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Gómez-Sagasti MT, Garbisu C, Urra J, Míguez F, Artetxe U, Hernández A, Vilela J, Alkorta I, Becerril JM. Mycorrhizal-Assisted Phytoremediation and Intercropping Strategies Improved the Health of Contaminated Soil in a Peri-Urban Area. FRONTIERS IN PLANT SCIENCE 2021; 12:693044. [PMID: 34276742 PMCID: PMC8283827 DOI: 10.3389/fpls.2021.693044] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/09/2021] [Accepted: 05/19/2021] [Indexed: 06/13/2023]
Abstract
Soils of abandoned and vacant lands in the periphery of cities are frequently subjected to illegal dumping and can undergo degradation processes such as depletion of organic matter and nutrients, reduced biodiversity, and the presence of contaminants, which may exert an intense abiotic stress on biological communities. Mycorrhizal-assisted phytoremediation and intercropping strategies are highly suitable options for remediation of these sites. A two-year field experiment was conducted at a peri-urban site contaminated with petroleum hydrocarbons and polychlorinated biphenyls, to assess the effects of plant growth (spontaneous plant species, Medicago sativa, and Populus × canadensis, alone vs. intercropped) and inoculation of a commercial arbuscular mycorrhizal and ectomycorrhizal inoculum. Contaminant degradation, plant performance, and biodiversity, as well as a variety of microbial indicators of soil health (microbial biomass, activity, and diversity parameters) were determined. The rhizosphere bacterial and fungal microbiomes were assessed by measuring the structural diversity and composition via amplicon sequencing. Establishment of spontaneous vegetation led to greater plant and soil microbial diversity. Intercropping enhanced the activity of soil enzymes involved in nutrient cycling. The mycorrhizal treatment was a key contributor to the establishment of intercropping with poplar and alfalfa. Inoculated and poplar-alfalfa intercropped soils had a higher microbial abundance than soils colonized by spontaneous vegetation. Our study provided evidence of the potential of mycorrhizal-assisted phytoremediation and intercropping strategies to improve soil health in degraded peri-urban areas.
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Affiliation(s)
| | - Carlos Garbisu
- Department of Conservation of Natural Resources, NEIKER, Basque Research and Technology Alliance (BRTA), Derio, Spain
| | - Julen Urra
- Department of Conservation of Natural Resources, NEIKER, Basque Research and Technology Alliance (BRTA), Derio, Spain
| | - Fátima Míguez
- Department of Plant Biology and Ecology, University of the Basque Country (UPV/EHU), Leioa, Spain
| | - Unai Artetxe
- Department of Plant Biology and Ecology, University of the Basque Country (UPV/EHU), Leioa, Spain
| | - Antonio Hernández
- Department of Plant Biology and Ecology, University of the Basque Country (UPV/EHU), Leioa, Spain
| | - Juan Vilela
- Centro de Estudios Ambientales, Vitoria-Gasteiz, Spain
| | - Itziar Alkorta
- Department of Biochemistry and Molecular Biology, University of the Basque Country (UPV/EHU), Leioa, Spain
| | - José M. Becerril
- Department of Plant Biology and Ecology, University of the Basque Country (UPV/EHU), Leioa, Spain
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Pilipović A, Zalesny RS, Orlović S, Drekić M, Pekeč S, Katanić M, Poljaković-Pajnik L. Growth and physiological responses of three poplar clones grown on soils artificially contaminated with heavy metals, diesel fuel, and herbicides. INTERNATIONAL JOURNAL OF PHYTOREMEDIATION 2019; 22:436-450. [PMID: 31590571 DOI: 10.1080/15226514.2019.1670616] [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] [Indexed: 06/10/2023]
Abstract
We tested the growth and physiological responses of three poplar clones [Populus deltoides Bartr. ex Marsh. 'Bora', 'PE 19/66'; Populus × euramericana (Dode) Guinier 'Pannonia'] grown for 3 years on soils artificially contaminated with heavy metals, diesel fuel, and herbicides at the Experimental Estate of the Institute of Lowland Forestry and Environment (ILFE), University of Novi Sad, Serbia. Within three field blocks, clonal whole-plots were divided into seven subplots containing a non-contaminated control and six artificially-contaminated soil treatments: (1) 10.6 kg Cd ha-1, (2) 247 kg Cu ha-1, (3) 183.3 kg Ni ha-1, (4) 6,667 L diesel fuel ha-1, (5) 236 g Oxyfluorfen ha-1, and (6) 1,320 g Pendimethalin ha-1. Significant clone × treatment interactions governed growth and physiology throughout the study (p < 0.05), and the influence of inorganics versus organics varied with tree age. Heavy metals had a more substantial influence on growth and physiology as the trees matured, while diesel and herbicide treatments were most pronounced during the first growing season (p < 0.0001). Clones 'Bora' and 'PE 19/66' exhibited greater biomass than 'Pannonia', with trees growing in the control soils exhibiting 13.8 and 19.6 times greater biomass than 'Pannonia', respectively.
