engineering, Hunan University, Changsha 410082, PR China; Key Laboratory of Environmental Biology and Pollution Control, Hunan University, Ministry of Education, Changsha 410082, PR China
| | - Guangfu Wang
- College of Environmental Science and Engineering, Hunan University, Changsha 410082, PR China; Key Laboratory of Environmental Biology and Pollution Control, Hunan University, Ministry of Education, Changsha 410082, PR China
| | - Ruijin Li
- College of Environmental Science and Engineering, Hunan University, Changsha 410082, PR China; Key Laboratory of Environmental Biology and Pollution Control, Hunan University, Ministry of Education, Changsha 410082, PR China
| | - Sha Chen
- College of Environmental Science and Engineering, Hunan University, Changsha 410082, PR China; Key Laboratory of Environmental Biology and Pollution Control, Hunan University, Ministry of Education, Changsha 410082, PR China
| | - Lingshi Yin
- College of Environmental Science and Engineering, Hunan University, Changsha 410082, PR China; Key Laboratory of Environmental Biology and Pollution Control, Hunan University, Ministry of Education, Changsha 410082, PR China
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25
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Wani ZA, Ahmad Z, Asgher M, Bhat JA, Sharma M, Kumar A, Sharma V, Kumar A, Pant S, Lukatkin AS, Anjum NA. Phytoremediation of Potentially Toxic Elements: Role, Status and Concerns. PLANTS (BASEL, SWITZERLAND) 2023; 12:429. [PMID: 36771511 PMCID: PMC9921836 DOI: 10.3390/plants12030429] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/13/2022] [Revised: 01/06/2023] [Accepted: 01/16/2023] [Indexed: 06/18/2023]
Abstract
Environmental contamination with a myriad of potentially toxic elements (PTEs) is triggered by various natural and anthropogenic activities. However, the industrial revolution has increased the intensity of these hazardous elements and their concentration in the environment, which, in turn, could provoke potential ecological risks. Additionally, most PTEs pose a considerable nuisance to human beings and affect soil, aquatic organisms, and even nematodes and microbes. This comprehensive review aims to: (i) introduce potentially toxic elements; (ii) overview the major sources of PTEs in the major environmental compartments; (iii) briefly highlight the major impacts of PTEs on humans, plants, aquatic life, and the health of soil; (iv) appraise the major methods for tackling PTE-caused pollution; (v) discuss the concept and applications of the major eco-technological/green approaches (comprising phytoextraction, rhizofiltration, phytostabilization, phytovolatilization, and phytorestoration); (vi) highlight the role of microbes in phytoremediation under PTE stress; and (vii) enlighten the major role of genetic engineering in advancing the phytoremediation of varied PTEs. Overall, appropriate strategies must be developed in order to stop gene flow into wild species, and biosafety issues must be properly addressed. Additionally, consistent efforts should be undertaken to tackle the major issues (e.g., risk estimation, understanding, acceptance and feasibility) in order to guarantee the successful implementation of phytoremediation programs, raise awareness of this green technology among laymen, and to strengthen networking among scientists, stakeholders, industrialists, governments and non-government organizations.
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Affiliation(s)
- Zishan Ahmad Wani
- Conservation Ecology Lab, Department of Botany, Baba Ghulam Shah Badshah University, Rajouri 185234, JK, India
| | - Zeeshan Ahmad
- Department of Plant Sciences, Quaid-i-Azam University, Islamabad 45320, Pakistan
| | - Mohd Asgher
- Plant Physiology and Biochemistry Laboratory, Department of Botany, School of Biosciences and Biotechnology, Baba Ghulam Shah Badshah University, Rajouri 185234, JK, India
| | - Jahangeer A. Bhat
- College of Horticulture & Forestry, Rani Lakshmi Bai Central Agricultural University, Jhansi 284003, UP, India
| | - Manju Sharma
- Department of Environmental Science, Baba Ghulam Shah Badshah University, Rajouri 185234, JK, India
| | - Ashish Kumar
- G. B. Pant National Institute of Himalayan Environment, Garhwal Regional Centre, Srinagar Garhwal 246174, UK, India
| | - Virbala Sharma
- Department of Environmental Sciences, Central University of Himachal Pradesh, Dharamsala 176213, HP, India
| | - Amit Kumar
- School of Hydrology and Water Resources, Nanjing University of Information Science and Technology, Nanjing 210044, China
| | - Shreekar Pant
- Centre for Biodiversity Studies, Baba Ghulam Shah Badshah University, Rajouri 185234, JK, India
| | - Alexander S. Lukatkin
- Department of General Biology and Ecology, N.P. Ogarev Mordovia State University, Bolshevistskaja Str., 68, Saransk 430005, Russia
| | - Naser A. Anjum
- Plant Physiology and Biochemistry Laboratory, Department of Botany, Aligarh Muslim University, Aligarh 202002, UP, India
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Monroy-Licht A, Méndez-Cuadro D, Olivero-Verbel J. Elemental mercury accumulation in Eichhornia crassipes (Mart.) Solms-Laubach. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:9898-9913. [PMID: 36064851 DOI: 10.1007/s11356-022-22521-y] [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: 09/07/2021] [Accepted: 08/09/2022] [Indexed: 06/15/2023]
Abstract
The aquatic macrophyte Eichhornia crassipes has great potential for the control of Hg pollution in the environment. The aim of this study was to investigate the capability of E. crassipes to accumulate elemental mercury (Hg0). The plants were exposed for 30 days to 5, 10, 20, 40, and 80 mg of Hg0 in a 1-L Hoagland medium with the Hg0 settled at the bottom of the flask. The roots of the plants did not touch the mercury during the treatment. After exposure, the total Hg (T-Hg) concentrations in the roots, leaves, and stems were measured using a direct mercury (Hg) analyzer. The highest concentrations were found at 80 mg Hg0 treatment in the roots, leaves, and stems, in that order. The translocation factor indicated a poor capability of Hg to translocate from the roots to the shoots. The relative growth and the root-length inhibition measurements showed that the differences between Hg0 treatments were not significant. In addition, the treatments negatively affected the chlorophyll concentration. The carotenoid content was found to be significantly different at 20 and 40 mg of Hg0 in 1 L. Regarding the carbonyl index in root proteins, significant differences compared to control were found at the highest Hg treatment. Based on these results, it was shown that E. crassipes is able to take up elemental Hg from Hoagland medium. However, the Hg0 treatments did not show a strong stress-response activation mechanism in the evaluated plant tissues.
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Affiliation(s)
- Andrea Monroy-Licht
- Environmental and Computational Chemistry Group, School of Pharmaceutical Sciences, University of Cartagena, Zaragocilla Campus, 130014, Cartagena, Colombia
- Chemistry and Biology Group, Chemistry and Biology Department, Universidad del Norte, 081007, Barranquilla, Colombia
| | - Darío Méndez-Cuadro
- Analytical Chemistry and Biomedicine Group, Department of Biology, School of Exact and Natural Sciences, University of Cartagena, 130015, Cartagena de Indias, Colombia
| | - Jesus Olivero-Verbel
- Environmental and Computational Chemistry Group, School of Pharmaceutical Sciences, University of Cartagena, Zaragocilla Campus, 130014, Cartagena, Colombia.
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Xu J, Xing Y, Wang J, Yang Y, Ye C, Sun R. Effect of poly-γ-glutamic acid on the phytoremediation of ramie (Boehmeria nivea L.) in the Hg-contaminated soil. CHEMOSPHERE 2023; 312:137280. [PMID: 36403812 DOI: 10.1016/j.chemosphere.2022.137280] [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: 09/01/2022] [Revised: 10/26/2022] [Accepted: 11/15/2022] [Indexed: 06/16/2023]
Abstract
Farmlands around the Hg mining areas have suffered from severe Hg contamination issues, triggering a phenomenon of high Hg content in crops, and subsequently threatening human health. In this study, ramie (Boehmeria nivea L.) assisted with poly-γ-glutamic acid (γ-PGA) was employed to remediate the Hg-contaminated soil through incubation experiments. After the soil was amended with γ-PGA, the leaf Hg content increased by 4.4-fold, and the translocation factor value even reached 3.5, indicating that γ-PGA could dramatically enhance the translocation of Hg from root and stem to leaf. γ-PGA could induce the transformation of potentially available Hg to available fractions, resulting in the soil Hg being more bioavailable. Batch trials verified that γ-PGA could mask the adsorption function of Hg ions by soil organic matter, significantly stimulating the desorption of Hg ions from the soil. As a result, the soil Hg would transfer to the aqueous phase and be assimilated by the root of ramie more easily and effectively. The γ-PGA chelated Hg is hydrophilic and has a high affinity with -SH and -S-; thereby, it can easily stride over the Casparian strip, enter the vessel, be translocated upwards, be sequestered in the tissues of leaf, and be incorporated irreversibly. This study can provide a new method for the remediation of Hg-contaminated soil.
