1101
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Gonneau C, Mohanty SK, Dietterich LH, Hwang WT, Willenbring JK, Casper BB. Differential elemental uptake in three pseudo-metallophyte C 4 grasses in situ in the eastern USA. PLANT AND SOIL 2017; 416:149-163. [PMID: 28845059 PMCID: PMC5568086 DOI: 10.1007/s11104-017-3198-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/06/2016] [Accepted: 01/31/2017] [Indexed: 06/02/2023]
Abstract
BACKGROUND AND AIMS Elemental uptake in serpentine floras in eastern North America is largely unknown. The objective of this study was to determine major and trace element concentrations in soil and leaves of three native pseudo-metallophyte C4 grasses in situ at five sites with three very different soil types, including three serpentine sites, in eastern USA. METHODS Pseudo-total and extractible concentrations of 15 elements were measured and correlated from the soils and leaves of three species at the five sites. RESULTS Element concentrations in soils of pseudo-metallophytes varied up to five orders of magnitude. Soils from metalliferous sites exhibited higher concentrations of their characteristic elements than non-metalliferous. In metallicolous populations, elemental concentrations depended on the element. Concentrations of major elements (Ca, Mg, K) in leaves were lower than typical toxicity thresholds, whereas concentrations of Zn were higher. CONCLUSIONS In grasses, species can maintain relatively low metal concentrations in their leaves even when soil concentrations are richer. However, in highly Zn-contaminated soil, we found evidence of a threshold concentration above which Zn uptake increases drastically. Finally, absence of main characteristics of serpentine soil at one site indicated the importance of soil survey and restoration to maintain serpentinophytes communities and avoid soil encroachment.
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Affiliation(s)
- Cédric Gonneau
- Department of Biology, University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Sanjay K Mohanty
- Department of Earth and Environmental Science, University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Lee H Dietterich
- Department of Biology, University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Wei-Ting Hwang
- Department of Biostatistics and Epidemiology, University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Jane K Willenbring
- Department of Earth and Environmental Science, University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Brenda B Casper
- Department of Biology, University of Pennsylvania, Philadelphia, PA 19104, USA
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1102
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Arsenite phytoextraction and its influence on selected nutritional elements in one-year-old tree species. Microchem J 2017. [DOI: 10.1016/j.microc.2017.04.022] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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1103
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Madejón P, Marañón T, Navarro-Fernández CM, Domínguez MT, Alegre JM, Robinson B, Murillo JM. Potential of Eucalyptus camaldulensis for phytostabilization and biomonitoring of trace-element contaminated soils. PLoS One 2017; 12:e0180240. [PMID: 28666017 PMCID: PMC5493371 DOI: 10.1371/journal.pone.0180240] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2017] [Accepted: 06/12/2017] [Indexed: 01/26/2023] Open
Abstract
Soil pollution by trace elements (TEs) from mining and industrial activity is widespread and presents a risk to humans and ecosystems. The use of trees to immobilize TEs (phytostabilization) is a low-cost and effective method of soil remediation. We aimed to determine the chemical composition of leaves and flower buds of Eucalyptus camaldulensis in seven sites along the Guadiamar River valley (SW Spain), an area contaminated by a mine-spill in 1998. E. camaldulensis trees in the spill-affected area and adjacent non affected areas were growing on a variety of soils with pH from 5.6 to 8.1 with low concentration of plant nutrients. The spill affected soils contained up to 1069 mg kg-1 of As and 4086 mg kg-1 of Pb. E. camaldulensis tolerated elevated TE concentrations in soil and, compared to other species growing in the same environment, had low TE concentrations in the aerial portions. Besides tolerance to soil contamination, E. camaldulensis had low bioaccumulation coefficients for soil contaminants. TE concentrations in the aboveground portions were below levels reported to be toxic to plants or ecosystems. Flower buds had even lower TE concentrations than leaves. Despite the relatively low concentration of TEs in leaves they were significantly correlated with the soil extractable (0.01 M CaCl2) Cd, Mn and Zn (but not Cu and Pb). The general features of this tree species: tolerance to impoverished and contaminated soils, fast growth and deep root system, and low transfer of TEs from soil to aboveground organs makes it suitable for phytostabilization of soils contaminated by TEs. In addition, eucalyptus leaves could be used for biomonitoring the soil extractability of Cd, Mn and Zn but not Cu or Pb.
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Affiliation(s)
- Paula Madejón
- Instituto de Recursos Naturales y Agrobiología de Sevilla, IRNAS, Seville, Spain
- * E-mail:
| | - Teodoro Marañón
- Instituto de Recursos Naturales y Agrobiología de Sevilla, IRNAS, Seville, Spain
| | | | - María T. Domínguez
- Instituto de Recursos Naturales y Agrobiología de Sevilla, IRNAS, Seville, Spain
| | - José M. Alegre
- Instituto de Recursos Naturales y Agrobiología de Sevilla, IRNAS, Seville, Spain
| | - Brett Robinson
- Department of Soil and Physical Sciences, Lincoln University, Lincoln, Canterbury, New Zealand
| | - José M. Murillo
- Instituto de Recursos Naturales y Agrobiología de Sevilla, IRNAS, Seville, Spain
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1104
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Vijayaraghavan K, Arockiaraj J, Kamala-Kannan S. Portulaca grandiflora as green roof vegetation: Plant growth and phytoremediation experiments. INTERNATIONAL JOURNAL OF PHYTOREMEDIATION 2017; 19:537-544. [PMID: 27936895 DOI: 10.1080/15226514.2016.1267699] [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
Finding appropriate rooftop vegetation may improve the quality of runoff from green roofs. Portulaca grandiflora was examined as possible vegetation for green roofs. Green roof substrate was found to have low bulk density (360.7 kg/m3) and high water-holding capacity (49.4%), air-filled porosity (21.1%), and hydraulic conductivity (5270 mm/hour). The optimal substrate also supported the growth of P. grandiflora with biomass multiplication of 450.3% and relative growth rate of 0.038. Phytoextraction potential of P. grandiflora was evaluated using metal-spiked green roof substrate as a function of time and spiked substrate metal concentration. It was identified that P. grandiflora accumulated all metals (Al, Cd, Cr, Cu, Fe, Ni, Pb, and Zn) from metal-spiked green roof substrate. At the end of 40 days, P. grandiflora accumulated 811 ± 26.7, 87.2 ± 3.59, 416 ± 15.8, 459 ± 15.6, 746 ± 20.9, 357 ± 18.5, 565 ± 6.8, and 596 ± 24.4 mg/kg of Al, Cd, Cr, Cu, Fe, Ni, Pb and Zn, respectively. Results also indicated that spiked substrate metal concentration strongly influenced metal accumulation property of P. grandiflora with metal uptake increased and accumulation factor decreased with increase in substrate metal concentration. P. grandiflora also showed potential to translocate all the examined metals with translocation factor greater than 1 for Al, Cu, Fe, and Zn, indicating hyperaccumulation property.
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Affiliation(s)
- K Vijayaraghavan
- a Department of Chemical Engineering , Indian Institute of Technology Madras , Chennai , Tamil Nadu , India
| | - Jesu Arockiaraj
- b Division of Fisheries Biotechnology and Molecular Biology, Department of Biotechnology , Faculty of Science and Humanities, SRM University , Kattankulathur, Chennai , Tamil Nadu , India
| | - Seralathan Kamala-Kannan
- c Division of Biotechnology, Advanced Institute of Environment and Bioscience, College of Environmental and Bioresource Sciences , Chonbuk National University , Iksan , South Korea
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1105
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Lakra KC, Lal B, Banerjee TK. Decontamination of coal mine effluent generated at the Rajrappa coal mine using phytoremediation technology. INTERNATIONAL JOURNAL OF PHYTOREMEDIATION 2017; 19:530-536. [PMID: 27936868 DOI: 10.1080/15226514.2016.1267698] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/06/2016] [Revised: 11/26/2016] [Accepted: 11/27/2016] [Indexed: 06/06/2023]
Abstract
Toxicity of the effluent generated at the Rajrappa coal mine complex under the Central Coalfields Limited (CCL, a subsidiary of Coal India Limited) in Jharkhand, India was investigated. The concentrations (mg L-1) of all the toxic metals (Fe, Mn, Ni, Zn, Cu, Pb, Cr, and Cd) in the coal mine effluent were above the safe limit suggested by the Environmental Protection Agency (EPA 2003). Among these, Fe showed the highest concentration (18.21 ± 3.865), while Cr had the lowest effluent concentration (0.15 ± 0.014). Efforts were also made to detoxify the effluent using two species of aquatic macrophytes namely "'Salvinia molesta and Pistia stratiotes." After 10 days of phytoremediation, S. molesta removed Pb (96.96%) > Ni (97.01%) > Cu (96.77%) > Zn (96.38%) > Mn (96.22%) > Fe (94.12%) > Cr (92.85%) > Cd (80.99%), and P. stratiotes removed Pb (96.21%) > Fe (94.34%) > Ni (92.53%) > Mn (85.24%) > Zn (79.51%) > Cr (78.57%) > Cu (74.19%) > Cd (72.72%). The impact of coal mine exposure on chlorophyll content showed a significant decrease of 42.49% and 24.54% from control values in S. molesta and P. stratiotes, respectively, perhaps due to the damage inflicted by the toxic metals, leading to the decay of plant tissues.
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Affiliation(s)
- Kalpana C Lakra
- a Department of Zoology , Banaras Hindu University (BHU) , Varanasi , India
| | - B Lal
- a Department of Zoology , Banaras Hindu University (BHU) , Varanasi , India
| | - T K Banerjee
- a Department of Zoology , Banaras Hindu University (BHU) , Varanasi , India
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1106
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Mikołajczak P, Borowiak K, Niedzielski P. Phytoextraction of rare earth elements in herbaceous plant species growing close to roads. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2017; 24:14091-14103. [PMID: 28411316 PMCID: PMC5486614 DOI: 10.1007/s11356-017-8944-2] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/08/2016] [Accepted: 03/27/2017] [Indexed: 05/24/2023]
Abstract
The aim of study was to determine the phytoextraction of rare earth elements (REEs) to roots, stems and leaves of five herbaceous plant species (Achillea millefolium L., Artemisia vulgaris L., Papaver rhoeas L., Taraxacum officinale AND Tripleurospermum inodorum), growing in four areas located in close proximity to a road with varied traffic intensity. Additionally, the relationship between road traffic intensity, REE concentration in soil and the content of these elements in plant organs was estimated. A. vulgaris and P. rhoeas were able to effectively transport REEs in their leaves, independently of area collection. The highest content of REEs was observed in P. rhoeas leaves and T. inodorum roots. Generally, HREEs were accumulated in P. rhoeas roots and leaves and also in the stems of T. inodorum and T. officinale, whereas LREEs were accumulated in T. inodorum roots and T. officinale stems. It is worth underlining that there was a clear relationship between road traffic intensity and REE, HREE and LREE concentration in soil. No positive correlation was found between the concentration of these elements in soil and their content in plants, with the exception of T. officinale. An effective transport of REEs from the root system to leaves was observed, what points to the possible ability of some of the tested plant species to remove REEs from soils near roads.
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Affiliation(s)
- Patrycja Mikołajczak
- Department of Ecology and Environmental Protection, Poznan University of Life Sciences, Piątkowska 94C, 60-649, Poznań, Poland.
| | - Klaudia Borowiak
- Department of Ecology and Environmental Protection, Poznan University of Life Sciences, Piątkowska 94C, 60-649, Poznań, Poland
| | - Przemysław Niedzielski
- Faculty of Chemistry, Adam Mickiewicz University in Poznań, Umultowska 89B, 61-614, Poznań, Poland
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1107
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Bezerril Fontenele NM, Otoch MDLO, Gomes-Rochette NF, Sobreira ACDM, Barreto AAGC, de Oliveira FDB, Costa JH, Borges SDSS, do Nascimento RF, Fernandes de Melo D. Effect of lead on physiological and antioxidant responses in two Vigna unguiculata cultivars differing in Pb-accumulation. CHEMOSPHERE 2017; 176:397-404. [PMID: 28278428 DOI: 10.1016/j.chemosphere.2017.02.072] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/11/2016] [Revised: 02/07/2017] [Accepted: 02/13/2017] [Indexed: 06/06/2023]
Abstract
Lead (Pb) is one of the most toxic anthropogenic pollutants, occurring widely in both terrestrial and aquatic ecosystems, where it impairs plant growth and development. In this work, the effect of 0.5 mM EDTA-Pb was evaluated in two Vigna unguiculata cultivars (SV and SET), with the aim of detecting genotype/cultivar dependent changes in the physiological and anti-oxidant responses (CAT and APX) of a leguminous plant. The data showed that SV accumulated more Pb in roots while SET accumulated more in leaves, indicating differential regulation in Pb-translocation/accumulation. Lead affected the growth of SV less severely than SET, mainly associated with reduced inhibition in photosynthetic parameters. Furthermore, CAT and APX activities increased or were sustained at elevated levels in both cultivars in response to lead. However, gene expression analyses revealed that CAT1 was the main lead responsive gene in SET while CAT2 was more responsive in SV. APX1 was higher expressed in tissues with higher Pb-accumulation while APX2 was ubiquitously responsive to lead in both cultivars. Taken together, these results reveal differential ability of V. unguiculata cultivars in Pb-accumulation in different tissues affecting distinctly physiological and anti-oxidant responses. In addition, the existence of cultivars with predominant Pb-accumulation in aerial tissues invokes a need for studies to identify pollution-safe cultivars of leguminous plants to ensure food safety.
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Affiliation(s)
| | - Maria de Lourdes Oliveira Otoch
- Departamento de Bioquímica e Biologia Molecular, Universidade Federal do Ceará, Fortaleza, Ceará, Brasil; Universidade Estadual do Ceará, Fortaleza, Ceará, Brasil
| | - Neuza Félix Gomes-Rochette
- Departamento de Bioquímica e Biologia Molecular, Universidade Federal do Ceará, Fortaleza, Ceará, Brasil
| | - Alana Cecília de Menezes Sobreira
- Departamento de Bioquímica e Biologia Molecular, Universidade Federal do Ceará, Fortaleza, Ceará, Brasil; Universidade Estadual do Ceará, Fortaleza, Ceará, Brasil
| | | | | | - José Hélio Costa
- Departamento de Bioquímica e Biologia Molecular, Universidade Federal do Ceará, Fortaleza, Ceará, Brasil
| | | | | | - Dirce Fernandes de Melo
- Departamento de Bioquímica e Biologia Molecular, Universidade Federal do Ceará, Fortaleza, Ceará, Brasil.
