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Al Mamun A, Rahman MM, Huq MA, Rahman MM, Rana MR, Rahman ST, Khatun ML, Alam MK. Phytoremediation: a transgenic perspective in omics era. Transgenic Res 2024:10.1007/s11248-024-00393-x. [PMID: 38922381 DOI: 10.1007/s11248-024-00393-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2023] [Accepted: 06/17/2024] [Indexed: 06/27/2024]
Abstract
Phytoremediation is an environmental safety strategy that might serve as a viable preventative approach to reduce soil contamination in a cost-effective manner. Using plants to remediate pollution from the environment is referred to as phytoremediation. In the past few decades, plants have undergone genetic manipulation to overcome inherent limitations by using genetically modified plants. This review illustrates the eco-friendly process of cleaning the environment using transgenic strategies combined with omics technologies. Herbicides tolerance and phytoremediation abilities have been established in genetically modified plants. Transgenic plants have eliminated the pesticides atrazine and metolachlor from the soil. To expand the application of genetically engineered plants for phytoremediation process, it is essential to test strategies in the field and have contingency planning. Omics techniques were used for understanding various genetic, hormonal, and metabolic pathways responsible for phytoremediation in soil. Transcriptomics and metabolomics provide useful information as resources to understand the mechanisms behind phytoremediation. This review aims to highlight the integration of transgenic strategies and omics technologies to enhance phytoremediation efficiency, emphasizing the need for field testing and comprehensive planning for successful implementation.
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Affiliation(s)
- Abdullah Al Mamun
- Department of Biotechnology and Genetic Engineering, Faculty of Biological Science, Islamic University, Kushtia, 7003, Bangladesh
| | - M Mizanur Rahman
- Department of Biotechnology and Genetic Engineering, Faculty of Biological Science, Islamic University, Kushtia, 7003, Bangladesh.
| | - Md Amdadul Huq
- Department of Food and Nutrition, College of Biotechnology and Natural Resources, Chung-Ang University, Anseong-si, Gyeonggi-do, 17546, Republic of Korea
| | - Md Mashiar Rahman
- Department of Genetic Engineering and Biotechnology, Jashore University of Science and Technology, Jashore, 7408, Bangladesh
| | - Md Rasel Rana
- Department of Biotechnology and Genetic Engineering, Faculty of Biological Science, Islamic University, Kushtia, 7003, Bangladesh
| | - Shabiha Tasbir Rahman
- Department of Biotechnology and Genetic Engineering, Faculty of Biological Science, Islamic University, Kushtia, 7003, Bangladesh
| | - Mst Lata Khatun
- Department of Biotechnology and Genetic Engineering, Faculty of Biological Science, Islamic University, Kushtia, 7003, Bangladesh
| | - Md Khasrul Alam
- Department of Biotechnology and Genetic Engineering, Faculty of Biological Science, Islamic University, Kushtia, 7003, Bangladesh
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Zhang X, Wei H, Guan Q, Yang X, Yu Q, Zhang M, Xia Y. Maternal Exposure to Trace Elements, Toxic Metals, and Longitudinal Changes in Infancy Anthropometry and Growth Trajectories: A Prospective Cohort Study. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2023; 57:11779-11791. [PMID: 37525382 DOI: 10.1021/acs.est.3c02535] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/02/2023]
Abstract
Exploration of stage-specific effects of maternal exposure to trace elements and toxic metals on infancy continuous growth and trajectories is critical for early-life health management. Within a Chinese prospective cohort in 2014-2015, a total of 919 mother-infant pairs were included, and the urinary levels of 17 elements including vanadium (V), chromium (Cr), manganese, iron, cobalt, nickel, copper, zinc, arsenic, molybdenum, palladium, cadmium, tin, gold, mercury, thallium, and lead in early (mean: 11.9 weeks), and late pregnancy (mean: 32.4 weeks) were assessed. Standardized anthropometric assessments of infants were conducted at 1, 3, 6, 8, and 12 months of age. A three-step longitudinal and high-dimensional data analysis procedure was carried out to estimate the impacts of exposome on dynamic growth. Early-pregnancy exposures to V and Cr were positively associated with repeated measurements of length-for-age z-scores (LAZ). Six trajectories were identified based on LAZ. Maternal single exposure to V and Cr as well as mixed exposure to trace elements in early pregnancy were associated with raised odds for the high-stable group. Our results suggested positive associations between maternal trace element exposome and infancy dynamic growth. V and Cr were the key elements and the early pregnancy might be the critical window.
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Affiliation(s)
- Xiaochen Zhang
- State Key Laboratory of Reproductive Medicine and Offspring Health, School of Public Health, Nanjing Medical University, Nanjing 211166, China
- Key Laboratory of Modern Toxicology of Ministry of Education, School of Public Health, Nanjing Medical University, Nanjing 211166, China
| | - Hongcheng Wei
- State Key Laboratory of Reproductive Medicine and Offspring Health, School of Public Health, Nanjing Medical University, Nanjing 211166, China
- Key Laboratory of Modern Toxicology of Ministry of Education, School of Public Health, Nanjing Medical University, Nanjing 211166, China
| | - Quanquan Guan
- State Key Laboratory of Reproductive Medicine and Offspring Health, School of Public Health, Nanjing Medical University, Nanjing 211166, China
- Key Laboratory of Modern Toxicology of Ministry of Education, School of Public Health, Nanjing Medical University, Nanjing 211166, China
| | - Xu Yang
- State Key Laboratory of Reproductive Medicine and Offspring Health, School of Public Health, Nanjing Medical University, Nanjing 211166, China
- Key Laboratory of Modern Toxicology of Ministry of Education, School of Public Health, Nanjing Medical University, Nanjing 211166, China
| | - Qiurun Yu
- State Key Laboratory of Reproductive Medicine and Offspring Health, School of Public Health, Nanjing Medical University, Nanjing 211166, China
- Key Laboratory of Modern Toxicology of Ministry of Education, School of Public Health, Nanjing Medical University, Nanjing 211166, China
| | - Mingzhi Zhang
- State Key Laboratory of Reproductive Medicine and Offspring Health, School of Public Health, Nanjing Medical University, Nanjing 211166, China
- Key Laboratory of Modern Toxicology of Ministry of Education, School of Public Health, Nanjing Medical University, Nanjing 211166, China
| | - Yankai Xia
- State Key Laboratory of Reproductive Medicine and Offspring Health, School of Public Health, Nanjing Medical University, Nanjing 211166, China
- Key Laboratory of Modern Toxicology of Ministry of Education, School of Public Health, Nanjing Medical University, Nanjing 211166, China
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Rai PK, Sonne C, Kim KH. Heavy metals and arsenic stress in food crops: Elucidating antioxidative defense mechanisms in hyperaccumulators for food security, agricultural sustainability, and human health. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 874:162327. [PMID: 36813200 DOI: 10.1016/j.scitotenv.2023.162327] [Citation(s) in RCA: 17] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/17/2022] [Revised: 02/02/2023] [Accepted: 02/15/2023] [Indexed: 06/18/2023]
Abstract
The spread of heavy metal(loid)s at soil-food crop interfaces has become a threat to sustainable agricultural productivity, food security, and human health. The eco-toxic effects of heavy metals on food crops can be manifested through reactive oxygen species that have the potential to disturb seed germination, normal growth, photosynthesis, cellular metabolism, and homeostasis. This review provides a critical overview of stress tolerance mechanisms in food crops/hyperaccumulator plants against heavy metals and arsenic (HM-As). The HM-As antioxidative stress tolerance in food crops is associated with changes in metabolomics (physico-biochemical/lipidomics) and genomics (molecular level). Furthermore, HM-As stress tolerance can occur through plant-microbe, phytohormone, antioxidant, and signal molecule interactions. Information regarding the avoidance, tolerance, and stress resilience of HM-As should help pave the way to minimize food chain contamination, eco-toxicity, and health risks. Advanced biotechnological approaches (e.g., genome modification with CRISPR-Cas9 gene editing) in concert with traditional sustainable biological methods are useful options to develop 'pollution safe designer cultivars' with increased climate change resilience and public health risks mitigation. Further, the usage of HM-As tolerant hyperaccumulator biomass in biorefineries (e.g., environmental remediation, value added chemicals, and bioenergy) is advocated to realize the synergy between biotechnological research and socio-economic policy frameworks, which are inextricably linked with environmental sustainability. The biotechnological innovations, if directed toward 'cleaner climate smart phytotechnologies' and 'HM-As stress resilient food crops', should help open the new path to achieve sustainable development goals (SDGs) and a circular bioeconomy.
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Affiliation(s)
- Prabhat Kumar Rai
- Department of Environmental Science, Mizoram University, Aizawl 796004, India
| | - Christian Sonne
- Department of Ecoscience, Aarhus University, Frederiksborgvej 399, PO Box 358, DK-4000 Roskilde, Denmark
| | - Ki-Hyun Kim
- Department of Civil & Environmental Engineering, Hanyang University, 222 Wangsimni-Ro, Seoul 04763, Republic of Korea.
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Sarathchandra SS, Rengel Z, Solaiman ZM. A Review on Remediation of Iron Ore Mine Tailings via Organic Amendments Coupled with Phytoremediation. PLANTS (BASEL, SWITZERLAND) 2023; 12:plants12091871. [PMID: 37176929 PMCID: PMC10181287 DOI: 10.3390/plants12091871] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/13/2023] [Revised: 04/08/2023] [Accepted: 04/28/2023] [Indexed: 05/15/2023]
Abstract
Mining operations degrade natural ecosystems by generating a large quantity of mine tailings. Mine tailings remain in dams/open ponds without further treatment after valuable metals such as iron ore have been extracted. Therefore, rehabilitation of tailings to mitigate the negative environmental impacts is of the utmost necessity. This review compares existing physical, chemical and amendment-assisted phytoremediation methods in the rehabilitation of mine tailings from the perspective of cost, reliability and durability. After review and discussion, it is concluded that amendment-assisted phytoremediation has received comparatively great attention; however, the selection of an appropriate phytoremediator is the critical step in the process. Moreover, the efficiency of phytoremediation is solely dependent on the amendment type and rate. Further, the application of advanced plant improvement technologies, such as genetically engineered plants produced for this purpose, would be an alternative solution. Further research is needed to determine the suitability of this method for the particular environment.
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Affiliation(s)
- Sajeevee S Sarathchandra
- UWA School of Agriculture and Environment, The University of Western Australia, Perth, WA 6009, Australia
- The UWA Institute of Agriculture, The University of Western Australia, Perth, WA 6009, Australia
| | - Zed Rengel
- UWA School of Agriculture and Environment, The University of Western Australia, Perth, WA 6009, Australia
- The UWA Institute of Agriculture, The University of Western Australia, Perth, WA 6009, Australia
| | - Zakaria M Solaiman
- UWA School of Agriculture and Environment, The University of Western Australia, Perth, WA 6009, Australia
- The UWA Institute of Agriculture, The University of Western Australia, Perth, WA 6009, Australia
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Kumar V, Rout C, Singh J, Saharan Y, Goyat R, Umar A, Akbar S, Baskoutas S. A review on the clean-up technologies for heavy metal ions contaminated soil samples. Heliyon 2023; 9:e15472. [PMID: 37180942 PMCID: PMC10172878 DOI: 10.1016/j.heliyon.2023.e15472] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2023] [Revised: 03/19/2023] [Accepted: 04/11/2023] [Indexed: 05/16/2023] Open
Abstract
The soil contamination with heavy metal ions is one of the grave intricacies faced worldwide over the last few decades by the virtue of rapid industrialization, human negligence and greed. Heavy metal ions are quite toxic even at low concentration a swell as non-biodegradable in nature. Their bioaccumulation in the human body leads to several chronic and persistent diseases such as lung cancer, nervous system break down, respiratory problems and renal damage etc. In addition to this, the increased concentration of these metal ions in soil, beyond the permissible limits, makes the soil unfit for further agricultural use. Hence it is our necessity, to monitor the concentration of these metal ions in the soil and water bodies and adopt some better technologies to eradicate them fully. From the literature survey, it was observed that three main types of techniques viz. physical, chemical, and biological were employed to harness the heavy metal ions from metal-polluted soil samples. The main goal of these techniques was the complete removal of the metal ions or the transformation of them into less hazardous and toxic forms. Further the selection of the remediation technology depends upon different factors such as process feasibility/mechanism of the process applied, nature and type of contaminants, type and content of the soil, etc. In this review article, we have studied in detail all the three technologies viz. physical, chemical and biological with their sub-parts, mechanism, pictures, advantages and disadvantages.
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Affiliation(s)
- Vikas Kumar
- Department of Civil Engineering, Maharishi Markandeshwar (Deemed to Be University), Mullana, Ambala, 133203, Haryana, India
| | - Chadetrik Rout
- Department of Civil Engineering, Maharishi Markandeshwar (Deemed to Be University), Mullana, Ambala, 133203, Haryana, India
| | - Joginder Singh
- Department of Chemistry, Maharishi Markandeshwar (Deemed to Be University), Mullana, Ambala, 133203, Haryana, India
- Corresponding author.
| | - Yajvinder Saharan
- Department of Chemistry, Maharishi Markandeshwar (Deemed to Be University), Mullana, Ambala, 133203, Haryana, India
| | - Rohit Goyat
- Department of Chemistry, Maharishi Markandeshwar (Deemed to Be University), Mullana, Ambala, 133203, Haryana, India
| | - Ahmad Umar
- Department of Chemistry, Faculty of Science and Arts, And Promising Centre for Sensors and Electronic Devices (PCSED), Najran University, Najran-11001, Kingdom of Saudi Arabia
- Department of Materials Science and Engineering, The Ohio State University, Columbus, OH 43210, USA
- Corresponding author. Department of Chemistry, Faculty of Science and Arts, and Promising Centre for Sensors and Electronic Devices (PCSED), Najran University, Najran-11001, Kingdom of Saudi Arabia.
| | - Sheikh Akbar
- Department of Materials Science and Engineering, The Ohio State University, Columbus, OH 43210, USA
| | - S. Baskoutas
- Department of Materials Science, University of Patras, Patras, Greece
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Polyakov V, Bauer T, Butova V, Minkina T, Rajput VD. Nanoparticles-Based Delivery Systems for Salicylic Acid as Plant Growth Stimulator and Stress Alleviation. PLANTS (BASEL, SWITZERLAND) 2023; 12:1637. [PMID: 37111860 PMCID: PMC10146285 DOI: 10.3390/plants12081637] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/27/2023] [Revised: 04/06/2023] [Accepted: 04/11/2023] [Indexed: 06/19/2023]
Abstract
The population growth tendency leads to an increase in demand for food products, and in particular, products obtained from the processing of plants. However, there are issues of biotic and abiotic stresses that can significantly reduce crop yields and escalate the food crisis. Therefore, in recent years, the development of new methods of plant protection became an important task. One of the most promising ways to protect plants is to treat them with various phytohormones. Salicylic acid (SA) is one of the regulators of systemic acquired resistance (SAR) signaling pathways. These mechanisms are able to protect plants from biotic and abiotic stresses by increasing the expression of genes that encode antioxidant enzymes. However, salicylic acid in high doses can act as an antagonist and have the negative rebound effect of inhibition of plant growth and development. To maintain optimal SA concentrations in the long term, it is necessary to develop systems for the delivery and slow release of SA in plants. The purpose of this review is to summarize and study methods of delivery and controlled release of SA in a plant. Various carriers-based nanoparticles (NPs) synthesized from both organic and inorganic compounds, their chemical structure, impacts on plants, advantages, and disadvantages are comprehensively discussed. The mechanisms of controlled release of SA and the effects of the use of the considered composites on the growth and development of plants are also described. The present review will be helpful to design or fabricate NPs and NPs-based delivery systems for salicylic acid-controlled release and better understating of the mechanism of SA-NPs interaction to alleviate stress on plants.
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Affiliation(s)
- Vladimir Polyakov
- The Smart Materials Research Institute, Southern Federal University, 344090 Rostov-on-Don, Russia
| | - Tatiana Bauer
- Academy of Biology and Biotechnology, Southern Federal University, 344090 Rostov-on-Don, Russia
| | - Vera Butova
- The Smart Materials Research Institute, Southern Federal University, 344090 Rostov-on-Don, Russia
- Institute of General and Inorganic Chemistry, Bulgarian Academy of Sciences, 1113 Sofia, Bulgaria
| | - Tatiana Minkina
- Academy of Biology and Biotechnology, Southern Federal University, 344090 Rostov-on-Don, Russia
| | - Vishnu D. Rajput
- Academy of Biology and Biotechnology, Southern Federal University, 344090 Rostov-on-Don, Russia
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Samal SK, Datta SP, Dwivedi BS, Meena MC, Nogiya M, Choudhary M, Golui D, Raza MB. Phytoextraction of nickel, lead, and chromium from contaminated soil using sunflower, marigold, and spinach: comparison of efficiency and fractionation study. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:50847-50863. [PMID: 36807853 DOI: 10.1007/s11356-023-25806-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/04/2022] [Accepted: 02/04/2023] [Indexed: 04/16/2023]
Abstract
Heavy metals in soil pose a serious threat through their toxic effect on the human food chain. Phytoremediation is a clean and green potentially cost-effective technology in remediating the heavy metal-contaminated soil. However, the efficiency of phytoextraction is very often limited by low phytoavailability of heavy metals in soil, slow growth, and small biomass production of hyper-accumulator plants. To solve these issues, accumulator plant(s) with high biomass production and amendment(s) which can solubilize metals in soil is required for better phytoextraction. A pot experiment was conducted to assess the efficiency of phytoextraction of sunflower, marigold, and spinach as affected by the incorporation of Sesbania (solubilizer) and addition of gypsum (solubilizer) in nickel (Ni)-, lead (Pb)-, and chromium (Cr)-contaminated soil. A fractionation study was conducted to study the bioavailability of the heavy metals in contaminated soil after growing the accumulator plants and as affected by using soil amendments (Sesbania and gypsum). Results showed that marigold was the most efficient among the three accumulator plants in phytoextraction of the heavy metals in the contaminated soil. Both sunflower and marigold were able to reduce the bioavailability of the heavy metals in the post-harvest soil, which was reflected in their (heavy metals) lower concentration in subsequently grown paddy crop (straw). The fractionation study revealed that carbonate and organically bound fractions of the heavy metals control the bioavailability of the heavy metals in the experimental soil. Both Sesbania and gypsum were not effective in solubilizing the heavy metals in the experimental soil. Therefore, the possibility of using Sesbania and gypsum for solubilizing heavy metals in contaminated soil is ruled out.
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Affiliation(s)
- Saubhagya Kumar Samal
- Division of Soil Science and Agricultural Chemistry, ICAR-Indian Agricultural Research Institute, New Delhi, 110 012, India.
- ICAR Mahatma Gandhi Integrated Farming Research Institute, Motihari, 845429, India.
| | - Siba Prasad Datta
- Division of Soil Science and Agricultural Chemistry, ICAR-Indian Agricultural Research Institute, New Delhi, 110 012, India
| | - Brahma Swaroop Dwivedi
- Division of Soil Science and Agricultural Chemistry, ICAR-Indian Agricultural Research Institute, New Delhi, 110 012, India
| | - Mahesh Chand Meena
- Division of Soil Science and Agricultural Chemistry, ICAR-Indian Agricultural Research Institute, New Delhi, 110 012, India
| | - Mahaveer Nogiya
- Division of Soil Science and Agricultural Chemistry, ICAR-Indian Agricultural Research Institute, New Delhi, 110 012, India
| | - Mahipal Choudhary
- Division of Soil Science and Agricultural Chemistry, ICAR-Indian Agricultural Research Institute, New Delhi, 110 012, India
| | - Debasis Golui
- Division of Soil Science and Agricultural Chemistry, ICAR-Indian Agricultural Research Institute, New Delhi, 110 012, India
- Department of Civil, Construction and Environmental Engineering, North Dakota State University, Fargo, ND, 58102, USA
| | - Mohammed Basit Raza
- Division of Soil Science and Agricultural Chemistry, ICAR-Indian Agricultural Research Institute, New Delhi, 110 012, India
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Kozak K, Antosiewicz DM. Tobacco as an efficient metal accumulator. Biometals 2023; 36:351-370. [PMID: 36097238 PMCID: PMC10082116 DOI: 10.1007/s10534-022-00431-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2021] [Accepted: 07/29/2022] [Indexed: 11/26/2022]
Abstract
Tobacco (Nicotiana tabacum L.) is an important industrial crop plant. However, it efficiently accumulates metals, primarily cadmium (Cd) and also zinc (Zn), in its leaves. Therefore, it could be a source of cadmium intake by smokers. On the other hand, as a high leaf metal accumulator, it is widely used for phytoremediation of metal-contaminated soil. Both issues provide an important rationale for investigating the processes regulating metal homeostasis in tobacco. This work summarizes the results of research to date on the understanding of the molecular mechanisms determining the effective uptake of Zn and Cd, their translocation into shoots and accumulation in leaves. It also discusses the current state of research to improve the phytoremediation properties of tobacco through genetic modification and to limit leaf Cd content for the tobacco industry.
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Affiliation(s)
- Katarzyna Kozak
- Department of Plant Metal Homeostasis, Faculty of Biology, Institute of Experimental Plant Biology and Biotechnology, University of Warsaw, 1 Miecznikowa Str, 02-096, Warszawa, Poland
| | - Danuta Maria Antosiewicz
- Department of Plant Metal Homeostasis, Faculty of Biology, Institute of Experimental Plant Biology and Biotechnology, University of Warsaw, 1 Miecznikowa Str, 02-096, Warszawa, Poland.
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Kumar K, Shinde A, Aeron V, Verma A, Arif NS. Genetic engineering of plants for phytoremediation: advances and challenges. JOURNAL OF PLANT BIOCHEMISTRY AND BIOTECHNOLOGY 2023; 32:12-30. [PMID: 0 DOI: 10.1007/s13562-022-00776-3] [Citation(s) in RCA: 12] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/29/2021] [Accepted: 02/22/2022] [Indexed: 05/27/2023]
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Su R, Wang Y, Huang S, Chen R, Wang J. Application for Ecological Restoration of Contaminated Soil: Phytoremediation. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2022; 19:ijerph192013124. [PMID: 36293698 PMCID: PMC9603173 DOI: 10.3390/ijerph192013124] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/30/2022] [Accepted: 10/08/2022] [Indexed: 05/06/2023]
Abstract
Nowadays, with the rapid development of industry and agriculture, heavy metal pollution is becoming more and more serious, mainly deriving from natural and man-made sources [...].
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Affiliation(s)
- Rongkui Su
- College of Environmental Science and Engineering, Central South University of Forestry & Technology, Changsha 410004, China
- PowerChina Zhongnan Engineering Corporation Limited, Changsha 410004, China
| | - Yangyang Wang
- College of Geography and Environmental Science, Henan University, Kaifeng 475004, China
- Correspondence: (Y.W.); (J.W.)
| | - Shunhong Huang
- College of Environmental Science and Engineering, Central South University of Forestry & Technology, Changsha 410004, China
| | - Runhua Chen
- College of Environmental Science and Engineering, Central South University of Forestry & Technology, Changsha 410004, China
| | - Jun Wang
- College of Environmental Science and Engineering, Central South University of Forestry & Technology, Changsha 410004, China
- Correspondence: (Y.W.); (J.W.)
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Ranieri E, Gikas P, Ranieri F, D'Onghia G, Ranieri AC. Phytoextraction by Moso Bamboo under high level chromium stress in mediterranean conditions. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2022; 317:115479. [PMID: 35751276 DOI: 10.1016/j.jenvman.2022.115479] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/09/2022] [Revised: 05/27/2022] [Accepted: 06/01/2022] [Indexed: 06/15/2023]
Abstract
In this study a bamboo species, Moso Bamboo (MB) - Phyllostachys pubescens - has been selected for its heavy metal accumulation capacity and translocation potential to restore Cr-contaminated soil. Experiments have been conducted so to evaluate the capability of MB to remove Cr from soil, growing under Mediterranean conditions, irrigated with water containing 180 mgCr/L, at flow rate of 600 mm/year. The soil has been contaminated by the irrigation water. When the concentration of Cr in soil reached 300 mgCr/kg, Cr phytoextraction by MB from soil at the same irrigation rate of 600 mm/year with uncontaminated water has been evaluated. Cr removal from soil was approx. 42% after 6 weeks and 60.7% after 12 weeks, starting from a Cr content in soil of approximately 300 mg/kg. MB growing in Cr contaminated soil has shown Cr concentration per gram of dry biomass in aerial parts greater than the underground parts of the plants. After 12 weeks of cultivation, the quantity of Cr in roots and rhizome was measured as 1.79 mg/g, while in stems and leaves as 2.49 mg/g. Results shown a bioconcentration factor of 0.77, 0.65, 0.18, 0.08, after 6 weeks and 0.64, 0.98, 0.53, 0.26 after 12 weeks for roots, rhizomes, stems and leaves, respectively and a translocation factor equal to 0.23 and 0.11 after 6 weeks and 0.83 and 0.40 after 12 weeks, for stems and leaves, respectively.
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Affiliation(s)
- Ezio Ranieri
- Università; degli Studi di Bari, Dipartimento di Biologia, Bari, Italy.
| | - Petros Gikas
- Technical University of Crete, School of Chemical and Environmental Engineering, Chania, Greece
| | - Francesca Ranieri
- Università; degli Studi di Foggia, Dipartimento di Economia, Management e Territorio, Foggia, Italy
| | | | - Ada Cristina Ranieri
- Politecnico di Bari, Dipartimento Interateneo di Fisica, Bari, Italy; Università; Internazionale Telematica Uninettuno, Roma, Italy
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12
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Tang W, Sun J, Tang J, Chen Z, Shi Y, Zhao R, Jiang Y, Tan L. Cadmium-Rich Plant Powder/PAN/PU Foams with Low Thermal Conductivity. Polymers (Basel) 2022; 14:polym14142893. [PMID: 35890668 PMCID: PMC9323765 DOI: 10.3390/polym14142893] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2022] [Revised: 07/05/2022] [Accepted: 07/08/2022] [Indexed: 02/01/2023] Open
Abstract
Treating and utilizing heavy metal enriched plants have become growing problems. In this work, a series of composite foams were made from the powder of Cadmium-rich plant, polyacrylonitrile (PAN) and polyurethane (PU). Test results indicated that the addition of plant powder can not only increase the specific surface area, but also improve the apparent density and thermal stability of the foams. Besides, compared with the foam without plant powder, the powder-added foams exhibited a decreasing trend for thermal conductivity, and the minimum was 0.048 w/(m·k), which indicated that the addition of plant powder can help to enhance the thermal insulation of composite foam. More importantly, the results of leaching experiment showed that the leaching rate of heavy metal cadmium in the composite foam with 50% plant powder content was as low as 0.14% after being immersed in the acidic (pH = 3) solution for 5 days, which implies that the foam materials are very safe. This study provides a new way to realize high value-added resource utilization of heavy metal-enriched plants.
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Affiliation(s)
- Wenying Tang
- Sichuan Province Fiber Inspection Bureau, Chengdu 610015, China; (W.T.); (J.S.); (Z.C.)
- Key Laboratory of Leather Chemistry and Engineering of Ministry of Education, College of Biomass Science and Engineering, Sichuan University, Chengdu 610065, China; (Y.S.); (L.T.)
| | - Jin Sun
- Sichuan Province Fiber Inspection Bureau, Chengdu 610015, China; (W.T.); (J.S.); (Z.C.)
| | - Jie Tang
- Sichuan Huafang Yinhua Co., Ltd., Suining 629200, China;
| | - Zheng Chen
- Sichuan Province Fiber Inspection Bureau, Chengdu 610015, China; (W.T.); (J.S.); (Z.C.)
| | - Yidong Shi
- Key Laboratory of Leather Chemistry and Engineering of Ministry of Education, College of Biomass Science and Engineering, Sichuan University, Chengdu 610065, China; (Y.S.); (L.T.)
| | - Ruifang Zhao
- Sichuan Province Fiber Inspection Bureau, Chengdu 610015, China; (W.T.); (J.S.); (Z.C.)
- Key Laboratory of Leather Chemistry and Engineering of Ministry of Education, College of Biomass Science and Engineering, Sichuan University, Chengdu 610065, China; (Y.S.); (L.T.)
- Correspondence: (R.Z.); (Y.J.)
| | - Yuanzhang Jiang
- Key Laboratory of Leather Chemistry and Engineering of Ministry of Education, College of Biomass Science and Engineering, Sichuan University, Chengdu 610065, China; (Y.S.); (L.T.)
- Correspondence: (R.Z.); (Y.J.)
| | - Lin Tan
- Key Laboratory of Leather Chemistry and Engineering of Ministry of Education, College of Biomass Science and Engineering, Sichuan University, Chengdu 610065, China; (Y.S.); (L.T.)
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Effects of Different Native Plants on Soil Remediation and Microbial Diversity in Jiulong Iron Tailings Area, Jiangxi. FORESTS 2022. [DOI: 10.3390/f13071106] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
Phytoremediation is an important solution to heavy metal pollution in soil. However, the impact of plants on microbial communities in contaminated soil also requires attention. Community-level physiological profiling (CLPP) based on the Biolog™ EcoPlate and high-throughput sequencing were used to study the soil microbial community in this article. The rhizosphere and bulk soil samples of six native species were collected from the iron mine tailings on Jiulong Mountain, Jiangxi Province. According to the average well color development (AWCD), all plants improved the activity and diversity of the contaminated soil microbial community to varying degrees. Cunninghamia lanceolate is considered to have good effects and led to the appearance of Cunninghamia lanceolata > Zelkova schneideriana > Toona ciliata > Alnus cremastogyne > Cyclobalanopsis myrsinifolia > Pinus elliottii. The Shannon–Wiener diversity index and principal component analysis (PCA) show that the evenness and dominance of soil microbial communities of several plants are structurally similar to those of uncontaminated soil (UNS). The results of high-throughput sequencing indicated that the bacterial community diversity of C. lanceolata, A. cremastogyne, and P. elliottii is similar to UNS, while fungal community diversity is different from UNS. C. lanceolata has a better effect on soil nutrients, C. myrsinifolia and P. elliottii may have a better effect on decreasing the Cu content. The objective of this study was to assess the influence of native plants on microbial communities in soils and the soil remediation capacity. Mortierellomycota was the key species for native plants to regulate Cu and microbial community functions. Native plants have decisive influence on microbial community diversity.
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Utilization of Legume-Nodule Bacterial Symbiosis in Phytoremediation of Heavy Metal-Contaminated Soils. BIOLOGY 2022; 11:biology11050676. [PMID: 35625404 PMCID: PMC9138774 DOI: 10.3390/biology11050676] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/10/2022] [Revised: 04/24/2022] [Accepted: 04/25/2022] [Indexed: 02/04/2023]
Abstract
Simple Summary The legume–rhizobium symbiosis is one of the most beneficial interactions with high importance in agriculture, as it delivers nitrogen to plants and soil, thereby enhancing plant growth. Currently, this symbiosis is increasingly being exploited in phytoremediation of metal contaminated soil to improve soil fertility and simultaneously metal extraction or stabilization. Rhizobia increase phytoremediation directly by nitrogen fixation, protection of plants from pathogens, and production of plant growth-promoting factors and phytohormones. Abstract With the increasing industrial activity of the growing human population, the accumulation of various contaminants in soil, including heavy metals, has increased rapidly. Heavy metals as non-biodegradable elements persist in the soil environment and may pollute crop plants, further accumulating in the human body causing serious conditions. Hence, phytoremediation of land contamination as an environmental restoration technology is desirable for both human health and broad-sense ecology. Legumes (Fabaceae), which play a special role in nitrogen cycling, are dominant plants in contaminated areas. Therefore, the use of legumes and associated nitrogen-fixing rhizobia to reduce the concentrations or toxic effects of contaminants in the soil is environmentally friendly and becomes a promising strategy for phytoremediation and phytostabilization. Rhizobia, which have such plant growth-promoting (PGP) features as phosphorus solubilization, phytohormone synthesis, siderophore release, production of beneficial compounds for plants, and most of all nitrogen fixation, may promote legume growth while diminishing metal toxicity. The aim of the present review is to provide a comprehensive description of the main effects of metal contaminants in nitrogen-fixing leguminous plants and the benefits of using the legume–rhizobium symbiosis with both wild-type and genetically modified plants and bacteria to enhance an efficient recovery of contaminated lands.
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Dubey AK, Kumar A, Kumar N, Kumar S, Gautam A, Ansari MA, Manika N, Lal S, Behera SK, Mallick S, Sanyal I. Over-expression of chickpea metallothionein 1 gene confers tolerance against major toxic heavy metal stress in Arabidopsis. PHYSIOLOGY AND MOLECULAR BIOLOGY OF PLANTS : AN INTERNATIONAL JOURNAL OF FUNCTIONAL PLANT BIOLOGY 2021; 27:2665-2678. [PMID: 35035129 PMCID: PMC8720129 DOI: 10.1007/s12298-021-01103-1] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/11/2021] [Revised: 11/05/2021] [Accepted: 11/11/2021] [Indexed: 05/19/2023]
Abstract
UNLABELLED Heavy metals are ubiquitously present in nature, including soil, water, and thus in plants, thereby causing a potential health risk. This study has investigated the role and efficiency of the chickpea metallothionein 1 (MT1) gene against the major toxic heavy metals, i.e., As [As(III) and As(V)], Cr(VI), and Cd toxicity. MT1 over-expressing transgenic lines had reduced As(V) and Cr(VI) accumulation, whereas Cd accumulation was enhanced in the L3 line. The physiological responses (WUE, A, Gs, E, ETR, and qP) were noted to be enhanced in transgenic plants, whereas qN was decreased. Similarly, the antioxidant molecules and enzymatic activities (GSH/GSSG, Asc/DHA, APX, GPX, and GRX) were higher in the transgenic plants. The activity of antioxidant enzymes, i.e., SOD, APX, GPX, and POD, were highest in the Cd-treated lines, whereas higher CAT activity was observed in As(V)-L1 and GRX in Cr-L3 line. The stress markers TBARS, H2O2, and electrolyte leakage were lower in transgenic lines in comparison to WT, while RWC was enhanced in the transgenic lines, and the transcript of MT1 gene was accumulated in the transgenic lines. Similarly, the level of stress-responsive amino acid cysteine was higher in transgenic plants as compared to WT plants. Among all the heavy metals, MT1 over-expressing lines showed a highly increased accumulation of Cd, whereas a non-significant effect was observed with As(III) treatment. Overall, the results demonstrate that Arabidopsis thaliana transformed with the MT1 gene mitigates heavy metal stress by regulating the defense mechanisms in plants. SUPPLEMENTARY INFORMATION The online version contains supplementary material available at 10.1007/s12298-021-01103-1.
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Affiliation(s)
- Arvind Kumar Dubey
- Plant Transgenic Laboratory, Molecular Biology and Biotechnology Division, CSIR-National Botanical Research Institute, Lucknow, 226001 India
| | - Anil Kumar
- Plant Transgenic Laboratory, Molecular Biology and Biotechnology Division, CSIR-National Botanical Research Institute, Lucknow, 226001 India
| | - Navin Kumar
- Plant Transgenic Laboratory, Molecular Biology and Biotechnology Division, CSIR-National Botanical Research Institute, Lucknow, 226001 India
| | - Sanoj Kumar
- Plant Transgenic Laboratory, Molecular Biology and Biotechnology Division, CSIR-National Botanical Research Institute, Lucknow, 226001 India
| | - Ambedkar Gautam
- Plant Transgenic Laboratory, Molecular Biology and Biotechnology Division, CSIR-National Botanical Research Institute, Lucknow, 226001 India
| | - Mohd Akram Ansari
- Plant Transgenic Laboratory, Molecular Biology and Biotechnology Division, CSIR-National Botanical Research Institute, Lucknow, 226001 India
| | - N. Manika
- Plant Transgenic Laboratory, Molecular Biology and Biotechnology Division, CSIR-National Botanical Research Institute, Lucknow, 226001 India
| | - Swati Lal
- Plant Transgenic Laboratory, Molecular Biology and Biotechnology Division, CSIR-National Botanical Research Institute, Lucknow, 226001 India
| | - Soumit Kumar Behera
- Plant Transgenic Laboratory, Molecular Biology and Biotechnology Division, CSIR-National Botanical Research Institute, Lucknow, 226001 India
| | - Shekhar Mallick
- Plant Transgenic Laboratory, Molecular Biology and Biotechnology Division, CSIR-National Botanical Research Institute, Lucknow, 226001 India
| | - Indraneel Sanyal
- Plant Transgenic Laboratory, Molecular Biology and Biotechnology Division, CSIR-National Botanical Research Institute, Lucknow, 226001 India
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16
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Phytoremediation of Toxic Metals: A Sustainable Green Solution for Clean Environment. APPLIED SCIENCES-BASEL 2021. [DOI: 10.3390/app112110348] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
Contamination of aquatic ecosystems by various sources has become a major worry all over the world. Pollutants can enter the human body through the food chain from aquatic and soil habitats. These pollutants can cause various chronic diseases in humans and mortality if they collect in the body over an extended period. Although the phytoremediation technique cannot completely remove harmful materials, it is an environmentally benign, cost-effective, and natural process that has no negative effects on the environment. The main types of phytoremediation, their mechanisms, and strategies to raise the remediation rate and the use of genetically altered plants, phytoremediation plant prospects, economics, and usable plants are reviewed in this review. Several factors influence the phytoremediation process, including types of contaminants, pollutant characteristics, and plant species selection, climate considerations, flooding and aging, the effect of salt, soil parameters, and redox potential. Phytoremediation’s environmental and economic efficiency, use, and relevance are depicted in our work. Multiple recent breakthroughs in phytoremediation technologies are also mentioned in this review.
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Gul I, Manzoor M, Hashim N, Shah GM, Waani SPT, Shahid M, Antoniadis V, Rinklebe J, Arshad M. Challenges in microbially and chelate-assisted phytoextraction of cadmium and lead - A review. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2021; 287:117667. [PMID: 34426392 DOI: 10.1016/j.envpol.2021.117667] [Citation(s) in RCA: 54] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/17/2021] [Revised: 06/10/2021] [Accepted: 06/26/2021] [Indexed: 05/28/2023]
Abstract
Cadmium (Cd) and lead (Pb) are ubiquitously present in surface soils, due to anthropogenic activities, causing threat to ecological and human health because of their carcinogenic nature. They accumulate in large quantities in the environment and affect negatively soil microbiota, plants, animals, and humans. For the cleanup of Cd/Pb polluted soils, different plant species have been studied. Many plants have shown the potential to hyperaccumulate Cd/Pb in their above-ground tissues. These plants decrease soil pH by root exudation or by releasing H+ ions, and this, in turn, increases the bioavailability of Cd/Pb for plant uptake. Different environmental processes related to soil organic matter, microorganisms, pH, genetic modifications, and various soil-borne chelating agents affect the potential of phytoremediation technology. Review papers trying to identify a single factor influencing the phytoremediation of heavy metals are available in the literature. However, an integrated approach dealing with different factors involved in the remediation of both metals is scarcely discussed. The main focus of this review is to discuss the phytoextraction technique for Cd/Pb removal from contaminated sites along with detoxification mechanisms. Further, the challenges in the Cd/Pb phytoextraction and different options available to cope with these challenges are also discussed. The update on the relevant findings on the use of microorganisms and amendments in enhancing the Cd/Pb phytoextraction is also provided. Finally, the areas to be explored in future research for the removal of Cd/Pb by integrated strategies have been discussed.
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Affiliation(s)
- Iram Gul
- Institute of Environmental Sciences and Engineering, School of Civil and Environmental Engineering, National University of Sciences and Technology (NUST), Islamabad, Pakistan; Department of Earth and Environmental Sciences, Hazara University, Mansehra, Pakistan
| | - Maria Manzoor
- Department of Environmental Sciences, University of Okara, Okara, Pakistan
| | - Nosheen Hashim
- Department of Environmental Sciences, University of Peshawar, Peshawar, Pakistan
| | - Ghulam Mujtaba Shah
- Department of Earth and Environmental Sciences, Hazara University, Mansehra, Pakistan
| | - Sayyada Phziya Tariq Waani
- Institute of Environmental Sciences and Engineering, School of Civil and Environmental Engineering, National University of Sciences and Technology (NUST), Islamabad, Pakistan
| | - Muhammad Shahid
- Department of Environmental Sciences, COMSATS University Islamabad, Vehari Campus, Vehari, Pakistan
| | - Vasileios Antoniadis
- Department of Agriculture Crop Production and Rural Environment, University of Thessaly, Greece
| | - Jörg Rinklebe
- University of Wuppertal, School of Architecture and Civil Engineering, Institute of Foundation Engineering, Water and Waste Management, Laboratory of Soil and Groundwater Management, Pauluskirchstraße 7, 42285, Wuppertal, Germany; Department of Environment, Energy and Geoinformatics, Sejong University, 98 Gunja-Dong, Guangjin-Gu, Seoul, Republic of Korea
| | - Muhammad Arshad
- Institute of Environmental Sciences and Engineering, School of Civil and Environmental Engineering, National University of Sciences and Technology (NUST), Islamabad, Pakistan.
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Rai GK, Bhat BA, Mushtaq M, Tariq L, Rai PK, Basu U, Dar AA, Islam ST, Dar TUH, Bhat JA. Insights into decontamination of soils by phytoremediation: A detailed account on heavy metal toxicity and mitigation strategies. PHYSIOLOGIA PLANTARUM 2021; 173:287-304. [PMID: 33864701 DOI: 10.1111/ppl.13433] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/10/2020] [Revised: 01/19/2021] [Accepted: 02/23/2021] [Indexed: 06/12/2023]
Abstract
In the current era of rapid industrialization, the foremost challenge is the management of industrial wastes. Activities such as mining and industrialization spill over a large quantity of toxic waste that pollutes soil, water, and air. This poses a major environmental and health challenge. The toxic heavy metals present in the soil and water are entering the food chain, which in turn causes severe health hazards. Environmental clean-up and reclamation of heavy metal contaminated soil and water are very important, and it necessitates efforts of environmentalists, industrialists, scientists, and policymakers. Phytoremediation is a plant-based approach to remediate heavy metal/organic pollutant contaminated soil and water in an eco-friendly, cost-effective, and permanent way. This review covers the effect of heavy metal toxicity on plant growth and physiological process, the concept of heavy metal accumulation, detoxification, and the mechanisms of tolerance in plants. Based on plants' ability to uptake heavy metals and metabolize them within tissues, phytoremediation techniques have been classified into six types: phytoextraction, phytoimmobilization, phytovolatilization, phytodegradation, rhizofiltration, and rhizodegradation. The development of research in this area led to the identification of metal hyper-accumulators, which could be utilized for reclamation of contaminated soil through phytomining. Concurrently, breeding and biotechnological approaches can enhance the remediation efficiency. Phytoremediation technology, combined with other reclamation technologies/practices, can provide clean soil and water to the ecosystem.
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Affiliation(s)
- Gyanendra K Rai
- School of Biotechnology, Sher-e-Kashmir University of Agricultural Sciences and Technology of Jammu, Jammu, India
| | - Basharat A Bhat
- Department of Bioresources, University of Kashmir, Jammu and Kashmir, India
| | - Muntazir Mushtaq
- School of Biotechnology, Sher-e-Kashmir University of Agricultural Sciences and Technology of Jammu, Jammu, India
| | - Lubna Tariq
- Department of Biotechnology, BGSB University, Jammu and Kashmir, India
| | - Pradeep K Rai
- Advance Center for Horticulture, Sher-e-Kashmir University of Agricultural Sciences and Technology of Jammu, Jammu, India
| | - Umer Basu
- Division of Pathology, Sher-e-Kashmir University of Agricultural Sciences and Technology of Jammu, Jammu, India
| | - Aejaz A Dar
- School of Biotechnology, Sher-e-Kashmir University of Agricultural Sciences and Technology of Jammu, Jammu, India
| | - Sheikh T Islam
- Department of Bioresources, University of Kashmir, Jammu and Kashmir, India
| | - Tanvir U H Dar
- Department of Biotechnology, BGSB University, Jammu and Kashmir, India
| | - Javaid A Bhat
- Ministry of Agriculture (MOA) Key Laboratory of Biology and Genetic Improvement of Soybean (General), State Key Laboratory for Crop Genetics and Germplasm Enhancement, Soybean Research Institute, National Center for Soybean Improvement, Nanjing Agricultural University, Nanjing, China
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Karthikeyan OP, Smith TJ, Dandare SU, Parwin KS, Singh H, Loh HX, Cunningham MR, Williams PN, Nichol T, Subramanian A, Ramasamy K, Kumaresan D. Metal(loid) speciation and transformation by aerobic methanotrophs. MICROBIOME 2021; 9:156. [PMID: 34229757 PMCID: PMC8262016 DOI: 10.1186/s40168-021-01112-y] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/21/2021] [Accepted: 06/09/2021] [Indexed: 05/06/2023]
Abstract
Manufacturing and resource industries are the key drivers for economic growth with a huge environmental cost (e.g. discharge of industrial effluents and post-mining substrates). Pollutants from waste streams, either organic or inorganic (e.g. heavy metals), are prone to interact with their physical environment that not only affects the ecosystem health but also the livelihood of local communities. Unlike organic pollutants, heavy metals or trace metals (e.g. chromium, mercury) are non-biodegradable, bioaccumulate through food-web interactions and are likely to have a long-term impact on ecosystem health. Microorganisms provide varied ecosystem services including climate regulation, purification of groundwater, rehabilitation of contaminated sites by detoxifying pollutants. Recent studies have highlighted the potential of methanotrophs, a group of bacteria that can use methane as a sole carbon and energy source, to transform toxic metal (loids) such as chromium, mercury and selenium. In this review, we synthesise recent advances in the role of essential metals (e.g. copper) for methanotroph activity, uptake mechanisms alongside their potential to transform toxic heavy metal (loids). Case studies are presented on chromium, selenium and mercury pollution from the tanneries, coal burning and artisanal gold mining, respectively, which are particular problems in the developing economy that we propose may be suitable for remediation by methanotrophs. Video Abstract.
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Affiliation(s)
- Obulisamy Parthiba Karthikeyan
- School of Biological Sciences & Institute for Global Food Security, Queen’s University Belfast, 19 Chlorine Gardens, Belfast, UK
- Civil and Environmental Engineering, University of Michigan, Ann Arbor, MI USA
- Department of Engineering Technology, College of Technology, University of Houston, Houston, TX USA
| | - Thomas J. Smith
- Biomolecular Sciences Research Centre, Sheffield Hallam University, Sheffield, UK
| | - Shamsudeen Umar Dandare
- School of Biological Sciences & Institute for Global Food Security, Queen’s University Belfast, 19 Chlorine Gardens, Belfast, UK
| | - Kamaludeen Sara Parwin
- Department of Environmental Sciences, Tamil Nadu Agricultural University, Coimbatore, India
| | - Heetasmin Singh
- Department of Chemistry, University of Guyana, Georgetown, Guyana
| | - Hui Xin Loh
- School of Biological Sciences & Institute for Global Food Security, Queen’s University Belfast, 19 Chlorine Gardens, Belfast, UK
| | - Mark R Cunningham
- School of Biological Sciences & Institute for Global Food Security, Queen’s University Belfast, 19 Chlorine Gardens, Belfast, UK
| | - Paul Nicholas Williams
- School of Biological Sciences & Institute for Global Food Security, Queen’s University Belfast, 19 Chlorine Gardens, Belfast, UK
| | - Tim Nichol
- Biomolecular Sciences Research Centre, Sheffield Hallam University, Sheffield, UK
| | | | | | - Deepak Kumaresan
- School of Biological Sciences & Institute for Global Food Security, Queen’s University Belfast, 19 Chlorine Gardens, Belfast, UK
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20
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Ning W, Li W, Pi W, Xu Y, Cao M, Luo J. Effects of decapitation and root cutting on phytoremediation efficiency of Celosia argentea. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2021; 215:112162. [PMID: 33756287 DOI: 10.1016/j.ecoenv.2021.112162] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/18/2020] [Revised: 03/03/2021] [Accepted: 03/15/2021] [Indexed: 06/12/2023]
Abstract
Decapitation and root cutting can influence plant physiological features, such as height, dry weight, and transpiration rate, which partly determine the success of phytoremediation. In this study, the effects of three root cutting intensities (10%, 25%, and 33%), decapitation, and their combination on the phytoremediation efficiency of Celosia argentea were evaluated. Decapitation increased the biomass yield of C. argentea roots and leaves and significantly improved the species' Cd decontamination ability. Root cutting, especially 33% cutting treatment, decreased the root dry weight. The 10% and 25% root cutting treatments increased the leaf biomass yield by 58.6% and 41.4%, respectively, compared with the untreated control, even compensating for the loss of roots, but 33% root cutting decreased the leaf dry weight. Low and moderate root cutting intensity (10% and 25%) increased the leaf Cd content by 33.4% and 24.9%, respectively, and was associated with improved transpiration rate. The highest root and leaf dry weights were observed for the combination of decapitation and 10% root cutting, which increased the biomass yield of underground and aerial parts by 109.9% and 286.2%, respectively. In addition, decapitation offset the negative effects of 33% root cutting on plant growth, indicated by the higher dry weight relative to the control. Decapitated C. argentea accumulated 11.0, 7.5, and 0.7 times more Cd with the 10%, 25%, and 33% root cutting treatments, respectively, compared with the control. The combination of root cutting and decapitation was a practicable and economical method of enhancing the Cd decontamination capacity of C. argentea.
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Affiliation(s)
- Wenjing Ning
- College of Resources and Environment, Yangtze University, Wuhan, China
| | - Wenping Li
- China University of Geosciences, Wuhan 430074, China
| | - Wen Pi
- College of Resources and Environment, Yangtze University, Wuhan, China
| | - Yaohui Xu
- College of Resources and Environment, Yangtze University, Wuhan, China
| | - Min Cao
- University of Leicester, University Road, Leicester LE1 7RH, United Kingdom
| | - Jie Luo
- College of Resources and Environment, Yangtze University, Wuhan, China.
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Urionabarrenetxea E, Garcia-Velasco N, Anza M, Artetxe U, Lacalle R, Garbisu C, Becerril T, Soto M. Application of in situ bioremediation strategies in soils amended with sewage sludges. THE SCIENCE OF THE TOTAL ENVIRONMENT 2021; 766:144099. [PMID: 33421774 DOI: 10.1016/j.scitotenv.2020.144099] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/17/2020] [Revised: 11/18/2020] [Accepted: 11/21/2020] [Indexed: 06/12/2023]
Abstract
Increasing soil loss and the scarcity of useful land requires new reusing strategies. Thus, recovery of polluted soils recovery offers a chance for economic and social regeneration. With this objective, different soil cleaning technologies have been developed during the last few decades. On one hand, classical physical and/or chemical technologies can be found which are efficient, but have high costs and impacts upon ecosystems. On the other hand, biological methods (such as phytoremediation, bioremediation and vermiremediation) are relatively cost effective and eco-friendly, but also more time-consuming. These biological methods and their yields have been widely studied but little is known about the interaction between different soil cleaning methods. The combination of different biological strategies could lead to an improvement in remediation performance. Hence, in the present work, different micro-, vermi- and phyto-remediation combinations are applied in a sewage sludge polluted landfill in Gernika-Lumo (Basque Country) which was used as a disposal point for decades, in search of the treatment (single) or combination (dual or triple) of treatments with best remediation yields. Eight experimental groups were applied (n=3) placing earthworms (E), bacteria (B), plants (P), bacteria+earthworms (B+E), bacteria+plants (B+P), plants+earthworms (P+E) plants+bacteria+earthworms (P+B+E) and a non-treated (N.T.) group in the experimental plot (Landfill 17), for 12 months. In order to assess the efficiency of each treatment, a complete characterization (chemical and ecotoxicological) was carried out before and after remediation. Results showed high removal rates for dieldrin (between 50% and 78%) in all the experimental groups. In contrast, removal rates around 20-25% were achieved for heavy metals (Cd 15%-35%; Ni 24%-37%; Pb 15%-33%; Cr 7%-39%) and benzo(a)pyrene (19.5%-28%). The highest reductions were observed in dual (P+E, B+E) and triple (P+B+E) treatments. The best elimination yields were obtained after P+B+E treatment, as highlighted by the battery of ecotoxicological tests and bioassays performed with earthworms, plants and bacteria.
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Affiliation(s)
- Erik Urionabarrenetxea
- Cell Biology in Environmental Toxicology (CBET) Research Group, Dept. Zoology and Animal Cell Biology, Faculty of Science and Technology & Research Centre for Experimental Marine Biology and Biotechnology PIE-UPV/EHU, University of the Basque Country UPV/EHU, E-48080 Bilbao, Basque Country, Spain
| | - Nerea Garcia-Velasco
- Cell Biology in Environmental Toxicology (CBET) Research Group, Dept. Zoology and Animal Cell Biology, Faculty of Science and Technology & Research Centre for Experimental Marine Biology and Biotechnology PIE-UPV/EHU, University of the Basque Country UPV/EHU, E-48080 Bilbao, Basque Country, Spain
| | - Mikel Anza
- NEIKER-Basque Institute for Agricultural Research and Development, Basque Research and Technology Alliance (BRTA), Parque Científico y Tecnológico de Bizkaia, P812, E-48160 Derio, Basque Country, Spain
| | - Unai Artetxe
- Ecofisko Research Group, Department of Plant Biology and Ecology, University of the Basque Country (UPV/EHU), P.O. Box 644, E-48080 Bilbao, Basque Country, Spain
| | - Rafael Lacalle
- Ecofisko Research Group, Department of Plant Biology and Ecology, University of the Basque Country (UPV/EHU), P.O. Box 644, E-48080 Bilbao, Basque Country, Spain
| | - Carlos Garbisu
- NEIKER-Basque Institute for Agricultural Research and Development, Basque Research and Technology Alliance (BRTA), Parque Científico y Tecnológico de Bizkaia, P812, E-48160 Derio, Basque Country, Spain
| | - Txema Becerril
- Ecofisko Research Group, Department of Plant Biology and Ecology, University of the Basque Country (UPV/EHU), P.O. Box 644, E-48080 Bilbao, Basque Country, Spain
| | - Manu Soto
- Cell Biology in Environmental Toxicology (CBET) Research Group, Dept. Zoology and Animal Cell Biology, Faculty of Science and Technology & Research Centre for Experimental Marine Biology and Biotechnology PIE-UPV/EHU, University of the Basque Country UPV/EHU, E-48080 Bilbao, Basque Country, Spain.
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Phytoremediation: a sustainable environmental technology for heavy metals decontamination. SN APPLIED SCIENCES 2021. [DOI: 10.1007/s42452-021-04301-4] [Citation(s) in RCA: 30] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022] Open
Abstract
AbstractToxic metal contamination of soil is a major environmental hazard. Chemical methods for heavy metal's (HMs) decontamination such as heat treatment, electroremediation, soil replacement, precipitation and chemical leaching are generally very costly and not be applicable to agricultural lands. However, many strategies are being used to restore polluted environments. Among these, phytoremediation is a promising method based on the use of hyper-accumulator plant species that can tolerate high amounts of toxic HMs present in the environment/soil. Such a strategy uses green plants to remove, degrade, or detoxify toxic metals. Five types of phytoremediation technologies have often been employed for soil decontamination: phytostabilization, phytodegradation, rhizofiltration, phytoextraction and phytovolatilization. Traditional phytoremediation method presents some limitations regarding their applications at large scale, so the application of genetic engineering approaches such as transgenic transformation, nanoparticles addition and phytoremediation assisted with phytohormones, plant growth-promoting bacteria and AMF inoculation has been applied to ameliorate the efficacy of plants as candidates for HMs decontamination. In this review, aspects of HMs toxicity and their depollution procedures with focus on phytoremediation are discussed. Last, some recent innovative technologies for improving phytoremediation are highlighted.
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Photolo MM, Sitole L, Mavumengwana V, Tlou MG. Genomic and Physiological Investigation of Heavy Metal Resistance from Plant Endophytic Methylobacterium radiotolerans MAMP 4754, Isolated from Combretum erythrophyllum. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2021; 18:ijerph18030997. [PMID: 33498657 PMCID: PMC7908345 DOI: 10.3390/ijerph18030997] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/16/2020] [Revised: 01/06/2021] [Accepted: 01/11/2021] [Indexed: 02/02/2023]
Abstract
Combretum erythrophyllum is an indigenous southern African tree species, a metal hyperaccumulator that has been used as a phytoextraction option for tailing dams in Johannesburg, South Africa. In hyperaccumulators, metal detoxification has also been linked or attributed to the activities of endophytes, and, in this regard, metal detoxification can be considered a form of endophytic behavior. Therefore, we report herein on the identification of proteins that confer heavy metal resistance, the in vitro characterization of heavy metal resistance, and the production of plant growth-promoting (PGP) volatiles by Methylobacterium radiotolerans MAMP 4754. Multigenome comparative analyses of M. radiotolerans MAMP 4754 against eight other endophytic strains led to the identification of zinc, copper, and nickel resistance proteins in the genome of this endophyte. The maximum tolerance concentration (MTC) of this strain towards these metals was also investigated. The metal-exposed cells were analyzed by transmission electron microscopy (TEM). The ethyl acetate and chloroform extracts (1:1 v/v) of heavy metal untreated M. radiotolerans MAMP 4754 were also screened for the production of PGP compounds by Gas Chromatography–Mass Spectroscopy (GC/MS). The MTC was recorded at 15 mM, 4 mM, and 12 mM for zinc, copper, and nickel, respectively. The TEM analysis showed the accumulation of metals in the intracellular environment of M. radiotolerans MAMP 4754, while the GC/MS analysis revealed several plant growth-promoting compounds, including alcohols, phthalate esters, alkenes, ketones, sulfide derivatives, phenols, and thiazoles. Our findings suggest that the genetic makeup of M. radiotolerans MAMP 4754 encodes heavy metal resistant proteins that indicate hyperaccumulator-specific endophytic behavior and the potential for application in bioremediation. The production of plant growth-promoting volatiles in pure culture by M. raditotolerans MAMP 4754 is a characteristic feature for plant growth-promoting bacteria.
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Affiliation(s)
- Mampolelo M. Photolo
- Department of Biochemistry, Faculty of Science, Auckland Park Campus, University of Johannesburg, Johannesburg 2092, South Africa; (M.M.P.); (L.S.)
| | - Lungile Sitole
- Department of Biochemistry, Faculty of Science, Auckland Park Campus, University of Johannesburg, Johannesburg 2092, South Africa; (M.M.P.); (L.S.)
| | - Vuyo Mavumengwana
- DST-NRF Centre of Excellence for Biomedical Tuberculosis Research, South African Medical Research Council Centre for Tuberculosis Research, Division of Molecular Biology and Human Genetics, Faculty of Medicine and Health Sciences, Tygerberg Campus, Stellenbosch University, Cape Town 7505, South Africa;
| | - Matsobane G. Tlou
- Department of Biochemistry, School of Physical and Chemical Sciences, Faculty of Natural and Agricultural Sciences, Mafikeng Campus, North-West University, Mafikeng 2790, South Africa
- Correspondence:
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Liu Q, Zhang Y, Wang Y, Wang W, Gu C, Huang S, Yuan H, Dhankher OP. Quantitative proteomic analysis reveals complex regulatory and metabolic response of Iris lactea Pall. var. chinensis to cadmium toxicity. JOURNAL OF HAZARDOUS MATERIALS 2020; 400:123165. [PMID: 32569986 DOI: 10.1016/j.jhazmat.2020.123165] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/30/2020] [Revised: 05/13/2020] [Accepted: 06/06/2020] [Indexed: 05/28/2023]
Abstract
Cadmium pollution has become a serious environmental problem. Iris lactea var. chinensis showed strong Cd tolerance and accumulation ability, which has significant potential to be applied for the phytoremediation of Cd-contaminated soil. However, the lack of molecular information on the mechanism of I. lactea response to Cd limited the improvement of phytoremediation efficiency. In this study, label-free proteomics analysis of Cd response in I. lactea showed that there were 163 and 196 differentially expressed proteins (DEPs) in the shoots and roots, respectively. Bioinformatics analysis indicated the DEPs responding to Cd stress mainly involved in signal transduction, ion transport, redox etc., and participate in the pathway of amino acid biosynthesis, lignin biosynthesis, glycerolipid metabolism and glutathione metabolism. Besides, differential expression of seven DEPs was validated via gene expression analysis. Finally, we found that a Cd-induced mannose-specific lectin (IlMSL) from I. lactea enhanced the Cd sensitivity and increased Cd accumulation in yeast. The results of this study will enhance our understanding of the molecular mechanism of Cd tolerance and accumulation in I. lactea and ultimately provide valuable resources for using Cd tolerant genes for developing efficient strategies for phytoremediation of Cd-contaminated soils or limiting Cd accumulation in food crops.
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Affiliation(s)
- Qingquan Liu
- Institute of Botany, Jiangsu Province and Chinese Academy of Sciences, Nanjing 210014, China; The Jiangsu Provincial Platform for Conservation and Utilization of Agricultural Germplasm, Nanjing 210014, China
| | - Yongxia Zhang
- Institute of Botany, Jiangsu Province and Chinese Academy of Sciences, Nanjing 210014, China; The Jiangsu Provincial Platform for Conservation and Utilization of Agricultural Germplasm, Nanjing 210014, China
| | - Yinjie Wang
- Institute of Botany, Jiangsu Province and Chinese Academy of Sciences, Nanjing 210014, China; The Jiangsu Provincial Platform for Conservation and Utilization of Agricultural Germplasm, Nanjing 210014, China
| | - Weilin Wang
- Institute of Botany, Jiangsu Province and Chinese Academy of Sciences, Nanjing 210014, China; The Jiangsu Provincial Platform for Conservation and Utilization of Agricultural Germplasm, Nanjing 210014, China
| | - Chunsun Gu
- Institute of Botany, Jiangsu Province and Chinese Academy of Sciences, Nanjing 210014, China; The Jiangsu Provincial Platform for Conservation and Utilization of Agricultural Germplasm, Nanjing 210014, China
| | - Suzhen Huang
- Institute of Botany, Jiangsu Province and Chinese Academy of Sciences, Nanjing 210014, China; The Jiangsu Provincial Platform for Conservation and Utilization of Agricultural Germplasm, Nanjing 210014, China
| | - Haiyan Yuan
- Institute of Botany, Jiangsu Province and Chinese Academy of Sciences, Nanjing 210014, China; The Jiangsu Provincial Platform for Conservation and Utilization of Agricultural Germplasm, Nanjing 210014, China.
| | - Om Parkash Dhankher
- Stockbridge School of Agriculture, University of Massachusetts Amherst, Amherst, MA 01003, USA.
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Xie Y, Luo Y, Sheng M, Peng H, Gu Y, Xu H, Zhao Y. 24-Epibrassinolide combined with heavy metal resistant bacteria enhancing phytoextraction of Amaranthus hypochondriacus L. in Cd-contaminated soil. JOURNAL OF HAZARDOUS MATERIALS 2020; 399:123031. [PMID: 32516649 DOI: 10.1016/j.jhazmat.2020.123031] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/30/2019] [Revised: 05/21/2020] [Accepted: 05/24/2020] [Indexed: 06/11/2023]
Abstract
The remediation efficiency of phytoextraction on heavy metal could be influenced by metal bioavailability and plant growth. Hence, we applied a synergistic intensification system with plant hormone (24-Epibrassinolide, EBR) and metal-resistant bacterium (Serratia sp. CTZ4) to enhance Cd extraction of Amaranthus hypochondriacus L. in contaminated soil. Results demonstrated that the combination of CTZ4 and EBR promoted soil microecology through decreasing soil pH, improving soil enzymatic activity (dehydrogenase, invertase, acid phosphate, urease). Besides, microbial community structure was evaluated to understand the diversity and relative abundance of microbe in soil after remediation. Moreover, the maximum extraction of Cd was 5.91 mg kg-1 and increased about 60.16 % to CK. Meanwhile, the antioxidant system (SOD, CAT activities) of plant was improved significantly as well as plants biomass increasing by 46.02 % with the combination of EBR and CTZ4. Thus, our results proved that the utilization of EBR and CTZ4 is an alternated method to enhance phytoextraction efficiency of A. hypochondriacus in Cd-contaminated soil.
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Affiliation(s)
- Yanluo Xie
- Key Laboratory of Bio-Resource and Eco-Environment of Ministry of Education, College of Life Sciences, Sichuan University, Chengdu 610065, Sichuan, PR China
| | - Yao Luo
- Key Laboratory of Bio-Resource and Eco-Environment of Ministry of Education, College of Life Sciences, Sichuan University, Chengdu 610065, Sichuan, PR China
| | - Mingping Sheng
- Key Laboratory of Bio-Resource and Eco-Environment of Ministry of Education, College of Life Sciences, Sichuan University, Chengdu 610065, Sichuan, PR China
| | - He Peng
- Key Laboratory of Bio-Resource and Eco-Environment of Ministry of Education, College of Life Sciences, Sichuan University, Chengdu 610065, Sichuan, PR China
| | - Yuanming Gu
- Key Laboratory of Bio-Resource and Eco-Environment of Ministry of Education, College of Life Sciences, Sichuan University, Chengdu 610065, Sichuan, PR China
| | - Heng Xu
- Key Laboratory of Bio-Resource and Eco-Environment of Ministry of Education, College of Life Sciences, Sichuan University, Chengdu 610065, Sichuan, PR China.
| | - Yun Zhao
- Key Laboratory of Bio-Resource and Eco-Environment of Ministry of Education, College of Life Sciences, Sichuan University, Chengdu 610065, Sichuan, PR China.
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26
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Rahman ME, Bin Halmi MIE, Bin Abd Samad MY, Uddin MK, Mahmud K, Abd Shukor MY, Sheikh Abdullah SR, Shamsuzzaman SM. Design, Operation and Optimization of Constructed Wetland for Removal of Pollutant. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2020; 17:E8339. [PMID: 33187288 PMCID: PMC7698012 DOI: 10.3390/ijerph17228339] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/23/2020] [Revised: 10/26/2020] [Accepted: 10/31/2020] [Indexed: 01/30/2023]
Abstract
Constructed wetlands (CWs) are affordable and reliable green technologies for the treatment of various types of wastewater. Compared to conventional treatment systems, CWs offer an environmentally friendly approach, are low cost, have fewer operational and maintenance requirements, and have a high potential for being applied in developing countries, particularly in small rural communities. However, the sustainable management and successful application of these systems remain a challenge. Therefore, after briefly providing basic information on wetlands and summarizing the classification and use of current CWs, this study aims to provide and inspire sustainable solutions for the performance and application of CWs by giving a comprehensive review of CWs' application and the recent development of their sustainable design, operation, and optimization for wastewater treatment. To accomplish this objective, thee design and management parameters of CWs, including macrophyte species, media types, water level, hydraulic retention time (HRT), and hydraulic loading rate (HLR), are discussed. Besides these, future research on improving the stability and sustainability of CWs are highlighted. This article provides a tool for researchers and decision-makers for using CWs to treat wastewater in a particular area. This paper presents an aid for informed analysis, decision-making, and communication. The review indicates that major advances in the design, operation, and optimization of CWs have greatly increased contaminant removal efficiencies, and the sustainable application of this treatment system has also been improved.
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Affiliation(s)
- Md Ekhlasur Rahman
- Department of Land Management, Faculty of Agriculture, Universiti Putra Malaysia, Serdang 43400, Malaysia; (M.E.R.); (M.Y.B.A.S.); (M.K.U.)
- Divisional Laboratory, Soil Resource Development Institute, Krishi Khamar Sarak, Farmgate, Dhaka-1215, Bangladesh;
| | - Mohd Izuan Effendi Bin Halmi
- Department of Land Management, Faculty of Agriculture, Universiti Putra Malaysia, Serdang 43400, Malaysia; (M.E.R.); (M.Y.B.A.S.); (M.K.U.)
| | - Mohd Yusoff Bin Abd Samad
- Department of Land Management, Faculty of Agriculture, Universiti Putra Malaysia, Serdang 43400, Malaysia; (M.E.R.); (M.Y.B.A.S.); (M.K.U.)
| | - Md Kamal Uddin
- Department of Land Management, Faculty of Agriculture, Universiti Putra Malaysia, Serdang 43400, Malaysia; (M.E.R.); (M.Y.B.A.S.); (M.K.U.)
| | - Khairil Mahmud
- Department of Crop Science, Faculty of Agriculture, Universiti Putra Malaysia, Serdang 43400, Malaysia;
| | - Mohd Yunus Abd Shukor
- Department of Biochemistry, Faculty of Biotechnology and Biomolecular Science, Universiti Putra Malaysia, Serdang 43400, Malaysia;
| | - Siti Rozaimah Sheikh Abdullah
- Department of Chemical & Process Engineering, Faculty of Engineering & Built Environment, Universiti Kebangsaan Malaysia, UKM Bangi 43600, Malaysia;
| | - S M Shamsuzzaman
- Divisional Laboratory, Soil Resource Development Institute, Krishi Khamar Sarak, Farmgate, Dhaka-1215, Bangladesh;
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27
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Rahman Z, Singh VP. Bioremediation of toxic heavy metals (THMs) contaminated sites: concepts, applications and challenges. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2020; 27:27563-27581. [PMID: 32418096 DOI: 10.1007/s11356-020-08903-0] [Citation(s) in RCA: 53] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/10/2019] [Accepted: 04/15/2020] [Indexed: 06/11/2023]
Abstract
Heavy metal contamination is a global issue, where the prevalent contaminants are arsenic (As), cadmium (Cd), chromium (Cr)(VI), mercury (Hg), and lead (Pb). More often, they are collectively known as "most problematic heavy metals" and "toxic heavy metals" (THMs). Their treatment through a variety of biological processes is one of the prime interests in remediation studies, where heavy metal-microbe interaction approaches receive high interest for their cost effective and ecofriendly solutions. In this review, we provide an up to date information on different microbial processes (bioremediation) for the removal of THMs. For the same, emphasis is put on oxidation-reduction, biomineralization, bioprecipitation, bioleaching, biosurfactant technology, biovolatilization, biosorption, bioaccumulation, and microbe-assisted phytoremediation with their selective advantages and disadvantages. Further, the literature briefly discusses about the various setups of cleaning processes of THMs in environment under ex situ and in situ applications. Lately, the study sheds light on the manipulation of microorganisms through genetic engineering and nanotechnology for their advanced treatment approaches.
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Affiliation(s)
- Zeeshanur Rahman
- Department of Botany, Zakir Husain Delhi College, University of Delhi, Delhi, India.
- Department of Botany, University of Delhi, Delhi, India.
| | - Ved Pal Singh
- Department of Botany, University of Delhi, Delhi, India
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28
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Jia Q, Dahms HU, Wang L. Detection of Metallothionein Proteins by Enzyme-Linked Immunosorbent Assay (ELISA). Curr Pharm Biotechnol 2020; 21:544-554. [DOI: 10.2174/1389201020666191127124629] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2019] [Revised: 07/13/2019] [Accepted: 10/25/2019] [Indexed: 02/07/2023]
Abstract
Metallothioneins (MTs) are low-molecular-weight, cysteine-rich proteins that bind to heavy
metals. MTs play a key role in the homeostasis of metal ions, maintaining intracellular redox equilibria
and free radical scavenging. In several studies, under different conditions such as cancer development,
drug therapy and heavy metal stress, the unique structural changes and functional effects of MT were
studied. Although several assays are available to monitor the content and type of Metallothionein (MT)
from environmental samples or in biomedical assays, Enzyme-Linked Immunosorbent Assays (ELISA)
became the preferred method of MT detection. ELISA is low in cost, specific, simple, and efficient.
This review evaluates the advantages and disadvantages of using different types of ELISA in the
detection of metallothioneins from environmental or clinical samples as well as ways of its validation
and cross-validation.
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Affiliation(s)
- Qingyun Jia
- School of Life Science, Shanxi University, Taiyuan 030006, China
| | - Hans-Uwe Dahms
- Department of Biomedical Science and Environmental Biology, Kaohsiung Medical University, Kaohsiung 80708, Taiwan
| | - Lan Wang
- School of Life Science, Shanxi University, Taiyuan 030006, China
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29
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Shen S, Chen J, Chang J, Xia B. Using bioenergy crop cassava ( Manihot esculenta) for reclamation of heavily metal-contaminated land. INTERNATIONAL JOURNAL OF PHYTOREMEDIATION 2020; 22:1313-1320. [PMID: 32425052 DOI: 10.1080/15226514.2020.1768512] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
Heavy metal contamination of agricultural lands may give rise to health risks by cultivation and consumption of food crops from such lands, as well as result in economic loss. Phytoremediation is an eco-friendly and cost-effective approach to restore contaminated soil. However, the restoration process is slow and its sustainability is difficult to maintain. Bioenergy crops may provide alternative economic benefits to agriculture sector and reduce the risks associated with transfering heavy metals into food webs. In this study, a field experiment was carried out to determine the level of reclamation that would be attained in severely heavy metal-contaminated land by planting cassava (Manihot esculenta), a bioenergy crop. The results showed that cassava could grow well on the derelict land, with a fresh tuber yield of 23.13-26.22 t ha-1 in one growing season, which could potentially produce 3680-4160 L ha-1 bioethanol. The economic income of the cassava was estimated to be 11.6-13.1 × 103 CNY ha-1. Among the cassava tissues, metal concentrations were lowest in the tuber. The soil fertility and acidity were ameliorated after cassava plantation, and the mobile and bioavailable metal fractions in the soils were decreased. The cultivation of cassava as a renewable energy crop appears applicable for sustainable utilization and reclamation of heavy metal-contaminated land.
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Affiliation(s)
- Shili Shen
- School of Ecology and Environmental Science & Yunnan Key Laboratory for Plateau Mountain Ecology and Restoration of Degraded Environments, Yunnan University, Kunming, China
| | - Jinquan Chen
- School of Ecology and Environmental Science & Yunnan Key Laboratory for Plateau Mountain Ecology and Restoration of Degraded Environments, Yunnan University, Kunming, China
| | - Junjun Chang
- School of Ecology and Environmental Science & Yunnan Key Laboratory for Plateau Mountain Ecology and Restoration of Degraded Environments, Yunnan University, Kunming, China
| | - Beicheng Xia
- School of Environmental Science and Engineering, Sun Yat-Sen University, Guangzhou, China
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30
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Katiyar P, Pandey N, Sahu KK. Biological approaches of fluoride remediation: potential for environmental clean-up. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2020; 27:13044-13055. [PMID: 32146673 DOI: 10.1007/s11356-020-08224-2] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/12/2019] [Accepted: 02/24/2020] [Indexed: 06/10/2023]
Abstract
Fluoride (F), anion of fluorine which is naturally present in soil and water, behaves as toxic inorganic pollutant even at lower concentration and needs immediate attention. Its interaction with flora, fauna and other forms of life, such as microbes, adversely affect various physiochemical parameters by interfering with several metabolic pathways. Conventional methods of F remediation are time-consuming, laborious and cost intensive, which renders them uneconomical for sustainable agriculture. The solution lies in cracking down this environmental contaminant by adopting economic, eco-friendly, cost-effective and modern technologies. Biological processes, viz. bioremediation involving the use of bacteria, fungi, algae and higher plants that holds promising alternative to manage F pollution, recover contaminated soil and improve vegetation. The efficiency of indigenous natural agents may be enhanced, improved and selected over the hazardous chemicals in sustainable agriculture. This review article emphasizes on various biological approaches for the remediation of F-contaminated environment, and exploring their potential applications in environmental clean-up. It further focuses on thorough systemic study of modern biotechnological approaches such as gene editing and gene manipulation techniques for enhancing the plant-microbe interactions for F degradation, drawing attention towards latest progresses in the field of microbial assisted treatment of F-contaminated ecosystems. Future research and understanding of the molecular mechanisms of F bioremediation would add on to the possibilities of the application of more competent strains showing striking results under diverse ecological conditions.
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Affiliation(s)
- Priya Katiyar
- School of Studies in Biotechnology, Pt. Ravishankar Shukla University, Raipur, 492 010, India
| | - Neha Pandey
- School of Studies in Biotechnology, Pt. Ravishankar Shukla University, Raipur, 492 010, India
- Kristu Jayanti College (Autonomous), K. Narayanapura, Kothanur, Bengaluru, 560 077, India
| | - Keshav Kant Sahu
- School of Studies in Biotechnology, Pt. Ravishankar Shukla University, Raipur, 492 010, India.
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31
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Rai PK, Kim KH, Lee SS, Lee JH. Molecular mechanisms in phytoremediation of environmental contaminants and prospects of engineered transgenic plants/microbes. THE SCIENCE OF THE TOTAL ENVIRONMENT 2020; 705:135858. [PMID: 31846820 DOI: 10.1016/j.scitotenv.2019.135858] [Citation(s) in RCA: 59] [Impact Index Per Article: 14.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/24/2019] [Revised: 11/21/2019] [Accepted: 11/28/2019] [Indexed: 05/06/2023]
Abstract
Concerns about emerging environmental contaminants have been growing along with industrialization and urbanization around the globe. Among various options for remediating these contaminants, phytotechnology is suggested as a feasible option to maintain the environmental sustainability. The recent advances in phytoremediation, genetic/molecular/omics/metabolic engineering, and nanotechnology are opening new paths for efficient treatment of emerging organic/inorganic contaminants. In this respect, elucidation of molecular mechanisms and genetic engineering of hyperaccumulator plants is expected to enhance remediation of environmental contaminants. This review was organized to offer valuable insights into the molecular mechanisms of phytoremediation and the prospects of transgenic hyperaccumulators with enhanced stress tolerance to diverse contaminants such as heavy metals and metalloids, xenobiotics, explosives, poly aromatic hydrocarbons (PAHs), petroleum hydrocarbons, pesticides, and nanoparticles. The roles of genoremediation and nanoparticles in augmenting the phytoremediation technology are also described in an interrelated framework with biotechnological prospects (e.g., plant molecular nano-farming). Finally, political debate on the preferential use of crops versus non-crop hyperaccumulators in genoremediation, limitations of transgenics in phytotechnologies, and their public acceptance issues are discussed in the policy framework.
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Affiliation(s)
- Prabhat Kumar Rai
- Department of Environmental Science, Mizoram University, Aizawl 796004, India
| | - Ki-Hyun Kim
- Department of Civil and Environmental Engineering, Hanyang University, Seoul 04763, Republic of Korea.
| | - Sang Soo Lee
- Department of Environmental Engineering, Yonsei University, Wonju 26494, Republic of Korea.
| | - Jin-Hong Lee
- Department of Environmental Engineering, Chungnam National University, Daejeon 34148, Republic of Korea
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Saxena G, Purchase D, Mulla SI, Saratale GD, Bharagava RN. Phytoremediation of Heavy Metal-Contaminated Sites: Eco-environmental Concerns, Field Studies, Sustainability Issues, and Future Prospects. REVIEWS OF ENVIRONMENTAL CONTAMINATION AND TOXICOLOGY 2020; 249:71-131. [PMID: 30806802 DOI: 10.1007/398_2019_24] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Environmental contamination due to heavy metals (HMs) is of serious ecotoxicological concern worldwide because of their increasing use at industries. Due to non-biodegradable and persistent nature, HMs cause serious soil/water pollution and severe health hazards in living beings upon exposure. HMs can be genotoxic, carcinogenic, mutagenic, and teratogenic in nature even at low concentration. They may also act as endocrine disruptors and induce developmental as well as neurological disorders, and thus, their removal from our natural environment is crucial for the rehabilitation of contaminated sites. To cope with HM pollution, phytoremediation has emerged as a low-cost and eco-sustainable solution to conventional physicochemical cleanup methods that require high capital investment and labor alter soil properties and disturb soil microflora. Phytoremediation is a green technology wherein plants and associated microbes are used to remediate HM-contaminated sites to safeguard the environment and protect public health. Hence, in view of the above, the present paper aims to examine the feasibility of phytoremediation as a sustainable remediation technology for the management of metal-contaminated sites. Therefore, this paper provides an in-depth review on both the conventional and novel phytoremediation approaches; evaluates their efficacy to remove toxic metals from our natural environment; explores current scientific progresses, field experiences, and sustainability issues; and revises world over trends in phytoremediation research for its wider recognition and public acceptance as a sustainable remediation technology for the management of contaminated sites in the twenty-first century.
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Affiliation(s)
- Gaurav Saxena
- Laboratory for Bioremediation and Metagenomics Research (LBMR), Department of Environmental Microbiology (DEM), Babasaheb Bhimrao Ambedkar University (A Central University), Lucknow, Uttar Pradesh, India
| | - Diane Purchase
- Department of Natural Sciences, Faculty of Science and Technology, Middlesex University, London, UK
| | - Sikandar I Mulla
- CAS Key Laboratory of Urban Pollutant Conversion, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen, People's Republic of China
| | - Ganesh Dattatraya Saratale
- Department of Food Science and Biotechnology, Dongguk University-Seoul, Goyang-si, Gyeonggi-do, Republic of Korea
| | - Ram Naresh Bharagava
- Laboratory for Bioremediation and Metagenomics Research (LBMR), Department of Environmental Microbiology (DEM), Babasaheb Bhimrao Ambedkar University (A Central University), Lucknow, Uttar Pradesh, India.
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33
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Dhaliwal SS, Singh J, Taneja PK, Mandal A. Remediation techniques for removal of heavy metals from the soil contaminated through different sources: a review. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2020; 27:1319-1333. [PMID: 31808078 DOI: 10.1007/s11356-019-06967-1] [Citation(s) in RCA: 126] [Impact Index Per Article: 31.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/07/2019] [Accepted: 11/05/2019] [Indexed: 04/16/2023]
Abstract
Heavy metal pollution is one of the serious problems and contaminates the environment by different means with the blow of industries in several countries. Different techniques like physical, chemical, and biological have been used for removal of heavy metal contaminants from the environment. Some of these have limitations such as cost, time consumption, logistical problems, and mechanical involvedness. Nowadays, in situ immobilization of metals, phytoremediation and biological techniques turned out to be best solution for elimination of metal(loid) s from the soil. Here, we reviewed the different remediation techniques for extraction of heavy metals from soil and especially highlighting in situ immobilization technique. The aim of remediation efforts at the contaminant site is to restrict the heavy metal to enter in the environment, food chain, and exposure to humans beings. The type of method used at a given site depends on the various factors like natural processes take place at the contaminated site, soil type, type of chemicals, and the depth of contaminated site.
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Affiliation(s)
| | - Jaswinder Singh
- Department of Zoology, Khalsa College Amritsar, Amritsar, Punjab, India.
| | - Parminder Kaur Taneja
- Department of Soil and Water Conservation, Government of Punjab, Bathinda, Punjab, India
| | - Agniva Mandal
- Department of Agricultural Chemistry and Soil Science, Bidhan Chandra Krishi Viswavidyalaya, Mohanpur, West Bengal, India
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34
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Ahemad M. Remediation of metalliferous soils through the heavy metal resistant plant growth promoting bacteria: Paradigms and prospects. ARAB J CHEM 2019. [DOI: 10.1016/j.arabjc.2014.11.020] [Citation(s) in RCA: 97] [Impact Index Per Article: 19.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022] Open
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35
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He W, Megharaj M, Wu CY, Subashchandrabose SR, Dai CC. Endophyte-assisted phytoremediation: mechanisms and current application strategies for soil mixed pollutants. Crit Rev Biotechnol 2019; 40:31-45. [PMID: 31656090 DOI: 10.1080/07388551.2019.1675582] [Citation(s) in RCA: 39] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Phytoremediation uses plants and associated microbes to remove pollutants from the environment and is considered a promising bioremediation method. Compared with well-described single contaminant treatments, the number of studies reporting phytoremediation of soil mixed pollutants has increased recently. Endophytes, including bacteria and fungi, exhibit beneficial traits for the promotion of plant growth, stress alleviation, and biodegradation. Moreover, endophytes either directly or indirectly assist host plants to survive high concentrations of organic and inorganic pollutants in the soil. Endophytic microorganisms can also regulate the plant metabolism in different ways, exhibiting a variety of physiological characteristics. This review summarizes the taxa and physiological properties of endophytic microorganisms that may participate in the detoxification of contaminant mixtures. Furthermore, potential biomolecules that may enhance endophyte mediated phytoremediation are discussed. The practical applications of pollutant-degrading endophytes and current strategies for applying this valuable bio-resource to soil phytoremediation are summarized.
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Affiliation(s)
- Wei He
- College of Life Sciences, Nanjing Normal University, Nanjing, China.,Global Centre for Environmental Remediation (GCER), The University of Newcastle (UoN), Callaghan, Australia
| | - Mallavarapu Megharaj
- Global Centre for Environmental Remediation (GCER), The University of Newcastle (UoN), Callaghan, Australia
| | - Chun-Ya Wu
- College of Life Sciences, Nanjing Normal University, Nanjing, China
| | - Suresh R Subashchandrabose
- Global Centre for Environmental Remediation (GCER), The University of Newcastle (UoN), Callaghan, Australia
| | - Chuan-Chao Dai
- College of Life Sciences, Nanjing Normal University, Nanjing, China
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Guo D, Ren C, Ali A, Du J, Zhang Z, Li R, Zhang Z. Streptomyces pactum and sulfur mediated the antioxidant enzymes in plant and phytoextraction of potentially toxic elements from a smelter-contaminated soils. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2019; 251:37-44. [PMID: 31071631 DOI: 10.1016/j.envpol.2019.03.051] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/16/2019] [Revised: 03/12/2019] [Accepted: 03/13/2019] [Indexed: 06/09/2023]
Abstract
The toxic potentially toxic metals elements (PTEs) discharged from industrial activities and agricultural practices persistently pose multiple hazards to environment and living organisms. Microbe-assisted phytoremediation provide an effective approach to remediate PTEs-contaminated soils. A phytoextraction process involved the application of Streptomyces pactum (Act12, 1.0, 2.0 and 3.0 g kg-1 dry soil, respectively) alone/jointly with sulfur was executed. The main texture of the tested soil was sandy loam and with a pH 8.27. The obtained results showed that the leaf pigments and plant biomass were improved after the application of the Act12, while the shoot fresh weight, chlorophyll a and chlorophyll b decreased by 57.8, 38.2 and 40.7%, respectively, after treatment with sulfur. Similarly, sulfur application facilitated the malondialdehyde (MDA) production by 18.4-33.6% compared to the control (no amendments). Both peroxidase (POD) and superoxide dismutase (SOD) activities were boosted, while the catalase (CAT) activity was suppressed with Act12 alone/jointly with sulfur treatment. The sulfur combined with elevated Act12 levels notably increased the cadmium (Cd) and zinc (Zn) concentrations both in shoots and roots, while the elemental extraction amount showed the removal efficiency following the order: Act12 alone > control > Act12 jointly with sulfur. Taken together, the results suggested that Streptomyces pactum and sulfur assisted the phytoremediation process, while further studies should be conducted in the field to test practical application.
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Affiliation(s)
- Di Guo
- College of Natural Resources & Environment, Northwest A&F University, Yangling, Shaanxi, 712100, China
| | - Chunyan Ren
- College of Natural Resources & Environment, Northwest A&F University, Yangling, Shaanxi, 712100, China
| | - Amjad Ali
- College of Natural Resources & Environment, Northwest A&F University, Yangling, Shaanxi, 712100, China
| | - Juan Du
- College of Natural Resources & Environment, Northwest A&F University, Yangling, Shaanxi, 712100, China
| | - Ziyang Zhang
- College of Natural Resources & Environment, Northwest A&F University, Yangling, Shaanxi, 712100, China
| | - Ronghua Li
- College of Natural Resources & Environment, Northwest A&F University, Yangling, Shaanxi, 712100, China
| | - Zengqiang Zhang
- College of Natural Resources & Environment, Northwest A&F University, Yangling, Shaanxi, 712100, China.
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Liu N, Dai J, Tian H, He H, Zhu Y. Effect of ethylenediaminetetraacetic acid and biochar on Cu accumulation and subcellular partitioning in Amaranthus retroflexus L. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2019; 26:10343-10353. [PMID: 30761486 DOI: 10.1007/s11356-019-04448-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/02/2018] [Accepted: 01/31/2019] [Indexed: 06/09/2023]
Abstract
Phytoremediation combined with amendments and stabilization technologies are two crucial methods to deal with soil contaminated with heavy metals. Copper (Cu) contamination in soil near Cu mines poses a serious threat to ecosystems and human health. This study investigated the effect of ethylenediaminetetraacetic acid (EDTA) and biochar (BC) on the accumulation and subcellular distribution of Cu in Amaranthus retroflexus L. to demonstrate the remediation mechanism of EDTA and BC at the cellular level. The role of calcium (Ca) in response to Cu stress in A. retroflexus was also elucidated. We designed a pot experiment with a randomized block of four Cu levels (0, 100, 200, 400 mg kg-1) and three treatments (control, amendment with EDTA, and amendment with BC). The subcellular components were divided into three parts (cell walls, organelles, and soluble fraction) by differential centrifugation. The results showed that EDTA amendment significantly increased (p < 0.05) the concentrations of Cu in root cell walls and all subcellular components of stems and leaves (cell walls, organelles, and the soluble fraction). EDTA amendment significantly increased (p < 0.05) the proportion of exchangeable fraction and carbonate fraction in the soil. While BC amendment significantly decreased (p < 0.05) the concentrations of Cu in root cell walls and the root soluble fraction, it had no significant effects on Cu concentrations in the subcellular components of stems and leaves. The results revealed that EDTA mainly promoted the transfer of Cu to aboveground parts and accumulation in subcellular components of stems and leaves, while BC mainly limited Cu accumulation in root cell walls and the root soluble fraction. Ca concentrations in cell walls of roots, stems, and leaves increased as the Cu stress increased in all treatment groups, indicating that Ca plays an important role in relieving Cu toxicity in Amaranthus retroflexus L.
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Affiliation(s)
- Na Liu
- College of Environmental and Resource Sciences, Shanxi University, Taiyuan, 030000, China
- Environment Research Institute, Shandong University, Qingdao, 266237, China
| | - Jiulan Dai
- Environment Research Institute, Shandong University, Qingdao, 266237, China
| | - Haoqi Tian
- College of Environmental and Resource Sciences, Shanxi University, Taiyuan, 030000, China
| | - Huan He
- Department of Biology, Terrestrial Ecology Section, Copenhagen University, Universitsparken 15, 2100, Copenhagen, Denmark
| | - Yuen Zhu
- College of Environmental and Resource Sciences, Shanxi University, Taiyuan, 030000, China.
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Suman J, Uhlik O, Viktorova J, Macek T. Phytoextraction of Heavy Metals: A Promising Tool for Clean-Up of Polluted Environment? FRONTIERS IN PLANT SCIENCE 2018; 9:1476. [PMID: 30459775 PMCID: PMC6232834 DOI: 10.3389/fpls.2018.01476] [Citation(s) in RCA: 142] [Impact Index Per Article: 23.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/02/2018] [Accepted: 09/20/2018] [Indexed: 05/19/2023]
Abstract
Pollution by heavy metals (HM) represents a serious threat for both the environment and human health. Due to their elemental character, HM cannot be chemically degraded, and their detoxification in the environment mostly resides either in stabilization in situ or in their removal from the matrix, e.g., soil. For this purpose, phytoremediation, i.e., the application of plants for the restoration of a polluted environment, has been proposed as a promising green alternative to traditional physical and chemical methods. Among the phytoremediation techniques, phytoextraction refers to the removal of HM from the matrix through their uptake by a plant. It possesses considerable advantages over traditional techniques, especially due to its cost effectiveness, potential treatment of multiple HM simultaneously, no need for the excavation of contaminated soil, good acceptance by the public, the possibility of follow-up processing of the biomass produced, etc. In this review, we focused on three basic HM phytoextraction strategies that differ in the type of plant species being employed: natural hyperaccumulators, fast-growing plant species with high-biomass production and, potentially, plants genetically engineered toward a phenotype that favors efficient HM uptake and boosted HM tolerance. Considerable knowledge on the applicability of plants for HM phytoextraction has been gathered to date from both lab-scale studies performed under controlled model conditions and field trials using real environmental conditions. Based on this knowledge, many specific applications of plants for the remediation of HM-polluted soils have been proposed. Such studies often also include suggestions for the further processing of HM-contaminated biomass, therefore providing an added economical value. Based on the examples presented here, we recommend that intensive research be performed on the selection of appropriate plant taxa for various sets of conditions, environmental risk assessment, the fate of HM-enriched biomass, economical aspects of the process, etc.
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Affiliation(s)
- Jachym Suman
- Department of Biochemistry and Microbiology, Faculty of Food and Biochemical Technology, University of Chemistry and Technology, Prague, Czechia
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Jacob JM, Karthik C, Saratale RG, Kumar SS, Prabakar D, Kadirvelu K, Pugazhendhi A. Biological approaches to tackle heavy metal pollution: A survey of literature. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2018; 217:56-70. [PMID: 29597108 DOI: 10.1016/j.jenvman.2018.03.077] [Citation(s) in RCA: 223] [Impact Index Per Article: 37.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/27/2017] [Revised: 03/07/2018] [Accepted: 03/17/2018] [Indexed: 05/21/2023]
Abstract
Pollution by heavy metals has been identified as a global threat since the inception of industrial revolution. Heavy metal contamination induces serious health and environmental hazards due to its toxic nature. Remediation of heavy metals by conventional methods is uneconomical and generates a large quantity of secondary wastes. On the other hand, biological agents such as plants, microorganisms etc. offer easy and eco-friendly ways for metal removal; hence, considered as efficient and alternative tools for metal removal. Bioremediation involves adsorption, reduction or removal of contaminants from the environment through biological resources (both microorganisms and plants). The heavy metal remediation properties of microorganisms stem from their self defense mechanisms such as enzyme secretion, cellular morphological changes etc. These defence mechanisms comprise the active involvement of microbial enzymes such as oxidoreductases, oxygenases etc, which influence the rates of bioremediation. Further, immobilization techniques are improving the practice at industrial scales. This article summarizes the various strategies inherent in the biological sorption and remediation of heavy metals.
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Affiliation(s)
- Jaya Mary Jacob
- Department of Biotechnology and Biochemical Engineering, Sree Buddha College of Engineering, APJ Abdul Kalam Kerala Technological University, Kerala, India
| | - Chinnannan Karthik
- DRDO-BU CLS, Bharathiar University Campus, Coimbatore-46, Tamil Nadu, India
| | - Rijuta Ganesh Saratale
- Research Institute of Biotechnology and Medical Converged Science, Dongguk University-Seoul, Ilsandong-gu, Goyang-si, Gyeonggido, 10326, Republic of Korea
| | - Smita S Kumar
- Center for Rural Development and Technology, Indian Institute of Technology Delhi, Hauz Khas, New Delhi, Delhi, 110016, India
| | | | - K Kadirvelu
- DRDO-BU CLS, Bharathiar University Campus, Coimbatore-46, Tamil Nadu, India
| | - Arivalagan Pugazhendhi
- Innovative Green Product Synthesis and Renewable Environment Development Research Group, Faculty of Environment and Labour Safety, Ton Duc Thang University, Ho Chi Minh City, Viet Nam.
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Basu S, Rabara RC, Negi S, Shukla P. Engineering PGPMOs through Gene Editing and Systems Biology: A Solution for Phytoremediation? Trends Biotechnol 2018; 36:499-510. [DOI: 10.1016/j.tibtech.2018.01.011] [Citation(s) in RCA: 38] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2017] [Revised: 01/22/2018] [Accepted: 01/23/2018] [Indexed: 01/17/2023]
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Luo J, He M, Qi S, Wu J, Gu XS. Effect of planting density and harvest protocol on field-scale phytoremediation efficiency by Eucalyptus globulus. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2018; 25:11343-11350. [PMID: 29417481 DOI: 10.1007/s11356-018-1427-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/19/2017] [Accepted: 01/29/2018] [Indexed: 06/08/2023]
Abstract
The phytoremediation efficiency of multi-metal-polluted sites in an electronic waste recycling town by Eucalyptus globulus was evaluated through a series of 2-year field experiments. Different initial planting densities (2500, 5000, and 10,000 plants per ha), coppice rotations, and harvesting position (5 or 30 cm above the ground) protocols were designed to improve the remediation potential of the species. There were unnoticeable variations in metal concentrations and distribution characteristics in plant tissues in a low and medium planting-density field during the experimental period. At the end of the experiment, total biomass production per hectare in different protocols displayed a wide range with maximum yield produced in high density, moderate harvesting, and coppice rotation protocol being 2.9 times higher than the minimum yield. The moderate harvest protocol performed with medium planting density was the optimal Cd and Cu decontamination technique. Although the high planting-density field without coppice rotation had the strongest potential for Pb decontamination, it would take more time to remove other metals for the multi-metal-polluted soil decontamination. Considering the remediation efficiency and maintainability of the cultivation system, the moderate harvest protocol performed with the medium planting density was commended for phytoremediation of e-waste recycling impacted area.
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Affiliation(s)
- Jie Luo
- College of Resources and Environment, Yangtze University, 111 University Road, Wuhan, People's Republic of China.
- China University of Geosciences, 388 Lumo Road, Wuhan, 430074, People's Republic of China.
| | - Mei He
- College of Resources and Environment, Yangtze University, 111 University Road, Wuhan, People's Republic of China
| | - Shihua Qi
- China University of Geosciences, 388 Lumo Road, Wuhan, 430074, People's Republic of China
| | - Jian Wu
- China University of Geosciences, 388 Lumo Road, Wuhan, 430074, People's Republic of China
| | - Xiaowen Sophie Gu
- The University of Melbourne, Grattan Street Parkville, Melbourne, VIC, 3010, Australia
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Luo J, Cai L, Qi S, Wu J, Sophie Gu X. Influence of direct and alternating current electric fields on efficiency promotion and leaching risk alleviation of chelator assisted phytoremediation. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2018; 149:241-247. [PMID: 29241117 DOI: 10.1016/j.ecoenv.2017.12.005] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/26/2017] [Revised: 11/20/2017] [Accepted: 12/01/2017] [Indexed: 06/07/2023]
Abstract
Direct and alternating current electric fields with various voltages were used to improve the decontamination efficiency of chelator assisted phytoremediation for multi-metal polluted soil. The alleviation effect of electric field on leaching risk caused by chelator application during phytoremediation process was also evaluated. Biomass yield, pollutant uptake and metal leaching retardation under alternating current (AC) and direct current (DC) electric fields were compared. The biomass yield of Eucalyptus globulus under AC fields with various voltages (2, 4 and 10 V) were 3.91, 4.16 and 3.67kg, respectively, significantly higher than the chelator treatment without electric field (2.71kg). Besides growth stimulation, AC fields increased the metal concentrations of plant tissues especially in aerial parts manifested by the raised translocation factor of different metals. Direct current electric fields with low and moderate voltages increased the biomass production of the species to 3.45 and 3.12kg, respectively, while high voltage on the contrary suppressed the growth of the plants (2.66kg). Under DC fields, metal concentrations elevated obviously with increasing voltages and the metal translocation factors were similar under all voltages. Metal extraction per plant achieved the maximum value under moderate voltage due to the greatest biomass production. DC field with high voltage (10V) decreased the volume of leachate from the chelator treatment without electric field from 1224 to 56mL, while the leachate gathered from AC field treatments raised from 512 to 670mL. DC field can retard the downward movement of metals caused by chelator application more effectively relative to AC field due to the constant water flow and electroosmosis direction. Alternating current field had more promotive effect on chelator assisted phytoremediation efficiency than DC field illustrated by more metal accumulation in the species. However, with the consideration of leaching risk, DC field with moderate voltage was the optimal supplementary technique for phytoremediation.
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Affiliation(s)
- Jie Luo
- College of Resources and Environment, Yangtze University, 111 University Road, Wuhan, China; China University of Geosciences, 388 Lumo Road, Wuhan 430074, China.
| | - Limei Cai
- College of Resources and Environment, Yangtze University, 111 University Road, Wuhan, China
| | - Shihua Qi
- China University of Geosciences, 388 Lumo Road, Wuhan 430074, China
| | - Jian Wu
- China University of Geosciences, 388 Lumo Road, Wuhan 430074, China
| | - Xiaowen Sophie Gu
- The University of Melbourne, Grattan Street Parkville, Melbourne, VIC 3010, Australia
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Koźmińska A, Wiszniewska A, Hanus-Fajerska E, Muszyńska E. Recent strategies of increasing metal tolerance and phytoremediation potential using genetic transformation of plants. PLANT BIOTECHNOLOGY REPORTS 2018; 12:1-14. [PMID: 29503668 PMCID: PMC5829118 DOI: 10.1007/s11816-017-0467-2] [Citation(s) in RCA: 51] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/25/2017] [Accepted: 12/18/2017] [Indexed: 05/18/2023]
Abstract
Avoidance and reduction of soil contamination with heavy metals is one of the most serious global challenges. Nowadays, science offers us new opportunities of utilizing plants to extract toxic elements from the soil by means of phytoremediation. Plant abilities to uptake, translocate, and transform heavy metals, as well as to limit their toxicity, may be significantly enhanced via genetic engineering. This paper provides a comprehensive review of recent strategies aimed at the improvement of plant phytoremediation potential using plant transformation and employing current achievements in nuclear and cytoplasmic genome transformation. Strategies for obtaining plants suitable for effective soil clean-up and tolerant to excessive concentrations of heavy metals are critically assessed. Promising directions in genetic manipulations, such as gene silencing and cis- and intragenesis, are also discussed. Moreover, the ways of overcoming disadvantages of phytoremediation using genetic transformation approachare proposed. The knowledge gathered here could be useful for designing new research aimed at biotechnological improvement of phytoremediation efficiency.
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Affiliation(s)
- Aleksandra Koźmińska
- Institute of Plant Biology and Biotechnology, Faculty of Biotechnology and Horticulture, University of Agriculture in Krakow, Al. 29 Listopada 54, 31-425 Kraków, Poland
| | - Alina Wiszniewska
- Institute of Plant Biology and Biotechnology, Faculty of Biotechnology and Horticulture, University of Agriculture in Krakow, Al. 29 Listopada 54, 31-425 Kraków, Poland
| | - Ewa Hanus-Fajerska
- Institute of Plant Biology and Biotechnology, Faculty of Biotechnology and Horticulture, University of Agriculture in Krakow, Al. 29 Listopada 54, 31-425 Kraków, Poland
| | - Ewa Muszyńska
- Department of Botany, Faculty of Agriculture and Biology, Warsaw University of Life Sciences (SGGW), Nowoursynowska 159, Building 37, 02-776 Warsaw, Poland
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Martins V, Carneiro F, Conde C, Sottomayor M, Gerós H. The grapevine VvCAX3 is a cation/H + exchanger involved in vacuolar Ca 2+ homeostasis. PLANTA 2017; 246:1083-1096. [PMID: 28801786 DOI: 10.1007/s00425-017-2754-0] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/18/2017] [Accepted: 08/03/2017] [Indexed: 05/05/2023]
Abstract
The grapevine VvCAX3 mediates calcium transport in the vacuole and is mostly expressed in green grape berries and upregulated by Ca 2+ , Na + and methyl jasmonate. Calcium is an essential plant nutrient with important regulatory and structural roles in the berries of grapevine (Vitis vinifera L.). On the other hand, the proton-cation exchanger CAX proteins have been shown to impact Ca2+ homeostasis with important consequences for fruit integrity and resistance to biotic/abiotic stress. Here, the CAX gene found in transcriptomic databases as having one of the highest expressions in grapevine tissues, VvCAX3, was cloned and functionally characterized. Heterologous expression in yeast showed that a truncated version of VvCAX3 lacking its NNR autoinhibitory domain (sCAX3) restored the ability of the yeast strain to grow in 100-200 mM Ca2+, demonstrating a role in Ca2+ transport. The truncated VvCAX3 was further shown to be involved in the transport of Na+, Li+, Mn2+ and Cu2+ in yeast cells. Subcellular localization studies using fluorescently tagged proteins confirmed VvCAX3 as a tonoplast transporter. VvCAX3 is expressed in grapevine stems, leaves, roots, and berries, especially at pea size, decreasing gradually throughout development, in parallel with the pattern of calcium accumulation in the fruit. The transcript abundance of VvCAX3 was shown to be regulated by methyl jasmonate (MeJA), Ca2+, and Na+ in grape cell suspensions, and the VvCAX3 promotor contains several predicted cis-acting elements related to developmental and stress response processes. As a whole, the results obtained add new insights on the mechanisms involved in calcium homeostasis and intracellular compartmentation in grapevine, and indicate that VvCAX3 may be an interesting target towards the development of strategies for enhancement of grape berry properties.
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Affiliation(s)
- Viviana Martins
- Centro de Investigação e de Tecnologias Agro-ambientais e Biológicas, CITAB-UMinho Pole, Departamento de Biologia, Escola de Ciências, Universidade do Minho, Braga, Portugal.
| | - Filipa Carneiro
- Centro de Investigação e de Tecnologias Agro-ambientais e Biológicas, CITAB-UMinho Pole, Departamento de Biologia, Escola de Ciências, Universidade do Minho, Braga, Portugal
| | - Carlos Conde
- i3S-Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Porto, Portugal
- IBMC, Instituto de Biologia Molecular e Celular, Universidade do Porto, Porto, Portugal
| | - Mariana Sottomayor
- CIBIO-InBIO, Universidade do Porto, Campus de Vairão, Rua Padre Armando Quintas, Vairão, Portugal
- Departamento de Biologia, Faculdade de Ciências, Universidade do Porto, Porto, Portugal
| | - Hernâni Gerós
- Centro de Investigação e de Tecnologias Agro-ambientais e Biológicas, CITAB-UMinho Pole, Departamento de Biologia, Escola de Ciências, Universidade do Minho, Braga, Portugal
- Centro de Biologia Molecular e Ambiental (CBMA), Departamento de Biologia, Escola de Ciências, Universidade do Minho, Braga, Portugal
- Centro de Engenharia Biológica (CEB), Universidade do Minho, Braga, Portugal
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Ahanger MA, Akram NA, Ashraf M, Alyemeni MN, Wijaya L, Ahmad P. Plant responses to environmental stresses-from gene to biotechnology. AOB PLANTS 2017; 9:plx025. [PMID: 28775828 PMCID: PMC5534019 DOI: 10.1093/aobpla/plx025] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/10/2016] [Accepted: 06/25/2017] [Indexed: 05/21/2023]
Abstract
Increasing global population, urbanization and industrialization are increasing the rate of conversion of arable land into wasteland. Supplying food to an ever-increasing population is one of the biggest challenges that agriculturalists and plant scientists are currently confronting. Environmental stresses make this situation even graver. Despite the induction of several tolerance mechanisms, sensitive plants often fail to survive under environmental extremes. New technological approaches are imperative. Conventional breeding methods have a limited potential to improve plant genomes against environmental stress. Recently, genetic engineering has contributed enormously to the development of genetically modified varieties of different crops such as cotton, maize, rice, canola and soybean. The identification of stress-responsive genes and their subsequent introgression or overexpression within sensitive crop species are now being widely carried out by plant scientists. Engineering of important tolerance pathways, like antioxidant enzymes, osmolyte accumulation, membrane-localized transporters for efficient compartmentation of deleterious ions and accumulation of essential elements and resistance against pests or pathogens is also an area that has been intensively researched. In this review, the role of biotechnology and its successes, prospects and challenges in developing stress-tolerant crop cultivars are discussed.
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Affiliation(s)
| | - Nudrat Aisha Akram
- Department of Botany, Government College University, Faisalabad 38000, Pakistan
| | - Muhammad Ashraf
- Pakistan Science Foundation, Islamabad, Pakistan
- Department of Botany & Microbiology, King Saud University, Riyadh, Saudi Arabia
| | | | - Leonard Wijaya
- Department of Botany & Microbiology, King Saud University, Riyadh, Saudi Arabia
| | - Parvaiz Ahmad
- Department of Botany & Microbiology, King Saud University, Riyadh, Saudi Arabia
- Department of Botany, S.P. College, Srinagar, Jammu and Kashmir 190001, India
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Hilgert J, Sura-De Jong M, Fišer J, Tupá K, Vrbová M, Griga M, Macek T, Žiarovská J. The use of phosphomannose isomerase selection system for Agrobacterium-mediated transformation of tobacco and flax aimed for phytoremediation. JOURNAL OF ENVIRONMENTAL SCIENCE AND HEALTH. PART. B, PESTICIDES, FOOD CONTAMINANTS, AND AGRICULTURAL WASTES 2017; 52:338-345. [PMID: 28277078 DOI: 10.1080/03601234.2017.1283136] [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] [Indexed: 06/06/2023]
Abstract
A plant selection system based on the phosphomannose isomerase gene (pmi) as a selectable marker is often used to avoid selection using antibiotic resistance. Nevertheless, pmi gene is endogenous in several plant species and therefore difficult to use in such cases. Here we evaluated and compared Agrobacterium-mediated transformation of Linum usitatissimum breeding line AGT-952 (without endogenous pmi gene) and Nicotiana tabacum var. WSC-38 (with endogenous pmi gene). Transformation was evaluated for vectors bearing transgenes that have the potential to be involved in improved phytoremediation of contaminated environment. Tobacco regenerants selection resulted in 6.8% transformation efficiency when using a medium supplemented with 30 g/L mannose with stepwise decrease of the sucrose concentration. Similar transformation efficiency (5.3%) was achieved in transformation of flax. Relatively low selection efficiency was achieved (12.5% and 34.8%, respectively). The final detection of efficient pmi selection was conducted using PCR and the non-endogenous genes; pmi transgene for flax and todC2 transgene for tobacco plants.
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Affiliation(s)
- Jitka Hilgert
- a Department of Biochemistry and Microbiology , University of Chemistry and Technology , Prague , Czech Republic
| | - Martina Sura-De Jong
- a Department of Biochemistry and Microbiology , University of Chemistry and Technology , Prague , Czech Republic
| | - Jiří Fišer
- a Department of Biochemistry and Microbiology , University of Chemistry and Technology , Prague , Czech Republic
| | - Kateřina Tupá
- a Department of Biochemistry and Microbiology , University of Chemistry and Technology , Prague , Czech Republic
| | - Miroslava Vrbová
- b Plant Biotechnology Department , AGRITEC Plant Research Ltd. , Šumperk , Czech Republic
| | - Miroslav Griga
- b Plant Biotechnology Department , AGRITEC Plant Research Ltd. , Šumperk , Czech Republic
| | - Tomáš Macek
- a Department of Biochemistry and Microbiology , University of Chemistry and Technology , Prague , Czech Republic
| | - Jana Žiarovská
- c Department of Genetics and Plant Breeding , University of Agriculture in Nitra , Slovak Republic
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Huang L, Zhang H, Song Y, Yang Y, Chen H, Tang M. Subcellular Compartmentalization and Chemical Forms of Lead Participate in Lead Tolerance of Robinia pseudoacacia L. with Funneliformis mosseae. FRONTIERS IN PLANT SCIENCE 2017; 8:517. [PMID: 28443111 PMCID: PMC5385381 DOI: 10.3389/fpls.2017.00517] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/31/2016] [Accepted: 03/23/2017] [Indexed: 05/11/2023]
Abstract
The effect of arbuscular mycorrhizal fungus on the subcellular compartmentalization and chemical forms of lead (Pb) in Pb tolerance plants was assessed in a pot experiment in greenhouse conditions. We measured root colonization, plant growth, photosynthesis, subcellular compartmentalization and chemical forms of Pb in black locust (Robinia pseudoacacia L.) seedlings inoculated with Funneliformis mosseae isolate (BGC XJ01A) under a range of Pb treatments (0, 90, 900, and 3000 mg Pb kg-1 soil). The majority of Pb was retained in the roots of R. pseudoacacia under Pb stress, with a significantly higher retention in the inoculated seedlings. F. mosseae inoculation significantly increased the proportion of Pb in the cell wall and soluble fractions and decreased the proportion of Pb in the organelle fraction of roots, stems, and leaves, with the largest proportion of Pb segregated in the cell wall fraction. F. mosseae inoculation increased the proportion of inactive Pb (especially pectate- and protein-integrated Pb and Pb phosphate) and reduced the proportion of water-soluble Pb in the roots, stems, and leaves. The subcellular compartmentalization of Pb in different chemical forms was highly correlated with improved plant biomass, height, and photosynthesis in the inoculated seedlings. This study indicates that F. mosseae could improve Pb tolerance in R. pseudoacacia seedlings growing in Pb polluted soils.
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Affiliation(s)
- Li Huang
- College of Life Sciences, Northwest A&F UniversityYangling, China
| | - Haoqiang Zhang
- College of Forestry, Northwest A&F UniversityYangling, China
| | - Yingying Song
- College of Life Sciences, Northwest A&F UniversityYangling, China
| | - Yurong Yang
- College of Forestry, Northwest A&F UniversityYangling, China
| | - Hui Chen
- College of Forestry, Northwest A&F UniversityYangling, China
| | - Ming Tang
- College of Forestry, Northwest A&F UniversityYangling, China
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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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Chen Z, Chen M, Jiang M. Hydrogen sulfide alleviates mercury toxicity by sequestering it in roots or regulating reactive oxygen species productions in rice seedlings. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2017; 111:179-192. [PMID: 27940269 DOI: 10.1016/j.plaphy.2016.11.027] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/09/2016] [Revised: 11/30/2016] [Accepted: 11/30/2016] [Indexed: 05/20/2023]
Abstract
Soil mercury (Hg) contamination is a major factor that affects agricultural yield and food security. Hydrogen sulfide (H2S) plays multifunctional roles in mediating a variety of responses to abiotic stresses. The effects of exogenous H2S on rice (Oryza sativa var 'Nipponbare') growth and metabolism under mercuric chloride (HgCl2) stress were investigated in this study. Either 100 or 200 μM sodium hydrosulfide (NaHS, a donor of H2S) pretreatment improved the transcription of bZIP60, a membrane-associated transcription factor, and then enhanced the expressions of non-protein thiols (NPT) and metallothioneins (OsMT-1) to sequester Hg in roots and thus inhibit Hg transport to shoots. Meanwhile, H2S promoted seedlings growth significantly even in the presences of Hg and superoxide dismutase (SOD, EC 1.15.1.1) or catalase (CAT, EC 1.11.1.6) inhibitors, diethyldithiocarbamate (DDC) or 3-amino-1,2,4-triazole (AT). H2S might act as an antioxidant to inhibit or scavenge reactive oxygen species (ROS) productions for maintaining the lower MDA and H2O2 levels, and thereby preventing oxidative damages. All these results indicated H2S effectively alleviated Hg toxicity by sequestering it in roots or by regulating ROS in seedlings and then thus significantly promoted rice growth.
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Affiliation(s)
- Zhen Chen
- Zhejiang Provincial Key Laboratory of Plant Evolutionary Ecology and Conservation, College of Life Sciences, Taizhou University, No.1139 Shifu Road, Taizhou 318000, People's Republic of China.
| | - Moshun Chen
- Zhejiang Provincial Key Laboratory of Plant Evolutionary Ecology and Conservation, College of Life Sciences, Taizhou University, No.1139 Shifu Road, Taizhou 318000, People's Republic of China
| | - Ming Jiang
- Zhejiang Provincial Key Laboratory of Plant Evolutionary Ecology and Conservation, College of Life Sciences, Taizhou University, No.1139 Shifu Road, Taizhou 318000, People's Republic of China
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Deng Z, Cao L. Fungal endophytes and their interactions with plants in phytoremediation: A review. CHEMOSPHERE 2017; 168:1100-1106. [PMID: 28029384 DOI: 10.1016/j.chemosphere.2016.10.097] [Citation(s) in RCA: 114] [Impact Index Per Article: 16.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/20/2016] [Revised: 09/15/2016] [Accepted: 10/24/2016] [Indexed: 05/29/2023]
Abstract
Endophytic microorganisms (including bacteria and fungi) are likely to interact closely with their hosts and are more protected from adverse changes in the environment. The microbiota contribute to plant growth, productivity, carbon sequestration, and phytoremediation. Elevated levels of contaminants (i.e. metals) are toxic to most plants, the plant's metabolism and growth were impaired and their potential for metal phytoextraction is highly restricted. Exploiting endophytic microorganisms to reduce metal toxicity to plants have been investigated to improve phytoremediation efficiencies. Fungi play an important role in organic and inorganic transformation, element cycling, rock and mineral transformations, bioweathering, mycogenic mineral formation, fungal-clay interactions, and metal-fungal interactions. Endophytic fungi also showed potentials to enhance phytoremediation. Compared to bacteria, most fungi exhibit a filamentous growth habit, which provides the ability to adopt both explorative or exploitative growth strategies and form linear organs of aggregated hyphae to protect fungal translocation. However, the information regarding the role of endophytic fungi in phytoremediation are incomplete, this review highlights the taxa, physiological properties, and interaction of endophytic fungi with plants in phytoremediation.
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Affiliation(s)
- Zujun Deng
- School of Life Sciences, Sun Yat-sen University, Guangzhou, 510275, China; School of Basic Courses, Guangdong Provincial Key Laboratory of Pharmaceutical Bioactive Substances, Guangdong Pharmaceutical University, Guangzhou, 510006, China
| | - Lixiang Cao
- School of Life Sciences, Sun Yat-sen University, Guangzhou, 510275, China.
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