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Zhang W, Liang Y. Impact of four surfactants on the uptake of per- and polyfluoroalkyl substances (PFAS) by red fescue grass. INTERNATIONAL JOURNAL OF PHYTOREMEDIATION 2024:1-10. [PMID: 39180432 DOI: 10.1080/15226514.2024.2394903] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/26/2024]
Abstract
Per- and polyfluoroalkyl substances (PFAS) pose great risks to human health and the ecosystem, necessitating effective remediation strategies such as phytoremediation. Surfactants, due to their ability to increase the bioavailability of hydrophobic contaminants, are considered as potential agents to improve phytoremediation for PFAS. In this research, we explored the impact of four surfactants (sodium dodecyl sulfate (SDS), rhamnolipid, Triton X-100, and Glucopone 600 CS UP) on plant growth and the uptake of PFAS by red fescue over 110 days. The results showed that while surfactants at lower concentrations did not negatively affect plant growth, the highest dose (2,500 mg/kg) significantly reduced the dry weight of plant shoots. Although none of the four surfactants led to an increased overall removal efficiency of ∑PFAS by red fescue over 110 days, SDS did enhance the uptake of PFAS compounds with long carbon chain lengths. With SDS addition at 2,500 mg/kg, the average fold increases of long chain PFAS removal were 1.99 for perfluorooctanoic acid (PFOA), 2.44 for perfluorononanoic acid (PFNA), 2.11 for perfluorodecanoic acid (PFDA), 1.52 for perfluoroundecanoic acid (PFUnA), 1.88 for perfluorohexanesulphonic acid (PFHxS), and 2.97 for perfluorooctanesulfonic acid (PFOS). The research indicated that using surfactants, such as SDS at appropriate doses could improve phytoremediation effectiveness in mitigating long-chain PFAS, which is a known challenge in soil remediation.
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Affiliation(s)
- Weilan Zhang
- Department of Environmental and Sustainable Engineering, University at Albany, State University of New York, Albany, NY, USA
| | - Yanna Liang
- Department of Environmental and Sustainable Engineering, University at Albany, State University of New York, Albany, NY, USA
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Drenning P, Volchko Y, Enell A, Berggren Kleja D, Larsson M, Norrman J. A method for evaluating the effects of gentle remediation options (GRO) on soil health: Demonstration at a DDX-contaminated tree nursery in Sweden. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 948:174869. [PMID: 39038670 DOI: 10.1016/j.scitotenv.2024.174869] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/12/2024] [Revised: 07/16/2024] [Accepted: 07/16/2024] [Indexed: 07/24/2024]
Abstract
Healthy soils provide valuable ecosystem services (ES), but soil contamination can inhibit essential soil functions (SF) and pose risks to human health and the environment. A key advantage of using gentle remediation options (GRO) is the potential for multifunctionality: to both manage risks and improve soil functionality. In this study, an accessible, scientific method for soil health assessment directed towards practitioners and decision-makers in contaminated land management was developed and demonstrated for a field experiment at a DDX-contaminated tree nursery site in Sweden to evaluate the relative effects of GRO on soil health (i.e., the 'current capacity' to provide ES). For the set of relevant soil quality indicators (SQI) selected using a simplified logical sieve, GRO treatment was observed to have highly significant effects on many SQI according to statistical analysis due to the strong influence of biochar amendment on the sandy soil and positive effects of nitrogen-fixing leguminous plants. The SQI were grouped within five SF and the relative effects on soil health were evaluated compared to a reference state (experimental control) by calculating quantitative treated-SF indices. Multiple GRO treatments are shown to have statistically significant positive effects on many SF, including pollutant attenuation and degradation, water cycling and storage, nutrient cycling and provisioning, and soil structure and maintenance. The SF were in turn linked to soil-based ES to calculate treated-ES indices and an overall soil health index (SHI), which can provide simplified yet valuable information to decision-makers regarding the effectiveness of GRO. The experimental GRO treatment of the legume mix with biochar amendment and grass mix with biochar amendment are shown to result in statistically significant improvements to soil health, with overall SHI values of 141 % and 128 %, respectively, compared to the reference state of the grass mix without biochar (set to 100 %).
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Affiliation(s)
- Paul Drenning
- Department of Architecture and Civil Engineering, Chalmers University of Technology, SE 412-96 Gothenburg, Sweden.
| | - Yevheniya Volchko
- Department of Architecture and Civil Engineering, Chalmers University of Technology, SE 412-96 Gothenburg, Sweden
| | - Anja Enell
- Swedish Geotechnical Institute (SGI), SE-581 93 Linköping, Sweden
| | - Dan Berggren Kleja
- Swedish Geotechnical Institute (SGI), SE-581 93 Linköping, Sweden; Department of Soil and Environment, Swedish University of Agricultural Sciences (SLU), Box 7014, SE-750 07 Uppsala, Sweden
| | - Maria Larsson
- Man-Technology-Environment (MTM) Research Centre, School of Science and Technology, Örebro University, SE-701 82 Örebro, Sweden
| | - Jenny Norrman
- Department of Architecture and Civil Engineering, Chalmers University of Technology, SE 412-96 Gothenburg, Sweden
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Rocha CS, Rocha DC, Kochi LY, Carneiro DNM, Dos Reis MV, Gomes MP. Phytoremediation by ornamental plants: a beautiful and ecological alternative. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2022; 29:3336-3354. [PMID: 34766223 DOI: 10.1007/s11356-021-17307-7] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/17/2021] [Accepted: 10/27/2021] [Indexed: 06/13/2023]
Abstract
Phytoremediation is an eco-friendly and economical technology in which plants are used for the removal of contaminants presents in the urban and rural environment. One of the challenges of the technique is the proper destination of the biomass of plants. In this context, the use of ornamental plants in areas under contamination treatment improves landscape, serving as a tourist option and source of income with high added value. In addition to their high stress tolerance, rapid growth, high biomass production, and good root development, ornamental species are not intended for animal and human food consumption, avoiding the introduction of contaminants into the food web in addition to improving the environments with aesthetic value. Furthermore, ornamental plants provide multiple ecosystem services, and promote human well-being, while contributing to the conservation of biodiversity. In this review, we summarized the main uses of ornamental plants in phytoremediation of contaminated soil, air, and water. We discuss the potential use of ornamental plants in constructed buffer strips aiming to mitigate the contamination of agricultural lands occurring in the vicinity of sources of contaminants. Moreover, we underlie the ecological and health benefits of the use of ornamental plants in urban and rural landscape projects. This study is expected to draw attention to a promising decontamination technology combined with the beautification of urban and rural areas as well as a possible alternative source of income and diversification in horticultural production.
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Affiliation(s)
- Camila Silva Rocha
- Laboratório de Fisiologia de Plantas Sob Estresse, Departamento de Botânica, Setor de Ciências Biológicas, Universidade Federal Do Paraná, Avenida Coronel Francisco H. Dos Santos, 100, Centro Politécnico Jardim das Américas, C.P. 19031, Curitiba, , Paraná, 81531-980, Brazil
| | - Daiane Cristina Rocha
- Laboratório de Fisiologia de Plantas Sob Estresse, Departamento de Botânica, Setor de Ciências Biológicas, Universidade Federal Do Paraná, Avenida Coronel Francisco H. Dos Santos, 100, Centro Politécnico Jardim das Américas, C.P. 19031, Curitiba, , Paraná, 81531-980, Brazil
| | - Leticia Yoshie Kochi
- Laboratório de Fisiologia de Plantas Sob Estresse, Departamento de Botânica, Setor de Ciências Biológicas, Universidade Federal Do Paraná, Avenida Coronel Francisco H. Dos Santos, 100, Centro Politécnico Jardim das Américas, C.P. 19031, Curitiba, , Paraná, 81531-980, Brazil
| | - Daniella Nogueira Moraes Carneiro
- Laboratório de Micropropagação de Plantas, Departamento de Fitotecnia E Fitossanitaríssimo, Setor de Ciências Agrarias, Universidade Federal Do Paraná, Rua Dos Funcionário, 1540, Juvevê, Curitiba, Paraná, 80035-050, Brazil
| | - Michele Valquíria Dos Reis
- Horto Botânico, Departamento de Agricultura, Universidade Federal de Lavras, Lavras, Minas Gerais, 37200-900, Brazil
| | - Marcelo Pedrosa Gomes
- Laboratório de Fisiologia de Plantas Sob Estresse, Departamento de Botânica, Setor de Ciências Biológicas, Universidade Federal Do Paraná, Avenida Coronel Francisco H. Dos Santos, 100, Centro Politécnico Jardim das Américas, C.P. 19031, Curitiba, , Paraná, 81531-980, Brazil.