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Affiliation(s)
- Andrej Pilipović
- Institute of Lowland Forestry and Environment, University of Novi Sad, Novi Sad, Serbia
| | - Ronald S Zalesny
- Institute for Applied Ecosystem Studies, USDA Forest Service, Northern Research Station, Rhinelander, WI, USA
| | - Saša Orlović
- Institute of Lowland Forestry and Environment, University of Novi Sad, Novi Sad, Serbia
| | - Milan Drekić
- Institute of Lowland Forestry and Environment, University of Novi Sad, Novi Sad, Serbia
| | - Saša Pekeč
- Institute of Lowland Forestry and Environment, University of Novi Sad, Novi Sad, Serbia
| | - Marina Katanić
- Institute of Lowland Forestry and Environment, University of Novi Sad, Novi Sad, Serbia
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Treu R, Falandysz J. Mycoremediation of hydrocarbons with basidiomycetes-a review. JOURNAL OF ENVIRONMENTAL SCIENCE AND HEALTH. PART. B, PESTICIDES, FOOD CONTAMINANTS, AND AGRICULTURAL WASTES 2017; 52:148-155. [PMID: 28121269 DOI: 10.1080/03601234.2017.1261536] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
The literature on hydrocarbon remediation with basidiomycetes was reviewed. Two ecological groups are considered for bioremediation, the saprotrophic basidiomycetes (white-rot and brown-rot fungi) and the ectomycorrhizal basidiomycetes. A remarkable capacity of basidiomycetes for in vitro degradation of simple and recalcitrant hydrocarbons, such as PAH, persistent organic pollutants (POPs), halogenated HC, aromatic HC and phenols, explosives and dyes was reported for many species. However, there is a need for more studies on the practical feasibility of field applications with basidiomycetes.
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Affiliation(s)
- Roland Treu
- a Faculty of Science and Technology , Athabasca University , Athabasca , Canada
| | - Jerzy Falandysz
- b Laboratory of Environmental Chemistry and Ecotoxicology , Gdańsk University , Gdańsk , Poland
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Álvarez-López V, Prieto-Fernández A, Janssen J, Herzig R, Vangronsveld J, Kidd PS. Inoculation methods using Rhodococcus erythropolis strain P30 affects bacterial assisted phytoextraction capacity of Nicotiana tabacum. INTERNATIONAL JOURNAL OF PHYTOREMEDIATION 2016; 18:406-15. [PMID: 26552496 DOI: 10.1080/15226514.2015.1109600] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
In this study different bacterial inoculation methods were tested for tobacco plants growing in a mine-soil contaminated with Pb, Zn, and Cd. The inoculation methods evaluated were: seed inoculation, soil inoculation, dual soil inoculation event, and seed+soil inoculation. Each inoculum was added at two bacterial densities (10(6) CFUs mL(-1) and 10(8) CFUs mL(-1)). The objectives were to evaluate whether or not the mode of inoculation or the number of applied microorganisms influences plant response. The most pronounced bacterial-induced effect was found for biomass production, and the soil inoculation treatment (using 10(6) CFUs mL(-1)) led to the highest increase in shoot dry weight yield (up to 45%). Bacterial-induced effects on shoot metal concentrations were less pronounced; although a positive effect was found on shoot Pb concentration when using 10(8) CFUs mL(-1) in the soil inoculation (29% increase) and in the seed+soil inoculation (34% increase). Also shoot Zn concentration increased by 24% after seed inoculation with 10(6) CFUs mL(-1). The best effects on the total metal yield were not correlated with an increasing number of inoculated bacteria. In fact the best results were found after a single soil inoculation using the lower cellular density of 10(6) CFUs mL(-1).