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1108
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Cao Y, Ma C, Chen G, Zhang J, Xing B. Physiological and biochemical responses of Salix integra Thunb. under copper stress as affected by soil flooding. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2017; 225:644-653. [PMID: 28336092 DOI: 10.1016/j.envpol.2017.03.040] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/27/2017] [Revised: 03/14/2017] [Accepted: 03/18/2017] [Indexed: 06/06/2023]
Abstract
To explore the joint effect of copper (Cu) and flooding on Salix integra Thunb. (S. integra), the physiological and biochemical parameters of the seedlings grown in Cu amended soil (50, 150, 450 mg kg-1) with or without the flooding for 60 days were evaluated. The results suggested that the flooding significantly inhibited the root growth in terms of root length and root tips. The Cu exposures of 50 and 150 mg kg-1 notably enhanced the root growth as compared to the control. Majority of Cu was accumulated in S. integra roots, while flooding significantly reduced the Cu content, except the 150 mg kg-1 Cu treatment, but the iron (Fe) and manganese (Mn) content on the root surface were both markedly increased relative to non-flooded control. The malonaldehyde (MDA) and glutathione (GSH) contents in leaves showed a dose-response upon Cu exposure. Soil flooding enhanced the GSH level, which displayed 4.50-49.59% increases compared to its respective non-flooded treatment, while no difference was evident on MDA contents between the flooding and the non-flooded treatments. Both superoxide dismutase (SOD) and peroxidase (POD) activities were boosted while the catalase (CAT) was suppressed with increasing Cu exposure dose, and soil flooding reduced the POD and CAT activities. The elevated Cu level caused the evident increases of root calcium (Ca), potassium (K), and sulfur (S) concentrations and decreases of root phosphorus (P), sodium (Na), and zinc (Zn) concentrations. Soil flooding increased the concentrations of Fe, S, Na, Ca, and magnesium (Mg) in S. integra root. Taken together, our results suggested S. integra has high tolerance to the joint stress from Cu and flooding.
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Affiliation(s)
- Yini Cao
- Research Institute of Subtropical Forestry, Chinese Academy of Forestry, Hangzhou, Zhejiang 311400, China
| | - Chuanxin Ma
- Stockbridge School of Agriculture, University of Massachusetts, Amherst, MA 01003, United States; Department of Analytical Chemistry, The Connecticut Agricultural Experiment Station, New Haven, CT 06504, United States
| | - Guangcai Chen
- Research Institute of Subtropical Forestry, Chinese Academy of Forestry, Hangzhou, Zhejiang 311400, China.
| | - Jianfeng Zhang
- Research Institute of Subtropical Forestry, Chinese Academy of Forestry, Hangzhou, Zhejiang 311400, China
| | - Baoshan Xing
- Stockbridge School of Agriculture, University of Massachusetts, Amherst, MA 01003, United States
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1109
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Yang W, Zhang T, Lin S, Ni W. Distance-dependent varieties of microbial community structure and metabolic functions in the rhizosphere of Sedum alfredii Hance during phytoextraction of a cadmium-contaminated soil. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2017; 24:14234-14248. [PMID: 28421524 DOI: 10.1007/s11356-017-9007-4] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/07/2016] [Accepted: 04/07/2017] [Indexed: 06/07/2023]
Abstract
The recovery of microbial community and activities is crucial to the remediation of contaminated soils. Distance-dependent variations of microbial community composition and metabolic characteristics in the rhizospheric soil of hyperaccumulator during phytoextraction are poorly understood. A 12-month phytoextraction experiment with Sedum alfredii in a Cd-contaminated soil was conducted. A pre-stratified rhizobox was used for separating sub-layer rhizospheric (0-2, 2-4, 4-6, 6-8, 8-10 mm from the root mat)/bulk soils. Soil microbial structure and function were analyzed by phospholipid fatty acid (PLFA) and MicroResp™ methods. The concentrations of total and specified PLFA biomarkers and the utilization rates for the 14 substrates (organic carbon) in the 0-2-mm sub-layer rhizospheric soil were significantly increased, as well as decreased with the increase in the distance from the root mat. Microbial structure measured by the ratios of different groups of PLFAs such as fungal/bacterial, monounsaturated/saturated, ratios of Gram-positive to Gram-negative (GP/GN) bacterial, and cyclopropyl/monoenoic precursors and 19:0 cyclo/18:1ω7c were significantly changed in the 0-2-mm soil. The PLFA contents and substrate utilization rates were negatively correlated with pH and total, acid-soluble, and reducible fractions of Cd, while positively correlated with labile carbon. The dynamics of microbial community were likely due to root exudates and Cd uptake by S. alfredii. This study revealed the stimulations and gradient changes of rhizosphere microbial community through phytoextraction, as reduced Cd concentration, pH, and increased labile carbons are due to the microbial community responses.
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Affiliation(s)
- Wenhao Yang
- Fujian Provincial Key Laboratory of Soil Environmental Health and Regulation, College of Resources and Environment, Fujian Agriculture and Forestry University, Fuzhou, 350002, People's Republic of China
- College of Environmental and Resource Sciences, Key Laboratory of Agricultural Resource and Environment of Zhejiang Province, Zhejiang University, Hangzhou, 310058, People's Republic of China
| | - Taoxiang Zhang
- College of Forestry, Fujian Agriculture and Forestry University, Fuzhou, 350002, People's Republic of China
| | - Sen Lin
- College of Environmental and Resource Sciences, Key Laboratory of Agricultural Resource and Environment of Zhejiang Province, Zhejiang University, Hangzhou, 310058, People's Republic of China
| | - Wuzhong Ni
- College of Environmental and Resource Sciences, Key Laboratory of Agricultural Resource and Environment of Zhejiang Province, Zhejiang University, Hangzhou, 310058, People's Republic of China.
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1110
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Abstract
Phytoremediation is a promising technology that uses plants and their associated microbes to clean up contaminants from the environment. In recent years, phytoremediation assisted by plant growth-promoting bacteria (PGPB) has been highly touted for cleaning up toxic metals from soil. PGPB include rhizospheric bacteria, endophytic bacteria and the bacteria that facilitate phytoremediation by other means. This review provides information about the traits and mechanisms possessed by PGPB that improve plant metal tolerance and growth, and illustrate mechanisms responsible for plant metal accumulation/translocation in plants. Several recent examples of phytoremediation of metals facilitated by PGPB are reviewed. Although many encouraging results have been reported in the past years, there have also been numerous challenges encountered in phytoremediation in the field. To implement PGPB-assisted phytoremediation of metals in the natural environment, there is also a need to critically assess the ecological effects of PGPB, especially for those nonnative bacteria.
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Affiliation(s)
- Zhaoyu Kong
- School of Life Science, Key Laboratory of Poyang Lake Environment and Resource Utilization, Ministry of Education, Nanchang University, Nanchang, China.
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1111
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Hou D, Wang K, Liu T, Wang H, Lin Z, Qian J, Lu L, Tian S. Unique Rhizosphere Micro-characteristics Facilitate Phytoextraction of Multiple Metals in Soil by the Hyperaccumulating Plant Sedum alfredii. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2017; 51:5675-5684. [PMID: 28436673 DOI: 10.1021/acs.est.6b06531] [Citation(s) in RCA: 121] [Impact Index Per Article: 17.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/15/2023]
Abstract
Understanding the strategies that the roots of hyperaccumulating plants use to extract heavy metals from soils is important for optimizing phytoremediation. The rhizosphere characteristics of Sedum alfredii, a hyperaccumulator, were investigated 6 months after it had been planted in weathered field soils contaminated with 5.8 μg of Cd g-1, 1985.1 μg of Zn g-1, 667.5 μg of Pb g-1, and 698.8 μg of Cu g-1. In contrast with the non-hyperaccumulating ecotype (NHE), the hyperaccumulating ecotype (HE) of S. alfredii was more tolerant to the metals, and higher levels of Cd and Zn accumulated. The HE was characterized by a unique rhizosphere, including extensive root systems, a reduced soil pH, a higher metal bioavailability, and increased rhizomicrobial activity. The bioavailability of metals was significantly correlated with the HE's unique bacterial communities (P < 0.005). The HE harbored abundant Streptomyces (9.43%, family Streptomycetaceae), Kribbella (1.08%, family Nocardioidaceae), and an unclassified genus (1.09%, family Nocardioidaceae) in its rhizosphere, a composition that differed from that of the NHE. PICRUSt analysis predicted high relative abundances of imputed functional profiles in the HE rhizosphere related to membrane transport and amino acid metabolism. This study reveals the rhizosphere characteristics, particularly the unique bacterial rhizobiome of a hyperaccumulator, that might provide a new approach to facilitating heavy metal phytoextraction.
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Affiliation(s)
- Dandi Hou
- MOE Key Laboratory of Environmental Remediation and Ecological Health, College of Environmental and Resource Sciences, Zhejiang University , Hangzhou 310058, China
| | - Kai Wang
- School of Marine Sciences, Ningbo University , Ningbo 315211, China
| | - Ting Liu
- MOE Key Laboratory of Environmental Remediation and Ecological Health, College of Environmental and Resource Sciences, Zhejiang University , Hangzhou 310058, China
| | - Haixin Wang
- MOE Key Laboratory of Environmental Remediation and Ecological Health, College of Environmental and Resource Sciences, Zhejiang University , Hangzhou 310058, China
| | - Zhi Lin
- MOE Key Laboratory of Environmental Remediation and Ecological Health, College of Environmental and Resource Sciences, Zhejiang University , Hangzhou 310058, China
| | - Jie Qian
- School of Marine Sciences, Ningbo University , Ningbo 315211, China
| | - Lingli Lu
- MOE Key Laboratory of Environmental Remediation and Ecological Health, College of Environmental and Resource Sciences, Zhejiang University , Hangzhou 310058, China
| | - Shengke Tian
- MOE Key Laboratory of Environmental Remediation and Ecological Health, College of Environmental and Resource Sciences, Zhejiang University , Hangzhou 310058, China
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1112
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Idaszkin YL, Lancelotti JL, Pollicelli MP, Marcovecchio JE, Bouza PJ. Comparison of phytoremediation potential capacity of Spartina densiflora and Sarcocornia perennis for metal polluted soils. MARINE POLLUTION BULLETIN 2017; 118:297-306. [PMID: 28291544 DOI: 10.1016/j.marpolbul.2017.03.007] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/12/2016] [Revised: 02/22/2017] [Accepted: 03/06/2017] [Indexed: 06/06/2023]
Abstract
Phytoremediation is considered the most appropriate technique to restore metal polluted soil, given its low cost, high efficiency and low environmental impact. Spartina densiflora and Sarcocornia perennis are perennial halophytes growing under similar environmental conditions in San Antonio marsh (Patagonia Argentina), therefore it is interesting to compare their phytoremediation potential capacity. To this end, we compared concentrations of Pb, Zn, Cu, and Fe in soils and in below- and above-ground structures of S. perennis and S. densiflora. It was concluded that both species are able to inhabit Pb, Zn, and Cu polluted soils. Although Sarcocornia translocated more metals to the aerial structures than Spartina, both species translocated only when they were growing in soils with low metal concentrations. It seems that the plants translocate only a certain proportion of the metal contained in the soil. These results suggest that both species could be considered candidates to phytostabilize these metals in polluted soils.
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Affiliation(s)
- Yanina L Idaszkin
- Instituto Patagónico para el Estudio de los Ecosistemas Continentales (IPEEC-CONICET), Boulevard Brown 2915, U9120ACD Puerto Madryn, Chubut, Argentina; Universidad Nacional de la Patagonia San Juan Bosco, Boulevard Brown 3051, U9120ACD Puerto Madryn, Chubut, Argentina.
| | - Julio L Lancelotti
- Instituto Patagónico para el Estudio de los Ecosistemas Continentales (IPEEC-CONICET), Boulevard Brown 2915, U9120ACD Puerto Madryn, Chubut, Argentina
| | - María P Pollicelli
- Universidad Nacional de la Patagonia San Juan Bosco, Boulevard Brown 3051, U9120ACD Puerto Madryn, Chubut, Argentina
| | - Jorge E Marcovecchio
- Instituto Argentino de Oceanografía (IADO-CONICET), Camino La Carrindanga km 7,5-edificio E1, 8000 Bahía Blanca, Buenos Aires, Argentina
| | - Pablo J Bouza
- Instituto Patagónico para el Estudio de los Ecosistemas Continentales (IPEEC-CONICET), Boulevard Brown 2915, U9120ACD Puerto Madryn, Chubut, Argentina; Universidad Nacional de la Patagonia San Juan Bosco, Boulevard Brown 3051, U9120ACD Puerto Madryn, Chubut, Argentina
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1113
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Huang D, Gong X, Liu Y, Zeng G, Lai C, Bashir H, Zhou L, Wang D, Xu P, Cheng M, Wan J. Effects of calcium at toxic concentrations of cadmium in plants. PLANTA 2017; 245:863-873. [PMID: 28204874 DOI: 10.1007/s00425-017-2664-1] [Citation(s) in RCA: 101] [Impact Index Per Article: 14.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/13/2016] [Accepted: 02/09/2017] [Indexed: 06/06/2023]
Abstract
This review provides new insight that calcium plays important roles in plant growth, heavy metal accumulation and translocation, photosynthesis, oxidative damage and signal transduction under cadmium stress. Increasing heavy metal pollution problems have raised word-wide concerns. Cadmium (Cd), being a highly toxic metal, poses potential risks both to ecosystems and human health. Compared with conventional technologies, phytoremediation, being cost-efficient, highly stable and environment-friendly, is believed to be a promising green technology for Cd decontamination. However, Cd can be easily taken up by plants and may cause severe phytotoxicity to plants, thus limiting the efficiency of phytoremediation. Various researches are being done to investigate the effects of exogenous substances on the mitigation of Cd toxicity to plants. Calcium (Ca) is an essential plant macronutrient that involved in various plant physiological processes, such as plant growth and development, cell division, cytoplasmic streaming, photosynthesis and intracellular signaling transduction. Due to the chemical similarity between Ca and Cd, Ca may mediate Cd-induced physiological or metabolic changes in plants. Recent studies have shown that Ca could be used as an exogenous substance to protect plants against Cd stress by the alleviation of growth inhibition, regulation of metal uptake and translocation, improvement of photosynthesis, mitigation of oxidative damages and the control of signal transduction in the plants. The effects of Ca on toxic concentrations of Cd in plants are reviewed. This review also provides new insight that plants with enhanced Ca level have improved resistance to Cd stress.