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Hu B, Hu S, Vymazal J, Chen Z. Arbuscular mycorrhizal symbiosis in constructed wetlands with different substrates: Effects on the phytoremediation of ibuprofen and diclofenac. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2021; 296:113217. [PMID: 34246029 DOI: 10.1016/j.jenvman.2021.113217] [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: 05/04/2021] [Revised: 06/06/2021] [Accepted: 07/01/2021] [Indexed: 06/13/2023]
Abstract
This study investigated the role of arbuscular mycorrhizal fungal (AMF) for the removal of ibuprofen (IBU) and diclofenac (DCF) in constructed wetlands (CWs) with four different substrates. Results showed that AMF colonization in adsorptive substrate (perlite, vermiculite, and biochar) systems was higher than that in sand systems. AMF enhanced the tolerance of Glyceria maxima to the stress of IBU and DCF by promoting the activities of antioxidant enzymes (peroxidase and superoxide dismutase) and the contents of soluble protein, while decreasing the contents of malondialdehyde and O2•-. The removal efficiencies of IBU and DCF were increased by 15%-18% and 25%-38% in adsorptive substrate systems compare to sand systems. Adsorptive substrates enhanced the accumulation of IBU and DCF in the rhizosphere and promoted the uptake of IBU and DCF by plant roots. AMF promoted the removal of IBU and DCF in sand systems but limited their reduction in adsorptive substrate systems. In all scenarios, the presence of AMF decreased the contents of CECs metabolites (2-OH IBU, CA IBU, and 4'-OH IBU) in the effluents and promoted the uptake of IBU by plant roots. Therefore, these results indicated that the addition of adsorptive substrates could enhance the removal of IBU and DCF in CWs. The role of AMF on the removal of IBU and DCF was influenced by CW substrate. These may provide useful information for the application of AMF in CWs to remove contaminants of emerging concern.
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Affiliation(s)
- Bo Hu
- Department of Applied Ecology, Faculty of Environmental Sciences, Czech University of Life Sciences Prague, Kamýcká 129, Praha-Suchdol, 16500, Czech Republic
| | - Shanshan Hu
- Department of Applied Ecology, Faculty of Environmental Sciences, Czech University of Life Sciences Prague, Kamýcká 129, Praha-Suchdol, 16500, Czech Republic
| | - Jan Vymazal
- Department of Applied Ecology, Faculty of Environmental Sciences, Czech University of Life Sciences Prague, Kamýcká 129, Praha-Suchdol, 16500, Czech Republic
| | - Zhongbing Chen
- Department of Applied Ecology, Faculty of Environmental Sciences, Czech University of Life Sciences Prague, Kamýcká 129, Praha-Suchdol, 16500, Czech Republic.
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Jiang H, Tian Y, Chen J, Zhang Z, Xu H. Enhanced uptake of drip-applied flonicamid by arbuscular mycorrhizal fungi and improved control of cotton aphid. PEST MANAGEMENT SCIENCE 2020; 76:4222-4230. [PMID: 32594648 DOI: 10.1002/ps.5979] [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: 03/06/2020] [Revised: 06/22/2020] [Accepted: 06/28/2020] [Indexed: 06/11/2023]
Abstract
BACKGROUND Drip application of insecticides has been used for controlling crop pests, but the application doses are usually higher than those used for foliar spray. Arbuscular mycorrhizal fungi (AMF) have been reported to improve root absorption of nutrients from soil, which may also enhance the uptake of drip-applied insecticides, reducing application doses. In this study, greenhouse and field experiments were carried out to determine if AMF could colonize cotton roots, if the colonization could enhance the absorption of drip-applied flonicamid, and if the enhanced uptake could reduce flonicamid application dose, while maintaining control efficacy against cotton aphid. RESULTS The applied AMF effectively colonized cotton roots and significantly promoted root growth. Fresh weights of cotton roots inoculated with multiple AMF were 28% greater than those of uninoculated plants. Multiple AMF colonization significantly increased flonicamid concentrations in leaves, which were 44.5-139.7% higher than for non AMF-colonized roots, corresponding to 3.7-31.8% increases in corrected mortalities of cotton aphid compared with uninoculated plants. AMF colonization reduced the application rate of flonicamid and the residue level of flonicamid in soil. CONCLUSION Drip application of flonicamid to cotton roots inoculated with AMF represents a new approach to insecticide application. AMF colonization increased flonicamid uptake, improved aphid control efficacy and reduced flonicamid application rates. © 2020 Society of Chemical Industry.
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Affiliation(s)
- Hui Jiang
- State Key Laboratory for Conservation and Utilisation of Subtropical Agro-Bioresources, South China Agricultural University, Guangzhou, China
- Key Laboratory of Natural Pesticide and Chemical Biology, South China Agricultural University, Guangzhou, China
| | - Yongqing Tian
- State Key Laboratory for Conservation and Utilisation of Subtropical Agro-Bioresources, South China Agricultural University, Guangzhou, China
- Key Laboratory of Natural Pesticide and Chemical Biology, South China Agricultural University, Guangzhou, China
| | - Jianjun Chen
- Department of Environmental Horticulture and Mid-Florida Research and Education Center, Institute of Food and Agricultural Sciences, University of Florida, Apopka, FL, USA
| | - Zhixiang Zhang
- State Key Laboratory for Conservation and Utilisation of Subtropical Agro-Bioresources, South China Agricultural University, Guangzhou, China
- Key Laboratory of Natural Pesticide and Chemical Biology, South China Agricultural University, Guangzhou, China
| | - Hanhong Xu
- State Key Laboratory for Conservation and Utilisation of Subtropical Agro-Bioresources, South China Agricultural University, Guangzhou, China
- Key Laboratory of Natural Pesticide and Chemical Biology, South China Agricultural University, Guangzhou, China
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Malusá E, Tartanus M, Danelski W, Miszczak A, Szustakowska E, Kicińska J, Furmanczyk EM. Monitoring of DDT in Agricultural Soils under Organic Farming in Poland and the Risk of Crop Contamination. ENVIRONMENTAL MANAGEMENT 2020; 66:916-929. [PMID: 32815049 PMCID: PMC7591450 DOI: 10.1007/s00267-020-01347-9] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/01/2020] [Accepted: 07/30/2020] [Indexed: 05/06/2023]
Abstract
The analysis of 142 agricultural soil samples collected in organic farms across Poland with the intent to evaluate the level of DDT contamination resulted in more than 80% of the soils containing DDT. The ΣDDT (sum of all metabolites and isomers) concentration ranged between 0.005 and 0.383 mg/kg ΣDDT, with an average value of 0.064 mg/kg ΣDDT. However, the majority of plant samples collected from the crops growing on the sampled soils did not contain detectable DDT residues. The high DDT pollution levels detected in samples from four voivodeships (regions) among those monitored have been hypothesised to be linked to horticultural productions occurring to the sampled fields and typical of those regions, particularly in big-sized farms, during the period of DDT application, as well as the number of pesticides landfills present in these voivodeships. The elaboration of the o,p'-DDT/p,p'-DDT and DDT/(DDE + DDD) ratios to appraise the source or the period of contamination suggested that the contamination originated from past use of DDT rather than from impurities of more recent applications of other formulated substances. Such outcome thus suggests that the risk of contamination of organic products is likely derived from general environmental pollution levels rather than from the use of unauthorised substances in organic farming productions. Data from a trial with artificial contamination of soils indicated that using the DDT/(DDE + DDD) ratio in the presence of a low level of contamination could be less reliable than in highly contaminated soils.
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Affiliation(s)
- Eligio Malusá
- Research Institute of Horticulture, Skierniewice, Poland.
| | | | | | - Artur Miszczak
- Research Institute of Horticulture, Skierniewice, Poland
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Olisah C, Okoh OO, Okoh AI. Occurrence of organochlorine pesticide residues in biological and environmental matrices in Africa: A two-decade review. Heliyon 2020; 6:e03518. [PMID: 32154427 PMCID: PMC7056722 DOI: 10.1016/j.heliyon.2020.e03518] [Citation(s) in RCA: 57] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2019] [Revised: 01/05/2020] [Accepted: 02/27/2020] [Indexed: 11/22/2022] Open
Abstract
The widespread use of organochlorine pesticides (OCPs), essentially for the control of insects and the cultivation of food crops, has led to the pollution of ecosystems. Despite being banned several years ago in the developed world, extensive use remains ongoing on the African continent. This review summarizes the occurrence, distributions, sources, and trends of OCPs in seven environmental matrices (atmosphere, water, sediments, soils, biota, human fluids and food products) in Africa. Findings in this review revealed that α-HCH, β-HCH dichlorodiphenyltrichloroethane (DDTs), and endosulfans were the most persistent OCP residues in the African environment, particularly DDTs in breast milk samples occurring in levels above the WHO stipulated limits, thus indicating a call for concern. Also, there was paucity of data available on OCP concentrations in ambient air. Future research efforts should prioritize testing these pollutants in the atmosphere, especially in countries where they are used more frequently. While most POP analysis studies used gas chromatography coupled to electron capture detector or mass spectrometer, it is recommended that further studies should use more sensitive analytical techniques such as gas chromatography with tandem mass spectrometry (GC-MS/MS), or gas chromatography coupled to high-resolution mass spectrometry (GC-HRMS). These instruments allow for the detection of secondary and tertiary metabolites, especially those found in water, biota and food products, which are critical vectors of OCPs to human and animal bodies. Training of farmers and other domestic users on the handling of pesticides is proposed.