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Affiliation(s)
- Jing Xu
- School of Chemistry and Material, Guizhou Normal University, Guiyang 550025, China
| | - Ying Xing
- School of Chemistry and Material, Guizhou Normal University, Guiyang 550025, China
| | - Jun Wang
- School of Chemistry and Material, Guizhou Normal University, Guiyang 550025, China
| | - Yang Yang
- School of Life Sciences, Guizhou Normal University, Guiyang 550025, PR China
| | - Cai Ye
- School of Chemistry and Material, Guizhou Normal University, Guiyang 550025, China
| | - Rongguo Sun
- School of Chemistry and Material, Guizhou Normal University, Guiyang 550025, China.
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Tufail MA, Iltaf J, Zaheer T, Tariq L, Amir MB, Fatima R, Asbat A, Kabeer T, Fahad M, Naeem H, Shoukat U, Noor H, Awais M, Umar W, Ayyub M. Recent advances in bioremediation of heavy metals and persistent organic pollutants: A review. THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 850:157961. [PMID: 35963399 DOI: 10.1016/j.scitotenv.2022.157961] [Citation(s) in RCA: 27] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/07/2022] [Revised: 08/02/2022] [Accepted: 08/06/2022] [Indexed: 06/15/2023]
Abstract
Heavy metals and persistent organic pollutants are causing detrimental effects on the environment. The seepage of heavy metals through untreated industrial waste destroys the crops and lands. Moreover, incineration and combustion of several products are responsible for primary and secondary emissions of pollutants. This review has gathered the remediation strategies, current bioremediation technologies, and their primary use in both in situ and ex situ methods, followed by a detailed explanation for bioremediation over other techniques. However, an amalgam of bioremediation techniques and nanotechnology could be a breakthrough in cleaning the environment by degrading heavy metals and persistant organic pollutants.
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Affiliation(s)
| | - Jawaria Iltaf
- Institute of Chemistry, University of Sargodha, 40100, Pakistan
| | - Tahreem Zaheer
- Department of Biological Physics, Eötvös Loránd University, Pázmány Péter sétány 1/A, 1117 Budapest, Hungary
| | - Leeza Tariq
- Centre of Excellence in Molecular Biology, University of the Punjab, Lahore 53700, Pakistan
| | - Muhammad Bilal Amir
- Key Laboratory of Insect Ecology and Molecular Biology, College of Plant Health and Medicine, Qingdao Agricultural University, Qingdao 266109, China
| | - Rida Fatima
- School of Science, Department of Chemistry, University of Management and Technology, Lahore, Pakistan
| | - Ayesha Asbat
- Department of Pharmacy, The University of Lahore, Lahore, Pakistan
| | - Tahira Kabeer
- Center of Agriculture Biochemistry and Biotechnology CABB, University of Agriculture, Faisalabad, Pakistan
| | - Muhammad Fahad
- Department of Plant Breeding and Genetics, Bahauddin Zakariya University, Multan, Pakistan
| | - Hamna Naeem
- Department of Environmental Sciences, Fatima Jinnah Women University, The Mall, 46000 Rawalpindi, Pakistan
| | - Usama Shoukat
- Integrated Genomics Cellular Development Biology Lab, Department of Entomology, University of Agriculture, Faisalabad, Pakistan
| | - Hazrat Noor
- Department of Microbiology, Faculty of Biological Sciences, Quaid-i-Azam University, Islamabad 45320, Pakistan
| | - Muhammad Awais
- International Center for Chemical and Biological Sciences, University of Karachi, Karachi 75270, Pakistan
| | - Wajid Umar
- Institute of Environmental Science, Hungarian University of Agriculture and Life Sciences, Gödöllő 2100, Hungary
| | - Muhaimen Ayyub
- Institute of Soil and Environmental Sciences, University of Agriculture Faisalabad, Pakistan
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29
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Yin D, Zhou X, He T, Wu P, Ran S. Remediation of Mercury-Polluted Farmland Soils: A Review. BULLETIN OF ENVIRONMENTAL CONTAMINATION AND TOXICOLOGY 2022; 109:661-670. [PMID: 35690951 DOI: 10.1007/s00128-022-03544-0] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/26/2021] [Accepted: 05/09/2022] [Indexed: 06/15/2023]
Abstract
Mercury (Hg) bioaccumulation in Hg-polluted farmlands poses high health risk for humans and wildlife, and remediation work is urgently needed. Here, we first summarize some specific findings related to the environmental process of Hg in Hg-polluted farmlands, and distinguish the main achievements and deficiencies of available remediation strategies in recent studies. Results demonstrate that farmland is a sensitive area with vibrant Hg biogeochemistry. Current remediation methods are relatively hysteretic whether in mechanism understanding or field application, and deficient for large-scale Hg-polluted farmlands in view of safety, efficiency, sustainability, and cost-effectiveness. New perspectives including environment-friendly functional materials, assisted phytoremediation and agronomic regulations are worthy of further study as their key roles in reducing Hg exposure risk and protecting agricultural sustainability.
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Affiliation(s)
- Deliang Yin
- Key Laboratory of Karst Georesources and Environment, Ministry of Education, College of Resources and Environmental Engineering, Guizhou University, Guiyang, 550025, China
| | - Xian Zhou
- Key Laboratory of Karst Georesources and Environment, Ministry of Education, College of Resources and Environmental Engineering, Guizhou University, Guiyang, 550025, China
| | - Tianrong He
- Key Laboratory of Karst Georesources and Environment, Ministry of Education, College of Resources and Environmental Engineering, Guizhou University, Guiyang, 550025, China
| | - Pan Wu
- Key Laboratory of Karst Georesources and Environment, Ministry of Education, College of Resources and Environmental Engineering, Guizhou University, Guiyang, 550025, China.
| | - Shu Ran
- Key Laboratory of Karst Georesources and Environment, Ministry of Education, College of Resources and Environmental Engineering, Guizhou University, Guiyang, 550025, China
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30
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Yu Y, Li Z, Liu Y, Wang F, Liu Y, Zhao J, Li Y, Gao Y, Zhu N. Roles of plant-associated microorganisms in regulating the fate of Hg in croplands: A perspective on potential pathways in maintaining sustainable agriculture. THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 834:155204. [PMID: 35421489 DOI: 10.1016/j.scitotenv.2022.155204] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/20/2022] [Revised: 04/06/2022] [Accepted: 04/08/2022] [Indexed: 06/14/2023]
Abstract
In heavy metal-contaminated croplands, plant-associated microorganisms play important roles in the adaptation of crops to heavy metals. Plant-associated microbes can interact with Hg and stimulate plant resistance to Hg toxicity, which is crucial for impeding Hg accumulation along the food chain. The roles of rhizosphere microorganisms for the improvement of plant growth and Hg resistance have drawn great research attention. However, the interactions among plant-endophyte-Hg have been neglected although they might be important for in vivo Hg detoxification. In this study, we systematically summarized 1) the roles of plant-associated microorganisms in Hg detoxification and plant growth, 2) Hg methylation and demethylation driven by plant-associated microbes, 3) the relationships between plant-associated microbes and Hg biogeochemical cycling. The possible mechanisms underlying crop-endophyte-Hg interactions were discussed, although limited studies on this aspect are available to date. The challenges and perspectives of plant-endophytes in dampening Hg phytotoxicity and controlling Hg accumulation in croplands were proposed on the basis of the present knowledge. Taken together, this work provides evidence for further understanding the interactions between soil-plant-endophyte-Hg systems and as well as new interpretations and perspectives into regulating the fate of Hg in croplands.