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Affiliation(s)
- Danlian Huang
- College of Environmental Science and Engineering, Hunan University, Changsha, 410082, China.
- Key Laboratory of Environmental Biology and Pollution Control, Hunan University, Ministry of Education, Changsha, 410082, China.
| | - Xiaomin Gong
- College of Environmental Science and Engineering, Hunan University, Changsha, 410082, China
- Key Laboratory of Environmental Biology and Pollution Control, Hunan University, Ministry of Education, Changsha, 410082, China
| | - Yunguo Liu
- College of Environmental Science and Engineering, Hunan University, Changsha, 410082, China.
- Key Laboratory of Environmental Biology and Pollution Control, Hunan University, Ministry of Education, Changsha, 410082, China.
| | - Guangming Zeng
- College of Environmental Science and Engineering, Hunan University, Changsha, 410082, China
- Key Laboratory of Environmental Biology and Pollution Control, Hunan University, Ministry of Education, Changsha, 410082, China
| | - Cui Lai
- College of Environmental Science and Engineering, Hunan University, Changsha, 410082, China
- Key Laboratory of Environmental Biology and Pollution Control, Hunan University, Ministry of Education, Changsha, 410082, China
| | - Hassan Bashir
- College of Environmental Science and Engineering, Hunan University, Changsha, 410082, China
- Key Laboratory of Environmental Biology and Pollution Control, Hunan University, Ministry of Education, Changsha, 410082, China
| | - Lu Zhou
- College of Environmental Science and Engineering, Hunan University, Changsha, 410082, China
- Key Laboratory of Environmental Biology and Pollution Control, Hunan University, Ministry of Education, Changsha, 410082, China
| | - Dafei Wang
- College of Environmental Science and Engineering, Hunan University, Changsha, 410082, China
- Key Laboratory of Environmental Biology and Pollution Control, Hunan University, Ministry of Education, Changsha, 410082, China
| | - Piao Xu
- College of Environmental Science and Engineering, Hunan University, Changsha, 410082, China
- Key Laboratory of Environmental Biology and Pollution Control, Hunan University, Ministry of Education, Changsha, 410082, China
| | - Min Cheng
- College of Environmental Science and Engineering, Hunan University, Changsha, 410082, China
- Key Laboratory of Environmental Biology and Pollution Control, Hunan University, Ministry of Education, Changsha, 410082, China
| | - Jia Wan
- College of Environmental Science and Engineering, Hunan University, Changsha, 410082, China
- Key Laboratory of Environmental Biology and Pollution Control, Hunan University, Ministry of Education, Changsha, 410082, China
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1114
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Dai M, Lu H, Liu W, Jia H, Hong H, Liu J, Yan C. Phosphorus mediation of cadmium stress in two mangrove seedlings Avicennia marina and Kandelia obovata differing in cadmium accumulation. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2017; 139:272-279. [PMID: 28161586 DOI: 10.1016/j.ecoenv.2017.01.017] [Citation(s) in RCA: 45] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/24/2016] [Revised: 01/05/2017] [Accepted: 01/06/2017] [Indexed: 06/06/2023]
Abstract
Mangrove ecosystems are vulnerable to environmental threats. In order to elucidate the effect of phosphorus (P) on cadmium (Cd) tolerance and physiological responses in mangroves under Cd stress, a mangrove specie with salt exclusion Kandelia obovata and a specie with salt secretion Avicennia marina were compared in a hydroponic experiment. The results showed that most Cd was accumulated in mangrove roots and that P addition induced Cd immobilisation in them. Cd stress significantly increased malonaldehyde content, whereas P significantly decreased malonaldehyde in mangroves. Phosphorus positively regulated the photosynthetic pigment, proline content and synthesis of non-protein thiols, glutathione and phytochelatins in the leaves under Cd stress conditions. The results suggest different adaptive strategies adopted by two mangroves in a complex environment and A. marina showed a stronger Cd tolerance than K. obovata. The study provides a theoretical basis for P mediated detoxification of Cd in mangrove plants.
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Affiliation(s)
- Minyue Dai
- Key Laboratory of Ministry of Education for Coastal and Wetland Ecosystems, Xiamen University, Xiamen 361102, China
| | - Haoliang Lu
- Key Laboratory of Ministry of Education for Coastal and Wetland Ecosystems, Xiamen University, Xiamen 361102, China
| | - Wenwen Liu
- Key Laboratory of Ministry of Education for Coastal and Wetland Ecosystems, Xiamen University, Xiamen 361102, China
| | - Hui Jia
- Key Laboratory of Ministry of Education for Coastal and Wetland Ecosystems, Xiamen University, Xiamen 361102, China
| | - Hualong Hong
- Key Laboratory of Ministry of Education for Coastal and Wetland Ecosystems, Xiamen University, Xiamen 361102, China
| | - Jingchun Liu
- Key Laboratory of Ministry of Education for Coastal and Wetland Ecosystems, Xiamen University, Xiamen 361102, China
| | - Chongling Yan
- Key Laboratory of Ministry of Education for Coastal and Wetland Ecosystems, Xiamen University, Xiamen 361102, China; State Key Laboratory of Marine Environmental Science, Xiamen University, Xiamen 361102, China.
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1115
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Aderholt M, Vogelien DL, Koether M, Greipsson S. Phytoextraction of contaminated urban soils by Panicum virgatum L. enhanced with application of a plant growth regulator (BAP) and citric acid. CHEMOSPHERE 2017; 175:85-96. [PMID: 28211339 DOI: 10.1016/j.chemosphere.2017.02.022] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/04/2016] [Revised: 01/05/2017] [Accepted: 02/03/2017] [Indexed: 05/08/2023]
Abstract
Lead (Pb) contamination in soil represents a threat to human health. Phytoextraction has gained attention as a potential alternative to traditional remediation methods because of lower cost and minimal soil disruption. The North American native switchgrass (Panicum virgatum L.) was targeted due to its ability to produce high biomass and grow across a variety of ecozones. In this study switchgrass was chemically enhanced with applications of the soil-fungicide benomyl, chelates (EDTA and citric acid), and PGR to optimize phytoextraction of Pb and zinc (Zn) from contaminated urban soils in Atlanta, GA. Exogenous application of two plant hormones was compared in multiple concentrations to determine effects on switchgrass growth: indole-3-acetic acid (IAA), and Gibberellic Acid (GA3), and one PGR benzylaminopurine (BAP), The PGR BAP (1.0 μM) was found to generate a 48% increase in biomass compared to Control plants. Chemical application of citric acid, EDTA, benomyl, and BAP were tested separately and in combination in a pot experiment in an environmentally controlled greenhouse to determine the efficacy of phtyoextraction by switchgrass. Soil acidification by citric acid application resulted in highest level of aluminum (Al) and iron (Fe) in plants foliage resulting in severe phytotoxic effects. Total Pb phytoextraction was significantly highest in plants treated with combined chemical application of B + C and B + C + H. Suppression of AMF activities by benomyl application significantly increased concentrations of Al and Fe in roots. Application of benomyl reduced AMF colonization but was also shown to dramatically increase levels of septa fungi infection as compared to Control plants.
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Affiliation(s)
- Matthew Aderholt
- Georgia Highlands College, Cartersville Campus, 5441 Highway 20 NE, Cartersville, GA 30121, USA; Department of Ecology, Evolution, and Organismal Biology, Kennesaw State University, 370 Paulding Ave. NW, Kennesaw, GA 30144, USA
| | - Dale L Vogelien
- Department of Molecular and Cellular Biology, Kennesaw State University, 370 Paulding Ave. NW, Kennesaw, GA 30144, USA
| | - Marina Koether
- Department of Chemistry and Biochemistry, Kennesaw State University, 370 Paulding Ave. NW, Kennesaw, GA 30144, USA
| | - Sigurdur Greipsson
- Department of Ecology, Evolution, and Organismal Biology, Kennesaw State University, 370 Paulding Ave. NW, Kennesaw, GA 30144, USA.
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1116
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Li H, Luo N, Li YW, Cai QY, Li HY, Mo CH, Wong MH. Cadmium in rice: Transport mechanisms, influencing factors, and minimizing measures. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2017; 224:622-630. [PMID: 28242254 DOI: 10.1016/j.envpol.2017.01.087] [Citation(s) in RCA: 241] [Impact Index Per Article: 34.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/09/2016] [Revised: 01/09/2017] [Accepted: 01/22/2017] [Indexed: 05/28/2023]
Abstract
Cadmium (Cd) accumulation in rice and its subsequent transfer to food chain is a major environmental issue worldwide. Understanding of Cd transport processes and its management aiming to reduce Cd uptake and accumulation in rice may help to improve rice growth and grain quality. Moreover, a thorough understanding of the factors influencing Cd accumulation will be helpful to derive efficient strategies to minimize Cd in rice. In this article, we reviewed Cd transport mechanisms in rice, the factors affecting Cd uptake (including physicochemical characters of soil and ecophysiological features of rice) and discussed efficient measures to immobilize Cd in soil and reduce Cd uptake by rice (including agronomic practices, bioremediation and molecular biology techniques). These findings will contribute to ensuring food safety, and reducing Cd risk on human beings.
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Affiliation(s)
- Hui Li
- Guangdong Provincial Research Center for Environment Pollution Control and Remediation Materials, Guangzhou Key Laboratory of Environmental Exposure and Health, School of Environment, Jinan University, Guangzhou 510632, PR China
| | - Na Luo
- Guangdong Provincial Research Center for Environment Pollution Control and Remediation Materials, Guangzhou Key Laboratory of Environmental Exposure and Health, School of Environment, Jinan University, Guangzhou 510632, PR China
| | - Yan Wen Li
- Guangdong Provincial Research Center for Environment Pollution Control and Remediation Materials, Guangzhou Key Laboratory of Environmental Exposure and Health, School of Environment, Jinan University, Guangzhou 510632, PR China
| | - Quan Ying Cai
- Guangdong Provincial Research Center for Environment Pollution Control and Remediation Materials, Guangzhou Key Laboratory of Environmental Exposure and Health, School of Environment, Jinan University, Guangzhou 510632, PR China
| | - Hui Yuan Li
- Guangdong Provincial Research Center for Environment Pollution Control and Remediation Materials, Guangzhou Key Laboratory of Environmental Exposure and Health, School of Environment, Jinan University, Guangzhou 510632, PR China
| | - Ce Hui Mo
- Guangdong Provincial Research Center for Environment Pollution Control and Remediation Materials, Guangzhou Key Laboratory of Environmental Exposure and Health, School of Environment, Jinan University, Guangzhou 510632, PR China.
| | - Ming Hung Wong
- Consortium on Environment, Health, Education and Research (CHEER), Department of Science and Environmental Studies, The Education University of Hong Kong, Tai Po, Hong Kong Special Administrative Region.
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1117
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Cicatelli A, Guarino F, Castiglione S. Reclamation of Cr-contaminated or Cu-contaminated agricultural soils using sunflower and chelants. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2017; 24:10131-10138. [PMID: 28258429 DOI: 10.1007/s11356-017-8655-8] [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] [Received: 09/05/2016] [Accepted: 02/19/2017] [Indexed: 06/06/2023]
Abstract
Chromium (Cr) and copper (Cu) are pollutants with a strong environmental impact. "Green biotechnology" as phytoremediation represents a sustainability opportunity for soil reclamation. In this study, we evaluated the possibility to reclaim agricultural soils located in the Solofrana valley, contaminated by Cr or Cu. Chromium contamination derives by repeated flooding events of Solofrana rivers containing Cr because of leather tanning plants, while Cu soil pollution was due to the use of Cu-rich pesticides in agriculture. Both metals showed a very low bioavailability. In order to perform an assisted phytoremediation of polluted fields, we carried out a preliminary ex situ experimentation testing for the first time sunflowers (cv. Pretor) and chelants (ethylenediaminetetraacetic acid (EDTA) and/or ethylene diamine disuccinate (EDDS)), useful when metal bioavailability is low. No symptoms of toxicity were observed in sunflowers grown on both soils, while biomass was improved when EDDS was added. Cr and Cu bioavailability was only slightly enhanced by chelants at the end of the treatments. Both Cr and Cu were mainly accumulated in the roots; moreover, Cu was also translocated to the aboveground organs in the presence of EDTA. The ex situ experimentation demonstrated that assisted phytoremediation is a very slow process not useful in the case of persistent pollution.
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Affiliation(s)
- Angela Cicatelli
- Dipartimento di Chimica e Biologia "A. Zambelli", Università di Salerno, Via Giovanni Paolo II 132, 84084, Fisciano, Salerno, Italy
| | - Francesco Guarino
- Dipartimento di Chimica e Biologia "A. Zambelli", Università di Salerno, Via Giovanni Paolo II 132, 84084, Fisciano, Salerno, Italy
| | - Stefano Castiglione
- Dipartimento di Chimica e Biologia "A. Zambelli", Università di Salerno, Via Giovanni Paolo II 132, 84084, Fisciano, Salerno, Italy.
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1118
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Cobbina SJ, Mao G, Zhao T, Xu H, Zhang Z, Liu H, Zou Y, Wu X, Yang L. Modulation of N-Methyl-D-Aspartate Receptors (NMDAR), Bcl-2 and C-Fos Gene Expressions on Exposure to Individual and Mixtures of Low Concentration Metals in Zebrafish (Danio rerio). ARCHIVES OF ENVIRONMENTAL CONTAMINATION AND TOXICOLOGY 2017; 72:418-427. [PMID: 28255683 DOI: 10.1007/s00244-016-0352-y] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/01/2016] [Accepted: 12/21/2016] [Indexed: 06/06/2023]
Abstract
Currently, there is limited information on the toxicity of low concentration of metal mixtures in the environment. Of particular interest is the effect of low levels of metal mixtures on neurodevelopment of aquatic organisms. This study reports the neurological gene expressions after exposing zebrafish embryos to low concentration toxic heavy metals, 120 h post fertilization (hpf). Embryos were exposed to low concentration individual and mixtures of lead (Pb), mercury (Hg), arsenic (As), and cadmium (Cd). Quantitative real-time PCR was used to assess gene expressions. The findings of this study confirmed that exposure to low concentration heavy metals upregulated N-methyl-D-aspartate (NMDA) receptor subunits NMDAR2A (NR2A), NMDAR2B (NR2B), and NMDAR2D (NR2D) and B cell lymphoma (Bcl-2) genes. NR2A genes were significantly upregulated by 90 and 74%, respectively, on exposure to Pb + As and Pb + Cd. NR2B genes were upregulated by 85.3, 68.6, 62.7, and 62.7% on exposure to As, Pb + Hg, Pb + As, and Pb + Cd, respectively. Exposure to As, Pb + Cd, and Pb + Hg + As significantly upregulated Bcl-2 genes by 2.01-, 1.84-, and 1.80-fold, respectively. NR1A and C-fos gene expressions were not significantly different from control. Upregulation of NMDAR subunits and Bcl-2 genes in this study was largely a counter measure against insults from exposure to low concentration heavy metals. Principal component analysis confirmed the influence of low concentration individual and mixtures of Pb, Hg, As, and Cd on gene expression of NMDAR subunits and Bcl-2. These data suggest that altered expression of NMDA receptor subunits and Bcl-2 genes may explain toxicity of low concentration individual and mixtures of Pb, Hg, As, and Cd.