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Affiliation(s)
- Chijioke Olisah
- Department of Pure and Applied Chemistry, University of Fort Hare, Alice 5700, South Africa
- Applied and Environmental Microbiology Research Group (AEMREG), Alice 5700, South Africa
- SAMRC, Microbial Water Quality Monitoring Centre, University of Fort Hare, Alice 5700, South Africa
| | - Omobola O. Okoh
- Department of Pure and Applied Chemistry, University of Fort Hare, Alice 5700, South Africa
- Applied and Environmental Microbiology Research Group (AEMREG), Alice 5700, South Africa
- SAMRC, Microbial Water Quality Monitoring Centre, University of Fort Hare, Alice 5700, South Africa
| | - Anthony I. Okoh
- Applied and Environmental Microbiology Research Group (AEMREG), Alice 5700, South Africa
- SAMRC, Microbial Water Quality Monitoring Centre, University of Fort Hare, Alice 5700, South Africa
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Khan MI, Cheema SA, Anum S, Niazi NK, Azam M, Bashir S, Ashraf I, Qadri R. Phytoremediation of Agricultural Pollutants. CONCEPTS AND STRATEGIES IN PLANT SCIENCES 2020. [DOI: 10.1007/978-3-030-00099-8_2] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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Li X, Chen AY, Yu LY, Chen XX, Xiang L, Zhao HM, Mo CH, Li YW, Cai QY, Wong MH, Li H. Effects of β-cyclodextrin on phytoremediation of soil co-contaminated with Cd and BDE-209 by arbuscular mycorrhizal amaranth. CHEMOSPHERE 2019; 220:910-920. [PMID: 33395812 DOI: 10.1016/j.chemosphere.2018.12.211] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/15/2018] [Revised: 12/14/2018] [Accepted: 12/31/2018] [Indexed: 06/12/2023]
Abstract
Pot experiments were conducted to investigate the effects of a series of β-cyclodextrin (β-CD) on phytoremediation of soil co-contaminated with Cd and BDE-209 by amaranth (Amaranthus hypochondriacus L.) inoculated with arbuscular mycorrhizal fungus (AMF) - Rhizophagus intraradices. Results showed that the combination of mycorrhizal amaranth and 0.4% β-CD (RI+β0.4) significantly enhanced Cd concentrations and contents in shoots, total PBDEs concentration in roots, and BDE-209 dissipation in soil. Moreover, the RI+β0.4 treatment exerted the highest removal efficiency of both Cd and BDE-209. On the contrary, the xylem area, shoot Cd and BDE-209 concentrations and contents, and removal efficiency of Cd were markedly reduced in mycorrhizal amaranth with 0.8% or 1.2% β-CD treatments (RI+β0.8, RI+β1.2), compared with single inoculation treatment. The well-organized chloroplast and well-defined root anatomical structure were also observed in the treatment of RI+β0.4. Positive correlation was found between shoot biomass and chlorophyll concentrations. Shoot Cd or BDE-209 concentrations were positively correlated with xylem areas. In conclusion, mycorrhizal amaranth added with 0.4% β-CD could be used for the decontamination of soil polluted with mixture of Cd and BDE-209 due to the higher chlorophyll concentration and the larger xylem area.
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Affiliation(s)
- Xing Li
- Guangdong Provincial Research Centre for Environment Pollution Control and Remediation Materials, Department of Ecology, College of Life Science and Technology, Jinan University, Guangzhou, 510632, PR China
| | - Ao Yu Chen
- Guangdong Provincial Research Centre for Environment Pollution Control and Remediation Materials, Department of Ecology, College of Life Science and Technology, Jinan University, Guangzhou, 510632, PR China
| | - Le Yi Yu
- Guangdong Provincial Research Centre for Environment Pollution Control and Remediation Materials, Department of Ecology, College of Life Science and Technology, Jinan University, Guangzhou, 510632, PR China
| | - Xue Xue Chen
- Guangdong Provincial Research Centre for Environment Pollution Control and Remediation Materials, Department of Ecology, College of Life Science and Technology, Jinan University, Guangzhou, 510632, PR China
| | - Lei Xiang
- Guangdong Provincial Research Centre for Environment Pollution Control and Remediation Materials, Department of Ecology, College of Life Science and Technology, Jinan University, Guangzhou, 510632, PR China
| | - Hai Ming Zhao
- Guangdong Provincial Research Centre for Environment Pollution Control and Remediation Materials, Department of Ecology, College of Life Science and Technology, Jinan University, Guangzhou, 510632, PR China
| | - Ce Hui Mo
- Guangdong Provincial Research Centre for Environment Pollution Control and Remediation Materials, Department of Ecology, College of Life Science and Technology, Jinan University, Guangzhou, 510632, PR China
| | - Yan Wen Li
- Guangdong Provincial Research Centre for Environment Pollution Control and Remediation Materials, Department of Ecology, College of Life Science and Technology, Jinan University, Guangzhou, 510632, PR China
| | - Quan Ying Cai
- Guangdong Provincial Research Centre for Environment Pollution Control and Remediation Materials, Department of Ecology, College of Life Science and Technology, Jinan University, Guangzhou, 510632, PR China
| | - Ming Hung Wong
- Guangdong Provincial Research Centre for Environment Pollution Control and Remediation Materials, Department of Ecology, College of Life Science and Technology, Jinan University, Guangzhou, 510632, PR China; Consortium on Environment, Health, Education and Research (CHEER), and Department of Science and Environmental Studies, The Education University of Hong Kong, Tai Po, Hong Kong, China
| | - Hui Li
- Guangdong Provincial Research Centre for Environment Pollution Control and Remediation Materials, Department of Ecology, College of Life Science and Technology, Jinan University, Guangzhou, 510632, PR China.
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Li X, Chen AY, Wu Y, Wu L, Xiang L, Zhao HM, Cai QY, Li YW, Mo CH, Wong MH, Li H. Applying β-cyclodextrin to amaranth inoculated with white-rot fungus for more efficient remediation of soil co-contaminated with Cd and BDE-209. THE SCIENCE OF THE TOTAL ENVIRONMENT 2018; 634:417-426. [PMID: 29627565 DOI: 10.1016/j.scitotenv.2018.03.310] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/28/2017] [Revised: 03/18/2018] [Accepted: 03/25/2018] [Indexed: 06/08/2023]
Abstract
A pot experiment was conducted to investigate the effect of a series of β-cyclodextrin (β-CD) concentrations on bioremediation of soil co-contaminated with Cd and BDE-209 using amaranth and the white-rot fungus Phanerochaete chrysosporium, with BDE-209 degrading ability. Results showed that the white-rot fungus was beneficial to the growth of amaranth, Cd uptake and BDE-209 degradation. Addition of β-CD further increased biomass of both shoots and roots, shoot Cd concentrations and contents, chlorophyll concentrations and soil manganese peroxidase (MnP) activities. Furthermore, well-organized mesophyll cells were observed in β-CD treatments, implying that the combination of white-rot fungus and β-CD can alleviate the stresses of Cd and BDE-209 to mesophyll cells. The BDE-209 degradation rate was positively correlated to β-CD concentration and MnP activity in soil. Our results also revealed that RF+β0.8 treatment possessed the greatest Cd removal efficiency due to its well-configured mesophyll cells and the highest shoot biomass, chlorophyll concentration, and shoot Cd concentration. Considering simultaneous removal of Cd and BDE-209 from soil, using 0.8% β-CD to amaranth inoculated with white-rot fungus is a promising way forward for the phytoremediation of soil co-contaminated with Cd and BDE-209. A high percentage of mono-BDE was detected in inoculated amaranth, suggesting that BDE-209 was debrominated into low brominated PBDEs by the fungus in soil, which were then absorbed and further debrominated into mono-BDE in the plant.