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Affiliation(s)
- Yue Yu
- School of Grain Science and Technology, Jiangsu University of Science and Technology, Zhenjiang 212100, Jiangsu, China; State Environmental Protection Key Laboratory of Food Chain Pollution Control, Beijing Technology and Business University, Beijing 100048, China
| | - Zhanming Li
- School of Grain Science and Technology, Jiangsu University of Science and Technology, Zhenjiang 212100, Jiangsu, China; State Environmental Protection Key Laboratory of Food Chain Pollution Control, Beijing Technology and Business University, Beijing 100048, China; School of Environment, Hangzhou Institute for Advanced Study, University of Chinese Academy of Sciences, Hangzhou 310024, China.
| | - Yonghua Liu
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, & CAS-HKU Joint Laboratory of Metallomics on Health and Environment, & Beijing Metallomics Facility, & National Consortium for Excellence in Metallomics, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China; School of Chemical and Biological Engineering, Taiyuan University of Science and Technology, Taiyuan 030000, Shanxi, China
| | - Fang Wang
- State Environmental Protection Key Laboratory of Food Chain Pollution Control, Beijing Technology and Business University, Beijing 100048, China
| | - Yurong Liu
- State Key Laboratory of Agricultural Microbiology and College of Resources and Environment, Huazhong Agricultural University, Wuhan 430070, China
| | - Jiating Zhao
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, & CAS-HKU Joint Laboratory of Metallomics on Health and Environment, & Beijing Metallomics Facility, & National Consortium for Excellence in Metallomics, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China
| | - Yufeng Li
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, & CAS-HKU Joint Laboratory of Metallomics on Health and Environment, & Beijing Metallomics Facility, & National Consortium for Excellence in Metallomics, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China
| | - Yuxi Gao
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, & CAS-HKU Joint Laboratory of Metallomics on Health and Environment, & Beijing Metallomics Facility, & National Consortium for Excellence in Metallomics, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China
| | - Nali Zhu
- School of Environment, Hangzhou Institute for Advanced Study, University of Chinese Academy of Sciences, Hangzhou 310024, China.
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Kalinhoff C, Calderón NT. Mercury Phytotoxicity and Tolerance in Three Wild Plants during Germination and Seedling Development. PLANTS 2022; 11:plants11152046. [PMID: 35956524 PMCID: PMC9370237 DOI: 10.3390/plants11152046] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/11/2022] [Revised: 07/28/2022] [Accepted: 07/29/2022] [Indexed: 11/16/2022]
Abstract
By examining plant responses to heavy metal stress during the early stages of the life cycle, we can predict their tolerance and survival in polluted areas as well as their potential for bioremediation. The objective of our study was to evaluate the effect of exposure to mercury (Hg) on the germination and in vitro development of three plant species: Bidens pilosa, Taraxacum officinale (Asteraceae), and Heliocarpus americanus (Malvaceae). These are wild ecotypes adapted to local edaphoclimatic conditions in southern Ecuador, an area which has been historically affected by artisanal and small-scale gold mining (SSGM). For comparison, we additionally used a known Hg-tolerant plant, Lactuca sativa (Asteraceae). We tested biorelevant concentrations of Hg, equivalent to those occurring in soils affected by SSGM, i.e., up to 4.0 mg/L of Hg. The relative inhibitory effects of the treatments (0.6, 2.0, and 4.0 mg/L of Hg) on the germination percentage were most evident in T. officinale, followed by B. pilosa, while L. sativa and H. americanus were not affected. In terms of the time needed to reach 50% germination (T50), B. pilosa exposed to higher concentrations of Hg showed an increase in T50, while H. americanus showed a significant reduction compared to the control treatment. The reduction in radicle length at 4.0 mg/L Hg compared to the control was more evident in L. sativa (86%) than in B. pilosa (55.3%) and H. americanus (31.5%). We concluded that, in a scenario of Hg contamination in the evaluated concentration range, the grass B. pilosa and the tree H. americanus could have a higher probability of establishment and survival.
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Kalita M, Chakravarty P, Deka H. Understanding biochemical defense and phytoremediation potential of Leucas aspera in crude oil polluted soil. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2022; 29:57579-57590. [PMID: 35355178 DOI: 10.1007/s11356-022-19922-4] [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: 05/16/2021] [Accepted: 03/22/2022] [Indexed: 06/14/2023]
Abstract
The phytoremediation potential and enzymatic defense of a medicinal herb Leucas aspera was studied in the crude oil contaminated soil. The productivity, antioxidants, and phytochemical and functional group profiles of the plant species in stress conditions were investigated. Besides, changes in enzymes, beneficial bacterial population, and physico-chemical and total oil and grease (TOG) profiles in the contaminated soil were also studied. The results showed improvement in physico-chemical conditions, increase in beneficial bacterial population (4.1-5.4 folds), and decrease in TOG (31.3%) level of the contaminated soil by end of the experimental trials. The L. aspera treated contaminated soil showed enhancement in dehydrogenase (32.3%), urease (102.8%), alkaline phosphatase (174.4%), catalase (68.5%), amylase (76.16%), and cellulase (23.6%) activities by end of the experimental trials. Furthermore, there were significant variations in leaf area index, chlorophyll, and biomass contents of the experimental plant as against the initial level and control. Besides, the significant reduction in IC50 values (24-27.4%) of L. aspera samples grown in contaminated soil confirms the strong antioxidant enzymatic defense of the plant species against the crude oil associated abiotic stress. The Fourier-transform infrared (FT-IR) analysis confirmed the uptake and metabolism of aliphatic hydrocarbons, aldehydes, alkyl halides, and nitro compounds by the experimental plant from the contaminated soil.
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Affiliation(s)
- Meghali Kalita
- Ecology and Environmental Remediation Laboratory, Department of Botany, Gauhati University, Guwahati-14, Assam, India
| | - Paramita Chakravarty
- Ecology and Environmental Remediation Laboratory, Department of Botany, Gauhati University, Guwahati-14, Assam, India
| | - Hemen Deka
- Ecology and Environmental Remediation Laboratory, Department of Botany, Gauhati University, Guwahati-14, Assam, India.
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33
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Liu C, Li B, Dong Y, Lin H. Endophyte colonization enhanced cadmium phytoremediation by improving endosphere and rhizosphere microecology characteristics. JOURNAL OF HAZARDOUS MATERIALS 2022; 434:128829. [PMID: 35429753 DOI: 10.1016/j.jhazmat.2022.128829] [Citation(s) in RCA: 18] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/26/2021] [Revised: 03/19/2022] [Accepted: 03/29/2022] [Indexed: 06/14/2023]
Abstract
This study investigated the phytoremediation efficiency of Cd-contaminated soils by hyperaccumulator P. acinosa and its endophyte B. cereus, and evaluated the variation of rhizosphere/endosphere microecology characteristics. The result showed that endophyte PE31, which could successfully colonize on P. acinosa root, increased plant Cd uptake by 42.90% and 28.85% in low and high Cd contaminated soils by promotion of plant biomass and Cd concentration in plant tissues. The improved phytoremediation may attribute to the endophyte inoculation, which significantly improved the bioavailable heavy metal (HM) percentage, nutrient cycling related enzyme activities and nutrient contents including available potassium, phosphorus and organic matter. Additionally, the relative abundance beneficial bacteria Bacillus (significantly increased by 81.23% and 34.03% in the endosphere, and by 4.86% and 8.54% in rhizosphere in low and high Cd contaminated soils) and Lysobacter, showed positive and close correlation with plant growth and HM accumulation. These results indicated that endophyte inoculation could reshape rhizosphere and endosphere microecology characteristics, which enhanced the potential for phytoremediation of Cd contaminated soils.
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Affiliation(s)
- Chenjing Liu
- School of Energy and Environmental Engineering, University of Science and Technology Beijing, Beijing 100083, China; Beijing Key Laboratory on Resource-Oriented Treatment of Industrial Pollutants, Beijing 100083, China
| | - Bing Li
- School of Energy and Environmental Engineering, University of Science and Technology Beijing, Beijing 100083, China; Beijing Key Laboratory on Resource-Oriented Treatment of Industrial Pollutants, Beijing 100083, China
| | - Yingbo Dong
- School of Energy and Environmental Engineering, University of Science and Technology Beijing, Beijing 100083, China; Beijing Key Laboratory on Resource-Oriented Treatment of Industrial Pollutants, Beijing 100083, China
| | - Hai Lin
- School of Energy and Environmental Engineering, University of Science and Technology Beijing, Beijing 100083, China; Beijing Key Laboratory on Resource-Oriented Treatment of Industrial Pollutants, Beijing 100083, China.
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Gao Y, Wu P, Jeyakumar P, Bolan N, Wang H, Gao B, Wang S, Wang B. Biochar as a potential strategy for remediation of contaminated mining soils: Mechanisms, applications, and future perspectives. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2022; 313:114973. [PMID: 35398638 DOI: 10.1016/j.jenvman.2022.114973] [Citation(s) in RCA: 27] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/09/2022] [Revised: 03/14/2022] [Accepted: 03/24/2022] [Indexed: 06/14/2023]
Abstract
Soil heavy metal contamination caused by mining activities is a global issue. These heavy metals can be enriched in plants and animals through the food chain, and eventually transferred to the human system and threatening public health. Biochar, as an environmentally friendly soil remediation agent, can effectively immobilize heavy metals in soil. However, most researchers concern more about the remediation effect and mechanism of biochar for industrial and agricultural contaminated soil, while related reviews focusing on mining soil remediation are limited. Furthermore, the remediation effect of soil in mining areas is affected by many factors, such as physicochemical properties of biochar, pyrolysis conditions, soil conditions, mining environment and application method, which can lead to great differences in the remediation effect of biochar in diverse mining areas. Therefore, it is necessary to systematically unravel the relevant knowledge of biochar remediation, which can also provide a guide for future studies on biochar remediation of contaminated soils in mining areas. The present paper first reviews the negative effects of mining activities on soil and the advantages of biochar relative to other remediation methods, followed by the mechanism and influencing factors of biochar on reducing heavy metal migration and bioavailability in mining soil were systematically summarized. Finally, the main research directions and development trends in the future are pointed out, and suggestions for future development are proposed.
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Affiliation(s)
- Yining Gao
- College of Resource and Environmental Engineering, Guizhou University, Guiyang, 550025, Guizhou, China
| | - Pan Wu
- College of Resource and Environmental Engineering, Guizhou University, Guiyang, 550025, Guizhou, China; Key Laboratory of Karst Environment and Geohazard, Ministry of Natural Resources, Guiyang, 550025, Guizhou, China
| | - Paramsothy Jeyakumar
- Environmental Sciences, School of Agriculture and Environment, Massey University, Private Bag 11 222, Palmerston North, 4442, New Zealand
| | - Nanthi Bolan
- The Global Centre for Environmental Remediation, University of Newcastle, Callaghan, NSW, Australia
| | - Hailong Wang
- Biochar Engineering Technology Research Center of Guangdong Province, School of Environment and Chemical Engineering, Foshan University, Foshan, Guangdong, 528000, China
| | - Bin Gao
- Department of Agricultural and Biological Engineering, University of Florida, Gainesville, FL, USA
| | - Shengsen Wang
- College of Environmental Science and Engineering, Yangzhou University, Yangzhou, 225127, China
| | - Bing Wang
- College of Resource and Environmental Engineering, Guizhou University, Guiyang, 550025, Guizhou, China; Key Laboratory of Karst Environment and Geohazard, Ministry of Natural Resources, Guiyang, 550025, Guizhou, China.
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Sabreena, Hassan S, Bhat SA, Kumar V, Ganai BA, Ameen F. Phytoremediation of Heavy Metals: An Indispensable Contrivance in Green Remediation Technology. PLANTS (BASEL, SWITZERLAND) 2022; 11:1255. [PMID: 35567256 PMCID: PMC9104525 DOI: 10.3390/plants11091255] [Citation(s) in RCA: 28] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/12/2022] [Revised: 04/29/2022] [Accepted: 05/01/2022] [Indexed: 08/01/2023]
Abstract
Environmental contamination is triggered by various anthropogenic activities, such as using pesticides, toxic chemicals, industrial effluents, and metals. Pollution not only affects both lotic and lentic environments but also terrestrial habitats, substantially endangering plants, animals, and human wellbeing. The traditional techniques used to eradicate the pollutants from soil and water are considered expensive, environmentally harmful and, typically, inefficacious. Thus, to abate the detrimental consequences of heavy metals, phytoremediation is one of the sustainable options for pollution remediation. The process involved is simple, effective, and economically efficient with large-scale extensive applicability. This green technology and its byproducts have several other essential utilities. Phytoremediation, in principle, utilizes solar energy and has an extraordinary perspective for abating and assembling heavy metals. The technique of phytoremediation has developed in contemporary times as an efficient method and its success depends on plant species selection. Here in this synthesis, we are presenting a scoping review of phytoremediation, its basic principles, techniques, and potential anticipated prospects. Furthermore, a detailed overview pertaining to biochemical aspects, progression of genetic engineering, and the exertion of macrophytes in phytoremediation has been provided. Such a promising technique is economically effective as well as eco-friendly, decontaminating and remediating the pollutants from the biosphere.
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Affiliation(s)
- Sabreena
- Department of Environmental Science, University of Kashmir, Srinagar 190006, India; (S.); (S.H.)
| | - Shahnawaz Hassan
- Department of Environmental Science, University of Kashmir, Srinagar 190006, India; (S.); (S.H.)
| | - Sartaj Ahmad Bhat
- River Basin Research Center, Gifu University, 1-1 Yanagido, Gifu 501-1193, Japan
| | - Vineet Kumar
- Department of Botany, Guru Ghasidas Vishwavidyalaya (A Central University), Chhattisgarh, Bilaspur 495009, India;
| | - Bashir Ahmad Ganai
- Department of Environmental Science, University of Kashmir, Srinagar 190006, India; (S.); (S.H.)
- Centre of Research for Development, University of Kashmir, Srinagar 190006, India
| | - Fuad Ameen
- Department of Botany and Microbiology, College of Science, King Saud University, Riyadh 11451, Saudi Arabia;
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Chamba-Eras I, Griffith DM, Kalinhoff C, Ramírez J, Gázquez MJ. Native Hyperaccumulator Plants with Differential Phytoremediation Potential in an Artisanal Gold Mine of the Ecuadorian Amazon. PLANTS (BASEL, SWITZERLAND) 2022; 11:plants11091186. [PMID: 35567187 PMCID: PMC9099852 DOI: 10.3390/plants11091186] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/21/2022] [Revised: 04/12/2022] [Accepted: 04/21/2022] [Indexed: 05/30/2023]
Abstract
In tropical forests of southern Ecuador, artisanal gold mining releases heavy metals that become xenobiotic with indefinite circulation and eventual bioaccumulation. Restoration and rehabilitation of degraded mining sites represent a major ecological, technological and economic issue. In this study, we estimate the capacity of two native woody plants to accumulate cadmium (Cd), lead (Pb), zinc (Zn) and mercury (Hg), with the goal of developing effective strategies for phytoremediation of mining sites. Individuals of Erato polymnioides and Miconia sp., as well as their rhizospheric soils, were sampled from a natural zone (NZ) of montane cloud forest, used as a control, and a polluted zone (PZ) subjected to active gold mining. Concentrations of the four heavy metals were analyzed using atomic absorption spectrophotometry. Cd, Zn and Hg concentrations were higher in soils of PZ than NZ. Bioaccumulation (BCF) and translocation factors (TF) showed that Miconia sp. has potential for Cd and Zn phytostabilization, E. polymnioides has potential for Cd and Zn phytoextraction, and both species have potential for Hg phytoextraction. Despite the low productivity of these species, their adaptability to the edaphoclimatic conditions of the region and the possibility of using amendments to increase their biomass could compensate for the effectiveness of these species in reclaiming soils contaminated by mining.
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Affiliation(s)
- Irene Chamba-Eras
- Departamento de Química, Universidad Técnica Particular de Loja, San Cayetano Alto s/n, Loja 1101608, Ecuador;
| | - Daniel M. Griffith
- Departamento de Ciencias Biológicas y Agropecuarias, Universidad Técnica Particular de Loja, San Cayetano Alto s/n, Loja 1101608, Ecuador; (D.M.G.); (C.K.)
| | - Carolina Kalinhoff
- Departamento de Ciencias Biológicas y Agropecuarias, Universidad Técnica Particular de Loja, San Cayetano Alto s/n, Loja 1101608, Ecuador; (D.M.G.); (C.K.)
| | - Jorge Ramírez
- Departamento de Química, Universidad Técnica Particular de Loja, San Cayetano Alto s/n, Loja 1101608, Ecuador;
| | - Manuel Jesús Gázquez
- Departamento de Física Aplicada, Escuela Superior de Ingeniería, Universidad de Cádiz, Campus de Puerto Real avenida, República Saharahui s/n, 11510 Puerto Real, Spain;
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37
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Yu RQ, Barkay T. Microbial mercury transformations: Molecules, functions and organisms. ADVANCES IN APPLIED MICROBIOLOGY 2022; 118:31-90. [PMID: 35461663 DOI: 10.1016/bs.aambs.2022.03.001] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
Mercury (Hg) methylation, methylmercury (MeHg) demethylation, and inorganic redox transformations of Hg are microbe-mediating processes that determine the fate and cycling of Hg and MeHg in many environments, and by doing so influence the health of humans and wild life. The discovery of the Hg methylation genes, hgcAB, in the last decade together with advances in high throughput and genome sequencing methods, have resulted in an expanded appreciation of the diversity of Hg methylating microbes. This review aims to describe experimentally confirmed and recently discovered hgcAB gene-carrying Hg methylating microbes; phylogenetic and taxonomic analyses are presented. In addition, the current knowledge on transformation mechanisms, the organisms that carry them out, and the impact of environmental parameters on Hg methylation, MeHg demethylation, and inorganic Hg reduction and oxidation is summarized. This knowledge provides a foundation for future action toward mitigating the impact of environmental Hg pollution.
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Affiliation(s)
- Ri-Qing Yu
- Department of Biology, University of Texas at Tyler, Tyler, TX, United States.
| | - Tamar Barkay
- Department of Biochemistry and Microbiology, Rutgers, The State University of New Jersey, New Brunswick, NJ, United States
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Wen K, Li X, Huang R, Nian H. Application of exogenous glutathione decreases chromium translocation and alleviates its toxicity in soybean (Glycine max L.). ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2022; 234:113405. [PMID: 35298965 DOI: 10.1016/j.ecoenv.2022.113405] [Citation(s) in RCA: 22] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/26/2021] [Revised: 12/23/2021] [Accepted: 03/07/2022] [Indexed: 06/14/2023]
Abstract
Chromium is considered one of the most severe toxic elements affecting agriculture. Soybean seedlings under chromium stress were treated with glutathione and buthionine sulfoximine. The effects of exogenous glutathione on the physiological effects of two different chromium-resistant soybean seedlings and the expression levels of expression levels related genes were studied. This study tested the seedling weight and SPAD values, detected enzymatic antioxidants (i.e., superoxide dismutase, peroxidase, catalase, catalase, ascorbate peroxidase), and non-enzymatic antioxidants (i.e., glutathione, proline, soluble sugars, and soluble phenols) that attenuate chromium-induced reactive oxygen species, and quantified several genes associated with glutathione-mediated chromium stress. The results showed that exogenous glutathione could improve the physiological adaptability of soybean seedlings by regulating photosynthesis, antioxidant, and related enzyme activities, osmotic system, the compartmentalization of ion chelation, and regulating the transcription level of related genes, thereby increasing the chromium accumulation of soybean seedlings, enhancing the tolerance of chromium stress, and reducing the toxicity of chromium. Overall, the application of glutathione alleviates chromium toxicity in soybeans, and this strategy may be a potential farming option for soybean bioremediation in chromium-contaminated soils.
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Affiliation(s)
- Ke Wen
- The State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, South China Agricultural University, Guangzhou, Guangdong 510642, People's Republic of China; The Key Laboratory of Plant Molecular Breeding of Guangdong Province, College of Agriculture, South China Agricultural University, Guangzhou, 510642 Guangdong, People's Republic of China; The National Engineering Research Center of Plant Space Breeding, South China Agricultural University, Guangzhou, Guangdong 510642, People's Republic of China; The Guangdong Subcenter of the National Center for Soybean Improvement, College of Agriculture, South China Agricultural University, Guangzhou 510642, People's Republic of China; Zengcheng Teaching and Research Bases, South China Agricultural University, Guangzhou 510642, People's Republic of China.
| | - Xingang Li
- The State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, South China Agricultural University, Guangzhou, Guangdong 510642, People's Republic of China; The Key Laboratory of Plant Molecular Breeding of Guangdong Province, College of Agriculture, South China Agricultural University, Guangzhou, 510642 Guangdong, People's Republic of China; The National Engineering Research Center of Plant Space Breeding, South China Agricultural University, Guangzhou, Guangdong 510642, People's Republic of China; The Guangdong Subcenter of the National Center for Soybean Improvement, College of Agriculture, South China Agricultural University, Guangzhou 510642, People's Republic of China; Zengcheng Teaching and Research Bases, South China Agricultural University, Guangzhou 510642, People's Republic of China.
| | - Rong Huang
- The State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, South China Agricultural University, Guangzhou, Guangdong 510642, People's Republic of China; The Key Laboratory of Plant Molecular Breeding of Guangdong Province, College of Agriculture, South China Agricultural University, Guangzhou, 510642 Guangdong, People's Republic of China; The National Engineering Research Center of Plant Space Breeding, South China Agricultural University, Guangzhou, Guangdong 510642, People's Republic of China; The Guangdong Subcenter of the National Center for Soybean Improvement, College of Agriculture, South China Agricultural University, Guangzhou 510642, People's Republic of China; Zengcheng Teaching and Research Bases, South China Agricultural University, Guangzhou 510642, People's Republic of China.
| | - Hai Nian
- The State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, South China Agricultural University, Guangzhou, Guangdong 510642, People's Republic of China; The Key Laboratory of Plant Molecular Breeding of Guangdong Province, College of Agriculture, South China Agricultural University, Guangzhou, 510642 Guangdong, People's Republic of China; The National Engineering Research Center of Plant Space Breeding, South China Agricultural University, Guangzhou, Guangdong 510642, People's Republic of China; The Guangdong Subcenter of the National Center for Soybean Improvement, College of Agriculture, South China Agricultural University, Guangzhou 510642, People's Republic of China; Zengcheng Teaching and Research Bases, South China Agricultural University, Guangzhou 510642, People's Republic of China.
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Shen X, Dai M, Yang J, Sun L, Tan X, Peng C, Ali I, Naz I. A critical review on the phytoremediation of heavy metals from environment: Performance and challenges. CHEMOSPHERE 2022; 291:132979. [PMID: 34801572 DOI: 10.1016/j.chemosphere.2021.132979] [Citation(s) in RCA: 69] [Impact Index Per Article: 34.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/07/2021] [Revised: 11/03/2021] [Accepted: 11/17/2021] [Indexed: 05/22/2023]
Abstract
Phytoremediation is an effective, green and economical technique. Different types of phytoremediation methods can be used for the reduction of heavy metal contaminations, such as phytoextraction, phytovolatilization, phytostabilization and phytofiltration. The biomass of plants and the bioavailability of heavy metals in soil are the key factors affecting the efficiency of phytoremediation. It's worth noting that the low remediation efficiency and the lack of effective disposal methods for contaminated biomass have limited its development and application. At present, biological, physical, chemical, agronomic and genetic approaches have been used to enhance phytoremediation. Disposal methods of contaminated biomass usually include pyrolysis, incineration, composting and compaction. They are effective, but are costly and have security problems. Improper disposal of contaminated biomass can lead to leaching of heavy metals. The leaching possibility of different forms of heavy metal in plants is different. Hence, it has great significance to explore the different forms of heavy metals in plants which can help to explore appropriate disposal methods. According to the challenges of phytoremediation, we put forward some views and recommendations for the sustainable and rapid development of phytoremediation technology.
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Affiliation(s)
- Xing Shen
- The Key Lab of Marine Environmental Science and Ecology, Ministry of Education, College of Environmental Science and Engineering, Ocean University of China, Qingdao, 266100, China; Guangdong Provincial Key Laboratory of Environmental Health and Land Resource, Zhaoqing University, Zhaoqing, 526061, China.
| | - Min Dai
- Guangdong Provincial Key Laboratory of Environmental Health and Land Resource, Zhaoqing University, Zhaoqing, 526061, China.
| | - Jiawei Yang
- The Key Lab of Marine Environmental Science and Ecology, Ministry of Education, College of Environmental Science and Engineering, Ocean University of China, Qingdao, 266100, China; Guangdong Provincial Key Laboratory of Environmental Health and Land Resource, Zhaoqing University, Zhaoqing, 526061, China.
| | - Lin Sun
- The Key Lab of Marine Environmental Science and Ecology, Ministry of Education, College of Environmental Science and Engineering, Ocean University of China, Qingdao, 266100, China; Guangdong Provincial Key Laboratory of Environmental Health and Land Resource, Zhaoqing University, Zhaoqing, 526061, China.
| | - Xiao Tan
- Key Laboratory of Integrated Regulation and Resource Development on Shallow Lakes, Ministry of Education, Department of Environmental Engineering, College of Environment, Hohai University, Nanjing, 210098, China.
| | - Changsheng Peng
- The Key Lab of Marine Environmental Science and Ecology, Ministry of Education, College of Environmental Science and Engineering, Ocean University of China, Qingdao, 266100, China; Guangdong Provincial Key Laboratory of Environmental Health and Land Resource, Zhaoqing University, Zhaoqing, 526061, China.
| | - Imran Ali
- Department of Environmental Science and Engineering, College of Chemistry and Environmental Engineering, Shenzhen University, Shenzhen, 518060, China.
| | - Iffat Naz
- Department of Biology, Deanship of Educational Services, Qassim University, Buraidah, 51452, Saudi Arabia.
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Applications of Biochar and Modified Biochar in Heavy Metal Contaminated Soil: A Descriptive Review. SUSTAINABILITY 2021. [DOI: 10.3390/su132414041] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
Given that the problem of contaminated soil continues to grow, the development of effective control and remediation measures has become imperative, especially for heavy-metal-contaminated soil. Biochar and modified biochar are eco-friendly and cost-effective remediation materials that are widely used in the remediation of contaminated soil. This review provides an overview of the different raw materials used in the preparation of biochar as well as the modification of biochar using various synthesis methods, highlighting their differences and providing recommendations for biochar and modified biochar as applied toward ameliorating pollution in soil contaminated by heavy metals. We also explore the effects of the physicochemical properties of raw materials, pyrolysis temperature, additives, and modification methods on the properties of the resulting biochar and modified biochar, and systematically present the types of soil and operating factors for repair. Moreover, the mechanisms involved in remediation of heavy-metal-contaminated soil by biochar and modified biochar are outlined in detail, and include adsorption, complexation, precipitation, ion exchange, and electrostatic attractions. Finally, the corresponding monitoring technologies after remediation are illustrated. Future directions for studies on biochar and modified biochar in the remediation of contaminated soil are also proposed to support the development of green environmental protection materials, simple preparation methods, and effective follow-up monitoring techniques.
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Liu Z, Tran KQ. A review on disposal and utilization of phytoremediation plants containing heavy metals. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2021; 226:112821. [PMID: 34571420 DOI: 10.1016/j.ecoenv.2021.112821] [Citation(s) in RCA: 46] [Impact Index Per Article: 15.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/21/2021] [Revised: 09/02/2021] [Accepted: 09/20/2021] [Indexed: 06/13/2023]
Abstract
The reasonable disposal of plant biomass containing heavy metals (HMs) is a difficult problem for the phytoremediation technology. This review summarizes current literature that introduces various disposal and utilization methods (heat treatment, extraction treatment, microbial treatment, compression landfill, and synthesis of nanomaterials) for phytoremediation plants with HMs. The operation process and technical parameters of each disposal method are different. HMs can migrate and transform in different disposal processes. Some disposal and utilization methods can get some by-products. The main purpose of this paper is to provide reference for technical parameters and characteristics of various disposal and utilization methods, so as to choose and use the appropriate method for the treatment of plant biomass containing HMs after phytoremediation.
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Affiliation(s)
- Zhongchuang Liu
- Green Intelligence Environmental School, Yangtze Normal University, 16 Juxian Rd. Lidu, Fuling District, Chongqing, China; Chongqing Multiple-source Technology Engineering Research Center for Ecological Environment Monitoring, Yangtze Normal University, 16 Juxian Rd. Lidu, Fuling District, Chongqing, China.
| | - Khanh-Quang Tran
- Department of Energy and Process Engineering, Norwegian University of Science and Technology, NO-7491 Trondheim, Norway.
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Man Y, Wang B, Wang J, Slaný M, Yan H, Li P, El-Naggar A, Shaheen SM, Rinklebe J, Feng X. Use of biochar to reduce mercury accumulation in Oryza sativa L: A trial for sustainable management of historically polluted farmlands. ENVIRONMENT INTERNATIONAL 2021; 153:106527. [PMID: 33784588 DOI: 10.1016/j.envint.2021.106527] [Citation(s) in RCA: 30] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/28/2020] [Revised: 03/05/2021] [Accepted: 03/12/2021] [Indexed: 06/12/2023]
Abstract
Mitigating the risk of mercury (Hg) contamination in rice soils using environmental friendly amendments is essential to reducing the probable daily intake (PDI) of MeHg via rice consumption. Here, we examined the impacts of different doses (0% (control), 0.6% and 3%) of rice hull-derived biochar (RHB) and mixture of wheat-rice straw-derived biochar (RWB) on the fractionation, phytoavailability, and uptake of total (THg) and methyl Hg (MeHg) by rice in Hg-polluted soil (THg = 78.3 mg kg-1) collected from Wanshan Hg mining area. Both biochars increased rice biomass up to 119% as compared to control. Application of RHB and RWB significantly (P ≤ 0.05) decreased bioavailable Hg (soluble and exchangeable and specifically-sorbed fractions) concentrations by 55-71% and 67-72%, respectively. The addition of RHB significantly decreased MeHg concentrations in the soil. However, RWB (particularly at 3%) increased significantly MeHg concentrations in the soil as compared to the control and RHB treatments, likely due to the increased abundance of Hg-methylation microorganisms (e.g., Geobacter spp., Nitrospira spp.) in the RWB treatments. Both RHB and RWB significantly decreased MeHg concentrations in the rice grain by 55-85%. We estimated a reduction of the PDI of MeHg from 0.26 μg kg-1 bw d-1of control to below the reference dose (0.1 μg kg-1 bw d-1) of two biochar treatments. Our results highlight the potentiality of RWB and RHB for mitigating MeHg accumulation in rice and reducing PDI of MeHg via rice consumption, which offers a sustainable approach for management of Hg-polluted soils.
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Affiliation(s)
- Yi Man
- State Key Laboratory of Environmental Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences, Guiyang 550081, PR China; University of Chinese Academy of Sciences, Beijing 100049, PR China
| | - Bo Wang
- State Key Laboratory of Environmental Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences, Guiyang 550081, PR China; University of Chinese Academy of Sciences, Beijing 100049, PR China
| | - Jianxu Wang
- State Key Laboratory of Environmental Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences, Guiyang 550081, PR China; CAS Center for Excellence in Quaternary Science and Global Change, Xi'an, 710061, China.
| | - Michal Slaný
- Institute of Inorganic Chemistry, Slovak Academy of Sciences, Dúbravská cesta 9, 84536 Bratislava, Slovakia; Institute of Construction and Architecture, Slovak Academy of Sciences, Dúbravská cesta 9, 84503 Bratislava, Slovakia.
| | - Haiyu Yan
- State Key Laboratory of Environmental Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences, Guiyang 550081, PR China.
| | - Ping Li
- State Key Laboratory of Environmental Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences, Guiyang 550081, PR China
| | - Ali El-Naggar
- Department of Soil Sciences, Faculty of Agriculture, Ain Shams University, Cairo 11241, Egypt
| | - Sabry M Shaheen
- 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, 42285 Wuppertal, Germany; Department of Arid Land Agriculture, Faculty of Meteorology, Environment, and Arid Land Agriculture, King Abdulaziz University, Jeddah 21589, Saudi Arabia; Department of Soil and Water Sciences, Faculty of Agriculture, University of Kafrelsheikh, 33516 Kafr El-Sheikh, Egypt.
| | - 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, 42285 Wuppertal, Germany; University of Sejong, Department of Environment, Energy and Geoinformatics, Guangjin-Gu, Seoul 05006, Republic of Korea.
| | - Xinbin Feng
- State Key Laboratory of Environmental Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences, Guiyang 550081, PR China; CAS Center for Excellence in Quaternary Science and Global Change, Xi'an, 710061, China
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Sarma H, Islam NF, Prasad R, Prasad MNV, Ma LQ, Rinklebe J. Enhancing phytoremediation of hazardous metal(loid)s using genome engineering CRISPR-Cas9 technology. JOURNAL OF HAZARDOUS MATERIALS 2021; 414:125493. [PMID: 34030401 DOI: 10.1016/j.jhazmat.2021.125493] [Citation(s) in RCA: 40] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/21/2020] [Revised: 02/15/2021] [Accepted: 02/21/2021] [Indexed: 05/15/2023]
Abstract
Rapid and drastic changes in the global climate today have given a strong impetus to developing newer climate-resilient phytoremediation approaches. These methods are of great public and scientific importance given the urgency of this environmental crisis. Climate change has adverse effects on the growth, outputs, phenology, and overall productivity of plants. Contamination of soil with metal(loid)s is a major worldwide problem. Some metal(loids) are carcinogenic pollutants that have a long half-life and are non-degradable in the environment. There are many instances of the potential link between chronic heavy metal exposure and human disease. The adaptation of plants in the changing environment is, however, a major concern in phytoremediation practice. The creation of climate-resistant metal hyperaccumulation plants using molecular techniques could provide new opportunities to mitigate these problems. Consequently, advancements in molecular science would accelerate our knowledge of adaptive plant remediation/resistance and plant production in the context of global warming. Genome modification using artificial nucleases has the potential to enhance phytoremediation by modifying genomes for a sustainable future. This review focuses on biotechnology to boost climate change tolerant metallicolous plants and the future prospects of such technology, particularly the CRISPR-Cas9 genome editing system, for enhancing phytoremediation of hazardous pollutants.
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Affiliation(s)
- Hemen Sarma
- Department of Botany, N N Saikia College, Titabar 785 630, Assam, India
| | - N F Islam
- Department of Botany, N N Saikia College, Titabar 785 630, Assam, India
| | - Ram Prasad
- Department of Botany, School of Life Sciences, Mahatma Gandhi Central University, Motihari 845401, Bihar, India
| | - M N V Prasad
- School of Life Sciences, University of Hyderabad, Hyderabad 500046 Telangana, India
| | - Lena Q Ma
- Institute of Soil and Water Resources and Environmental Science, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou 310058, China
| | - Jörg Rinklebe
- Laboratory of Soil-, and Groundwater-Management, Institute of Soil Engineering, Waste and Water Science, Faculty of Architecture and Civil Engineering, University of Wuppertal, Pauluskirchstraße 7, 42285 Wuppertal, Germany; University of Sejong, Department of Environment, Energy and Geoinformatics, 98 Gunja-Dong, Guangjin-Gu, Seoul, Republic of Korea.
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Calabrese EJ, Agathokleous E. Accumulator plants and hormesis. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2021; 274:116526. [PMID: 33545523 DOI: 10.1016/j.envpol.2021.116526] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/23/2020] [Revised: 01/12/2021] [Accepted: 01/13/2021] [Indexed: 05/17/2023]
Abstract
Accumulation of metals by plants is an important area of investigation in plant ecology and evolution as well as in soil contamination/phytoremediation practices. This paper reports that hormetic-biphasic dose-response relationships were commonly observed for multiple agents (i.e. arsenic, cadmium, chromium, fluoride, lead, and zinc) and 20 species in plant (hyper)accumulator studies. The hormetic stimulation was related to metal accumulation in affected tissues, with the metal stimulation concentration zone unique for each metal, species, tissue, and endpoint studied. However, quantitative features of the hormetic dose response were similar across all (hyper)accumulation studies, with results independent of plant species, endpoints measured, and metal. The dose-dependent stimulatory and inhibitory/toxic plant responses were often associated with the up- and down-regulation of adaptive mechanisms, especially those involving anti-oxidative enzymatic processes. These findings provide a mechanistic framework to account for both the qualitative and quantitative features of the hormetic dose response in plant (hyper)accumulator studies.
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Affiliation(s)
- Edward J Calabrese
- Environmental Health Sciences, Morrill I, N344, University of Massachusetts, Amherst, MA, 01003, United States.
| | - Evgenios Agathokleous
- School of Applied Meteorology, Nanjing University of Information Science and Technology, Ningliu Rd 219, Nanjing, Jiangsu, 21044, China.
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Phytoremediation and Microorganisms-Assisted Phytoremediation of Mercury-Contaminated Soils: Challenges and Perspectives. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2021; 18:ijerph18052435. [PMID: 33801363 PMCID: PMC7967564 DOI: 10.3390/ijerph18052435] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/22/2021] [Revised: 02/18/2021] [Accepted: 02/24/2021] [Indexed: 01/01/2023]
Abstract
Mercury (Hg) pollution is a global threat to human and environmental health because of its toxicity, mobility and long-term persistence. Although costly engineering-based technologies can be used to treat heavily Hg-contaminated areas, they are not suitable for decontaminating agricultural or extensively-polluted soils. Emerging phyto- and bioremediation strategies for decontaminating Hg-polluted soils generally involve low investment, simple operation, and in situ application, and they are less destructive for the ecosystem. Current understanding of the uptake, translocation and sequestration of Hg in plants is reviewed to highlight new avenues for exploration in phytoremediation research, and different phytoremediation strategies (phytostabilization, phytoextraction and phytovolatilization) are discussed. Research aimed at identifying suitable plant species and associated-microorganisms for use in phytoremediation of Hg-contaminated soils is also surveyed. Investigation into the potential use of transgenic plants in Hg-phytoremediation is described. Recent research on exploiting the beneficial interactions between plants and microorganisms (bacteria and fungi) that are Hg-resistant and secrete plant growth promoting compounds is reviewed. We highlight areas where more research is required into the effective use of phytoremediation on Hg-contaminated sites, and conclude that the approaches it offers provide considerable potential for the future.
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Makarova A, Nikulina E, Tsirulnikova N, Avdeenkova T, Pishchaeva KV. Potential of S-containing and P-containing complexones in improving phytoextraction of mercury by Trifolium repens L.. Saudi J Biol Sci 2021; 28:3037-3048. [PMID: 34025180 PMCID: PMC8117166 DOI: 10.1016/j.sjbs.2021.02.045] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2020] [Revised: 02/09/2021] [Accepted: 02/10/2021] [Indexed: 11/28/2022] Open
Abstract
Mercury is a global pollutant in the modern world. There is a large number of areas in the world where mercury is present in soils in significant quantities. Remediation methods which have traditionally been proposed may pose a risk of secondary mercury contamination and/or adverse health effects for cleaners. Phytoextraction of heavy metals from the soil environment is currently considered one of the promising non-invasive methods of remediation. But this approach has limited effectiveness. Chemically induced phytoextraction can increase the efficiency of this process both by converting less bioavailable mercury compounds to bioavailable fractions in the soil and by increasing the rate of transfer of metals in plants. This paper presents the results of a screening study of various chemical amendments to enhance the phytoextraction of mercury by Trifolium repens L. The results showed good potential for the induction of phytoextraction of phosphorus(P) and sulfur (S)-containing chelates. With this study, for the first time for the phytoextraction of mercury, the monoethanolamine salt of 2,2′-(ethylenedithio) diacetic acid was used as the S-containing chelate, and the disubstituted potassium salt of 1-hydroxy ethylidene-1,1-diphosphonic acid was used as the P-containing chelate. Further attention is given to study the effect that exogenous application of phytohormones and plant growth regulators has on the efficiency of mercury absorption and physiological status of plants, which performed well in combination with a P-containing chelate.
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Affiliation(s)
- Anna Makarova
- D. Mendeleev University of Chemical Technology of Russia, Miusskaya Sq., 9, 125047 Moscow, Russia
| | - Elena Nikulina
- Institute of Chemical Reagents and Special Purity Chemicals of the National Research Center Kurchatov Institute (IREPC), St. Bogorodsky Val, 3, 107076 Moscow, Russia
| | - Nina Tsirulnikova
- Institute of Chemical Reagents and Special Purity Chemicals of the National Research Center Kurchatov Institute (IREPC), St. Bogorodsky Val, 3, 107076 Moscow, Russia
| | - Tatyana Avdeenkova
- D. Mendeleev University of Chemical Technology of Russia, Miusskaya Sq., 9, 125047 Moscow, Russia
| | - Ksenia V Pishchaeva
- D. Mendeleev University of Chemical Technology of Russia, Miusskaya Sq., 9, 125047 Moscow, Russia
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Wang Q, Li Z, Feng X, Wang A, Li X, Wang D, Fan L. Mercury accumulation in vegetable Houttuynia cordata Thunb. from two different geological areas in southwest China and implications for human consumption. Sci Rep 2021; 11:52. [PMID: 33420215 PMCID: PMC7794452 DOI: 10.1038/s41598-020-80183-7] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2020] [Accepted: 12/11/2020] [Indexed: 11/09/2022] Open
Abstract
Houttuynia cordata Thunb. (HCT) is a common vegetable native to southwest China, and grown for consumption. The results suggested that THg contents in all parts and MeHg in underground parts of HCT in Hg mining areas were much higher than those in non-Hg mining areas. The highest THg and MeHg content of HCT were found in the roots, followed by the other tissues in the sequence: roots > leaves > rhizomes > aboveground stems (THg), and roots > rhizomes > aboveground stems > leaves (MeHg). The average THg bioaccumulation factor (BCF) of HCT root in the Hg mining area and in non-Hg mining areas could reach 1.02 ± 0.71 and 0.99 ± 0.71 respectively, indicating that HCT is a Hg accumulator. And the THg and MeHg contents in all tissues of HCT, including the leaves, were significantly correlated with THg and MeHg content in the soil. Additionally, preferred dietary habits of HCT consumption could directly affect the Hg exposure risk. Consuming the aboveground parts (CAP) of HCT potentially poses a high THg exposure risk and consuming the underground parts (CUP) may lead to a relatively high MeHg exposure risk. Only consuming the rhizomes (OCR) of the underground parts could significantly reduce the exposure risk of THg and to some extent of MeHg. In summary, HCT should not be cultivated near the Hg contaminated sites, such as Hg tailings, as it is associated with a greater risk of Hg exposure and high root Hg levels, and the roots should be removed before consumption to reduce the Hg risk.
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Affiliation(s)
- Qingfeng Wang
- Department of Resources and Environment, Zunyi Normal College, Zunyi, 563006, People's Republic of China. .,State Key Laboratory of Environmental Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences, Guiyang, 550081, People's Republic of China.
| | - Zhonggen Li
- Department of Resources and Environment, Zunyi Normal College, Zunyi, 563006, People's Republic of China.,State Key Laboratory of Environmental Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences, Guiyang, 550081, People's Republic of China
| | - Xinbin Feng
- State Key Laboratory of Environmental Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences, Guiyang, 550081, People's Republic of China
| | - Ao Wang
- Zunyi Product Quality Inspection and Testing Institution, Zunyi, 563006, People's Republic of China
| | - Xinyu Li
- State Key Laboratory of Environmental Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences, Guiyang, 550081, People's Republic of China.,University of Chinese Academy of Sciences, Beijing, 100049, People's Republic of China
| | - Dan Wang
- Department of Resources and Environment, Zunyi Normal College, Zunyi, 563006, People's Republic of China
| | - Leilei Fan
- Department of Resources and Environment, Zunyi Normal College, Zunyi, 563006, People's Republic of China
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48
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Boros-Lajszner E, Wyszkowska J, Kucharski J. Phytoremediation of soil contaminated with nickel, cadmium and cobalt. INTERNATIONAL JOURNAL OF PHYTOREMEDIATION 2021; 23:252-262. [PMID: 32854521 DOI: 10.1080/15226514.2020.1807907] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/04/2023]
Abstract
This pot experiment analyzed the use of Brassica napus, Elymus elongatus and Zea mays in the removal of Cd2+ Co2+ and Ni2+ from the soil. The utility of the plants under study for phytoremediation was analyzed based on the biomass of the aboveground parts and roots and the accumulation of metals, bioaccumulation, bioconcentration and translocation capability in the above-ground parts and roots. The effect of heavy metals on the soil enzyme activity and soil physicochemical properties was also determined. Among the species under study, only E. elongatus was found to be suitable for Cd2+ phytoextraction, whereas E. elongatus and Z. mays proved to be suitable for phytostabilisation of Cd2+ and Co2+ because the criterion of the accumulation of metals in the roots at a sufficient level was fulfilled. The index of bioaccumulation in roots was greater than one. Both plant species met the second condition which determined the utility for phytostabilisation, as since the transport of Cd2+ Co2+ and Ni2+ from the roots to the above-ground parts was limited.
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Affiliation(s)
- Edyta Boros-Lajszner
- Department of Microbiology, University of Warmia and Mazury in Olsztyn, Olsztyn, Poland
| | - Jadwiga Wyszkowska
- Department of Microbiology, University of Warmia and Mazury in Olsztyn, Olsztyn, Poland
| | - Jan Kucharski
- Department of Microbiology, University of Warmia and Mazury in Olsztyn, Olsztyn, Poland
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Girondi Delaqua GC, Marvila MT, Souza D, Sanchez Rodriguez RJ, Colorado HA, Fontes Vieira CM. Evaluation of the application of macrophyte biomass Salvinia auriculata Aublet in red ceramics. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2020; 275:111253. [PMID: 32858268 DOI: 10.1016/j.jenvman.2020.111253] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/11/2020] [Revised: 07/31/2020] [Accepted: 08/16/2020] [Indexed: 06/11/2023]
Abstract
In this work, the study of the biomass application of a microphyte plant Slavinia auriculata Aublet in red ceramic was carried out. The waste comes from the phytoremediation process, used in sewage treatment plants. Characterization tests were carried out by chemical, mineralogical, dilatometry, thermal and mass spectrometry techniques, where it was possible to prove that biomass is compatible in its composition for application in ceramic materials and also has great potential to act as a source of energy. The production of specimens was carried out using an industrial clay mass and incorporating 0-10% of biomass in samples produced by pressing and burned at temperatures between 750 and 1050 °C. Properties of plasticity, firing shrinkage, apparent drying and firing density, water absorption, compressive strength and tensile strength in flexion were evaluated, where the feasibility of using up to 2.5% biomass in ceramics firing in 1050 °C s was proven. Although the results of water absorption at the firing temperature of 1050 °C have increased from 18.3% to 19.4% with the use of 2.5% of the residue, the results of tensile strength in flexion have reduced from 4.80 to 3.75 MPa and the results of compressive strength have reduced from 27.6 to 22 MPa, the values obtained meet international recommendations and are in accordance with the recommendations of the bibliography. Finally, an economic analysis of the application of biomass in ceramic materials was carried out, where it was observed that it was possible to save up to 5.04% with the use of the biomass under study, providing an annual savings of $ 2668.8 for the ceramic industry.
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Affiliation(s)
- Geovana Carla Girondi Delaqua
- State University of the Northen Rio de Janeiro - UENF, Advanced Materials Laboratory - LAMAV, Av. Alberto Lamego, 2000, 28013-602, Campos Dos Goytacazes, RJ, Brazil
| | - Markssuel Teixeira Marvila
- State University of the Northen Rio de Janeiro - UENF, Advanced Materials Laboratory - LAMAV, Av. Alberto Lamego, 2000, 28013-602, Campos Dos Goytacazes, RJ, Brazil.
| | - Djalma Souza
- State University of the Northen Rio de Janeiro - UENF, Advanced Materials Laboratory - LAMAV, Av. Alberto Lamego, 2000, 28013-602, Campos Dos Goytacazes, RJ, Brazil
| | - Ruben Jesus Sanchez Rodriguez
- State University of the Northen Rio de Janeiro - UENF, Advanced Materials Laboratory - LAMAV, Av. Alberto Lamego, 2000, 28013-602, Campos Dos Goytacazes, RJ, Brazil
| | - Henry Alonso Colorado
- CCComposites Laboratory, University of Antioquia, Cl. 67 ##53-108, Medellín, Antioquia, Colombia
| | - Carlos Maurício Fontes Vieira
- State University of the Northen Rio de Janeiro - UENF, Advanced Materials Laboratory - LAMAV, Av. Alberto Lamego, 2000, 28013-602, Campos Dos Goytacazes, RJ, Brazil
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