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Affiliation(s)
- Samuel Jerry Cobbina
- School of the Environment and Safety Engineering, Jiangsu University, Xuefu Rd. 301, Zhenjiang, 212013, Jiangsu, China
| | - Guanghua Mao
- School of the Environment and Safety Engineering, Jiangsu University, Xuefu Rd. 301, Zhenjiang, 212013, Jiangsu, China
| | - Ting Zhao
- School of Chemistry and Chemical Engineering, Jiangsu University, Xuefu Rd. 301, Zhenjiang, 212013, China
| | - Hai Xu
- School of the Environment and Safety Engineering, Jiangsu University, Xuefu Rd. 301, Zhenjiang, 212013, Jiangsu, China
| | - Zhen Zhang
- School of the Environment and Safety Engineering, Jiangsu University, Xuefu Rd. 301, Zhenjiang, 212013, Jiangsu, China
| | - Hongyang Liu
- School of the Environment and Safety Engineering, Jiangsu University, Xuefu Rd. 301, Zhenjiang, 212013, Jiangsu, China
| | - Yanmin Zou
- School of the Environment and Safety Engineering, Jiangsu University, Xuefu Rd. 301, Zhenjiang, 212013, Jiangsu, China
| | - Xiangyang Wu
- School of the Environment and Safety Engineering, Jiangsu University, Xuefu Rd. 301, Zhenjiang, 212013, Jiangsu, China.
| | - Liuqing Yang
- School of Chemistry and Chemical Engineering, Jiangsu University, Xuefu Rd. 301, Zhenjiang, 212013, China
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1119
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ALI A, GUO D, MAHAR A, WANG P, SHEN F, LI R, ZHANG Z. Mycoremediation of Potentially Toxic Trace Elements—a Biological Tool for Soil Cleanup: A Review. PEDOSPHERE 2017; 27:205-222. [DOI: 10.1016/s1002-0160(17)60311-4] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/20/2023]
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1120
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Zhang H, Gao Y, Xiong H. Removal of heavy metals from polluted soil using the citric acid fermentation broth: a promising washing agent. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2017; 24:9506-9514. [PMID: 28238181 DOI: 10.1007/s11356-017-8660-y] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/28/2016] [Accepted: 02/19/2017] [Indexed: 06/06/2023]
Abstract
The citric acid fermentation broth was prepared and it was employed to washing remediation of heavy metal-polluted soil. A well-defined washing effect was obtained, the removal percentages using citric acid fermentation broth are that 48.2% for Pb, 30.6% for Cu, 43.7% for Cr, and 58.4% for Cd and higher than that using citric acid solution. The kinetics of heavy metals desorption can be described by the double constant equation and Elovich equation and is a heterogeneous diffusion process. The speciation analysis shows that the citric acid fermentation broth can effectively reduce bioavailability and environmental risk of heavy metals. Spectroscopy characteristics analysis suggests that the washing method has only a small effect on the mineral composition and does not destroy the framework of soil system. Therefore, the citric acid fermentation broth is a promising washing agent and possesses a potential practical application value in the field of remediation of soils with a good washing performance.
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Affiliation(s)
- Hongjiao Zhang
- Key Laboratory of Comprehensive Utilization of Mineral Resources in Ethnic Regions, Yunnan Minzu University, Kunming, 650500, People's Republic of China
- Joint Research Centre for International Cross-border Ethnic Regions Biomass Clean Utilization in Yunnan, Yunnan Minzu University, Kunming, 650500, People's Republic of China
| | - Yuntao Gao
- Key Laboratory of Comprehensive Utilization of Mineral Resources in Ethnic Regions, Yunnan Minzu University, Kunming, 650500, People's Republic of China.
- Joint Research Centre for International Cross-border Ethnic Regions Biomass Clean Utilization in Yunnan, Yunnan Minzu University, Kunming, 650500, People's Republic of China.
| | - Huabin Xiong
- Key Laboratory of Comprehensive Utilization of Mineral Resources in Ethnic Regions, Yunnan Minzu University, Kunming, 650500, People's Republic of China
- Joint Research Centre for International Cross-border Ethnic Regions Biomass Clean Utilization in Yunnan, Yunnan Minzu University, Kunming, 650500, People's Republic of China
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1121
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Radwanski D, Gallagher F, Vanderklein DW, Schäfer KVR. Photosynthesis and aboveground carbon allocation of two co-occurring poplar species in an urban brownfield. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2017; 223:497-506. [PMID: 28139323 DOI: 10.1016/j.envpol.2017.01.051] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/31/2016] [Revised: 01/17/2017] [Accepted: 01/17/2017] [Indexed: 06/06/2023]
Abstract
Phytoremediation, a technique used to reclaim heavy metal-contaminated soils, requires an understanding of plant physiological responses to heavy metals. However, the majority of studies documenting heavy metal impact on plant functioning have been performed in laboratory or greenhouse settings. We predicted that increased soil heavy metal concentrations reduce photosynthesis and biomass production in trees growing in metal contaminated soil in a naturally re-vegetated urban brownfield. Leaf gas exchange, leaf carbon and nitrogen concentration, and tree biomass were recorded and compared for Populus deltoides and Populus tremuloides growing in an urban brownfield. The CO2 compensation point (CCP) differed significantly between soil metal concentrations and species, with P. deltoides displaying a greater CCP and P. tremuloides displaying a lower CCP as soil metal concentration increased, despite no changes in dark respiration for either species. In terms of biomass, only total branch weight (TBW) and leaf area (LA) differed significantly between soil metal concentrations, though the difference was largely attributable to variation in diameter at breast height (DBH). Furthermore, TBW and LA values for P. deltoides did not decrease with increasing soil metal concentration. Soil metal concentration, thus, had minimal effect on the relationship between tree age and DBH, and no effect on relationships of tree age and height or LA, respectively. Significant differences between soil metal concentrations and species were found for δ15N (isotopic nitrogen ratio) while leaf nitrogen content (% N) also differed significantly between species. Long-term water use efficiency derived from carbon isotope analysis (iWUEisotope) differed significantly between trees grown on different soil metal concentrations and a significant species-metal concentration interaction was detected indicating that the two study species responded differentially to the soil metal concentrations. Specifically, P. tremuloides enhanced while P. deltoides reduced long-term iWUEisotope as soil metal concentration increased, further emphasizing the importance of species and possible genotype selection for phytoremediation.
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Affiliation(s)
- Diane Radwanski
- Department of Biological Sciences, Rutgers University, Newark, NJ, United States
| | - Frank Gallagher
- Department of Landscape Architecture, Rutgers University, New Brunswick, NJ, United States
| | - Dirk W Vanderklein
- Department of Biology, Montclair State University, Montclair, NJ, United States
| | - Karina V R Schäfer
- Department of Biological Sciences, Rutgers University, Newark, NJ, United States; Earth and Environmental Science Department, Rutgers University, Newark, NJ, United States.
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1122
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Guo L, Cutright TJ. Metal storage in reeds from an acid mine drainage contaminated field. INTERNATIONAL JOURNAL OF PHYTOREMEDIATION 2017; 19:254-261. [PMID: 27484518 DOI: 10.1080/15226514.2016.1216073] [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
Phragmites australis has been used to treat acid mine drainage (AMD)-contaminated soil. However, the mechanism about metal translocation in reeds was not widely reported. This study investigated metal (Fe, Al, and Mn) storage location in reeds grown in five different sampling sites of an AMD field. As expected, the more metals in soil, the more metals entered the belowground organs of plants. Reeds grown in soils with the highest levels of metals accumulated 0.16 ± 0.04 mg/g Mn, 16.29 ± 4.15 mg/g Fe, and 1.31 ± 0.22 mg/g Al in roots. Most of the iron was sequestered in the roots, while Al was transferred to the shoots. Histological staining found that most of the iron was sequestered in the exodermis, while Al extended the endodermis of roots. Al even entered the stele of roots grown in soil with higher Al levels. The epidermis, cortex, and central cylinder of rhizomes were the main tissues for Fe and Al storage. The more metals in rhizomes, the stronger intensity of the staining was observed around the vascular systems of rhizomes. No structural difference was observed among reeds collected from different sites. Further studies may be needed to enhance the transfer of metals in reeds and increase the phytoremediation efficiency.
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Affiliation(s)
- Lin Guo
- a Department of Biological and Environmental Sciences , Texas A&M University-Commerce , Commerce , TX , USA
| | - Teresa J Cutright
- b Auburn Science and Engineering Center (ASEC), The University of Akron , OH , USA
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1123
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Arreghini S, de Cabo L, Serafini R, de Iorio AF. Effect of the combined addition of Zn and Pb on partitioning in sediments and their accumulation by the emergent macrophyte Schoenoplectus californicus. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2017; 24:8098-8107. [PMID: 28144860 DOI: 10.1007/s11356-017-8478-7] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/05/2016] [Accepted: 01/18/2017] [Indexed: 06/06/2023]
Abstract
Wetlands usually provide a natural mechanism that diminishes the transport of toxic compounds to other compartments of the ecosystem by immobilization and accumulation in belowground tissues and/or soil. This study was conducted to assess the ability of Schoenoplectus californicus growing in natural marsh sediments, with zinc and lead addition, to tolerate and accumulate these metals, taking account of the metal distribution in the sediment fractions. The Zn and Pb were mainly found in available (exchangeable) and potentially available (bound to organic matter) forms, respectively. The absorption of Zn and Pb by plants increased in sediments with added metals. Both metals were largely retained in roots (translocation factor < 1). Lead rhizome concentrations only increased significantly in treatments with high doses of metal independently of added Zn. The addition of Zn increased its concentration in roots and shoots significantly, while its concentration in rhizomes only increased when both metals were added together. Zinc concentration in shoots did not reach the toxic level for plants. Zinc and Pb concentrations in roots were high, but they were not sufficient to reduce biomass growth.
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Affiliation(s)
- Silvana Arreghini
- Universidad de Buenos Aires, Facultad de Agronomía, Cátedra de Química Analítica, Av. San Martín 4453, C1417DSE, Buenos Aires, Argentina.
| | - Laura de Cabo
- CONICET-Museo Argentino de Ciencias Naturales "Bernardino Rivadavia", Av. A. Gallardo 470, C1405DJR, Buenos Aires, Argentina
| | - Roberto Serafini
- Universidad de Buenos Aires, Facultad de Agronomía, Cátedra de Química Analítica, Av. San Martín 4453, C1417DSE, Buenos Aires, Argentina
| | - Alicia Fabrizio de Iorio
- Universidad de Buenos Aires, Facultad de Agronomía, Cátedra de Química Analítica, Av. San Martín 4453, C1417DSE, Buenos Aires, Argentina
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1124
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Cicatelli A, Guarino F, Baldan E, Castiglione S. Genetic and biochemical characterization of rhizobacterial strains and their potential use in combination with chelants for assisted phytoremediation. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2017; 24:8866-8878. [PMID: 27822692 DOI: 10.1007/s11356-016-7982-5] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/02/2016] [Accepted: 10/24/2016] [Indexed: 06/06/2023]
Abstract
Copper and zinc are essential micronutrients in plants but, at high concentrations, they are toxic. Assisted phytoremediation is an emerging "green" technology that aims to improve the efficiency of tolerant species to remove metals from soils through the use of chelants or microorganisms. Rhizobacteria can promote plant growth and tolerance and also affect the mobility, bioavailability, and complexation of metals. A pot experiment was conducted to evaluate the phytoremediation effectiveness of sunflowers cultivated in a Cu- and Zn-spiked soil, in the presence or absence of bacterial consortium and/or chelants. The consortium was constituted of two Stenotrophomonas maltophilia strains and one of Agrobacterium sp. These strains were previously isolated from the rhizosphere of maize plants cultivated on a metal-polluted soil and here molecularly and biochemically characterized. Results showed that the consortium improved sunflower growth and biomass production on the spiked soils. Sunflowers accumulated large amounts of metals in their roots and leaves; however, neither the bacterial consortium nor the chelants, singularly added to pots, influenced significantly Cu and Zn plant uptake. Furthermore, the consecutive soil amendment with the EDTA and bacterial consortium determined a consistent accumulation of metals in sunflowers, and it might be an alternative strategy to limit the use of EDTA and its associated environmental risks in phytoremediation.
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Affiliation(s)
- Angela Cicatelli
- Dipartimento di Chimica e Biologia "A. Zambelli", Università di Salerno, Fisciano, 84084, Salerno, Italy
| | - Francesco Guarino
- Dipartimento di Chimica e Biologia "A. Zambelli", Università di Salerno, Fisciano, 84084, Salerno, Italy
| | - Enrico Baldan
- Dipartimento di Biologia, Università di Padova, 35131, Padova, Italy
| | - Stefano Castiglione
- Dipartimento di Chimica e Biologia "A. Zambelli", Università di Salerno, Fisciano, 84084, Salerno, Italy.