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Affiliation(s)
- Xing Li
- Guangdong Provincial Research Center for Environment Pollution Control and Remediation Materials, College of Life Science and Technology, Jinan University, Guangzhou 510632, PR China
| | - Ao Yu Chen
- Guangdong Provincial Research Center for Environment Pollution Control and Remediation Materials, College of Life Science and Technology, Jinan University, Guangzhou 510632, PR China
| | - Yang Wu
- Guangdong Provincial Research Center for Environment Pollution Control and Remediation Materials, College of Life Science and Technology, Jinan University, Guangzhou 510632, PR China
| | - Li Wu
- Guangdong Provincial Research Center for Environment Pollution Control and Remediation Materials, College of Life Science and Technology, Jinan University, Guangzhou 510632, PR China
| | - Lei Xiang
- Guangdong Provincial Research Center for Environment Pollution Control and Remediation Materials, College of Life Science and Technology, Jinan University, Guangzhou 510632, PR China
| | - Hai Ming Zhao
- Guangdong Provincial Research Center for Environment Pollution Control and Remediation Materials, College of Life Science and Technology, Jinan University, Guangzhou 510632, PR China
| | - Quan Ying Cai
- Guangdong Provincial Research Center for Environment Pollution Control and Remediation Materials, College of Life Science and Technology, Jinan University, Guangzhou 510632, PR China
| | - Yan Wen Li
- Guangdong Provincial Research Center for Environment Pollution Control and Remediation Materials, College of Life Science and Technology, Jinan University, Guangzhou 510632, PR China
| | - Ce Hui Mo
- Guangdong Provincial Research Center for Environment Pollution Control and Remediation Materials, College of Life Science and Technology, Jinan University, Guangzhou 510632, PR China
| | - Ming Hung Wong
- Guangdong Provincial Research Center for Environment Pollution Control and Remediation Materials, College of Life Science and Technology, Jinan University, Guangzhou 510632, PR China; Consortium on Environment, Health, Education and Research (CHEER), and Department of Science and Environmental Studies, The Education University of Hong Kong, Tai Po, Hong Kong SAR, PR China
| | - Hui Li
- Guangdong Provincial Research Center for Environment Pollution Control and Remediation Materials, College of Life Science and Technology, Jinan University, Guangzhou 510632, PR China.
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Morillo E, Villaverde J. Advanced technologies for the remediation of pesticide-contaminated soils. THE SCIENCE OF THE TOTAL ENVIRONMENT 2017; 586:576-597. [PMID: 28214125 DOI: 10.1016/j.scitotenv.2017.02.020] [Citation(s) in RCA: 151] [Impact Index Per Article: 21.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/25/2016] [Revised: 01/30/2017] [Accepted: 02/03/2017] [Indexed: 06/06/2023]
Abstract
The occurrence of pesticides in soil has become a highly significant environmental problem, which has been increased by the vast use of pesticides worldwide and the absence of remediation technologies that have been tested at full-scale. The aim of this review is to give an overview on technologies really studied and/or developed during the last years for remediation of soils contaminated by pesticides. Depending on the nature of the decontamination process, these techniques have been included into three categories: containment-immobilization, separation or destruction. The review includes some considerations about the status of emerging technologies as well as their advantages, limitations, and pesticides treated. In most cases, emerging technologies, such as those based on oxidation-reduction or bioremediation, may be incorporated into existing technologies to improve their performance or overcome limitations. Research and development actions are still needed for emerging technologies to bring them for full-scale implementation.
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Affiliation(s)
- E Morillo
- Institute of Natural Resources and Agrobiology of Seville (IRNAS-CSIC), Av. Reina Mercedes, 10, Sevilla E-41012, Spain.
| | - J Villaverde
- Institute of Natural Resources and Agrobiology of Seville (IRNAS-CSIC), Av. Reina Mercedes, 10, Sevilla E-41012, Spain
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Dong J, Wang L, Ma F, Yang J, Zhang X, Zhao T, Qi S. Effects of Funnelliformis mosseae inoculation on alleviating atrazine damage in Canna indica L. var. flava Roxb. INTERNATIONAL JOURNAL OF PHYTOREMEDIATION 2017; 19:46-55. [PMID: 27484395 DOI: 10.1080/15226514.2016.1216079] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Atrazine residue in the environment continually damages plants and therefore requires immediate attention and effective development of methods for its decontamination. The effects of Funnelliformis mosseae inoculation on growth and physiology in atrazine-treated Canna indica L. var. flava Roxb. were investigated. At atrazine concentrations up to 15 mg L-1, the growth of C. indica plants were negatively affected. Inoculation with F. mosseae alleviated the atrazine inhibition of plant growth and biomass. Furthermore, the chlorophyll content and root function increased under F. mosseae inoculation, and the oxidative stress of malondialdehyde, peroxidase, and superoxide dismutase activities induced by atrazine were also alleviated by F. mosseae inoculation. The removal rate of atrazine by untreated C. indica was significant, with removal rates of 20.5-55.3% by the end of a 14-day experiment; however, F. mosseae inoculation increased the removal rate to 35.6-75.1%. In conclusion, F. mosseae inoculation can alleviate the damage induced by atrazine in C. indica. Accordingly, C. indica inoculated with F. mosseae has excellent potential to be used in phytoremediation in habitats polluted by high atrazine concentrations.
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Affiliation(s)
- Jing Dong
- a School of Municipal and Environmental Engineering , Harbin Institute of Technology , Harbin , China
| | - Li Wang
- a School of Municipal and Environmental Engineering , Harbin Institute of Technology , Harbin , China
| | - Fang Ma
- a School of Municipal and Environmental Engineering , Harbin Institute of Technology , Harbin , China
| | - Jixian Yang
- a School of Municipal and Environmental Engineering , Harbin Institute of Technology , Harbin , China
| | - Xue Zhang
- a School of Municipal and Environmental Engineering , Harbin Institute of Technology , Harbin , China
| | - Ting Zhao
- a School of Municipal and Environmental Engineering , Harbin Institute of Technology , Harbin , China
| | - Shanshan Qi
- a School of Municipal and Environmental Engineering , Harbin Institute of Technology , Harbin , China
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14
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Mansouri A, Cregut M, Abbes C, Durand MJ, Landoulsi A, Thouand G. The Environmental Issues of DDT Pollution and Bioremediation: a Multidisciplinary Review. Appl Biochem Biotechnol 2016; 181:309-339. [PMID: 27591882 DOI: 10.1007/s12010-016-2214-5] [Citation(s) in RCA: 67] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2016] [Accepted: 08/12/2016] [Indexed: 12/01/2022]
Abstract
DDT (1,1,1-trichloro-2,2-bis(4-chlorophenyl) ethane) is probably the best known and most useful organochlorine insecticide in the world which was used since 1945 for agricultural purposes and also for vector-borne disease control such as malaria since 1955, until its banishment in most countries by the Stockholm convention for ecologic considerations. However, the World Health Organization allowed its reintroduction only for control of vector-borne diseases in some tropical countries in 2006. Due to its physicochemical properties and specially its persistence related with a half-life up to 30 years, DDT linked to several health and social problems which are due to its accumulation in the environment and its biomagnification properties in living organisms. This manuscript compiles a multidisciplinary review to evaluate primarily (i) the worldwide contamination of DDT and (ii) its (eco) toxicological impact onto living organisms. Secondly, several ways for DDT bioremediation from contaminated environment are discussed. For this, reports on DDT biodegradation capabilities by microorganisms and ways to enhance bioremediation strategies to remove DDT are presented. The different existing strategies for DDT bioremediation are evaluated with their efficiencies and limitations to struggle efficiently this contaminant. Finally, rising new approaches and technological bottlenecks to promote DDT bioremediation are discussed.
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Affiliation(s)
- Ahlem Mansouri
- University of Nantes, UMR CNRS 6144 GEPEA, CBAC group, 18 Bvd Gaston Defferre, 85000, La Roche sur Yon, France.,Faculty of Sciences of Bizerte, Laboratory of Biochemistry and Molecular Biology, University of Carthage, Zarzouna, 7021, Tunisia
| | - Mickael Cregut
- University of Nantes, UMR CNRS 6144 GEPEA, CBAC group, 18 Bvd Gaston Defferre, 85000, La Roche sur Yon, France
| | - Chiraz Abbes
- Faculty of Sciences of Bizerte, Laboratory of Biochemistry and Molecular Biology, University of Carthage, Zarzouna, 7021, Tunisia
| | - Marie-Jose Durand
- University of Nantes, UMR CNRS 6144 GEPEA, CBAC group, 18 Bvd Gaston Defferre, 85000, La Roche sur Yon, France
| | - Ahmed Landoulsi
- Faculty of Sciences of Bizerte, Laboratory of Biochemistry and Molecular Biology, University of Carthage, Zarzouna, 7021, Tunisia
| | - Gerald Thouand
- University of Nantes, UMR CNRS 6144 GEPEA, CBAC group, 18 Bvd Gaston Defferre, 85000, La Roche sur Yon, France.
