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Wang G, Wang X, Liu Y, Liu S, Xing Z, Guo P, Li C, Wang H. Novel Insights into Uptake, Translocation, and Transformation Mechanisms of 2,2',4,4'-Tetra Brominated Diphenyl Ether (BDE-47) in Wheat ( Triticum aestivum L.): Implication by Compound-Specific Stable Isotope and Transcriptome Analysis. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2023; 57:15266-15276. [PMID: 37773091 DOI: 10.1021/acs.est.3c04898] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/30/2023]
Abstract
The uptake, translocation, and transformation of 2,2',4,4'-tetra brominated diphenyl ether (BDE-47) in wheat (Triticum aestivum L.) were comprehensively investigated by hydroponic experiments using compound-specific stable isotope analysis (CSIA) and transcriptome analysis. The results indicated that BDE-47 was quickly adsorbed on epidermis of wheat roots and then absorbed in roots via water and anion channels as well as an active process dependent on energy. A small fraction of BDE-47 in roots was subjected to translocation acropetally, and an increase of δ13C values in shoots than roots implied that BDE-47 in roots had to cross at least one lipid bilayer to enter the vascular bundle via transporters. In addition, accompanied by the decreasing concentrations, δ13C values of BDE-47 showed the increasing trend with time in shoots, indicating occurrence of BDE-47 transformation. OH-PBDEs were detected as transformation products, and the hydroxyl group preferentially substituted at the ortho-positions of BDE-47. Based on transcriptome analysis, genes encoding polybrominated diphenyl ether (PBDE)-metabolizing enzymes, including cytochrome P450 enzymes, nitrate reductases, and glutathione S-transferases, were significantly upregulated after exposure to BDE-47 in shoots, further evidencing BDE-47 transformation. This study first reported the stable carbon isotope fractionation of PBDEs during translocation and transformation in plants, and application of CSIA and transcriptome analysis allowed systematically characterize the environmental behaviors of pollutants in plants.
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Affiliation(s)
- Guoguang Wang
- College of Environmental Science and Engineering, Dalian Maritime University, No.1 Linghai Road, Dalian 116026, P. R. China
| | - Xu Wang
- College of Environmental Science and Engineering, Dalian Maritime University, No.1 Linghai Road, Dalian 116026, P. R. China
| | - Yu Liu
- College of Environmental Science and Engineering, Dalian Maritime University, No.1 Linghai Road, Dalian 116026, P. R. China
| | - Shuaihao Liu
- College of Environmental Science and Engineering, Dalian Maritime University, No.1 Linghai Road, Dalian 116026, P. R. China
| | - Ziao Xing
- College of Environmental Science and Engineering, Dalian Maritime University, No.1 Linghai Road, Dalian 116026, P. R. China
| | - Pengxu Guo
- College of Environmental Science and Engineering, Dalian Maritime University, No.1 Linghai Road, Dalian 116026, P. R. China
| | - Chuanyuan Li
- College of Environmental Science and Engineering, Dalian Maritime University, No.1 Linghai Road, Dalian 116026, P. R. China
| | - Haixia Wang
- Navigation College, Dalian Maritime University, No.1 Linghai Road, Dalian 116026, P. R. China
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Fei L, Bilal M, Qamar SA, Imran HM, Riasat A, Jahangeer M, Ghafoor M, Ali N, Iqbal HMN. Nano-remediation technologies for the sustainable mitigation of persistent organic pollutants. ENVIRONMENTAL RESEARCH 2022; 211:113060. [PMID: 35283076 DOI: 10.1016/j.envres.2022.113060] [Citation(s) in RCA: 21] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/31/2021] [Revised: 02/21/2022] [Accepted: 02/28/2022] [Indexed: 02/05/2023]
Abstract
The absence of novel and efficient methods for the elimination of persistent organic pollutants (POPs) from the environment is a serious concern in the society. The pollutants release into the atmosphere by means of industrialization and urbanization is a massive global hazard. Although, the eco-toxicity associated with nanotechnology is still being debated, nano-remediation is a potentially developing tool for dealing with contamination of the environment, particularly POPs. Nano-remediation is a novel strategy to the safe and long-term removal of POPs. This detailed review article presents an important perspective on latest innovations and future views of nano-remediation methods used for environmental decontamination, like nano-photocatalysis and nanosensing. Different kinds of nanomaterials including nanoscale zero-valent iron (nZVI), carbon nanotubes (CNTs), magnetic and metallic nanoparticles, silica (SiO2) nanoparticles, graphene oxide, covalent organic frameworks (COFs), and metal organic frameworks (MOFs) have been summarized for the mitigation of POPs. Furthermore, the long-term viability of nano-remediation strategies for dealing with legacy contamination was considered, with a particular emphasis on environmental and health implications. The assessment goes on to discuss the environmental consequences of nanotechnology and offers consensual recommendations on how to employ nanotechnology for a greater present and a more prosperous future.
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Affiliation(s)
- Liu Fei
- National & Local Joint Engineering Research Center for Mineral Salt Deep Utilization, Huaiyin Institute of Technology, Huaian, 223003, PR China.
| | - Muhammad Bilal
- School of Life Science and Food Engineering, Huaiyin Institute of Technology, Huaian, 223003, China.
| | - Sarmad Ahmad Qamar
- State Key Laboratory of Bioreactor Engineering and School of Biotechnology, East China University of Science and Technology, Shanghai, 200237, China
| | | | - Areej Riasat
- Department of Biochemistry, Government College University, Faisalabad, Pakistan
| | - Muhammad Jahangeer
- Department of Biochemistry, Government College University, Faisalabad, Pakistan
| | - Misbah Ghafoor
- Department of Chemistry, University of Agriculture, Faisalabad, Pakistan
| | - Nisar Ali
- National & Local Joint Engineering Research Center for Mineral Salt Deep Utilization, Huaiyin Institute of Technology, Huaian, 223003, PR China
| | - Hafiz M N Iqbal
- Tecnologico de Monterrey, School of Engineering and Sciences, Monterrey, 64849, Mexico.
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Girones L, Oliva AL, Negrin VL, Marcovecchio JE, Arias AH. Persistent organic pollutants (POPs) in coastal wetlands: A review of their occurrences, toxic effects, and biogeochemical cycling. MARINE POLLUTION BULLETIN 2021; 172:112864. [PMID: 34482253 DOI: 10.1016/j.marpolbul.2021.112864] [Citation(s) in RCA: 26] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/30/2021] [Revised: 08/10/2021] [Accepted: 08/12/2021] [Indexed: 06/13/2023]
Abstract
Coastal wetlands, such as mangroves, seagrass beds, and salt marshes, are highly threatened by increasing anthropic pressures, including chemical pollution. Persistent organic pollutants (POPs) have attracted attention in these particularly vulnerable ecosystems, due to their bioaccumulative, pervasive, and ecotoxic behavior. This article reviews and summarizes available information regarding current levels, biogeochemical cycling, and effects of POPs on coastal wetlands. Sediment POP levels were compared with international quality guidelines, revealing many areas where compounds could cause damage to biota. Despite this, toxicological studies on some coastal wetland plants and microorganisms showed a high tolerance to those levels. These taxonomic groups are likely to play a key role in the cycling of the POPs, with an active role in their accumulation, immobilization, and degradation. Toxicity and biogeochemical processes varied markedly along three main axes; namely species, environmental conditions, and type of pollutant. While more focused research on newly and unintentionally produced POPs is needed, mainly in salt marshes and seagrass beds, with the information available so far, the environmental behavior, spatial distribution, and toxicity level of the studied POPs showed similar patterns across the three studied ecosystems.
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Affiliation(s)
- Lautaro Girones
- Instituto Argentino de Oceanografía (IADO - CONICET/UNS), Camino La Carrindanga km 7.5, 8000 Bahía Blanca, Argentina.
| | - Ana L Oliva
- Instituto Argentino de Oceanografía (IADO - CONICET/UNS), Camino La Carrindanga km 7.5, 8000 Bahía Blanca, Argentina
| | - Vanesa L Negrin
- Instituto Argentino de Oceanografía (IADO - CONICET/UNS), Camino La Carrindanga km 7.5, 8000 Bahía Blanca, Argentina; Departamento de Biología, Bioquímica y Farmacia, Universidad Nacional del Sur, Bahía Blanca, Argentina
| | - Jorge E Marcovecchio
- Instituto Argentino de Oceanografía (IADO - CONICET/UNS), Camino La Carrindanga km 7.5, 8000 Bahía Blanca, Argentina; Universidad Tecnológica Nacional (UTN)-FRBB, Bahía Blanca, Argentina; Universidad FASTA, Mar del Plata, Argentina
| | - Andrés H Arias
- Instituto Argentino de Oceanografía (IADO - CONICET/UNS), Camino La Carrindanga km 7.5, 8000 Bahía Blanca, Argentina; Departamento de Química, Universidad Nacional del Sur, Bahía Blanca, Argentina
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Zhang Q, Yao Y, Wang Y, Zhang Q, Cheng Z, Li Y, Yang X, Wang L, Sun H. Plant accumulation and transformation of brominated and organophosphate flame retardants: A review. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2021; 288:117742. [PMID: 34329057 DOI: 10.1016/j.envpol.2021.117742] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/26/2021] [Revised: 06/16/2021] [Accepted: 07/04/2021] [Indexed: 06/13/2023]
Abstract
Plants can take up and transform brominated flame retardants (BFRs) and organophosphate flame retardants (OPFRs) from soil, water and the atmosphere, which is of considerable significance to the geochemical cycle of BFRs and OPFRs and their human exposure. However, the current understanding of the plant uptake, translocation, accumulation, and metabolism of BFRs and OPFRs in the environment remains very limited. In this review, recent studies on the accumulation and transformation of BFRs and OPFRs in plants are summarized, the main factors affecting plant accumulation from the aspects of root uptake, foliar uptake, and plant translocation are presented, and the metabolites and metabolic pathways of BFRs and OPFRs in plants are analyzed. It was found that BFRs and OPFRs can be taken up by plants through partitioning to root lipids, as well as through gaseous and particle-bound deposition to the leaves. Their microscopic distribution in roots and leaves is important for understanding their accumulation behaviors. BFRs and OPFRs can be translocated in the xylem and phloem, but the specific transport pathways and mechanisms need to be further studied. BFRs and OPFRs can undergo phase I and phase II metabolism in plants. The identification, quantification and environmental fate of their metabolites will affect the assessment of their ecological and human exposure risks. Based on the issues mentioned above, some key directions worth studying in the future are proposed.
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Affiliation(s)
- Qing Zhang
- MOE Key Laboratory of Pollution Processes and Environmental Criteria, College of Environmental Science and Engineering, Nankai University, Tianjin, 300350, China; School of Environment and Energy, Peking University Shenzhen Graduate School, Shenzhen, 518055, China
| | - Yiming Yao
- MOE Key Laboratory of Pollution Processes and Environmental Criteria, College of Environmental Science and Engineering, Nankai University, Tianjin, 300350, China.
| | - Yu Wang
- MOE Key Laboratory of Pollution Processes and Environmental Criteria, College of Environmental Science and Engineering, Nankai University, Tianjin, 300350, China
| | - Qiuyue Zhang
- MOE Key Laboratory of Pollution Processes and Environmental Criteria, College of Environmental Science and Engineering, Nankai University, Tianjin, 300350, China
| | - Zhipeng Cheng
- MOE Key Laboratory of Pollution Processes and Environmental Criteria, College of Environmental Science and Engineering, Nankai University, Tianjin, 300350, China
| | - Yongcheng Li
- MOE Key Laboratory of Pollution Processes and Environmental Criteria, College of Environmental Science and Engineering, Nankai University, Tianjin, 300350, China
| | - Xiaomeng Yang
- MOE Key Laboratory of Pollution Processes and Environmental Criteria, College of Environmental Science and Engineering, Nankai University, Tianjin, 300350, China
| | - Lei Wang
- MOE Key Laboratory of Pollution Processes and Environmental Criteria, College of Environmental Science and Engineering, Nankai University, Tianjin, 300350, China
| | - Hongwen Sun
- MOE Key Laboratory of Pollution Processes and Environmental Criteria, College of Environmental Science and Engineering, Nankai University, Tianjin, 300350, China
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Farzana S, Cheung SG, Kong RYC, Wong YS, Tam NFY. Enhanced remediation of BDE-209 in contaminated mangrove sediment by planting and aquaculture effluent. THE SCIENCE OF THE TOTAL ENVIRONMENT 2021; 754:142094. [PMID: 32911149 DOI: 10.1016/j.scitotenv.2020.142094] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/02/2020] [Revised: 08/25/2020] [Accepted: 08/29/2020] [Indexed: 06/11/2023]
Abstract
Toxic and persistent flame retardant (BDE-209) and aquaculture effluent (AE) are ubiquitous in coastal environments, but how their co-existence influences their fate is not yet investigated. This study investigated AE effects on remediation and uptake of BDE-209 by Kandelia obovata (Ko) and Avicennia marina (Am), true and dominant mangrove species. After 12-months, a significant removal of BDE-209 was achieved in planted mangrove sediment and the removal was significantly enhanced by AE addition, possibly due to the enhancement of nitrogen (N) and phosphorous (P) content in sediment. Residual percentages of parent BDE-209 in Ko and Am planted sediments without AE were 61.4% and 70.9%, respectively, but decreased to 46.9% and 48.0% with AE addition after 12-months. A similar trend was found in unplanted sediment, with 86.5% and 65.3% of BDE-209 retained in sediments without and with AE addition, respectively. The results demonstrated that AE addition not only increased the debromination of BDE-209 in all treated sediments with the production of debrominated congeners (de-PBDEs) like di- to nona-BDEs in unplanted and planted sediments, but also enhanced the take up of BDE-209 in Ko root, and de-PBDEs in both Ko and Am, thus enhancing the phytoremediation of BDE-209 in contaminated sediments.
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Affiliation(s)
- Shazia Farzana
- Department of Chemistry, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong, China; State Key Laboratory in Marine Pollution, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong, China
| | - Siu Gin Cheung
- Department of Chemistry, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong, China; State Key Laboratory in Marine Pollution, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong, China
| | - R Y C Kong
- Department of Chemistry, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong, China; State Key Laboratory in Marine Pollution, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong, China
| | - Yuk Shan Wong
- School of Science and Technology, The Open University of Hong Kong, Homantin, Kowloon, Hong Kong, China
| | - Nora Fung Yee Tam
- Department of Chemistry, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong, China; State Key Laboratory in Marine Pollution, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong, China; School of Science and Technology, The Open University of Hong Kong, Homantin, Kowloon, Hong Kong, China.
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