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1125
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Sarwar N, Imran M, Shaheen MR, Ishaque W, Kamran MA, Matloob A, Rehim A, Hussain S. Phytoremediation strategies for soils contaminated with heavy metals: Modifications and future perspectives. CHEMOSPHERE 2017; 171:710-721. [PMID: 28061428 DOI: 10.1016/j.chemosphere.2016.12.116] [Citation(s) in RCA: 522] [Impact Index Per Article: 74.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/04/2016] [Revised: 11/27/2016] [Accepted: 12/22/2016] [Indexed: 05/19/2023]
Abstract
Presence of heavy metals in agricultural soils is of major environmental concern and a great threat to life on the earth. A number of human health risks are associated with heavy metals regarding their entry into food chain. Various physical, chemical and biological techniques are being used to remove heavy metals and metalloids from soils. Among them, phytoremediation is a good strategy to harvest heavy metals from soils and have been proven as an effective and economical technique. In present review, we discussed various sources and harmful effects of some important heavy metals and metalloids, traditional phytoremediation strategies, mechanisms involved in phytoremediation of these metals, limitations and some recent advances in phytoremediation approaches. Since traditional phytoremediation approach poses some limitations regarding their applications at large scale, so there is a dire need to modify this strategy using modern chemical, biological and genetic engineering tools. In view of above, the present manuscript brings both traditional and advanced phytoremediation techniques together in order to compare, understand and apply these strategies effectively to exclude heavy metals from soil keeping in view the economics and effectiveness of phytoremediation strategies.
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Affiliation(s)
- Nadeem Sarwar
- Nuclear Institute for Agriculture and Biology (NIAB), Faisalabad, Pakistan
| | - Muhammad Imran
- Department of Soil Science, Bahauddin Zakariya University, Multan, Pakistan.
| | - Muhammad Rashid Shaheen
- Department of Horticultural Sciences, University College of Agriculture and Environmental Sciences, The Islamia University of Bahawalpur, Pakistan
| | - Wajid Ishaque
- Nuclear Institute for Agriculture and Biology (NIAB), Faisalabad, Pakistan
| | | | - Amar Matloob
- Department of Agronomy, Muhammad Nawaz Shareef University of Agriculture, Multan, Pakistan
| | - Abdur Rehim
- Department of Soil Science, Bahauddin Zakariya University, Multan, Pakistan
| | - Saddam Hussain
- College of Resources and Environment, Huazhong Agricultural University, Wuhan, Hubei, China; Department of Agronomy, University of Agriculture, Faisalabad, Pakistan.
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1126
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Li S, Zhang T, Li J, Shi L, Zhu X, Lü J, Li Y. Stabilization of Pb(II) accumulated in biomass through phosphate-pretreated pyrolysis at low temperatures. JOURNAL OF HAZARDOUS MATERIALS 2017; 324:464-471. [PMID: 27863797 DOI: 10.1016/j.jhazmat.2016.11.014] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/15/2016] [Revised: 10/16/2016] [Accepted: 11/04/2016] [Indexed: 06/06/2023]
Abstract
The remediation of heavy metal-contaminated soil and water using plant biomass is considered to be a green technological approach, although the harmless disposal of biomass accumulated with heavy metals remains a challenge. A potential solution to this problem explored in this work involves combining phosphate pretreatment with pyrolysis. Pb(II) was accumulated in celery biomass with superior sorption capacity and also in ordinary wood biomass through biosorption. The Pb(II)-impregnated biomass was then pretreated with phosphoric acid or calcium dihydrogen phosphate (CaP) and pyrolyzed at 350 or 450°C. Pb(II) from biomass was in turn almost totally retained in chars, and the percentage of DTPA-extractable Pb(II) was reduced to less than 5% of total Pb(II) in chars through CaP pretreatment. Pb(II) stabilization was further confirmed through a sequential extraction test, which showed that more than 95% of Pb(II) was converted into stable species composed mainly of lead phosphates according to X-ray diffraction (XRD) and scanning electron microscopy/energy-dispersive X-ray spectroscopy (SEM/EDX) analyses. Overall, phosphate-pretreated pyrolysis can stabilize both Pb(II) and degradable biomass, so as to control efficiently the hazards of heavy metal-contaminated biomass.
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Affiliation(s)
- Saijun Li
- College of Chemistry & Chemical Engineering, Shaoxing University, Shaoxing, Zhejiang, 312000, China
| | - Tao Zhang
- College of Chemistry & Chemical Engineering, Shaoxing University, Shaoxing, Zhejiang, 312000, China
| | - Jianfa Li
- College of Chemistry & Chemical Engineering, Shaoxing University, Shaoxing, Zhejiang, 312000, China.
| | - Lingna Shi
- College of Chemistry & Chemical Engineering, Shaoxing University, Shaoxing, Zhejiang, 312000, China
| | - Xiaoxiao Zhu
- College of Chemistry & Chemical Engineering, Shaoxing University, Shaoxing, Zhejiang, 312000, China
| | - Jinhong Lü
- College of Chemistry & Chemical Engineering, Shaoxing University, Shaoxing, Zhejiang, 312000, China
| | - Yimin Li
- College of Chemistry & Chemical Engineering, Shaoxing University, Shaoxing, Zhejiang, 312000, China
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1127
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Podder MS, Majumder CB. Toxicity and bioremediation of As(III) and As(V) in the green microalgae Botryococcus braunii: A laboratory study. INTERNATIONAL JOURNAL OF PHYTOREMEDIATION 2017; 19:157-173. [PMID: 27409153 DOI: 10.1080/15226514.2016.1207601] [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
Worldwide threats of fuel shortages in the near future and climate change because of greenhouse gas emissions are posing severe challenges and therefore it is vital to search for sustainable ways of preventing the consequences. The dual use of microalgae for phycoremediation and biomass production for sustainable biofuel production is a viable choice. Phycoremediation of As(III) and As(V) ions using microalgae was investigated in a two-staged batch reactor. Accumulation and toxicity of inorganic arsenic forms (As(III) and As(V)) to green microalgae Botryococcus braunii depend on environmental factors. Dissolved oxygen and pH cycles did not significantly differ due to the absence or presence of arsenic (either As(III) or As(V)) ions in the culture. Monod model was utilized for representing the growth kinetics of microalgae in pure media containing various concentrations of nitrate ions. Maximum specific growth rate and saturation constant were found to be 0.14788 d-1 and 0.00105 g/L, respectively. With the increase in concentration of phosphate in growth medium, the growth of microalgae increased. Media with NaCl (1.0 g/L) and NaHCO3 (1 g/L) resulted in higher maximum biomass concentration. Effect of coexisting ions on phycoremediation of As(III) and As(V) ions using microalgae was studied.
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Affiliation(s)
- M S Podder
- a Department of Chemical Engineering , Indian Institute of Technology , Roorkee , India
| | - C B Majumder
- a Department of Chemical Engineering , Indian Institute of Technology , Roorkee , India
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1128
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Polechońska L, Samecka-Cymerman A, Dambiec M. Changes in growth rate and macroelement and trace element accumulation in Hydrocharis morsus-ranae L. during the growing season in relation to environmental contamination. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2017; 24:5439-5451. [PMID: 28028700 DOI: 10.1007/s11356-016-8258-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/23/2016] [Accepted: 12/13/2016] [Indexed: 06/06/2023]
Abstract
The temporal variations in plant chemistry connected with its life cycle may affect the cycling of elements in an ecosystem as well as determine the usefulness of the species in phytoremediation and bioindication. In this context, there is a gap in knowledge on the role of floating plants for elements cycling in aquatic reservoirs. The aim of the study was to determine if there are variations in Hydrocharis morsus-ranae (European frog-bit) bioaccumulation capacity and the growth rate of its population during the growing season and to test the impact of environmental pollution on these features. The content of macroelements (Ca, K, Mg, N, Na, P, S) and trace metals (Cd, Co, Cu, Cr, Hg, Fe, Mn, Ni, Pb, Zn) was determined in H. morsus-ranae collected monthly from June to October from habitats differing in environmental contamination. The results showed that the highest content of most trace metals (Co, Cr, Cu, Hg, Mn, Ni, Zn) and some nutrients (N, P) in plants as well as the greatest bioaccumulation efficiency occurred simultaneously in the beginning of the growing season. In the following months, a dilution effect (manifested by a decrease in content) related to the rapid growth was observed. Co, Mn, and Ni content in plant tissues reflected the level of environmental contamination throughout the growing season which makes H. morsus-ranae a potential biomonitor of pollution for these metals. Considering the great bioaccumulation ability, high sensitivity to contamination, and low biomass of European frog-bit in polluted systems, further investigation is required to assess the real phytoremediation capability of the species.
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Affiliation(s)
- Ludmiła Polechońska
- Department of Ecology, Biogeochemistry, and Environmental Protection, University of Wrocław, ul. Kanonia 6/8, 50-328, Wrocław, Poland.
| | - Aleksandra Samecka-Cymerman
- Department of Ecology, Biogeochemistry, and Environmental Protection, University of Wrocław, ul. Kanonia 6/8, 50-328, Wrocław, Poland
| | - Małgorzata Dambiec
- Department of Ecology, Biogeochemistry, and Environmental Protection, University of Wrocław, ul. Kanonia 6/8, 50-328, Wrocław, Poland
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1129
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Barrella MV, Heringer OA, Cardoso PMM, Pimentel EF, Scherer R, Lenz D, Endringer DC. Metals Content in Herbal Supplements. Biol Trace Elem Res 2017; 175:488-494. [PMID: 27344673 DOI: 10.1007/s12011-016-0776-2] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/25/2016] [Accepted: 06/07/2016] [Indexed: 12/15/2022]
Abstract
Obesity has become an international epidemic. To evaluate the level of metals in extracts of plants prescribed as weight loss supplements, different brands containing Camellia sinensis (L.) Kuntze, Citrus aurantium L., Cordia ecalyculata Vell, Ilex paraguariensis A. St.-Hil, Cissus quadrangularis L., Senna alexandrina Mill were purchased in local market, hot acid digested, and analyzed while metal content by inductively coupled plasma optical emission spectrometry, ICP-OES. Quality assurance and quality control tests were carried out in order to monitor and control the reliability of the analytical method. For each metal evaluated, a calibration curve was prepared with certified reference material. The recovery test was performed for each batch of samples. Analyses were performed in triplicate. Quantification of aluminum, barium, cadmium, cobalt, chromium, copper, iron, lithium, manganese, molybdenum, nickel, lead, vanadium, and zinc were determined. The metals most frequently detected were manganese (15.3-329,60 mg kg-1) aluminum (11.76-342.4 mg kg-1), and iron (11.14-73.01 mg kg-1) with higher levels in products containing C. sinensis China origin, I. paraguariensis Brazilian origin, C. quadrangularis, and C. aurantium China origin, respectively. To ensure safety consumption, an adequacy of the certification of Brazilian suppliers for herbal weight loss products is indispensable.
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Affiliation(s)
- Michelle Vieira Barrella
- Pharmacy Postgraduate Program, Vila Velha Universitys, Av. Comissário José Dantas de Melo, n°21, 29102-920 - Boa Vista, Vila Velha, ES, Brazil
| | - Otavio Arruda Heringer
- Tommasi Analítica, Av. Luciano das Neves, 2016, Divino Espirito Santo, Vila Velha, ES, Brazil
| | - Priscylla Maria Martins Cardoso
- Pharmacy Postgraduate Program, Vila Velha Universitys, Av. Comissário José Dantas de Melo, n°21, 29102-920 - Boa Vista, Vila Velha, ES, Brazil
| | - Elisangela Flavia Pimentel
- Pharmacy Postgraduate Program, Vila Velha Universitys, Av. Comissário José Dantas de Melo, n°21, 29102-920 - Boa Vista, Vila Velha, ES, Brazil
| | - Rodrigo Scherer
- Pharmacy Postgraduate Program, Vila Velha Universitys, Av. Comissário José Dantas de Melo, n°21, 29102-920 - Boa Vista, Vila Velha, ES, Brazil
| | - Dominik Lenz
- Pharmacy Postgraduate Program, Vila Velha Universitys, Av. Comissário José Dantas de Melo, n°21, 29102-920 - Boa Vista, Vila Velha, ES, Brazil
| | - Denise C Endringer
- Pharmacy Postgraduate Program, Vila Velha Universitys, Av. Comissário José Dantas de Melo, n°21, 29102-920 - Boa Vista, Vila Velha, ES, Brazil.
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1130
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Deng T, Zhang B, Li F, Jin L. Sediment washing by EDTA and its reclamation by sodium polyamidoamine-multi dithiocarbamate. CHEMOSPHERE 2017; 168:450-456. [PMID: 27829161 DOI: 10.1016/j.chemosphere.2016.09.152] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/13/2016] [Revised: 09/17/2016] [Accepted: 09/29/2016] [Indexed: 06/06/2023]
Abstract
Sodium polyamidoamine-multi dithiocarbamate (PAMAM-DTC) is a kind of heavy metals capturing agent, containing functional groups of dithiocarbamate that could strongly chelate heavy metals. In this paper, it was applied to precipitate heavy metal ions from meal-EDTA and reclaim EDTA during sediment washing process. The extracting performance of fresh EDTA was studied as a function of EDTA concentration, liquid/sediment (L/S), pH, and extraction time. Then the EDTA effluents were treated with PAMAM-DTC, Na2S and sodium diethyldithiocarbamate (DDTC) to compare their effectiveness on capturing metals from metal-EDTA complexes. Four divalent heavy metals were investigated (Pb, Cd, Cu, Zn). PAMAM-DTC shows much better performance. Pb, Cd and Cu could almost be precipitated completely by PAMAM-DTC under the dosage of 350 mg L-1, while Zn could be only partly precipitated which may due to its failure in competition with the other three metal ions on chelation with PAMAM-DTC. The reclaimed EDTA was reused in three cycles of sediment washing, and the amount of heavy metals extracted just slightly decreased in each cycle.
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Affiliation(s)
- Tianlin Deng
- State Key Lab of Pollution Control & Resource Reuse, UNEP-Tongji Institute of Environment for Sustainable Development, College of Environmental Science and Engineering, Tongji University, 1239 Siping Rd, Shanghai 200092, China
| | - Bingru Zhang
- State Key Lab of Pollution Control & Resource Reuse, UNEP-Tongji Institute of Environment for Sustainable Development, College of Environmental Science and Engineering, Tongji University, 1239 Siping Rd, Shanghai 200092, China; Key Laboratory of Yangtze River Water Environment, Ministry of Education, College of Environmental Science and Engineering, Tongji University, 1239 Siping Rd, Shanghai 200092, China.
| | - Fengting Li
- State Key Lab of Pollution Control & Resource Reuse, UNEP-Tongji Institute of Environment for Sustainable Development, College of Environmental Science and Engineering, Tongji University, 1239 Siping Rd, Shanghai 200092, China
| | - Luyao Jin
- State Key Lab of Pollution Control & Resource Reuse, UNEP-Tongji Institute of Environment for Sustainable Development, College of Environmental Science and Engineering, Tongji University, 1239 Siping Rd, Shanghai 200092, China
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1131
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Oyuela Leguizamo MA, Fernández Gómez WD, Sarmiento MCG. Native herbaceous plant species with potential use in phytoremediation of heavy metals, spotlight on wetlands - A review. CHEMOSPHERE 2017; 168:1230-1247. [PMID: 27823781 DOI: 10.1016/j.chemosphere.2016.10.075] [Citation(s) in RCA: 67] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/20/2016] [Revised: 10/19/2016] [Accepted: 10/20/2016] [Indexed: 06/06/2023]
Abstract
Soil, air and water pollution caused by the mobility and solubility of heavy metals significantly damages the environment, human health, plants and animals. One common in situ method used for the decontamination of heavy metals is phytoremediation. This usually involves the use of exotic species. However, these species may exhibit invasive behavior, thereby, affect the environmental and ecological dynamics of the ecosystem into which they are introduced. This paper focuses on some native herbaceous plant species reported on the wetlands of Bogota, Colombia, with potential use in phytoremediation of heavy metals. To do that, the authors identified and searched a bibliography based on key words related to heavy metal decontamination. In addition, authors gathered and analyzed relevant information that allowed the comprehension of the phytoremediation process. This paper suggests the study of 41 native or endemic species regarding their behavior towards heavy metal contamination. From a survey of herbaceous plants reported in Bogota, native and endemic species that belong to predominant families in heavy metal accumulation processes were selected. Although found in Colombian's wetlands, these can also be found worldwide. Therefore, they are of great interest due to their global presence and their potential for use in phytoremediation. The current research about the development of phytoremediation focuses on the identification of new herbaceous species able to decontaminate substratum polluted with heavy metals to contribute with the investigation of the ecology and environment of the nature's remnants in urban wetland ecosystems.
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Affiliation(s)
- Mayerly Alexandra Oyuela Leguizamo
- Faculty of Environmental and Natural Resources, Campus El Vivero, Natura Building, Universidad Distrital Francisco José de Caldas, Bogota, Colombia.
| | - Wilmar Darío Fernández Gómez
- Faculty of Environmental and Natural Resources, Campus El Vivero, Natura Building, Universidad Distrital Francisco José de Caldas, Bogota, Colombia.
| | - Martha Cecilia Gutiérrez Sarmiento
- Faculty of Environmental and Natural Resources, Campus El Vivero, Natura Building, Universidad Distrital Francisco José de Caldas, Bogota, Colombia.
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1132
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Al Harbawee WEQ, Kluchagina AN, Anjum NA, Bashmakov DI, Lukatkin AS, Pereira E. Evaluation of cotton burdock (Arctium tomentosum Mill.) responses to multi-metal exposure. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2017; 24:5431-5438. [PMID: 28028699 DOI: 10.1007/s11356-016-8244-2] [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] [Received: 07/14/2016] [Accepted: 12/11/2016] [Indexed: 06/06/2023]
Abstract
Plants have immense potential for their use in the minimization of emerging environmental pollution issues. Under simulated laboratory conditions, this work investigated the growth and biochemical responses of 14-day-old cotton burdock (Arctium tomentosum Mill.) seedlings to the body burdens of multi-metals including Pb, Cu, Ni, and Zn (1.0 μM-10 mM). Biochemical traits (superoxide generation, lipid peroxidation, content of total peroxides), growth traits (axial organs growth, dry weight accumulation, leaf area), and also metal body burdens varied with types and concentrations of metals. Results indicated a significant tolerance of A. tomentosum to multi-metals that can be implicated for its potential role in the metal phytoremediation programs.
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Affiliation(s)
- Waad E Q Al Harbawee
- Department of Botany, Physiology and Ecology of Plants, N.P. Ogarev Mordovia State University, Bolshevistskaja Str., 68, Saransk, Russia, 430005.
| | - Alina N Kluchagina
- Department of Botany, Physiology and Ecology of Plants, N.P. Ogarev Mordovia State University, Bolshevistskaja Str., 68, Saransk, Russia, 430005.
| | - Naser A Anjum
- CESAM-Centre for Environmental and Marine Studies, and Department of Chemistry, University of Aveiro, 3810-193, Aveiro, Portugal.
| | - Dmitry I Bashmakov
- Department of Botany, Physiology and Ecology of Plants, N.P. Ogarev Mordovia State University, Bolshevistskaja Str., 68, Saransk, Russia, 430005.
| | - Alexander S Lukatkin
- Department of Botany, Physiology and Ecology of Plants, N.P. Ogarev Mordovia State University, Bolshevistskaja Str., 68, Saransk, Russia, 430005.
| | - Eduarda Pereira
- CESAM-Centre for Environmental and Marine Studies, and Department of Chemistry, University of Aveiro, 3810-193, Aveiro, Portugal
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1133
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Klink A. A comparison of trace metal bioaccumulation and distribution in Typha latifolia and Phragmites australis: implication for phytoremediation. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2017; 24:3843-3852. [PMID: 27900625 DOI: 10.1007/s11356-016-8135-6] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/03/2016] [Accepted: 11/21/2016] [Indexed: 06/06/2023]
Abstract
The aims of the present investigation were to reveal various trace metal accumulation abilities of two common helophytes Typha latifolia and Phragmites australis and to investigate their potential use in the phytoremediation of environmental metal pollution. The concentrations of Fe, Mn, Zn, Cu, Cd, Pb and Ni were determined in roots, rhizomes, stems and leaves of both species studied as well as in corresponding water and bottom sediments from 19 sites selected within seven lakes in western Poland (Leszczyńskie Lakeland). The principal component and classification analysis showed that P. australis leaves were correlated with the highest Mn, Fe and Cd concentrations, but T. latifolia leaves with the highest Pb, Zn and Cu concentrations. However, roots of the P. australis were correlated with the highest Mn, Fe and Cu concentrations, while T. latifolia roots had the highest Pb, Zn and Cd concentrations. Despite the differences in trace metal accumulation ability between the species studied, Fe, Cu, Zn, Pb and Ni concentrations in the P. australis and T. latifolia exhibited the following accumulation scheme: roots > rhizomes > leaves > stems, while Mn decreased in the following order: root > leaf > rhizome > stem. The high values of bioaccumulation factors and low values of translocation factors for Zn, Mn, Pb and Cu indicated the potential application of T. latifolia and P. australis in the phytostabilisation of contaminated aquatic ecosystems. Due to high biomass of aboveground organs of both species, the amount of trace metals stored in these organs during the vegetation period was considerably high, despite of the small trace metals transport.
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Affiliation(s)
- Agnieszka Klink
- Department of Ecology, Biogeochemistry and Environmental Protection, University of Wrocław, ul. Kanonia 6/8, 50-328, Wrocław, Poland.
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1134
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Maarof HI, Daud WMAW, Aroua MK. Recent trends in removal and recovery of heavy metals from wastewater by electrochemical technologies. REV CHEM ENG 2017. [DOI: 10.1515/revce-2016-0021] [Citation(s) in RCA: 43] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/07/2022]
Abstract
AbstractHeavy metal-laden water and wastewater pose a threat to biodiversity, including human health. Contaminated wastewater can be treated with several separation and purification methods. Among them, electrochemical treatment is a notable clean technology, versatile and environmentally compatible for the removal and recovery of inorganic pollutants from water and wastewater. Electrochemical technology provides solution for the recovery of metals in their most valuable state. This paper analyses the most recent electrochemical approaches for the removal and recovery of metal ions. Various current works involving cell design and electrode development were addressed in distinguished electrochemical processes, namely, electrodeposition, electrocoagulation, electroflotation, and electrosorption. Cathodic reduction of metal ions has been proven in result to metal deposit on the metal, metal oxide, stainless steel, and graphite electrode. However, little progress has been made toward electrode modification, particularly the cathode for the purpose of cathodic reduction and deposition. Meanwhile, emerging advanced materials, such as ionic liquids, have been presented to be prominent to the technological advancement of electrode modifications. It has been projected that by integrating different priorities into the design approach for electrochemical reactors and recent electrode developments, several insights can be obtained that will contribute toward the enhancement of the electrochemical process performance for the effective removal and recovery of heavy metals from water and wastewater in the near future.
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1135
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Enhanced Nitrogen and Phosphorus Removal by Woody Plants with Deep-Planting Technique for the Potential Environmental Management of Carcass Burial Sites. SUSTAINABILITY 2017. [DOI: 10.3390/su9010155] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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1136
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Ayangbenro AS, Babalola OO. A New Strategy for Heavy Metal Polluted Environments: A Review of Microbial Biosorbents. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2017; 14:ijerph14010094. [PMID: 28106848 PMCID: PMC5295344 DOI: 10.3390/ijerph14010094] [Citation(s) in RCA: 528] [Impact Index Per Article: 75.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/20/2016] [Revised: 12/26/2016] [Accepted: 01/13/2017] [Indexed: 01/29/2023]
Abstract
Persistent heavy metal pollution poses a major threat to all life forms in the environment due to its toxic effects. These metals are very reactive at low concentrations and can accumulate in the food web, causing severe public health concerns. Remediation using conventional physical and chemical methods is uneconomical and generates large volumes of chemical waste. Bioremediation of hazardous metals has received considerable and growing interest over the years. The use of microbial biosorbents is eco-friendly and cost effective; hence, it is an efficient alternative for the remediation of heavy metal contaminated environments. Microbes have various mechanisms of metal sequestration that hold greater metal biosorption capacities. The goal of microbial biosorption is to remove and/or recover metals and metalloids from solutions, using living or dead biomass and their components. This review discusses the sources of toxic heavy metals and describes the groups of microorganisms with biosorbent potential for heavy metal removal.
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Affiliation(s)
- Ayansina Segun Ayangbenro
- Food Security and Safety Niche Area, Faculty of Agriculture, Science and Technology, North-West University, Private Bag X2046, Mmabatho 2735, South Africa.
| | - Olubukola Oluranti Babalola
- Food Security and Safety Niche Area, Faculty of Agriculture, Science and Technology, North-West University, Private Bag X2046, Mmabatho 2735, South Africa.
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1137
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Antoniadis V, Shaheen SM, Boersch J, Frohne T, Du Laing G, Rinklebe J. Bioavailability and risk assessment of potentially toxic elements in garden edible vegetables and soils around a highly contaminated former mining area in Germany. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2017; 186:192-200. [PMID: 27117508 DOI: 10.1016/j.jenvman.2016.04.036] [Citation(s) in RCA: 130] [Impact Index Per Article: 18.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/30/2016] [Revised: 04/11/2016] [Accepted: 04/13/2016] [Indexed: 05/19/2023]
Abstract
Although soil contamination by potentially toxic elements (PTEs) in Europe has a history of many centuries, related problems are often considered as having been dealt with due to the enforcement of tight legislations. However, there are many unsolved issues. We aimed to assess PTE levels in highly contaminated soils and in garden edible vegetables using human health risk indices in order to evaluate the availability and mobilization of arsenic (As), copper (Cu), manganese (Mn), mercury (Hg), lead (Pb), and zinc (Zn). In four gardens in Germany, situated on, or in the vicinity of, a mine dump area, we planted beans (Phaseolus vulgaris ssp. nanus), carrots (Daucus sativus) and lettuce (Lactuca sativa ssp. capitata). We examined soil-to-plant mobilization of elements using transfer coefficient (TC), as well as soil contamination using contamination factor (CF), enrichment factor (EF), and bioaccumulation index (Igeo). In addition, we tested two human health risk assessment indices: Soil-induced hazard quotient (HQS) (representing the "direct soil ingestion" pathway), and vegetable-induced hazard quotient (HQV) (representing the "vegetable intake" pathway). The studied elements were highly elevated in the soils. The values in garden 2 were especially high (e.g., Pb: 13789.0 and Hg: 36.8 mg kg-1) and largely exceeded the reported regulation limits of 50 (for As), 40 (Cu), 400 (Pb), 150 (Zn), and 5 (Hg) mg kg-1. Similarly, element concentrations were very high in the grown vegetables. The indices of CF, EF and Igeo were enhanced even to levels that are rarely reported in the literature. Specifically, garden 2 indicated severe contamination due to multi-element deposition. The contribution of each PTE to the total of measured HQS revealed that Pb was the single most important element causing health risk (contributing up to 77% to total HQS). Lead also posed the highest risk concerning vegetable consumption, contributing up to 77% to total HQV. The presence of lead in both cases was followed by that of As, Mn and Hg. We conclude that in multi-element contamination cases, along with high-toxicity elements (here, Pb, As and Hg) other elements may also be responsible for increasing human health risks (i.e., Mn), due to the possibility of adverse synergism of the PTEs.
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Affiliation(s)
- Vasileios Antoniadis
- School of Agriculture, University of Thessaly, Fytokou Street, GR-384 46, Greece.
| | - Sabry M Shaheen
- University of Kafrelsheikh, Faculty of Agriculture, Department of Soil and Water Sciences, 33 516 Kafr El-Sheikh, Egypt; University of Wuppertal, Soil- and Groundwater-Management, Pauluskirchstraße 7, 42285 Wuppertal, Germany.
| | - Judith Boersch
- University of Wuppertal, Soil- and Groundwater-Management, Pauluskirchstraße 7, 42285 Wuppertal, Germany
| | - Tina Frohne
- University of Wuppertal, Soil- and Groundwater-Management, Pauluskirchstraße 7, 42285 Wuppertal, Germany.
| | - Gijs Du Laing
- Laboratory of Analytical Chemistry and Applied Ecochemistry, Department of Applied Analytical and Physical Chemistry, Faculty of Bioscience Engineering, Ghent University, Coupure Links 653, Ghent, Belgium
| | - Jörg Rinklebe
- University of Wuppertal, Soil- and Groundwater-Management, Pauluskirchstraße 7, 42285 Wuppertal, Germany.
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1138
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Liu F, Shan C, Zhang X, Zhang Y, Zhang W, Pan B. Enhanced removal of EDTA-chelated Cu(II) by polymeric anion-exchanger supported nanoscale zero-valent iron. JOURNAL OF HAZARDOUS MATERIALS 2017; 321:290-298. [PMID: 27637095 DOI: 10.1016/j.jhazmat.2016.09.022] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/23/2016] [Revised: 08/22/2016] [Accepted: 09/09/2016] [Indexed: 06/06/2023]
Abstract
In this study, a polymeric anion exchanger (D201) was utilized as the support for nanoscale zero-valent iron (NZVI), and the resultant nanocomposite (D201-ZVI) was employed to remove EDTA-chelated Cu(II) from water. The removal of EDTA-chelated Cu(II) was significantly enhanced by D201-ZVI in comparison with NZVI over a wide pH range from 5 to 9. Most of the removed Cu (97.2%) was immobilized inside the D201-ZVI beads, implying the enhanced permeation of CuEDTA2- by the fixated quaternary ammonium groups of the host D201. HPLC analysis revealed that the EDTA-chelated Cu(II) was gradually replaced by Fe(III) originated from Fe0 oxidation. Then, the released Cu(II) was in situ removed via adsorption/precipitation, or further reduced into Cu0, as quantified by XPS spectra. The higher removal of EDTA-chelated Cu(II) by D201-ZVI than NZVI was mainly ascribed to the enhanced permeation of the host D201 as well as to the better dispersion and higher reactivity of the confined ZVI nanoparticles. Through the combination of periodic regeneration and complete regeneration, D201-ZVI could be sustainably employed for EDTA-chelated Cu(II) removal. Also, D201-ZVI exhibited great potential for practical application in the fixed-bed column operation. Therefore, the D201-ZVI nanocomposite was promising in highly efficient removal of EDTA-chelated Cu(II) from water.
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Affiliation(s)
- Fei Liu
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing 210023, PR China; School of Chemical Engineering, Huaiyin Institute of Technology, Huai'an 223003, PR China
| | - Chao Shan
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing 210023, PR China
| | - Xiaolin Zhang
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing 210023, PR China
| | - Yanyang Zhang
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing 210023, PR China
| | - Weiming Zhang
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing 210023, PR China
| | - Bingcai Pan
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing 210023, PR China.
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1139
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Hernández-Vega JC, Cady B, Kayanja G, Mauriello A, Cervantes N, Gillespie A, Lavia L, Trujillo J, Alkio M, Colón-Carmona A. Detoxification of polycyclic aromatic hydrocarbons (PAHs) in Arabidopsis thaliana involves a putative flavonol synthase. JOURNAL OF HAZARDOUS MATERIALS 2017; 321:268-280. [PMID: 27637093 PMCID: PMC5373802 DOI: 10.1016/j.jhazmat.2016.08.058] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/26/2016] [Revised: 08/18/2016] [Accepted: 08/23/2016] [Indexed: 05/22/2023]
Abstract
Polycyclic aromatic hydrocarbons (PAHs) are environmental contaminants with cytotoxic, teratogenic and carcinogenic properties. Bioremediation studies with bacteria have led to the identification of dioxygenases (DOXs) in the first step to degrade these recalcitrant compounds. In this study, we characterized the role of the Arabidopsis thaliana AT5G05600, a putative DOX of the flavonol synthase family, in the transformation of PAHs. Phenotypic analysis of loss-of-function mutant lines showed that these plant lines were less sensitive to the toxic effects of phenanthrene, suggesting possible roles of this gene in PAH degradation in vivo. Interestingly, these mutant lines showed less accumulation of H2O2 after PAH exposure. Transgenic lines over-expressing At5g05600 showed a hypersensitive response and more oxidative stress after phenanthrene treatments. Moreover, fluorescence spectra results of biochemical assays with the recombinant His-tagged protein AT5G05600 detected chemical modifications of phenanthrene. Taken together, these results support the hypothesis that AT5G05600 is involved in the catabolism of PAHs and the accumulation of toxic intermediates during PAH biotransformation in plants. This research represents the first step in the design of transgenic plants with the potential to degrade PAHs, leading to the development of vigorous plant varieties that can reduce the levels of these pollutants in the environment.
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Affiliation(s)
- Juan C Hernández-Vega
- Department of Biology, University of Massachusetts Boston, 100 Morrissey Blvd., Boston, MA 02125, USA
| | - Brian Cady
- Department of Biology, University of Massachusetts Boston, 100 Morrissey Blvd., Boston, MA 02125, USA
| | - Gilbert Kayanja
- Department of Biology, University of Massachusetts Boston, 100 Morrissey Blvd., Boston, MA 02125, USA
| | - Anthony Mauriello
- Department of Biology, University of Massachusetts Boston, 100 Morrissey Blvd., Boston, MA 02125, USA
| | - Natalie Cervantes
- Department of Biology, University of Massachusetts Boston, 100 Morrissey Blvd., Boston, MA 02125, USA
| | - Andrea Gillespie
- Department of Biology, University of Massachusetts Boston, 100 Morrissey Blvd., Boston, MA 02125, USA
| | - Lisa Lavia
- Department of Biology, University of Massachusetts Boston, 100 Morrissey Blvd., Boston, MA 02125, USA
| | - Joshua Trujillo
- Department of Biology, University of Massachusetts Boston, 100 Morrissey Blvd., Boston, MA 02125, USA
| | | | - Adán Colón-Carmona
- Department of Biology, University of Massachusetts Boston, 100 Morrissey Blvd., Boston, MA 02125, USA.
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1140
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Ali B, Javed MT, Ali H, Munis MFH, Chaudhary HJ. Influence of endophytic Bacillus pumilus and EDTA on the phytoextraction of Cu from soil by using Cicer arietinum. INTERNATIONAL JOURNAL OF PHYTOREMEDIATION 2017; 19:14-22. [PMID: 27869502 DOI: 10.1080/15226514.2016.1216075] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
In developing countries, soil contamination with metals is ubiquitous, which poses a serious threat to the ecosystem. The current study was designed to screen out the nested belongings of Cicer arietinum plants and Bacillus pumilus (KF 875447) in extracting copper (Cu) from contaminated soils. A pot experiment was executed by growing C. arietinum seedlings either inoculated with B. pumilus or uninoculated along with the application of 5 mM ethylenediaminetetraacetic acid (EDTA). Plants were subjected to three different concentrations of Cu (250, 350, and 500 ppm) for 48 days. An increase in Cu uptake was observed in C. arietinum plants inoculated with B. pumilus as compared to uninoculated ones. C. arietinum exhibited improved values for different growth parameters in the presence of B. pumilus, that is, root length (37%), shoot length (31%), whole plant fresh as well as (45%) dry weight (27%), and chlorophyll contents (32%). More than 70% of tolerance index (TI) was observed for plants at 500 ppm Cu treatment. Addition of B. pumilus and EDTA significantly increased metal uptake by C. arietinum up to 19 and 36%, respectively, while the application of B. pumilus and EDTA in combination increased metal accumulation by 41%. The calculated bioaccumulation and translocation factor (TF) revealed that C. arietinum possess phytoextraction potential for Cu, and this ability is significantly improved with application of B. pumilus and EDTA amendments.
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Affiliation(s)
- Barkat Ali
- a Department of Plant Sciences , Faculty of Biological Sciences, Quaid-i-Azam University , Islamabad , Pakistan
| | | | - Hazrat Ali
- c Department of Zoology , University of Malakand , Khyber Pakhtunkhwa , Pakistan
| | | | - Hassan Javed Chaudhary
- a Department of Plant Sciences , Faculty of Biological Sciences, Quaid-i-Azam University , Islamabad , Pakistan
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1141
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López-Orenes A, Bueso MC, Conesa HM, Calderón AA, Ferrer MA. Seasonal changes in antioxidative/oxidative profile of mining and non-mining populations of Syrian beancaper as determined by soil conditions. THE SCIENCE OF THE TOTAL ENVIRONMENT 2017; 575:437-447. [PMID: 27750140 DOI: 10.1016/j.scitotenv.2016.10.030] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/04/2016] [Revised: 10/04/2016] [Accepted: 10/04/2016] [Indexed: 06/06/2023]
Abstract
Soil pollution by heavy metals/metalloids (HMMs) is a problem worldwide. To prevent dispersion of contaminated particles by erosion, the maintenance of a vegetative cover is needed. Successful plant establishment in multi-polluted soils can be hampered not only by HMM toxicities, but also by soil nutrient deficiencies and the co-occurrence of abiotic stresses. Some plant species are able to thrive under these multi-stress scenarios often linked to marked fluctuations in environmental factors. This study aimed to investigate the metabolic adjustments involved in Zygophyllum fabago acclimative responses to conditions prevailing in HMM-enriched mine-tailings piles, during Mediterranean spring and summer. To this end, fully expanded leaves, and rhizosphere soil, of three contrasting mining and non-mining populations of Z. fabago grown spontaneously in south-eastern Spain were sampled in two consecutive years. Approximately 50 biochemical, physiological and edaphic parameters were examined, including leaf redox components, primary and secondary metabolites, endogenous levels of salicylic acid, and physicochemical properties of soil (fertility parameters and total concentration of HMMs). Multivariate data analysis showed a clear distinction in antioxidative/oxidative profiles between and within the populations studied. Levels of chlorophylls, proteins and proline characterized control plants whereas antioxidant capacity and C- and S-based antioxidant compounds were biomarkers of mining plants. Seasonal variations were characterized by higher levels of alkaloids and PAL and soluble peroxidase activities in summer, and by soluble sugars and hydroxycinnamic acids in spring irrespective of the population considered. Although the antioxidant systems are subjected to seasonal variations, the way and the intensity with which every population changes its antioxidative/oxidative profile seem to be determined by soil conditions. In short, Z. fabago displays a high physiological plasticity that allow it to successfully shift its metabolism to withstand the multiple stresses that plants must cope with in mine tailings piles under Mediterranean climatic conditions.
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Affiliation(s)
- Antonio López-Orenes
- Department of Agricultural Science and Technology, Universidad Politécnica de Cartagena, Paseo Alfonso XIII 48, 30203 Cartagena, Murcia, Spain
| | - María C Bueso
- Department of Applied Mathematics and Statistics, Universidad Politécnica de Cartagena, Campus Muralla del Mar, Doctor Fleming s/n, ETSII, 30202 Cartagena, Murcia, Spain
| | - Héctor M Conesa
- Department of Agricultural Science and Technology, Universidad Politécnica de Cartagena, Paseo Alfonso XIII 48, 30203 Cartagena, Murcia, Spain
| | - Antonio A Calderón
- Department of Agricultural Science and Technology, Universidad Politécnica de Cartagena, Paseo Alfonso XIII 48, 30203 Cartagena, Murcia, Spain
| | - María A Ferrer
- Department of Agricultural Science and Technology, Universidad Politécnica de Cartagena, Paseo Alfonso XIII 48, 30203 Cartagena, Murcia, Spain.
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1142
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Biochemistry and Physiology of Heavy Metal Resistance and Accumulation in Euglena. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2017; 979:91-121. [PMID: 28429319 DOI: 10.1007/978-3-319-54910-1_6] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Free-living microorganisms may become suitable models for removal of heavy metals from polluted water bodies, sediments, and soils by using and enhancing their metal accumulating abilities. The available research data indicate that protists of the genus Euglena are a highly promising group of microorganisms to be used in bio-remediation of heavy metal-polluted aerobic and anaerobic acidic aquatic environments. This chapter analyzes the variety of biochemical mechanisms evolved in E. gracilis to resist, accumulate and remove heavy metals from the environment, being the most relevant those involving (1) adsorption to the external cell pellicle; (2) intracellular binding by glutathione and glutathione polymers, and their further compartmentalization as heavy metal-complexes into chloroplasts and mitochondria; (3) polyphosphate biosynthesis; and (4) secretion of organic acids. The available data at the transcriptional, kinetic and metabolic levels on these metabolic/cellular processes are herein reviewed and analyzed to provide mechanistic basis for developing genetically engineered Euglena cells that may have a greater removal and accumulating capacity for bioremediation and recycling of heavy metals.
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1143
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Kaur R, Yadav P, Thukral AK, Walia A, Bhardwaj R. Co-application of 6-ketone type brassinosteroid and metal chelator alleviates cadmium toxicity in B. juncea L. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2017; 24:685-700. [PMID: 27752946 DOI: 10.1007/s11356-016-7864-x] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/30/2016] [Accepted: 10/06/2016] [Indexed: 06/06/2023]
Abstract
Plant growth regulator-assisted phytoremediation has been assessed as a novel strategy to improve phytoremediation potential of plants. In the present work, potential of castasterone, a plant growth regulator, combined with citric acid was explored for phytoremediation of cadmium in Brassica juncea seedlings. The seedlings were raised under controlled laboratory conditions for 7 days. Results revealed that 0.6 mM cadmium exposure induced toxicity in the seedlings, which was reflected through root growth inhibition, accumulation of hydrogen peroxide and malondialdehyde, and loss of cell viability. Pre-sowing treatment of castasterone supplemented with citric acid enhanced cadmium accumulation in the roots (from 752 μg/g DW to 1192 μg/g DW) and shoots (from 88 μg/g DW to 311 μg/g DW) and also improved root length, shoot length, fresh weight, and dry weight of seedlings by 81, 17, 39, and 35 %, respectively. The co-application reduced malondialdehyde accumulation by 39 % and reduced oxidative stress by enhancing the activities of antioxidant enzymes (superoxide dismutase, guaiacol peroxidase, catalase, ascorbate peroxidase, dehydroascorbate, glutathione reductase, glutathione peroxidase, glutathione-S-transferase, polyphenol oxidase), maximum enhancement (82 %) being in polyphenol oxidase. Similarly, the contents of water- and lipid-soluble antioxidants were found to increase by 31 and 4 %, respectively. Confocal microscopy revealed enhanced content of NO. Results suggested that binary combination of castasterone and citric acid is helpful in improving cadmium accumulation and ameliorating metal toxicity in B. juncea seedlings.
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Affiliation(s)
- Ravdeep Kaur
- Department of Botanical and Environmental Sciences, Guru Nanak Dev University, Amritsar, Punjab, 143005,, India
| | - Poonam Yadav
- Department of Botanical and Environmental Sciences, Guru Nanak Dev University, Amritsar, Punjab, 143005,, India
| | - Ashwani Kumar Thukral
- Department of Botanical and Environmental Sciences, Guru Nanak Dev University, Amritsar, Punjab, 143005,, India
| | - Amandeep Walia
- Emerging Life Sciences, Guru Nanak Dev University, Amritsar, Punjab, 143005,, India
| | - Renu Bhardwaj
- Department of Botanical and Environmental Sciences, Guru Nanak Dev University, Amritsar, Punjab, 143005,, India.
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1144
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Nakajima H, Itoh K. Relationship between metal and pigment concentrations in the Fe-hyperaccumulator moss Scopelophila ligulata. JOURNAL OF PLANT RESEARCH 2017; 130:135-141. [PMID: 27761669 DOI: 10.1007/s10265-016-0867-3] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/02/2016] [Accepted: 09/17/2016] [Indexed: 06/06/2023]
Abstract
Scopelophila ligulata is known to be a Fe-hyperaccumulator moss; however, its mechanism of accumulation and the effects of Fe on pigments remain unclear. To clarify the effects, we measured its metal and pigment concentrations. The Fe concentration in S. ligulata was 10-61 times higher than that in normal mosses, confirming that the moss is a Fe-hyperaccumulator. The black samples of S. ligulata had the highest Fe concentration (2.9 wt%) and the second in the order of decreasing Fe concentration (2.2 wt%), which explains their color and indicates that the excess amount of Fe is distributed through the plant body. Moreover, we observed that the concentration of Ca is negatively correlated with the concentrations of pigments and, conversely, that the concentration of K is positively correlated with the concentrations of pigments. This inverse relationship between Ca and K can be explained by the reduced uptake of K in S. ligulata in response to Ca stress, which is supported by the fact that the concentration of Ca is negatively correlated with that of K. These findings provide a better understanding of the relationships between metals and pigments in the Fe-hyperaccumulator moss S. ligulata.
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Affiliation(s)
- Hiromitsu Nakajima
- Graduate School of Environment and Information Sciences, Yokohama National University, Tokiwadai 79-7, Hodogayaku, Yokohama, 240-8501, Japan.
| | - Kiminori Itoh
- Graduate School of Environment and Information Sciences, Yokohama National University, Tokiwadai 79-7, Hodogayaku, Yokohama, 240-8501, Japan
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1145
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Boechat CL, Giovanella P, Amorim MB, de Sá ELS, de Oliveira Camargo FA. Metal-resistant rhizobacteria isolates improve Mucuna deeringiana phytoextraction capacity in multi-metal contaminated soils from a gold mining area. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2017; 24:3063-3073. [PMID: 27854061 DOI: 10.1007/s11356-016-8103-1] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/11/2016] [Accepted: 11/11/2016] [Indexed: 06/06/2023]
Abstract
Phytoremediation consists of biological techniques for heavy metal remediation, which include exploring the genetic package of vegetable species to remove heavy metals from the environment. The goals of this study were to investigate heavy metal and bioaugmentation effects on growth and nutrient uptake by Mucuna deeringiana; to determine the metal translocation factor and bioconcentration factor and provide insight for using native bacteria to enhance heavy metal accumulation. The experiment was conducted under greenhouse conditions using a 2 × 4 factorial scheme with highly and slightly contaminated soil samples and inoculating M. deeringiana with three highly lead (Pb+2)-resistant bacteria Kluyvera intermedia (Ki), Klebsiella oxytoca (Ko), and Citrobacter murliniae (Cm) isolated from the rhizosphere of native plants identified as Senecio brasiliensis (Spreng.) Less., Senecio leptolobus DC., and Baccharis trimera (Less) DC., respectively. The increased heavy metal concentrations in soil samples do not decrease the root dry mass of M. deeringiana, concerning the number and dry weight of nodules. The shoot dry mass is reduced by the increasing concentration of heavy metals in soil associated with Kluyvera intermedia and Klebsiella oxytoca bacteria. The number of nodules is affected by heavy metals associated with Citrobacter murliniae bacteria. The bacteria K. intermedia, C. murliniae, and K. oxytoca increase the lead and cadmium available in the soil and enhanced metal uptake by Mucuna deeringiana. The M. deeringiana specie has characteristics that make it hyperaccumulate copper and zinc. The translocation and bioconcentration factors for M. deeringiana characterize it as a promising candidate to phytostabilize multi-metal contaminated soils.
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Affiliation(s)
- Cácio Luiz Boechat
- Cinobelina Elvas, Agronomy Department, Federal University of Piauí, BR 135, km 3, Planalto Horizonte, Bom Jesus, PI, Brazil.
| | - Patricia Giovanella
- Soil Department, Federal University of Rio Grande do Sul, Porto Alegre, RS, Brazil
| | - Magno Batista Amorim
- Federal Institute of Education Science and Technology of Rondônia, Colorado do Oeste, RO, Brazil
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1146
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Zhou X, Fu L, Xia Y, Zheng L, Chen C, Shen Z, Chen Y. Arbuscular mycorrhizal fungi enhance the copper tolerance of Tagetes patula through the sorption and barrier mechanisms of intraradical hyphae. Metallomics 2017; 9:936-948. [DOI: 10.1039/c7mt00072c] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The ultrastructure of transverse sections of root tips ofT. patulawith and without AMF inoculation and Cu content determined by energy spectrum analysis.
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Affiliation(s)
- Xishi Zhou
- College of Life Sciences
- Nanjing Agricultural University
- Nanjing 210095
- China
- Jiangsu Collaborative Innovation Center for Solid Organic Waste Resource
| | - Lei Fu
- College of Life Sciences
- Nanjing Agricultural University
- Nanjing 210095
- China
- Jiangsu Collaborative Innovation Center for Solid Organic Waste Resource
| | - Yan Xia
- College of Life Sciences
- Nanjing Agricultural University
- Nanjing 210095
- China
- Jiangsu Collaborative Innovation Center for Solid Organic Waste Resource
| | - Luqing Zheng
- College of Life Sciences
- Nanjing Agricultural University
- Nanjing 210095
- China
- Jiangsu Collaborative Innovation Center for Solid Organic Waste Resource
| | - Chen Chen
- College of Life Sciences
- Nanjing Agricultural University
- Nanjing 210095
- China
- Jiangsu Collaborative Innovation Center for Solid Organic Waste Resource
| | - Zhenguo Shen
- College of Life Sciences
- Nanjing Agricultural University
- Nanjing 210095
- China
- Jiangsu Collaborative Innovation Center for Solid Organic Waste Resource
| | - Yahua Chen
- College of Life Sciences
- Nanjing Agricultural University
- Nanjing 210095
- China
- Jiangsu Collaborative Innovation Center for Solid Organic Waste Resource
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1147
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Sidhu GPS, Singh HP, Batish DR, Kohli RK. Tolerance and hyperaccumulation of cadmium by a wild, unpalatable herb Coronopus didymus (L.) Sm. (Brassicaceae). ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2017; 135:209-215. [PMID: 27744137 DOI: 10.1016/j.ecoenv.2016.10.001] [Citation(s) in RCA: 73] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/07/2016] [Revised: 09/15/2016] [Accepted: 10/03/2016] [Indexed: 06/06/2023]
Abstract
The potential of a wild, unpalatable plant Coronopus didymus was investigated for the first time in terms of its capability to tolerate and accumulate cadmium (Cd) for phytoremediation purposes. A screenhouse experiment for 6 weeks was conducted to evaluate the effect of Cd from 100 to 400mgkg-1 on growth, biomass, photosynthetic apparatus, Cd uptake and accumulation in C. didymus plants. Application of Cd facilitates the growth of the plants whereas at higher levels a slight reduction was noticed. The concentration of Cd in roots and shoots reached a maximum of 867.2 and 864.5mgkg-1 DW respectively, at 400mgkg-1Cd treatment. Cd exposure increased the generation of superoxide anion (O2•-), H2O2 content, MDA level and antioxidative response (SOD, CAT and POD) in roots and shoots of C. didymus. However, a slight decline in SOD and CAT activities were noticed in roots at highest Cd treatment (400mgkg-1). The bioconcentration (BCF) values for all the concentrations were ˃1 and the translocation factor (TF) values were ˂ 1 at lower level but reached 1 at highest Cd concentration. Thus, C. didymus satisfies the conditions required for hyperaccumulator plants and may be practically employed to alleviate Cd from contaminated soils.
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Affiliation(s)
| | - Harminder Pal Singh
- Department of Environment Studies, Panjab University, Chandigarh 160014, India
| | - Daizy R Batish
- Department of Botany, Panjab University, Chandigarh 160014, India
| | - Ravinder Kumar Kohli
- Department of Botany, Panjab University, Chandigarh 160014, India; Central University of Punjab, Mansa Road, Bathinda 151001, India
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1148
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Feng W, Xiao K, Zhou W, Zhu D, Zhou Y, Yuan Y, Xiao N, Wan X, Hua Y, Zhao J. Analysis of utilization technologies for Eichhornia crassipes biomass harvested after restoration of wastewater. BIORESOURCE TECHNOLOGY 2017; 223:287-295. [PMID: 27780621 DOI: 10.1016/j.biortech.2016.10.047] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/03/2016] [Revised: 10/16/2016] [Accepted: 10/17/2016] [Indexed: 05/08/2023]
Abstract
Eichhornia crassipes (EC, water hyacinth) has gained attention due to its alarming reproductive capacity, which subsequently leads to serious ecological damage of water in many eutrophic lakes in the world. The traditional mechanical removal methods have disadvantages. They squander this valuable lignocellulosic resource. Meanwhile, there is a bottleneck for the subsequently reasonable and efficient utilization of EC biomass on a large scale after phytoremediation of polluted water using EC. As a result, the exploration of effective EC utilization technologies has become a popular research field. After years of exploration and amelioration, there have been significant breakthroughs in this research area, including the synthesis of excellent EC cellulose-derived materials, innovative bioenergy production, etc. This review organizes the research of the utilization of the EC biomass among several important fields and then analyses the advantages and disadvantages for each pathway. Finally, comprehensive EC utilization technologies are proposed as a reference.
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Affiliation(s)
- Wei Feng
- Laboratory of Eco-Environmental Engineering, Microelement Research Center of Huazhong Agricultural University; Key Laboratory of Arable Land Conservation (Middle and Lower Reaches of Yangtze River), Ministry of Agriculture, China
| | - Kai Xiao
- Laboratory of Eco-Environmental Engineering, Microelement Research Center of Huazhong Agricultural University; Key Laboratory of Arable Land Conservation (Middle and Lower Reaches of Yangtze River), Ministry of Agriculture, China
| | - Wenbing Zhou
- Laboratory of Eco-Environmental Engineering, Microelement Research Center of Huazhong Agricultural University; Key Laboratory of Arable Land Conservation (Middle and Lower Reaches of Yangtze River), Ministry of Agriculture, China; Collaborative Innovation Center of the Healthy Pig Breeding (Hubei Province), China.
| | - Duanwei Zhu
- Laboratory of Eco-Environmental Engineering, Microelement Research Center of Huazhong Agricultural University; Key Laboratory of Arable Land Conservation (Middle and Lower Reaches of Yangtze River), Ministry of Agriculture, China; Collaborative Innovation Center of the Healthy Pig Breeding (Hubei Province), China
| | - Yiyong Zhou
- State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, China
| | - Yu Yuan
- Laboratory of Eco-Environmental Engineering, Microelement Research Center of Huazhong Agricultural University; Key Laboratory of Arable Land Conservation (Middle and Lower Reaches of Yangtze River), Ministry of Agriculture, China
| | - Naidong Xiao
- Laboratory of Eco-Environmental Engineering, Microelement Research Center of Huazhong Agricultural University; Key Laboratory of Arable Land Conservation (Middle and Lower Reaches of Yangtze River), Ministry of Agriculture, China; Collaborative Innovation Center of the Healthy Pig Breeding (Hubei Province), China
| | - Xiaoqiong Wan
- Laboratory of Eco-Environmental Engineering, Microelement Research Center of Huazhong Agricultural University; Key Laboratory of Arable Land Conservation (Middle and Lower Reaches of Yangtze River), Ministry of Agriculture, China
| | - Yumei Hua
- Laboratory of Eco-Environmental Engineering, Microelement Research Center of Huazhong Agricultural University; Key Laboratory of Arable Land Conservation (Middle and Lower Reaches of Yangtze River), Ministry of Agriculture, China
| | - Jianwei Zhao
- Laboratory of Eco-Environmental Engineering, Microelement Research Center of Huazhong Agricultural University; Key Laboratory of Arable Land Conservation (Middle and Lower Reaches of Yangtze River), Ministry of Agriculture, China
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1149
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Skiba E, Kobyłecka J, Wolf WM. Influence of 2,4-D and MCPA herbicides on uptake and translocation of heavy metals in wheat (Triticum aestivum L.). ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2017; 220:882-890. [PMID: 27836479 DOI: 10.1016/j.envpol.2016.10.072] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/30/2016] [Revised: 10/19/2016] [Accepted: 10/25/2016] [Indexed: 05/22/2023]
Abstract
The aim of the study was to estimate the influence of the 2,4-dichlorophenoxy acetic acid and 2-methyl-4-chlorophenoxyacetic acid on the uptake and translocation of Cd, Co, Ni, Cu, Zn, Pb and Mn by wheat (Triticum aestivum L.). Two farmland soils typical for the central Polish rural environment were used. Studies involved soil analyses, contents of bioavailable, exchangeable and total forms for all investigated metals. Atomic absorption spectrometry was used to determine the concentration of the elements. The best correlation between the herbicide rate and the metal concentration was visibly for the underground part of plants. Analysis of variance proved that herbicide treatment of wheat frequently influences the metal transfer from soil and their concentration in roots and shoots. In particular, higher herbicide rates prompted the significant increase of all metals concentration in roots. Additionally, transfer coefficients depended on the type of soil and the herbicide rate applied. Uptake of metals may be also influenced by the formation of sparingly water-soluble metal-herbicide complexes. Its intensity would then depend on the solubility of particular chemical entity with the low solvable Pb, Cu and Cd complexes being the least mobile.
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Affiliation(s)
- Elżbieta Skiba
- Institute of General and Ecological Chemistry, Lodz University of Technology, Żeromskiego 116, 90-924 Łódź, Poland.
| | - Joanna Kobyłecka
- Institute of General and Ecological Chemistry, Lodz University of Technology, Żeromskiego 116, 90-924 Łódź, Poland
| | - Wojciech M Wolf
- Institute of General and Ecological Chemistry, Lodz University of Technology, Żeromskiego 116, 90-924 Łódź, Poland
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1150
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Mota JF, Garrido-Becerra JA, Merlo ME, Medina-Cazorla JM, Sánchez-Gómez P. The Edaphism: Gypsum, Dolomite and Serpentine Flora and Vegetation. THE VEGETATION OF THE IBERIAN PENINSULA 2017. [DOI: 10.1007/978-3-319-54867-8_6] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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