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Agnello AC, Huguenot D, van Hullebusch ED, Esposito G. Citric acid- and Tween(®) 80-assisted phytoremediation of a co-contaminated soil: alfalfa (Medicago sativa L.) performance and remediation potential. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2016; 23:9215-9226. [PMID: 26838038 DOI: 10.1007/s11356-015-5972-7] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/25/2015] [Accepted: 12/14/2015] [Indexed: 06/05/2023]
Abstract
A pot experiment was designed to assess the phytoremediation potential of alfalfa (Medicago sativa L.) in a co-contaminated (i.e., heavy metals and petroleum hydrocarbons) soil and the influence of citric acid and Tween(®) 80 (polyethylene glycol sorbitan monooleate), applied individually and combined together, for their possible use in chemically assisted phytoremediation. The results showed that alfalfa plants could tolerate and grow in a co-contaminated soil. Over a 90-day experimental time, shoot and root biomass increased and negligible plant mortality occurred. Heavy metals were uptaken by alfalfa to a limited extent, mostly by plant roots, and their concentration in plant tissues were in the following order: Zn > Cu > Pb. Microbial population (alkane-degrading microorganisms) and activity (lipase enzyme) were enhanced in the presence of alfalfa with rhizosphere effects of 9.1 and 1.5, respectively, after 90 days. Soil amendments did not significantly enhance plant metal concentration or total uptake. In contrast, the combination of citric acid and Tween(®) 80 significantly improved alkane-degrading microorganisms (2.4-fold increase) and lipase activity (5.3-fold increase) in the rhizosphere of amended plants, after 30 days of experiment. This evidence supports a favorable response of alfalfa in terms of tolerance to a co-contaminated soil and improvement of rhizosphere microbial number and activity, additionally enhanced by the joint application of citric acid and Tween(®) 80, which could be promising for future phytoremediation applications.
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Affiliation(s)
- A C Agnello
- Université Paris-Est, Laboratoire Géomatériaux et Environnement (EA 4508), UPEM, 77454, Marne-la-Vallée, France
- Dipartimento di Ingegneria Civile e Meccanica, Università degli Studi di Cassino e del Lazio Meridionale, via Di Biasio 43, 03043, Cassino, FR, Italy
| | - D Huguenot
- Université Paris-Est, Laboratoire Géomatériaux et Environnement (EA 4508), UPEM, 77454, Marne-la-Vallée, France.
| | - E D van Hullebusch
- Université Paris-Est, Laboratoire Géomatériaux et Environnement (EA 4508), UPEM, 77454, Marne-la-Vallée, France
| | - G Esposito
- Dipartimento di Ingegneria Civile e Meccanica, Università degli Studi di Cassino e del Lazio Meridionale, via Di Biasio 43, 03043, Cassino, FR, Italy
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16
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Dong J, Wang L, Ma F, Yang J, Qi S, Zhao T. The effect of Funnelliformis mosseae inoculation on the phytoremediation of atrazine by the aquatic plant Canna indica L. var. flava Roxb. RSC Adv 2016. [DOI: 10.1039/c5ra23583a] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Funnelliformis mosseaeinoculation exhibited a beneficial effect on the phytoremediation of atrazine in water by the aquatic plantCanna indicaL.
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Affiliation(s)
- Jing Dong
- State Key Lab of Urban Water Resource and Environment
- School of Municipal and Environmental Engineering
- Harbin Institute of Technology
- Harbin 150090
- People's Republic of China
| | - Li Wang
- State Key Lab of Urban Water Resource and Environment
- School of Municipal and Environmental Engineering
- Harbin Institute of Technology
- Harbin 150090
- People's Republic of China
| | - Fang Ma
- State Key Lab of Urban Water Resource and Environment
- School of Municipal and Environmental Engineering
- Harbin Institute of Technology
- Harbin 150090
- People's Republic of China
| | - Jixian Yang
- State Key Lab of Urban Water Resource and Environment
- School of Municipal and Environmental Engineering
- Harbin Institute of Technology
- Harbin 150090
- People's Republic of China
| | - Shanshan Qi
- State Key Lab of Urban Water Resource and Environment
- School of Municipal and Environmental Engineering
- Harbin Institute of Technology
- Harbin 150090
- People's Republic of China
| | - Ting Zhao
- State Key Lab of Urban Water Resource and Environment
- School of Municipal and Environmental Engineering
- Harbin Institute of Technology
- Harbin 150090
- People's Republic of China
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17
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Evaluation of Ricinus communis L. for the Phytoremediation of Polluted Soil with Organochlorine Pesticides. BIOMED RESEARCH INTERNATIONAL 2015; 2015:549863. [PMID: 26301249 PMCID: PMC4537713 DOI: 10.1155/2015/549863] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/28/2014] [Accepted: 05/27/2015] [Indexed: 11/29/2022]
Abstract
Phytoremediation is an attractive alternative to conventional treatments of soil due to advantages such as low cost, large application areas, and the possibility of in situ treatment. This study presents the assessment of phytoremediation processes conducted under controlled experimental conditions to evaluate the ability of Ricinus communis L., tropical plant species, to promote the degradation of 15 persistent organic pollutants (POPs), in a 66-day period. The contaminants tested were hexachlorocyclohexane (HCH), DDT, heptachlor, aldrin, and others. Measurements made in rhizosphere soil indicate that the roots of the studied species reduce the concentration of pesticides. Results obtained during this study indicated that the higher the hydrophobicity of the organic compound and its molecular interaction with soil or root matrix the greater its tendency to concentrate in root tissues and the research showed the following trend: HCHs < diclofop-methyl < chlorpyrifos < methoxychlor < heptachlor epoxide < endrin < o,p′-DDE < heptachlor < dieldrin < aldrin < o,p′-DDT < p,p′-DDT by increasing order of log Kow values. The experimental results confirm the importance of vegetation in removing pollutants, obtaining remediation from 25% to 70%, and demonstrated that Ricinus communis L. can be used for the phytoremediation of such compounds.
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Ali Romeh A. Enhancing agents for phytoremediation of soil contaminated by cyanophos. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2015; 117:124-131. [PMID: 25847752 DOI: 10.1016/j.ecoenv.2015.03.029] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/23/2014] [Revised: 03/19/2015] [Accepted: 03/23/2015] [Indexed: 06/04/2023]
Abstract
Cyanophos is commonly used in Egypt to control various agricultural and horticultural pests. It is a strong contaminant in the crop culturing environments because it is highly persistent and accumulates in the soil. This contaminant can be removed by phytoremediation, which is the use of plants to clean-up pollutants. Here we tested several several strategies to improve the effectiveness of this technology, which involved various techniques to solubilize contaminants. The phytoremediation efficiency of Plantago major L. was improved more by liquid silicon dioxide (SiO₂) than by other solubility-enhancing agents, resulting in the removal of significant amounts of cyanophos from contaminated soil. Liquid SiO₂ increased the capacity of P. major L. to remove cyanophos from soil by 45.9% to 74.05%. In P. major L. with liquid SiO₂, leaves extracted more cyanophos (32.99 µg/g) than roots (13.33 µg/g) over 3 days. The use of solubilization agents such as surfactants, hydroxypropyl-ß-cyclodextrin (HPßCD), natural humic acid acid (HA), and Tween 80 resulted in the removal of 60 convergents of cyanophos from polluted soil. Although a batch equilibrium technique showed that use of HPßCD resulted in the efficient removal of cyanophos from soil, a greater amount of cyanophos was removed by P. major L. with SiO₂. Moreover, a large amount of cyanophos was removed from soil by rice bran. This study indicates that SiO₂ can improve the efficiency of phytoremediation of cyanophos.
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Affiliation(s)
- Ahmed Ali Romeh
- Plant Production Department, Faculty of Technology and Development, Zagazig University, Zagazig, Egypt.