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Affiliation(s)
- V Álvarez-López
- a Instituto de Investigaciones Agrobiológicas de Galicia, CSIC , Santiago de Compostela , Spain
| | - A Prieto-Fernández
- a Instituto de Investigaciones Agrobiológicas de Galicia, CSIC , Santiago de Compostela , Spain
| | - J Janssen
- b Hasselt University, Centre for Environmental Sciences , Diepenbeek , Belgium
| | - R Herzig
- c Phytotech Foundation and AGB , Bern , Switzerland
| | - J Vangronsveld
- b Hasselt University, Centre for Environmental Sciences , Diepenbeek , Belgium
| | - P S Kidd
- a Instituto de Investigaciones Agrobiológicas de Galicia, CSIC , Santiago de Compostela , Spain
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Chiellini C, Iannelli R, Petroni G. Temporal characterization of bacterial communities in a phytoremediation pilot plant aimed at decontaminating polluted sediments dredged from Leghorn harbor, Italy. N Biotechnol 2013; 30:772-9. [DOI: 10.1016/j.nbt.2012.10.002] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2012] [Revised: 10/08/2012] [Accepted: 10/13/2012] [Indexed: 10/27/2022]
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Khan S, Afzal M, Iqbal S, Khan QM. Plant-bacteria partnerships for the remediation of hydrocarbon contaminated soils. CHEMOSPHERE 2013; 90:1317-32. [PMID: 23058201 DOI: 10.1016/j.chemosphere.2012.09.045] [Citation(s) in RCA: 57] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/05/2012] [Revised: 09/08/2012] [Accepted: 09/10/2012] [Indexed: 05/06/2023]
Abstract
Plant-bacteria partnerships have been extensively studied and applied to improve crop yield. In addition to their application in agriculture, a promising field to exploit plant-bacteria partnerships is the remediation of soil and water polluted with hydrocarbons. Application of effective plant-bacteria partnerships for the remediation of hydrocarbons depend mainly on the presence and metabolic activities of plant associated rhizo- and endophytic bacteria possessing specific genes required for the degradation of hydrocarbon pollutants. Plants and their associated bacteria interact with each other whereby plant supplies the bacteria with a special carbon source that stimulates the bacteria to degrade organic contaminants in the soil. In return, plant associated-bacteria can support their host plant to overcome contaminated-induced stress responses, and improve plant growth and development. In addition, plants further get benefits from their associated-bacteria possessing hydrocarbon-degradation potential, leading to enhanced hydrocarbon mineralization and lowering of both phytotoxicity and evapotranspiration of volatile hydrocarbons. A better understanding of plant-bacteria partnerships could be exploited to enhance the remediation of hydrocarbon contaminated soils in conjunction with sustainable production of non-food crops for biomass and biofuel production.
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Affiliation(s)
- Sumia Khan
- National Institute for Biotechnology and Genetic Engineering, Faisalabad, Pakistan
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Afzal M, Yousaf S, Reichenauer TG, Sessitsch A. The inoculation method affects colonization and performance of bacterial inoculant strains in the phytoremediation of soil contaminated with diesel oil. INTERNATIONAL JOURNAL OF PHYTOREMEDIATION 2012; 14:35-47. [PMID: 22567693 DOI: 10.1080/15226514.2011.552928] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/06/2023]
Abstract
Plants in combination with microorganisms can remediate soils, which are contaminated with organic pollutants such as petroleum hydrocarbons. Inoculation of plants with degrading bacteria is one approach to improve remediation processes, but is often not successful due to the competition with resident microorganisms. It is therefore of high importance to address the persistence and colonization behavior of inoculant strains. The objective of this study was to determine whether the inoculation method (seed imbibement and soil inoculation) influences bacterial colonization, plant growth promotion and hydrocarbon degradation. Italian ryegrass was grown in non-sterilized soil polluted with diesel and inoculated with different alkane-degrading strains Pantoea sp. ITSI10, