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Pan G, Wei Y, Zhao N, Gu M, He B, Wang X. Effects of Claroideoglomus etunicatum Fungi Inoculation on Arsenic Uptake by Maize and Pteris vittata L. TOXICS 2022; 10:574. [PMID: 36287853 PMCID: PMC9611965 DOI: 10.3390/toxics10100574] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/30/2022] [Revised: 09/24/2022] [Accepted: 09/27/2022] [Indexed: 06/16/2023]
Abstract
The intercropping of arsenic (As) hyperaccumulator Chinese brake fern (Pterisvittata L.) with maize (Zea mays L.) is being widely utilized to enhance phytoremediation without impeding agricultural production. Arbuscular mycorrhizal (AM) fungi can regulate the physiological and molecular responses of plants in tolerating heavy metal stress. We studied the effects of inoculation with AM fungi on As uptake by maize and P. vittata grown in soil contaminated with As. The results show that infection with the fungus Claroideoglomus etunicatum (Ce) increased the biomass of maize and P. vittata. Moreover, infection with Ce significantly reduced the accumulation of As and the coefficient for root-shoot transport of As in maize, whereas it enhanced the accumulation of As and coefficient for root-shoot transport of As in P. vittata. Infection with Ce led to a high content of available As in the soil planted with P. vittata, while there was a lower content of available As in the soil planted with maize. The different concentrations of available As in the soils suggest that inoculation with Ce may enhance the secretion of organic acids, particularly citric acid and tartaric acid, by maize roots and promote rhizosphere acidification, which then causes a decrease in As uptake by maize. Inoculation with Ce decreased the secretion of citric acid from P. vittata and promoted rhizosphere alkalization, which then caused an increase in As uptake by P. vittata and maize. Thus, co-combining AM fungi in the intercropping of the hyperaccumulator P. vittata with maize could be a promising approach to improving the efficiency of remediating As-contaminated soil.
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Affiliation(s)
| | | | | | | | | | - Xueli Wang
- Guangxi Key Laboratory for Agro-Environment and Agro-Products Safety, State Key Laboratory for Conservation and Utilization of Subtropical Agri–Bioresources, National Demonstration Center for Experimental Plant Science Education, College of Agriculture, Guangxi University, Nanning 530004, China
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2
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Saboor A, Ali MA, Danish S, Ahmed N, Fahad S, Datta R, Ansari MJ, Nasif O, Rahman MHU, Glick BR. Effect of arbuscular mycorrhizal fungi on the physiological functioning of maize under zinc-deficient soils. Sci Rep 2021; 11:18468. [PMID: 34531432 PMCID: PMC8445980 DOI: 10.1038/s41598-021-97742-1] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2021] [Accepted: 08/30/2021] [Indexed: 11/28/2022] Open
Abstract
Zinc (Zn) deficiency can severely inhibit plant growth, yield, and enzymatic activities. Zn plays a vital role in various enzymatic activities in plants. Arbuscular mycorrhizal fungi (AMF) play a crucial role in improving the plant's Zn nutrition and mitigating Zn stress effects on plants. The current study was conducted to compare the response of inoculated and non-inoculated maize (YH 1898) in the presence of different levels of zinc under greenhouse conditions under a Zn deficient condition. There were two mycorrhizal levels (i.e., M + with mycorrhizae, M- without mycorrhizae) and five Zn levels (i.e., 0, 1.5, 3, 6, and 12 mg kg-1), with three replicates following completely randomized design. At the vegetative stage (before tillering), biochemical, physiological, and agronomic attributes were measured. The results showed that maize plants previously inoculated with AMF had higher gaseous exchange traits, i.e., a higher stomatal conductance rate, favoring an increased photosynthetic rate. Improvement in antioxidant enzyme activity was also observed in inoculated compared to non-inoculated maize plants. Moreover, AMF inoculation also played a beneficial role in nutrients availability and its uptake by plants. Higher Zn12 (12 mg Zn kg-1 soil) treatment accumulated a higher Zn concentration in soil, root, and shoot in AMF-inoculated than in non-inoculated maize plants. These results are consistent with mycorrhizal symbiosis beneficial role for maize physiological functioning in Zn deficient soil conditions. Additionally, AMF inoculation mitigated the stress conditions and assisted nutrient uptake by maize.
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Affiliation(s)
- Abdul Saboor
- Department of Soil Science, Faculty of Agricultural Sciences and Technology, Bahauddin Zakariya University, Multan, 60800, Pakistan
| | - Muhammad Arif Ali
- Department of Soil Science, Faculty of Agricultural Sciences and Technology, Bahauddin Zakariya University, Multan, 60800, Pakistan.
| | - Subhan Danish
- Department of Soil Science, Faculty of Agricultural Sciences and Technology, Bahauddin Zakariya University, Multan, 60800, Pakistan.
- Department of Geology and Pedology, Faculty of Forestry and Wood Technology, Mendel University in Brno, Zemedelska1, 61300, Brno, Czech Republic.
| | - Niaz Ahmed
- Department of Soil Science, Faculty of Agricultural Sciences and Technology, Bahauddin Zakariya University, Multan, 60800, Pakistan
| | - Shah Fahad
- Department of Agronomy, The University of Haripur, Haripur, 22620, Pakistan
| | - Rahul Datta
- Department of Geology and Pedology, Faculty of Forestry and Wood Technology, Mendel University in Brno, Zemedelska1, 61300, Brno, Czech Republic
| | - Mohammad Javed Ansari
- Department of Botany, Hindu College Moradabad (Mahatma Jyotiba Phule Rohilkhand University Bareilly), Bareilly, 244001, India
| | - Omaima Nasif
- Department of Physiology, College of Medicine and King Khalid University Hospital, King Saud University, Medical City, PO Box-2925, Riyadh, 11461, Saudi Arabia
| | | | - Bernard R Glick
- Department of Biology, University of Waterloo, Waterloo, ON, N2L 3G1, Canada
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Lebrun M, Miard F, Nandillon R, Morabito D, Bourgerie S. Effect of biochar, iron sulfate and poultry manure application on the phytotoxicity of a former tin mine. INTERNATIONAL JOURNAL OF PHYTOREMEDIATION 2021; 23:1222-1230. [PMID: 33825566 DOI: 10.1080/15226514.2021.1889964] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
In phytomanagement approach the application of a combination of amendments is an option for remediating arsenic polluted areas and valorized biomass obtained. Various amendments can be used. Biochar has been shown to reduce metal(loid) availability, and increase soil fertility, while iron sulfate has a considerable As binding capacity, and poultry manure is a source of nutrients. A phytotoxicity test was performed by applying the three amendments (2% biochar, 0.15%, 0.30% and 0.45% iron sulfate and 0.4% poultry manure) to a former tin mine technosol, to investigate their effects on (i) soil pore water properties, (ii) metal(loid) immobilization and (iii) Phaseolus vulgaris L. growth, used as a bioindicator. Biochar addition alone did not affect soil properties or plant parameters. However, the addition of iron sulfate acidified the soil, decreased soil pore water As concentrations, and increased the ones of Fe and Pb. It also improved plant growth, and reduced As and Pb aerial and root concentrations. Finally, the addition of poultry manure had no effect on soil and plants. Based on our results, the combination of iron sulfate with biochar may be a solution for reducing soil toxicity of the Abbaretz mining technosol, improving its fertility, and thus ameliorating plant growth.Novelty statement:The work presented in this manuscript describes the effect of amendment application, i.e., biochar, chicken dung and/or iron sulfate, on soil properties, metals availability and dwarf bean growth, plant used as bioindicator.Our results showed that the combination of a low amount of iron sulfate with biochar is the strategy to reduce soil toxicity, improved its fertility and consequently authorizes plant growth.This study is one of the first describing the effects of combined amendments on a mining soil properties with focusing on metal(loid) mobility.
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Affiliation(s)
- Manhattan Lebrun
- University of Orléans, INRA USC1328, Orléans, France
- Department of Biosciences and Territory, University of Molise, Pesche, Italy
| | - Florie Miard
- University of Orléans, INRA USC1328, Orléans, France
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Lebrun M, Nandillon R, Miard F, Le Forestier L, Morabito D, Bourgerie S. Effects of biochar, ochre and manure amendments associated with a metallicolous ecotype of Agrostis capillaris on As and Pb stabilization of a former mine technosol. ENVIRONMENTAL GEOCHEMISTRY AND HEALTH 2021; 43:1491-1505. [PMID: 32424789 DOI: 10.1007/s10653-020-00592-5] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/27/2019] [Accepted: 05/01/2020] [Indexed: 06/11/2023]
Abstract
Metal(loid) soil pollution is a major environmental and health issue, requiring these areas to be remediated, for example through phytoremediation processes. In order to allow proper plant establishment and growth, amendments must be applied to highly contaminated and poorly fertile soils. Amendments are diverse, but many studies have shown the beneficial effects of biochar, manure and ochre, although studies on their combined use are scarce. Moreover, no studies have evaluated the effect of these combined amendments on endemic plant growth. Endemic plants growing on contaminated soils showed higher tolerance toward pollutants compared to plants coming from unpolluted areas. Therefore, the aim of the present study was to evaluate both the effect of amendments (single or combined) on the physicochemical properties of a former mining technosol, and the growth and metal(loid) accumulation ability of endemic Agrostis capillaris plants. This study revealed an improvement in the soil physicochemical properties following the application of amendments, with combined amendments showing better results than the application of just one. On top of this, Agrostis plants performed better on the amended technosols, especially the ones receiving manure, due to its high nutrient content. Finally, based on soil properties, plant growth and the metal(loid) accumulation profile, the use of biochar combined with manure seems to be the most appropriate treatment. Indeed, this treatment showed an improvement in both soil fertility and plant growth. Moreover, Agrostis plants grown in these conditions were among those showing higher root metal(loid) concentration associated with a lower translocation toward aerial parts.
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Affiliation(s)
- Manhattan Lebrun
- LBLGC INRA USC1328, Université d'Orléans, Rue de Chartres, BP 6759, 45067, Orléans Cedex 2, France
- Dipartimento di Bioscienze e Territorio, Università degli Studi del Molise, 86090, Pesche, Italy
| | - Romain Nandillon
- LBLGC INRA USC1328, Université d'Orléans, Rue de Chartres, BP 6759, 45067, Orléans Cedex 2, France
- IDDEA, Environmental Consulting Engineering, 45160, Olivet, France
- ISTO, UMR 7327, BRGM, BP 36009, 45060, Orléans, France
| | - Florie Miard
- LBLGC INRA USC1328, Université d'Orléans, Rue de Chartres, BP 6759, 45067, Orléans Cedex 2, France
| | - Lydie Le Forestier
- CNRS, BRGM, ISTO, UMR 7327, Université d'Orléans, 45071, Orléans, France
| | - Domenico Morabito
- LBLGC INRA USC1328, Université d'Orléans, Rue de Chartres, BP 6759, 45067, Orléans Cedex 2, France
| | - Sylvain Bourgerie
- LBLGC INRA USC1328, Université d'Orléans, Rue de Chartres, BP 6759, 45067, Orléans Cedex 2, France.
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Yang X, Qin J, Li J, Lai Z, Li H. Upland rice intercropping with Solanum nigrum inoculated with arbuscular mycorrhizal fungi reduces grain Cd while promoting phytoremediation of Cd-contaminated soil. JOURNAL OF HAZARDOUS MATERIALS 2021; 406:124325. [PMID: 33153785 DOI: 10.1016/j.jhazmat.2020.124325] [Citation(s) in RCA: 38] [Impact Index Per Article: 12.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/09/2020] [Revised: 10/13/2020] [Accepted: 10/15/2020] [Indexed: 05/22/2023]
Abstract
Intercropping of hyperaccumulators with crops is a promising measure to enhance phytoremediation without impeding agricultural production. A Cd-hyperaccumulator, Solanum nigrum L. (S. nigrum), was intercropped with upland rice in a pot and rhizo-box experiment with Cd-contaminated soil to evaluate the combined effects of intercropping and arbuscular mycorrhizal fungi on plant growth and Cd accumulation. The results showed that, compared with monoculture, the combined treatments markedly decreased Cd concentration in rice parts, with the lowest Cd concentration in brown rice (reducing by 64.5%). The spatial distribution of root surface area and DTPA-Cd in the rhizo-box indicated competitive Cd uptake by neighbouring S. nigrum. Moreover, the combined treatments reduced Nramp5 expression but increased HMA3 levels in rice roots, leading to lower bioaccumulation and transfer coefficients. Additionally, fewer secreted organic acids and a higher rhizosphere pH were observed in rice. Conversely, the combined treatments promoted biomass, root length, root surface area, and decreased the rhizosphere pH in S. nigrum, thus increasing the Cd accumulation. Although the intercropping system with AMF inoculation notably reduced rice yield, the land-use efficiency was higher. These results provided insights into the role of AMF in the upland rice/S. nigrum system and demonstrated an alternative system for Cd phytoremediation.
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Affiliation(s)
- Xu Yang
- College of Natural Resources and Environment, South China Agricultural University/Key Laboratory of Agro-Environment in the Tropics, Ministry of Agriculture of China, Guangzhou 510642, China; Guangdong Provincial Key Laboratory of Eco-Circular Agriculture/Guangdong Engineering Research Center for Modern Eco-agriculture and Circular Agriculture, Guangzhou 510642, China
| | - Junhao Qin
- College of Natural Resources and Environment, South China Agricultural University/Key Laboratory of Agro-Environment in the Tropics, Ministry of Agriculture of China, Guangzhou 510642, China; Guangdong Provincial Key Laboratory of Eco-Circular Agriculture/Guangdong Engineering Research Center for Modern Eco-agriculture and Circular Agriculture, Guangzhou 510642, China
| | - Jiachun Li
- Guangdong Provincial Key Laboratory of Eco-Circular Agriculture/Guangdong Engineering Research Center for Modern Eco-agriculture and Circular Agriculture, Guangzhou 510642, China
| | - Zhenai Lai
- Guangdong Provincial Key Laboratory of Eco-Circular Agriculture/Guangdong Engineering Research Center for Modern Eco-agriculture and Circular Agriculture, Guangzhou 510642, China
| | - Huashou Li
- College of Natural Resources and Environment, South China Agricultural University/Key Laboratory of Agro-Environment in the Tropics, Ministry of Agriculture of China, Guangzhou 510642, China; Guangdong Provincial Key Laboratory of Eco-Circular Agriculture/Guangdong Engineering Research Center for Modern Eco-agriculture and Circular Agriculture, Guangzhou 510642, China.
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Cheraghi-Aliakbari S, Beheshti-Alagha A, Ranjbar F, Nosratti I. Comparison of Myagrum perfoliatum and Sophora alopecuroides in phytoremediation of Cd- and Pb-contaminated soils: A chemical and biological investigation. CHEMOSPHERE 2020; 259:127450. [PMID: 32593006 DOI: 10.1016/j.chemosphere.2020.127450] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/02/2020] [Revised: 06/13/2020] [Accepted: 06/15/2020] [Indexed: 06/11/2023]
Abstract
Phytoremediation is one of the most cost-effective and environmentally friendly ways to reduce adverse effects of cadmium (Cd) and lead (Pb) in the environment. The present study was conducted to investigate the bioaccumulation factor (BF) and translocation factor (TF) of Cd and Pb in muskweed (Myagrum perfoliatum) and foxtail sophora (Sophora alopecuroides). The impact of contamination on some growth responses of plants and soil biological indicators was also evaluated. A non-contaminated soil sample was divided into several subsamples: one subsample was left as control (without contamination) and the others were separately contaminated with three levels of Cd (3, 5, and 10 mg kg-1) and Pb (100, 300, and 600 mg kg-1). Pot experiments were performed under greenhouse conditions. The BF values of Cd were greater than 1 at all contamination levels indicating the potential of muskweed and foxtail sophora for the uptake and phytostabilization of Cd. The only TF > 1 was obtained for Cd in muskweed grown at the highest Cd contamination level. The TF values of Pb were much lower than those obtained for Cd indicating that Cd was more translocated from root to aerial parts of muskweed and foxtail sophora compared to Pb. The highest contamination levels of Cd and Pb did not significantly affect growth responses of muskweed and foxtail sophora. Furthermore, the cultivation of muskweed and foxtail sophora reduced the impact of Cd and Pb contamination on biological indicators including carbon mineralization ratio (CMR), substrate-induced respiration (SIR), microbial biomass carbon (MBC), and metabolic quotient (qCO2).
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Affiliation(s)
- Sepideh Cheraghi-Aliakbari
- Department of Soil Science, College of Agriculture and Natural Resources, Razi University, Kermanshah, Iran
| | - Ali Beheshti-Alagha
- Department of Soil Science, College of Agriculture and Natural Resources, Razi University, Kermanshah, Iran
| | - Faranak Ranjbar
- Department of Soil Science, College of Agriculture and Natural Resources, Razi University, Kermanshah, Iran.
| | - Iraj Nosratti
- Department of Agronomy and Plant Breeding, College of Agriculture and Natural Resources, Razi University, Kermanshah, Iran
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Yang W, Dai H, Skuza L, Wei S. The front-heavy and back-light nitrogen application mode to increase stem and leaf biomass significantly improved cadmium accumulation in Solanum nigrum L. JOURNAL OF HAZARDOUS MATERIALS 2020; 393:122482. [PMID: 32169816 DOI: 10.1016/j.jhazmat.2020.122482] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/30/2019] [Revised: 02/29/2020] [Accepted: 03/05/2020] [Indexed: 06/10/2023]
Abstract
Differently from the goal of fertilization in agricultural production to enhance the yield of seeds, the aim of present work focused on cadmium (Cd) phytoremediation is to increase the stem and leaf biomasses as much as possible due to they are the main organs of a hyperaccumulator extracting risk elements from soil. This experiment compared the effects of different nitrogen (N) application modes on Cd accumulation from soil by Solanum nigrum L. The results showed that stem and leaf biomasses of S. nigrum reached the maximum values with the N fertilizer application at Mode 4 (50 %: 40 %: 10 %, i.e. the front-heavy and back-light application of nitrogen fertilizer). In particular, application of N as (NH4)2SO4 and CH4N2O produced the greatest increases in S. nigrum biomasses compared to the control (CK2) with no N fertilizer. N concentration of S. nigrum and N fertilizer productivity under its different treatments were consistent with the above results. Similarly, Cd capacities were the highest in shoots of S. nigrum in Mode 4 either due to their Cd concentration without affected by N fertilizers. Thus, Mode 4 N application showed very important scientific merit for effective Cd phytoextraction in the real conditions.
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Affiliation(s)
- Wei Yang
- Key Laboratory of Pollution Ecology and Environment Engineering, Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang, 110016, China; University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Huiping Dai
- College of Biological Science & Engineering, Shaanxi Province Key Laboratory of Bio-resources, Shaanxi University of Technology, Hanzhong, 723001, China.
| | - Lidia Skuza
- Department of Molecular Biology and Cytology, Institute for Research on Biodiversity, University of Szczecin, Szczecin, 71-415, Poland
| | - Shuhe Wei
- Key Laboratory of Pollution Ecology and Environment Engineering, Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang, 110016, China.
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Sousa B, Soares C, Oliveira F, Martins M, Branco-Neves S, Barbosa B, Ataíde I, Teixeira J, Azenha M, Azevedo RA, Fidalgo F. Foliar application of 24-epibrassinolide improves Solanum nigrum L. tolerance to high levels of Zn without affecting its remediation potential. CHEMOSPHERE 2020; 244:125579. [PMID: 32050351 DOI: 10.1016/j.chemosphere.2019.125579] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/23/2019] [Revised: 12/04/2019] [Accepted: 12/07/2019] [Indexed: 06/10/2023]
Abstract
Although Solanum nigrum L. is a phytoremediator for different metals, its growth and physiology are still compromised by toxic levels of zinc (Zn). Thus, the development of eco-friendly strategies to enhance its tolerance, maintaining remediation potential is of special interest. This study evaluated the potential of 24-epibrassinolide (24-EBL) to boost S. nigrum defence against Zn towards a better growth rate and remediation potential. After 24 days of exposure, the results revealed that Zn-mediated inhibitory effects on biomass and biometry were efficiently mitigated upon application of 24-EBL, without affecting Zn accumulation. The evaluation of oxidative stress markers reported that Zn excess stimulated the accumulation of superoxide anion (O2.-), but reduced hydrogen peroxide (H2O2) levels, while not altering lipid peroxidation (LP). This was accompanied by an up-regulation of the antioxidant system, especially proline, superoxide dismutase (SOD) and ascorbate peroxidase (APX) in both organs, and ascorbate in roots of Zn-exposed plants. Foliar application of 24-EBL, however, induced distinctive effects, lowering proline levels in both organs, as well as APX activity in shoots and SOD in roots, whilst stimulating GSH and total thiols in both organs, as well as SOD and APX activity, in shoots and in roots, respectively. Probably due to a better antioxidant efficiency, levels of O2.- and H2O2 in pre-treated plants remained identical to the control, while LP further decreased in shoots. Overall, our results indicate a protective effect of 24-EBL on S. nigrum response to excess Zn, contributing for a better tolerance and growth rate, without disturbing its phytoremediation potential.
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Affiliation(s)
- Bruno Sousa
- GreenUPorto - Sustainable Agrifood Production Research Centre, Biology Department, Faculty of Sciences of University of Porto, Rua do Campo Alegre s/n, 4169-007, Porto, Portugal.
| | - Cristiano Soares
- GreenUPorto - Sustainable Agrifood Production Research Centre, Biology Department, Faculty of Sciences of University of Porto, Rua do Campo Alegre s/n, 4169-007, Porto, Portugal
| | - Francisca Oliveira
- GreenUPorto - Sustainable Agrifood Production Research Centre, Biology Department, Faculty of Sciences of University of Porto, Rua do Campo Alegre s/n, 4169-007, Porto, Portugal
| | - Maria Martins
- GreenUPorto - Sustainable Agrifood Production Research Centre, Biology Department, Faculty of Sciences of University of Porto, Rua do Campo Alegre s/n, 4169-007, Porto, Portugal
| | - Simão Branco-Neves
- GreenUPorto - Sustainable Agrifood Production Research Centre, Biology Department, Faculty of Sciences of University of Porto, Rua do Campo Alegre s/n, 4169-007, Porto, Portugal
| | - Beatriz Barbosa
- Colégio Internato dos Carvalhos (CIC), Rua Moeiro s/n, 4415-133, Pedroso, Portugal
| | - Inês Ataíde
- Colégio Internato dos Carvalhos (CIC), Rua Moeiro s/n, 4415-133, Pedroso, Portugal
| | - Jorge Teixeira
- GreenUPorto - Sustainable Agrifood Production Research Centre, Biology Department, Faculty of Sciences of University of Porto, Rua do Campo Alegre s/n, 4169-007, Porto, Portugal
| | - Manuel Azenha
- CIQ-UP, Chemistry and Biochemistry Department, Faculty of Sciences, University of Porto, Rua do Campo Alegre s/n, 4169-007, Porto, Portugal
| | - Ricardo Antunes Azevedo
- Departamento de Genética, Escola Superior de Agricultura "Luiz de Queiroz", Universidade de São Paulo, Av. Pádua Dias, 11, CP. 83, CEP 13418-900, Piracicaba, Brazil
| | - Fernanda Fidalgo
- GreenUPorto - Sustainable Agrifood Production Research Centre, Biology Department, Faculty of Sciences of University of Porto, Rua do Campo Alegre s/n, 4169-007, Porto, Portugal
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Sharma A, Soares C, Sousa B, Martins M, Kumar V, Shahzad B, Sidhu GPS, Bali AS, Asgher M, Bhardwaj R, Thukral AK, Fidalgo F, Zheng B. Nitric oxide-mediated regulation of oxidative stress in plants under metal stress: a review on molecular and biochemical aspects. PHYSIOLOGIA PLANTARUM 2020; 168:318-344. [PMID: 31240720 DOI: 10.1111/ppl.13004] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/22/2019] [Revised: 06/17/2019] [Accepted: 06/24/2019] [Indexed: 05/07/2023]
Abstract
Given their sessile nature, plants continuously face unfavorable conditions throughout their life cycle, including water scarcity, extreme temperatures and soil pollution. Among all, metal(loid)s are one of the main classes of contaminants worldwide, posing a serious threat to plant growth and development. When in excess, metals which include both essential and non-essential elements, quickly become phytotoxic, inducing the occurrence of oxidative stress. In this way, in order to ensure food production and safety, attempts to enhance plant tolerance to metal(loid)s are urgently needed. Nitric oxide (NO) is recognized as a signaling molecule, highly involved in multiple physiological events, like the response of plants to abiotic stress. Thus, substantial efforts have been made to assess NO potential in alleviating metal-induced oxidative stress in plants. In this review, an updated overview of NO-mediated protection against metal toxicity is provided. After carefully reviewing NO biosynthetic pathways, focus was given to the interaction between NO and the redox homeostasis followed by photosynthetic performance of plants under metal excess.
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Affiliation(s)
- Anket Sharma
- State Key Laboratory of Subtropical Silviculture, Zhejiang A&F University, Hangzhou, 311300, China
| | - Cristiano Soares
- GreenUPorto - Sustainable Agrifood Production Research Centre, Biology Department, Faculty of Sciences of University of Porto, Porto, 4169-007, Portugal
| | - Bruno Sousa
- GreenUPorto - Sustainable Agrifood Production Research Centre, Biology Department, Faculty of Sciences of University of Porto, Porto, 4169-007, Portugal
| | - Maria Martins
- GreenUPorto - Sustainable Agrifood Production Research Centre, Biology Department, Faculty of Sciences of University of Porto, Porto, 4169-007, Portugal
| | - Vinod Kumar
- Department of Botany, DAV University, Jalandhar, 144012, India
| | - Babar Shahzad
- School of Land and Food, University of Tasmania, Hobart, TAS, Australia
| | - Gagan P S Sidhu
- Department of Environment Education, Government College of Commerce and Business Administration, Chandigarh, 160047, India
| | - Aditi S Bali
- Department of Botany, M.C.M.D.A.V. College for Women, Chandigarh, India
| | - Mohd Asgher
- Plant Physiology and Biochemistry Laboratory, Department of Botany, School of Biosciences and Biotechnology, Baba Ghulam Shah Badshah University, Rajouri, 185234, India
| | - Renu Bhardwaj
- Plant Stress Physiology Laboratory, Department of Botanical and Environmental Sciences, Guru Nanak Dev University, Amritsar, 143005, India
| | - Ashwani K Thukral
- Plant Stress Physiology Laboratory, Department of Botanical and Environmental Sciences, Guru Nanak Dev University, Amritsar, 143005, India
| | - Fernanda Fidalgo
- GreenUPorto - Sustainable Agrifood Production Research Centre, Biology Department, Faculty of Sciences of University of Porto, Porto, 4169-007, Portugal
| | - Bingsong Zheng
- State Key Laboratory of Subtropical Silviculture, Zhejiang A&F University, Hangzhou, 311300, China
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Nandillon R, Lahwegue O, Miard F, Lebrun M, Gaillard M, Sabatier S, Battaglia-Brunet F, Morabito D, Bourgerie S. Potential use of biochar, compost and iron grit associated with Trifolium repens to stabilize Pb and As on a multi-contaminated technosol. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2019; 182:109432. [PMID: 31306919 DOI: 10.1016/j.ecoenv.2019.109432] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/04/2019] [Revised: 06/25/2019] [Accepted: 07/07/2019] [Indexed: 06/10/2023]
Abstract
Vegetation cover can be used in the phytomanagement of polluted areas by adding value to abandoned sites and reducing the dispersion of pollutants by erosion. Appropriate amendments, that allow both efficient plant growth and the immobilization of contaminants in the soil must be chosen in order to optimize the efficiency of this process. We used a mining technosol mainly contaminated by arsenic (1068 mg kg-1) and lead (23387 mg kg-1) to study the effect of three amendments (biochar, compost and iron grit) on (i) physico-chemical properties of the soil and soil pore water, (ii) metal(loid) mobility, bioavailability and bioaccessibility (CaCl2 and Simple Bioaccessibility Extraction Test (SBET)), and (iii) the capability of Trifolium repens to germinate and grow. All the amendments used increased the pH and electrical conductivity of the SPW, resulting in a 90% decrease in the concentration of lead in the soil pore water (SPW). We also demonstrated a decrease in Pb phytoavailability. The amendments allowed the establishment of a plant cover, although the addition of iron grit alone did not allow any clover germination. For the Pontgibaud technosol, the combination of the three amendments resulted in a significant decrease in As and Pb concentrations in clover tissues, mainly in the aerial organs. The amendments also made it possible for some of them to halve the phytoavailable fraction of arsenic. However, for compost, both the As concentrations in the SPW, and the bioavailable fraction of As increased. All the amendments used had contrasting effects on the bioaccessible fractions of metal(loid)s. The most efficient amendment combination was the addition of 5% biochar and 5% compost.
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Affiliation(s)
- R Nandillon
- University of Orléans, INRA USC1328, LBLGC EA1207, Orléans, France; IDDEA, Environmental Consulting Engineering, Olivet, France; BRGM, ISTO, UMR7327, Orléans, France
| | - O Lahwegue
- University of Orléans, INRA USC1328, LBLGC EA1207, Orléans, France
| | - F Miard
- University of Orléans, INRA USC1328, LBLGC EA1207, Orléans, France
| | - M Lebrun
- University of Orléans, INRA USC1328, LBLGC EA1207, Orléans, France; University of Molise, Dipartimento di Bioscienze e Territorio, 86090, Pesche, Italy
| | - M Gaillard
- IDDEA, Environmental Consulting Engineering, Olivet, France
| | - S Sabatier
- IDDEA, Environmental Consulting Engineering, Olivet, France
| | | | - D Morabito
- University of Orléans, INRA USC1328, LBLGC EA1207, Orléans, France.
| | - S Bourgerie
- University of Orléans, INRA USC1328, LBLGC EA1207, Orléans, France
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Li H, Li X, Xiang L, Zhao HM, Li YW, Cai QY, Zhu L, Mo CH, Wong MH. Phytoremediation of soil co-contaminated with Cd and BDE-209 using hyperaccumulator enhanced by AM fungi and surfactant. THE SCIENCE OF THE TOTAL ENVIRONMENT 2018; 613-614:447-455. [PMID: 28918276 DOI: 10.1016/j.scitotenv.2017.09.066] [Citation(s) in RCA: 41] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/14/2017] [Revised: 09/07/2017] [Accepted: 09/07/2017] [Indexed: 06/07/2023]
Abstract
Pot experiments were conducted to investigate the uptake and translocation of both Cd and decabromodiphenyl ether (BDE-209) in Solanum nigrum, under the treatments of two arbuscular mycorrhizal fungi [AMF, Funneliformis mosseae (FM) and Rhizophagus intraradices (RI)] and surfactant β-cyclodextrin (β-CD). Results showed that S. nigrum treated with either FM or β-CD significantly elevated shoot biomass and Cd concentrations and contents in shoots. The concentrations of BDE-209 in shoots and the dissipation and debromination efficiencies of BDE-209 in soil were significantly enhanced in S. nigrum treated with β-CD, inoculated with or without AMF. Moreover, significant positive correlations were found between the BDE-209 dissipation efficiency, the BDE-209 concentrations and contents in roots, and the soil enzymatic activities (polyphenol oxidase or dehydrogenase activities) and between the Cd and BDE-209 contents in shoots or roots. Higher concentrations of lower-brominated products and total PBDEs were detected in shoots than in roots suggesting that BDE-209 might be initially absorbed by roots, then translocated to shoots, and then degraded into lower brominated products in shoots. Considering the plant uptake of Cd and BDE-209 and the efficient removal of those chemicals in soils, the combination of S. nigrum and β-CD inoculated with or without AMF may be viable alternatives for phytoremediation of the co-contaminated soil.
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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
| | - Xing 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
| | - Lei Xiang
- 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
| | - Hai Ming Zhao
- 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
| | - Li Zhu
- 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
- 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; Consortium on Environment, Health, Education and Research (CHEER), Department of Science and Environmental Studies, The Education University of Hong Kong, Tai Po, Hong Kong, PR China.
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12
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Rehman MZU, Rizwan M, Ali S, Ok YS, Ishaque W, Nawaz MF, Akmal F, Waqar M. Remediation of heavy metal contaminated soils by using Solanum nigrum: A review. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2017; 143:236-248. [PMID: 28551581 DOI: 10.1016/j.ecoenv.2017.05.038] [Citation(s) in RCA: 75] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/08/2017] [Revised: 05/06/2017] [Accepted: 05/19/2017] [Indexed: 05/20/2023]
Abstract
Heavy metals are among the major environmental pollutants and the accumulation of these metals in soils is of great concern in agricultural production due to the toxic effects on crop growth and food quality. Phytoremediation is a promising technique which is being considered as an alternative and low-cost technology for the remediation of metal-contaminated soils. Solanum nigrum is widely studied for the remediation of heavy metal-contaminated soils owing to its ability for metal uptake and tolerance. S. nigrum can tolerate excess amount of certain metals through different mechanism including enhancing the activities of antioxidant enzymes and metal deposition in non-active parts of the plant. An overview of heavy metal uptake and tolerance in S. nigrum is given. Both endophytic and soil microorganisms can play a role in enhancing metal tolerance in S. nigrum. Additionally, optimization of soil management practices and exogenous application of amendments can also be used to enhance metal uptake and tolerance in this plant. The main objective of the present review is to highlight and discuss the recent progresses in using S. nigrum for remediation of metal contaminated soils.
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Affiliation(s)
- Muhammad Zia Ur Rehman
- Institute of Soil and Environmental Sciences, University of Agriculture, Faisalabad 38040, Pakistan
| | - Muhammad Rizwan
- Department of Environmental Sciences and Engineering, Government College University, Allama Iqbal Road, 38000 Faisalabad, Pakistan.
| | - Shafaqat Ali
- Department of Environmental Sciences and Engineering, Government College University, Allama Iqbal Road, 38000 Faisalabad, Pakistan
| | - Yong Sik Ok
- O-Jeong Eco-Resilience Institute (OJERI), Division of Environmental Science and Ecological Engineering, Korea University, Seoul, Republic of Korea
| | - Wajid Ishaque
- Nuclear Institute for Agriculture and Biology (NIAB), Faisalabad, Pakistan
| | - Muhammad Farrakh Nawaz
- Department of Forestry and Range Management, University of Agriculture, Faisalabad 38040, Pakistan
| | - Fatima Akmal
- Institute of Soil and Environmental Sciences, University of Agriculture, Faisalabad 38040, Pakistan
| | - Maqsooda Waqar
- Institute of Soil and Environmental Sciences, University of Agriculture, Faisalabad 38040, Pakistan
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13
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Oladipo OG, Olayinka A, Awotoye OO. Maize (Zea mays L.) performance in organically amended mine site soils. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2016; 181:435-442. [PMID: 27415409 DOI: 10.1016/j.jenvman.2016.07.009] [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: 11/30/2015] [Revised: 06/22/2016] [Accepted: 07/03/2016] [Indexed: 06/06/2023]
Abstract
Organic amendments play an important role in the eco-friendly remediation of degraded mine site soils. This study investigated the quality (essential nutrients and heavy metal content) of maize grown on organically amended soils from three active mines in Nigeria. Soil samples were collected randomly at 0-15 cm depth, air-dried and sieved. Five kg of soil were amended with poultry manure and sawdust (poultry manure only, sawdust only, poultry manure-sawdust mixtures in 3:1, 2:1 and 1:1 ratios) at 10 g kg(-1). Maize (Zea mays L.) seeds were planted and watered for two consecutive periods of 8 weeks, with the control and treatment experiments set up in the screenhouse in quadruples. Harvested tissues were weighed, dried, ground and digested. Chemical properties were determined using standard methods while atomic absorption spectrophotometry was used to determine total metal concentrations (Ca, Mg, Fe, Zn, Pb, Cd and Cu). ANOVA was used to test for significant differences among treatment groups in the various parameters. Application of poultry manure-sawdust mixtures significantly (p < 0.05) enhanced tissue dry matter yield, as well as N, P, K, and Na contents while Zn, Cd, Cu and Pb were immobilized to approximately 50-100%. Treatment with sawdust alone reduced tissue nutrient content resulting in depressed plant yield while poultry manure only though enhanced crop yield, contained higher heavy metal contents. Soil amendments comprised of poultry manure-sawdust mixtures can be effective remediation strategy for mine site soils, as these organic materials help replenish soil nutrients, immobilize heavy metals, and enhance food productivity.
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Affiliation(s)
- Oluwatosin Gbemisola Oladipo
- Unit for Environmental Sciences and Management, North West University, Potchefstroom, Private Bag X6001, Potchefstroom 2520, South Africa; Institute of Ecology and Environmental Science, Obafemi Awolowo University, Ile - Ife, Nigeria.
| | - Akinyemi Olayinka
- Department of Soil and Land Resources, Obafemi Awolowo University, Ile - Ife, Nigeria
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14
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Kushwaha A, Rani R, Kumar S, Gautam A. Heavy metal detoxification and tolerance mechanisms in plants: Implications for phytoremediation. ENVIRONMENTAL REVIEWS 2016. [PMID: 0 DOI: 10.1139/er-2015-0010] [Citation(s) in RCA: 52] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/04/2023]
Abstract
Heavy metals, such as cobalt, copper, manganese, molybdenum, and zinc, are essential in trace amounts for growth by plants and other living organisms. However, in excessive amounts these heavy metals have deleterious effects. Like other organisms, plants possess a variety of detoxification mechanisms to counter the harmful effects of heavy metals. These include the restriction of heavy metals by mycorrhizal association, binding with plant cell wall and root excretions, metal efflux from the plasma membrane, metal chelation by phytochelatins and metallothioneins, and compartmentalization within the vacuole. Phytoremediation is an emerging technology that uses plants and their associated rhizospheric microorganisms to remove pollutants from contaminated sites. This technology is inexpensive, efficient, and ecofriendly. This review focuses on potential cellular and molecular adaptations by plants that are necessary to tolerate heavy metal stress.
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Affiliation(s)
- Anamika Kushwaha
- Department of Biotechnology, Motilal Nehru National Institute of Technology, Teliyar Ganj, Allahabad
- Department of Biotechnology, Motilal Nehru National Institute of Technology, Teliyar Ganj, Allahabad
| | - Radha Rani
- Department of Biotechnology, Motilal Nehru National Institute of Technology, Teliyar Ganj, Allahabad
- Department of Biotechnology, Motilal Nehru National Institute of Technology, Teliyar Ganj, Allahabad
| | - Sanjay Kumar
- Department of Biotechnology, Motilal Nehru National Institute of Technology, Teliyar Ganj, Allahabad
- Department of Biotechnology, Motilal Nehru National Institute of Technology, Teliyar Ganj, Allahabad
| | - Aishvarya Gautam
- Department of Biotechnology, Motilal Nehru National Institute of Technology, Teliyar Ganj, Allahabad
- Department of Biotechnology, Motilal Nehru National Institute of Technology, Teliyar Ganj, Allahabad
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15
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Sevilla-Perea A, Mingorance MD. Field approach to mining-dump revegetation by application of sewage sludge co-compost and a commercial biofertilizer. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2015; 158:95-102. [PMID: 25979296 DOI: 10.1016/j.jenvman.2015.04.017] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/01/2014] [Revised: 04/06/2015] [Accepted: 04/09/2015] [Indexed: 06/04/2023]
Abstract
An approach was devised for revegetation of a mining dump soil, sited in a semiarid region, with basic pH as well as Fe and Mn enrichment. A field experiment was conducted involving the use of co-compost (a mixture of urban sewage sludge and plant remains) along with a commercial biofertilizer (a gel suspension which contains arbuscular mycorrhizal fungus) to reinforce the benefits of the former. Four treatments were studied: unamended soil; application of conditioners separately and in combination. Pistachio, caper, rosemary, thyme and juniper were planted. We evaluated the effects of the treatments using soil quality (physicochemical properties, total content of hazardous elements, nutrient availability, microbial biomass and enzyme activities) and plant establishment indicators (survival, growth, vigor, nutrient content in leaves, nutrient balances and mycorrhizal root colonization). Thyme and juniper did not show a suitable survival rate (<50%) whereas 70-100% of the pistachio, rosemary and caper survived for at least 27 months. In unamended soil, plant growth was severely hampered by P, N, K and Zn deficiencies as well as Fe and Mn excess. Overall, the treatments affected the soil and plant indicators as follows: biofertilizer + co-compost > co-compost > biofertilizer > unamended. The application of co-compost was therefore essential with regard to improving soil fertility; furthermore, it increased leaf N and P content, whereas leaf Fe and Mn concentrations showed a decrease. The combined treatment, however, provided the best results. The positive interaction between the two soil conditioners might be related to the capacity of the biofertilizer to increase nutrient uptake from the composted residue, and to protect plants against Fe and Mn toxicity.
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Affiliation(s)
- A Sevilla-Perea
- Instituto Andaluz de Ciencias de la Tierra (UGR-CSIC), Avda. de las Palmeras 4, 18100 Armilla, Granada, Spain.
| | - M D Mingorance
- Instituto Andaluz de Ciencias de la Tierra (UGR-CSIC), Avda. de las Palmeras 4, 18100 Armilla, Granada, Spain
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16
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Girdhar M, Sharma NR, Rehman H, Kumar A, Mohan A. Comparative assessment for hyperaccumulatory and phytoremediation capability of three wild weeds. 3 Biotech 2014; 4:579-589. [PMID: 28324308 PMCID: PMC4235884 DOI: 10.1007/s13205-014-0194-0] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2013] [Accepted: 01/03/2014] [Indexed: 11/10/2022] Open
Abstract
The composition and the organization of soil are changing rapidly by the diverged mankind activities, leading to the contamination of environment. Several methods are employed to clean up the environment from these kinds of contaminants, but most of them are costly and ineffective to yield optimum results. Phytoremediation is a natural green technology, which is eco-friendly for the removal of toxic metals from the polluted environment. Phytoremediation is a cost-effective technique through which the cleanup of contaminated soil laced with heavy metals is performed by wild weeds and small herbal plants. The phytoremediation technique provides a promising tool for hyperaccumulation of heavy metals; arsenic, lead, mercury, copper, chromium, and nickel, etc., by the wild weeds and that has been discussed here in detail in case of Cannabissativa, Solanum nigrum and Rorippa globosa. In general, weeds that have the intrinsic capacity to accumulate metals into their shoots and roots, have the ability to form phytochelates and formation of stable compound with ions. This behavior of accumulation along with chelate and stable compound formation is utilized as a tool for phytoremediation activity.
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Affiliation(s)
- Madhuri Girdhar
- Department of Biotechnology, Lovely Professional University, Chehru, Phagwara, India
| | - Neeta Raj Sharma
- Department of Biotechnology, Lovely Professional University, Chehru, Phagwara, India
| | - Hasibur Rehman
- Department of Biology, Faculty of Sciences, University of Tabuk, Tabuk, Saudi Arabia
| | - Anupam Kumar
- Department of Biotechnology, Lovely Professional University, Chehru, Phagwara, India
| | - Anand Mohan
- Department of Biotechnology, Lovely Professional University, Chehru, Phagwara, India.
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17
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Xu J, Yin H, Li Y, Liu X. Nitric oxide is associated with long-term zinc tolerance in Solanum nigrum. PLANT PHYSIOLOGY 2010; 154:1319-34. [PMID: 20855519 PMCID: PMC2971609 DOI: 10.1104/pp.110.162982] [Citation(s) in RCA: 101] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/17/2010] [Accepted: 09/17/2010] [Indexed: 05/18/2023]
Abstract
Nitric oxide (NO) has been identified as a signal molecule that interplays with reactive oxygen species in response to heavy metal stresses. Roles of NO in regulating cadmium toxicity and iron deficiency have been proposed; however, the function of NO in zinc (Zn) tolerance in plants remains unclear. Here, we investigated NO accumulation and its role in plant Zn tolerance. Zn-induced NO production promoted an increase in reactive oxygen species accumulation in Solanum nigrum roots by modulating the expression and activity of antioxidative enzymes. Subsequently, programmed cell death (PCD) was observed in primary root tips. Inhibiting NO accumulation by 2-phenyl-4,4,5,5-tetramethyl-imidazoline-1-oxyl-3-oxide (a specific NO scavenger) or N(G)-nitro-l-arginine-methyl ester (a NO synthase inhibitor) prevented the increase of superoxide radical and hydrogen peroxide as well as the subsequent cell death in the root tips, supporting the role of NO in Zn-induced PCD in the root tips. Zn-induced NO production affected the length of primary roots, the number of lateral roots, and root hair growth and thereby modulated root system architecture and activity. Investigation of metal contents in Zn-treated roots suggests that NO is required for metal (especially iron) uptake and homeostasis in plants exposed to excess Zn. Taken together, our results indicate that NO production and the subsequent PCD in root tips exposed to excess Zn are favorable for the S. nigrum seedling response to long-term Zn toxicity by modulating root system architecture and subsequent adaptation to Zn stress.
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Affiliation(s)
| | | | | | - Xiaojing Liu
- Key Laboratory of Agricultural Water Resources, Center for Agricultural Resources Research, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Shijiazhuang 050021, China
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18
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Wei S, Li Y, Zhou Q, Srivastava M, Chiu S, Zhan J, Wu Z, Sun T. Effect of fertilizer amendments on phytoremediation of Cd-contaminated soil by a newly discovered hyperaccumulator Solanum nigrum L. JOURNAL OF HAZARDOUS MATERIALS 2010; 176:269-273. [PMID: 19951826 DOI: 10.1016/j.jhazmat.2009.11.023] [Citation(s) in RCA: 59] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/16/2009] [Revised: 09/24/2009] [Accepted: 11/02/2009] [Indexed: 05/28/2023]
Abstract
Phytoremediation is a cost-effective, simple and sustainable beneficiary technique to purify the polluted environment. Solanum nigrum L., a newly found cadmium (Cd) hyperaccumulator, has shown the potential to remediate Cd-contaminated soils. Present study investigated the effects of fertilizer amendments on the Cd uptake by S. nigrum. Chicken manure and urea are usual agricultural fertilizers and more environmental friendly. The results showed that Cd concentrations in shoots of S. nigrum were significantly decreased (p<0.05) by 28.2-34.6%, as compared to that of without the addition of chicken manure, but not the case for urea treatment. However, Cd extraction capacities (microg pot(-1)) in shoot biomass of S. nigrum were significantly increased (p<0.05) due to increased shoot biomass. In addition, available Cd concentration in soil significantly decreased due to addition of chicken manure. Thus, urea might be a better fertilizer for strengthening phytoextraction rate of S. nigrum to Cd, and chicken manure may be a better fertilizer for phytostabilization.
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Affiliation(s)
- Shuhe Wei
- Key Laboratory of Terrestrial Ecological Process, Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang 110016, PR China.
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19
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Alkorta I, Becerril JM, Garbisu C. Phytostabilization of metal contaminated soils. REVIEWS ON ENVIRONMENTAL HEALTH 2010; 25:135-46. [PMID: 20839558 DOI: 10.1515/reveh.2010.25.2.135] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/04/2023]
Abstract
The contamination of soils with heavy metals represents a worldwide environmental problem of great concern. Traditional methods for the remediation of metal contaminated soils are usually very expensive and frequently induce adverse effects on soil properties and biological activity. Consequently, biological methods of soil remediation like phytoremediation (the use of green plants to clean up contaminated sites) are currently receiving a great deal of attention. In particular, chemophytostabilization of metal contaminated soils (the use of metal tolerant plants together with different amendments like organic materials, liming agents, or phosphorus compounds and such) to reduce metal mobility and bioavailability in soils appears most promising for sites contaminated with high levels of several metals when phytoextraction is not a feasible option. During chemophytostabilization processes, one must at all times be cautious with a possible future reversal of soil metal immobilization, with concomitant adverse environmental consequences.
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Affiliation(s)
- I Alkorta
- Biophysics Unit, University of the Basque Country, P.O. Box 644, Bilbao, Spain
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20
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Marques APGC, Rangel AOSS, Castro PML. Remediation of Heavy Metal Contaminated Soils: Phytoremediation as a Potentially Promising Clean-Up Technology. CRITICAL REVIEWS IN ENVIRONMENTAL SCIENCE AND TECHNOLOGY 2009; 39:622-654. [PMID: 0 DOI: 10.1080/10643380701798272] [Citation(s) in RCA: 198] [Impact Index Per Article: 13.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
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Peng KJ, Luo CL, Chen YH, Wang GP, Li XD, Shen ZG. Cadmium and other metal uptake by Lobelia chinensis and Solanum nigrum from contaminated soils. BULLETIN OF ENVIRONMENTAL CONTAMINATION AND TOXICOLOGY 2009; 83:260-264. [PMID: 19290449 DOI: 10.1007/s00128-009-9701-0] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/11/2008] [Accepted: 02/26/2009] [Indexed: 05/27/2023]
Abstract
Cadmium concentrations in two plant species and their corresponding soils were evaluated in a metal contaminated area. The average Cd concentrations reached 36.9 and 141 mg kg(-1) in Solanum nigrum leaves and Lobelia chinensis shoots, respectively. There is a significant relationship between the Cd concentration in the aerial tissues and the corresponding soils on a logarithmic scale. Under the hydroponic culture conditions, the maximum Cd concentration in the S. nigrum leaves and L. chinensis shoots were 1,110 and 414 mg kg(-1), respectively. Cd concentration was higher in the roots than in the aerial parts. The two plants may be used in suitable phytoremediation process.
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Affiliation(s)
- K J Peng
- Hunan Research Academy of Environmental Sciences, Changsha, 410004, China
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