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19
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Colonization on root surface by a phenanthrene-degrading endophytic bacterium and its application for reducing plant phenanthrene contamination. PLoS One 2014; 9:e108249. [PMID: 25247301 PMCID: PMC4172705 DOI: 10.1371/journal.pone.0108249] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2013] [Accepted: 08/27/2014] [Indexed: 11/19/2022] Open
Abstract
A phenanthrene-degrading endophytic bacterium, Pn2, was isolated from Alopecurus aequalis Sobol grown in soils contaminated with polycyclic aromatic hydrocarbons (PAHs). Based on morphology, physiological characteristics and the 16S rRNA gene sequence, it was identified as Massilia sp. Strain Pn2 could degrade more than 95% of the phenanthrene (150 mg·L−1) in a minimal salts medium (MSM) within 48 hours at an initial pH of 7.0 and a temperature of 30°C. Pn2 could grow well on the MSM plates with a series of other PAHs, including naphthalene, acenaphthene, anthracene and pyrene, and degrade them to different degrees. Pn2 could also colonize the root surface of ryegrass (Lolium multiflorum Lam), invade its internal root tissues and translocate into the plant shoot. When treated with the endophyte Pn2 under hydroponic growth conditions with 2 mg·L−1 of phenanthrene in the Hoagland solution, the phenanthrene concentrations in ryegrass roots and shoots were reduced by 54% and 57%, respectively, compared with the endophyte-free treatment. Strain Pn2 could be a novel and useful bacterial resource for eliminating plant PAH contamination in polluted environments by degrading the PAHs inside plants. Furthermore, we provide new perspectives on the control of the plant uptake of PAHs via endophytic bacteria.
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Guo P, Chen W, Li Y, Chen T, Li L, Wang G. Selection of surfactant in remediation of DDT-contaminated soil by comparison of surfactant effectiveness. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2014; 21:1370-1379. [PMID: 23900948 DOI: 10.1007/s11356-013-1993-2] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/01/2013] [Accepted: 07/08/2013] [Indexed: 06/02/2023]
Abstract
With an aim to select the most appropriate surfactant for remediation of DDT-contaminated soil, the performance of nonionic surfactants Tween80, TX-100, and Brij35 and one anionic surfactant sodium dodecyl benzene sulfonate (SDBS) in enhancement of DDT water solubility and desorption of DDT from contaminated soil and their adsorption onto soil and ecotoxicities were investigated in this study. Tween80 had the highest solubilizing and soil-washing ability for DDT among the four experimental surfactants. The adsorption loss of surfactants onto soil followed the order of TX-100 > Tween80 > Brij35 > SDBS. The ecotoxicity of Tween80 to ryegrass (Lolium perenne L.) was lowest. The overall performance considering about the above four aspects suggested that Tween80 should be selected for the remediation of DDT-contaminated soil, because Tween80 had the greatest solubilizing and soil-washing ability for DDT, less adsorption loss onto soil, and the lowest ecotoxicity in this experiment.
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Affiliation(s)
- Ping Guo
- Key Lab of Groundwater Resources and Environment, Ministry of Education, College of Environment and Resources, Jilin University, No. 2519 Jiefang Street, Changchun, 130021, China,
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Turgut C, Cutright TJ, Mermer S, Atatanir L, Turgut N, Usluy M, Erdogan O. The source of DDT and its metabolites contamination in Turkish agricultural soils. ENVIRONMENTAL MONITORING AND ASSESSMENT 2013; 185:1087-1093. [PMID: 22552491 DOI: 10.1007/s10661-012-2616-y] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/21/2011] [Accepted: 04/02/2012] [Indexed: 05/31/2023]
Abstract
The concentration and impact of 1,1,1-trichloro-2,2-bis(4-chlorophenyl)-ethane (DDT) and its metabolites (DDE: 1,1-dichloro-2,2-bis(4-chlorophenyl)ethylene) on the environment was expected to decrease after its ban in the mid-1980s. Unfortunately, DDT contamination via its presence as an impurity in dicofol (2,2,2-trichloro-1,1-bis(4-chlorophenyl)ethanol) has led to a new source of contamination. This is particularly true especially in cotton production in Söke Plain, Turkey, where difocol-based pesticides are being used. The aim of this research was to investigate the extent and source of DDT contamination in cotton soils. Söke Plain soil samples were collected from 0-30, 30-60, and 60-90-cm depth and analyzed by GC/MS/MS. o,p'-DDT and p, p'-DDE were detected at 16.2 % and 17.6 % of the sites in the 0-30-cm depth of soils. In the 30-60 cm, p, p'-DDT (14.9 %), o, p'-DDE (8.1 %) and p, p'-DDE (2.7 %) were found in soil samples, and p, p'-DDT was the most prevalent with 9.5 % of the sampling sites. The dominant source of DDT particularly in the 60-90-cm depth was due to historic use of DDT. The presence of p, p'-DDE, o, p'-DDE and p,p'-DDT in the topsoil was attributed to recent dicofol applications.
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Affiliation(s)
- Cafer Turgut
- Faculty of Agriculture, Adnan Menderes University, 09100 Aydin, Turkey.
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22
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Zhu ZQ, Yang XE, Wang K, Huang HG, Zhang X, Fang H, Li TQ, Alva AK, He ZL. Bioremediation of Cd-DDT co-contaminated soil using the Cd-hyperaccumulator Sedum alfredii and DDT-degrading microbes. JOURNAL OF HAZARDOUS MATERIALS 2012; 235-236:144-151. [PMID: 22868749 DOI: 10.1016/j.jhazmat.2012.07.033] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/11/2011] [Revised: 06/29/2012] [Accepted: 07/16/2012] [Indexed: 06/01/2023]
Abstract
The development of an integrated strategy for the remediation of soil co-contaminated by heavy metals and persistent organic pollutants is a major research priority for the decontamination of soil slated for use in agricultural production. The objective of this study was to develop a bioremediation strategy for fields co-contaminated with cadmium (Cd), dichlorodiphenyltrichloroethane (DDT), and its metabolites 1, 1-dichloro-2, 2-bis (4-chlorophenyl) ethylene (DDE) and 1, 1-dichloro-2, 2-bis (4-chlorophenyl) ethane (DDD) (DDT, DDE, and DDD are collectively called DDs) using an identified Cd-hyperaccumulator plant Sedum alfredii (SA) and DDT-degrading microbes (DDT-1). Initially, inoculation with DDT-1 was shown to increase SA root biomass in a pot experiment. When SA was applied together with DDT-1, the levels of Cd and DDs in the co-contaminated soil decreased by 32.1-40.3% and 33.9-37.6%, respectively, in a pot experiment over 18 months compared to 3.25% and 3.76% decreases in soil Cd and DDs, respectively, in unplanted, untreated controls. A subsequent field study (18-month duration) in which the levels of Cd and DDs decreased by 31.1% and 53.6%, respectively, confirmed the beneficial results of this approach. This study demonstrates that the integrated bioremediation strategy is effective for the remediation of Cd-DDs co-contaminated soils.
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Affiliation(s)
- Zhi-qiang Zhu
- MOE Key Laboratory of Environment Remediation and Ecosystem Health, College of Environmental and Resources Science, Zhejiang University, Zijingang Campus, Hangzhou 310058, China
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Mitton FM, Gonzalez M, Peña A, Miglioranza KSB. Effects of amendments on soil availability and phytoremediation potential of aged p,p'-DDT, p,p'-DDE and p,p'-DDD residues by willow plants (Salix sp.). JOURNAL OF HAZARDOUS MATERIALS 2012; 203-204:62-68. [PMID: 22188788 DOI: 10.1016/j.jhazmat.2011.11.080] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/27/2011] [Revised: 11/17/2011] [Accepted: 11/24/2011] [Indexed: 05/31/2023]
Abstract
Combining technologies offer a great potential to phytoremediate contaminated soils. As sequestration occurs, pollutants availability decline and organic amendments could counterbalance that situation. This work studies the potential of willow plants to phytoremediate soil containing p,p'-DDT (101.3 ng g(-1)) and p,p'-DDE (381.4 ng g(-1)) residues. The effect of root exudates, Tween 80 and citric and oxalic acids on DDTs desorption and availability from soil was tested together with the plant uptake and translocation. Treatments increased the p,p'-DDE/p,p'-DDT ratio when compared with control (water) soil. Watering with carboxylic acids led to a significant enhancement of the quantities of p,p'-DDT and p,p'-DDE desorbed from soil that was related with an increase of organic carbon in solution. Willow plants accumulated DDTs under all treatments although plants watered with carboxylic acids showed the highest leaves translocation factor for both p,p'-DDT and p,p'-DDE. Results indicate that the addition of carboxylic acids enhanced DDTs bioavailability which further increases plant uptake and translocation. The effect of surfactants on the soil-plant systems needs to be better assessed for this particular soil and plant species. The enhancement of soluble organic carbon is crucial at the moment of evaluating DDTs release from soil as well as to establish cleaning strategies.
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Affiliation(s)
- Francesca M Mitton
- Laboratorio de Ecotoxicología, Facultad de Ciencias Exactas y Naturales, Universidad Nacional de Mar del Plata (UNMdP), Mar del Plata, Argentina
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Wu FY, Yu XZ, Wu SC, Lin XG, Wong MH. Phenanthrene and pyrene uptake by arbuscular mycorrhizal maize and their dissipation in soil. JOURNAL OF HAZARDOUS MATERIALS 2011; 187:341-347. [PMID: 21282002 DOI: 10.1016/j.jhazmat.2011.01.024] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/14/2010] [Revised: 11/22/2010] [Accepted: 01/09/2011] [Indexed: 05/30/2023]
Abstract
Polycyclic aromatic hydrocarbons (PAHs) commonly found in soils can be degraded in rhizosphere, but may also be taken up by plants. The effects of arbuscular mycorrhizal (AM) fungi on uptake of phenanthrene (PHE) and pyrene (PYR) in maize and on their dissipation in soil were investigated using the three-compartmentalized rhizoboxes. Inoculation of Glomus mosseae significantly (p<0.01) increased PHE and PYR concentrations in maize roots and significantly (p<0.05) enhanced PYR translocation from roots to stems in the soil treatments of the PHE+PYR spiked-soils added into the central compartment of the rhizoboxes. There was a significant (p<0.05) dissipation gradient of PHE and PYR observed away from the maize roots, with the highest dissipation rates recorded in rhizosphere zone in the central compartments of the rhizoboxes, followed by near rhizosphere zone and bulk soil zone in the outer compartments. However, G. mosseae only exerted minimal impacts on dissipation of PHE and PYR in the rhizosphere. The present study suggested that the hyphae and extraradical mycelium of AM fungi could play important roles in the uptake and translocation of PHE and PYR in plants. The present results indicated that there is a potential for the use of AM fungi and plant for remediating PAHs contaminated soils.
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Affiliation(s)
- F Y Wu
- Department of Biology, Croucher Institute for Environmental Sciences, Hong Kong Baptist University, Kowloon Tong, Hong Kong, China
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25
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Wang S, Zhang S, Huang H, Christie P. Behavior of decabromodiphenyl ether (BDE-209) in soil: effects of rhizosphere and mycorrhizal colonization of ryegrass roots. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2011; 159:749-753. [PMID: 21183262 DOI: 10.1016/j.envpol.2010.11.035] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/16/2010] [Revised: 11/12/2010] [Accepted: 11/13/2010] [Indexed: 05/30/2023]
Abstract
A rhizobox experiment was conducted to investigate degradation of decabromodiphenyl ether (BDE-209) in the rhizosphere of ryegrass and the influence of root colonization with an arbuscular mycorrhizal (AM) fungus. BDE-209 dissipation in soil varied with its proximity to the roots and was enhanced by AM inoculation. A negative correlation (P < 0.001, R(2) = 0.66) was found between the residual BDE-209 concentration in soil and soil microbial biomass estimated as the total phospholipid fatty acids, suggesting a contribution of microbial degradation to BDE-209 dissipation. Twelve and twenty-four lower brominated PBDEs were detected in soil and plant samples, respectively, with a higher proportion of di- through hepta-BDE congeners in the plant tissues than in the soils, indicating the occurrence of BDE-209 debromination in the soil-plant system. AM inoculation increased the levels of lower brominated PBDEs in ryegrass. These results provide important information about the behavior of BDE-209 in the soil-plant system.
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Affiliation(s)
- Sen Wang
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, P.O. Box 2871, Beijing 100085, China
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Yu XZ, Wu SC, Wu FY, Wong MH. Enhanced dissipation of PAHs from soil using mycorrhizal ryegrass and PAH-degrading bacteria. JOURNAL OF HAZARDOUS MATERIALS 2011; 186:1206-17. [PMID: 21176862 DOI: 10.1016/j.jhazmat.2010.11.116] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/21/2010] [Revised: 11/06/2010] [Accepted: 11/29/2010] [Indexed: 05/22/2023]
Abstract
The major aim of this experiment was to test the effects of a multi-component bioremediation system consisting of ryegrass (Lolium multiflorum), polycyclic aromatic hydrocarbons (PAHs)-degrading bacteria (Acinetobacter sp.), and arbuscular mycorrhizal fungi (Glomus mosseae) for cleaning up PAHs contaminated soil. Higher dissipation rates were observed in combination treatments: i.e., bacteria+ryegrass (BR), mycorrhizae+ryegrass (MR), and bacteria+mycorrhizae+ryegrass (BMR); than bacteria (B) and ryegrass (R) alone. The growth of ryegrass significantly (p<0.05) increased soil peroxidase activities, leading to enhanced dissipation of phenanthrene (PHE) and pyrene (PYR) from soil. Interactions between ryegrass with the two microbes further enhanced the dissipation of PHE and PYR. Mycorrhizal ryegrass (MR) significantly enhanced the dissipation of PYR from soil, PYR accumulation by ryegrass roots and soil peroxidase activities under lower PHE and PYR levels (0 and 50+50 mg kg(-1)). The present results highlighted the contribution of mycorrhiza and PAH-degrading bacteria in phytoremediation of PAH contaminated soil, however more detailed studies are needed.
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Affiliation(s)
- X Z Yu
- Croucher Institute for Environmental Sciences, Department of Biology, Hong Kong Baptist University, Kowloon Tong, Hong Kong, China
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Wang FY, Tong RJ, Shi ZY, Xu XF, He XH. Inoculations with arbuscular mycorrhizal fungi increase vegetable yields and decrease phoxim concentrations in carrot and green onion and their soils. PLoS One 2011; 6:e16949. [PMID: 21347374 PMCID: PMC3036715 DOI: 10.1371/journal.pone.0016949] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2010] [Accepted: 01/18/2011] [Indexed: 11/18/2022] Open
Abstract
BACKGROUND As one of the most widely used organophosphate insecticides in vegetable production, phoxim (C(12)H(15)N(2)O(3)PS) is often found as residues in crops and soils and thus poses a potential threat to public health and environment. Arbuscular mycorrhizal (AM) fungi may make a contribution to the decrease of organophosphate residues in crops and/or the degradation in soils, but such effects remain unknown. METHODOLOGY/PRINCIPAL FINDINGS A greenhouse pot experiment studied the influence of AM fungi and phoxim application on the growth of carrot and green onion, and phoxim concentrations in the two vegetables and their soil media. Treatments included three AM fungal inoculations with Glomus intraradices BEG 141, G. mosseae BEG 167, and a nonmycorrhizal control, and four phoxim application rates (0, 200, 400, 800 mg l(-1), while 400 mg l(-1) rate is the recommended dose in the vegetable production system). Carrot and green onion were grown in a greenhouse for 130 d and 150 d. Phoxim solution (100 ml) was poured into each pot around the roots 14d before plant harvest. Results showed that mycorrhizal colonization was higher than 70%, and phoxim application inhibited AM colonization on carrot but not on green onion. Compared with the nonmycorrhizal controls, both shoot and root fresh weights of these two vegetables were significantly increased by AM inoculations irrespective of phoxim application rates. Phoxim concentrations in shoots, roots and soils were increased with the increase of phoxim application rate, but significantly decreased by the AM inoculations. Soil phosphatase activity was enhanced by both AM inocula, but not affected by phoxim application rate. In general, G. intraradices BEG 141 had more pronounced effects than G. mosseae BEG 167 on the increase of fresh weight production in both carrot and green onion, and the decrease of phoxim concentrations in plants and soils. CONCLUSIONS/SIGNIFICANCE Our results indicate a promising potential of AM fungi for enhancing vegetable production and reducing organophosphorus pesticide residues in plant tissues and their growth media, as well as for the phytoremediation of organophosphorus pesticide-contaminated soils.
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Affiliation(s)
- Fa Yuan Wang
- Agricultural College, Henan University of Science and Technology, Luoyang, China.
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Gao Y, Li Q, Ling W, Zhu X. Arbuscular mycorrhizal phytoremediation of soils contaminated with phenanthrene and pyrene. JOURNAL OF HAZARDOUS MATERIALS 2011; 185:703-709. [PMID: 20956057 DOI: 10.1016/j.jhazmat.2010.09.076] [Citation(s) in RCA: 57] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/29/2010] [Revised: 07/29/2010] [Accepted: 09/22/2010] [Indexed: 05/30/2023]
Abstract
An available remediation technique--arbuscular mycorrhizal phytoremediation (AMPR)--is further proposed for soils contaminated with phenanthrene and pyrene as representative polycyclic aromatic hydrocarbons (PAHs) utilizing a greenhouse pot experiment. The initial concentrations of phenanthrene and/or pyrene in soils were 103 mg kg(-1) and 74 mg kg(-1), respectively. The host plant was alfalfa (Medicago sativa L.), and the experimental arbuscular mycorrhizal fungi (AMF) were Glomus mosseae and G. etunicatum. More than 98.6% and 88.1% of phenanthrene and pyrene were degraded after 70 days in soils with AMPR. Use of multiple mycorrhizal species significantly promoted degradation of PAHs in soils. The co-contaminant (pyrene) present clearly inhibited the degradation of a single PAH (phenanthrene) in soil. Mycorrhizal colonization caused increased accumulation of PAHs in plant roots but a decrease in shoot. However, plant uptake contributed negligibly to PAH dissipation in AMPR, and plant accumulated PAHs amounted to less than 3.24% of total PAH degradation in mycorrhizal soils. In contrast, the optimized microbiota in mycorrhizal association was responsible for PAH degradation in AMPR. The high rate of PAH dissipation in mycorrhizal soils, the evident promotion of PAH degradation by AM colonization, and the healthy plant growth suggest encouraging opportunities for AMPR of PAH-contaminated soils.
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Affiliation(s)
- Yanzheng Gao
- Institute of Organic Contaminant Control and Soil Remediation, College of Resource and Environmental Sciences, Nanjing Agricultural University, Weigang Road 1, Nanjing 210095, PR China.
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Wang FY, Shi ZY, Tong RJ, Xu XF. Dynamics of phoxim residues in green onion and soil as influenced by arbuscular mycorrhizal fungi. JOURNAL OF HAZARDOUS MATERIALS 2011; 185:112-116. [PMID: 20870354 DOI: 10.1016/j.jhazmat.2010.09.004] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/23/2010] [Revised: 08/31/2010] [Accepted: 09/01/2010] [Indexed: 05/29/2023]
Abstract
Organophosphorus pesticides in crops and soil pose a serious threat to public health and environment. Arbuscular mycorrhizal (AM) fungi may make a contribution to organophosphate degradation in soil and consequently decrease chemical residues in crops. A pot culture experiment was conducted to investigate the influences of Glomus caledonium 90036 and Acaulospora mellea ZZ on the dynamics of phoxim residues in green onion (Allium fistulosum L.) and soil at different harvest dates after phoxim application. Results show that mycorrhizal colonization rates of inoculated plants were higher than 70%. Shoot and root fresh weights did not vary with harvest dates but increased significantly in AM treatments. Phoxim residues in plants and soil decreased gradually with harvest dates, and markedly reduced in AM treatments. Kinetic analysis indicated that phoxim degradation in soil followed a first-order kinetic model. AM inoculation accelerated the degradation process and reduced the half-life. G. caledonium 90036 generally produced more pronounced effects than A. mellea ZZ on both the plant growth and phoxim residues in plants and soil. Our results indicate a promising potential of AM fungi for the control of organophosphate residues in vegetables, as well as for the phytoremediation of organophosphorus pesticide-contaminated soil.
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Affiliation(s)
- Fa Yuan Wang
- Agricultural College, Henan University of Science and Technology, 70# Tianjin Road, Jianxi District, Luoyang, Henan Province 471003, PR China.
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A 60-year journey of mycorrhizal research in China: Past, present and future directions. SCIENCE CHINA-LIFE SCIENCES 2010; 53:1374-98. [DOI: 10.1007/s11427-010-4096-z] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/03/2009] [Accepted: 03/17/2010] [Indexed: 10/18/2022]
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Zhu L, Lu L, Zhang D. Mitigation and remediation technologies for organic contaminated soils. ACTA ACUST UNITED AC 2010. [DOI: 10.1007/s11783-010-0253-7] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Yu Y, Zhang S, Huang H. Behavior of mercury in a soil-plant system as affected by inoculation with the arbuscular mycorrhizal fungus Glomus mosseae. MYCORRHIZA 2010; 20:407-414. [PMID: 20077122 DOI: 10.1007/s00572-009-0296-4] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/02/2009] [Accepted: 12/14/2009] [Indexed: 05/28/2023]
Abstract
Effects of inoculation with the arbuscular mycorrhizal (AM) fungus Glomus mosseae on the behavior of Hg in soil-plant system were investigated using an artificially contaminated soil at the concentrations of 0, 1.0, 2.0, and 4.0 mg Hg kg(-1). Mercury accumulation was lower in mycorrhizal roots than in nonmycorrhizal roots when Hg was added at the rates of 2.0 and 4.0 mg kg(-1), while no obvious difference in shoot Hg concentration was found between mycorrhizal and nonmycorrhizal treatments. Mycorrhizal inoculation significantly decreased the total and extractable Hg concentrations in soil as well as the ratio of extractable to total Hg in soil. Equilibration sorption of Hg by soil was investigated, and the results indicated that mycorrhizal treatment enhanced Hg sorption on soil. The uptake of Hg was lower by mycorrhizal roots than by nonmycorrhizal roots. These experiments provide further evidence for the role of mycorrhizal inoculation in increasing immobilization of Hg in soil and reducing the uptake of Hg by roots. Calculation on mass balance of Hg in soil suggests the presence of Hg loss from soil presumably through evaporation, and AM inoculation enhanced Hg evaporation. This was evidenced by a chamber study to detect the Hg evaporated from soil.
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Affiliation(s)
- Yang Yu
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China
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Wu N, Huang H, Zhang S, Zhu YG, Christie P, Zhang Y. Phenanthrene uptake by Medicago sativa L. under the influence of an arbuscular mycorrhizal fungus. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2009; 157:1613-1618. [PMID: 19168268 DOI: 10.1016/j.envpol.2008.12.022] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/10/2008] [Revised: 11/14/2008] [Accepted: 12/20/2008] [Indexed: 05/27/2023]
Abstract
Phenanthrene uptake by Medicago sativa L. was investigated under the influence of an arbuscular mycorrhizal fungus. Inoculation of lucerne with the arbuscular mycorrhizal fungus Glomus etunicatum L. resulted in higher phenanthrene accumulation in the roots and lower accumulation in the shoots compared to non-mycorrhizal controls. Studies on sorption and desorption of phenanthrene by roots and characterization of heterogeneity of mycorrhizal and non-mycorrhizal roots using solid-state (13)C nuclear magnetic resonance spectroscopy ((13)C NMR) demonstrated that increased aromatic components due to mycorrhizal inoculation resulted in enhanced phenanthrene uptake by the roots but lower translocation to the shoots. Direct visualization using two-photon excitation microscopy (TPEM) revealed higher phenanthrene accumulation in epidermal cells of roots and lower transport into the root interior and stem in mycorrhizal plants than in non-mycorrhizal controls. These results provide some insight into the mechanisms by which arbuscular mycorrhizal inoculation may influence the uptake of organic contaminants by plants.
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Affiliation(s)
- Naiying Wu
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Centre for Eco-Environmental Sciences, Chinese Academy of Sciences, PO Box 2871, Beijing 100085, China
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Almeida CMR, Dias AC, Mucha AP, Bordalo AA, Vasconcelos MTSD. Influence of surfactants on the Cu phytoremediation potential of a salt marsh plant. CHEMOSPHERE 2009; 75:135-140. [PMID: 19162294 DOI: 10.1016/j.chemosphere.2008.12.037] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/13/2008] [Revised: 12/15/2008] [Accepted: 12/16/2008] [Indexed: 05/27/2023]
Abstract
To assess the possible effect that surfactants commonly found in the aquatic environment may have on the remediation potential of the salt marsh plant Halimione portulacoides, a non-ionic (Triton X-100) and an anionic (sodium dodecyl sulfate, SDS) surfactants were used. Experiments were carried out in the laboratory, either in hydroponics (sediment elutriate) or in sediment soaked in elutriate, using sediment and water from an estuarine salt marsh (Cávado River, NW Portugal). Groups of H. portulacoides (grown in a greenhouse) were exposed for 6d to media with 0.16mM added Cu(II) in the absence and in the presence of each one of the two selected surfactants, at concentrations lower than the respective micellar critical concentration. Cu was determined in solutions, sediments and in different plant tissues before and after experiments. Plant photosynthetic efficiency did not indicate deletory effects of the exposure to the added pollutants. The non-ionic surfactant Triton X-100 and, to a lesser extent, the anionic surfactant SDS too, favored Cu accumulation in the plant roots but not Cu translocation, indicating that surfactants may favor Cu adsorption to the roots (phytostabilization). On the other hand, both surfactants favored Cu solubility from the sediment. Therefore, the presence of surfactants, which are frequently found in estuarine areas, as a result of urban and industrial effluent discharges, may condition metal distribution in those environments.
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Affiliation(s)
- C Marisa R Almeida
- CIMAR/CIIMAR - Centro Interdisciplinar de Investigação Marinha e Ambiental, Universidade do Porto, Portugal.
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Effect of anionic-nonionic mixed surfactant on ryegrass uptake of phenanthrene and pyrene from water. Sci Bull (Beijing) 2009. [DOI: 10.1007/s11434-009-0037-2] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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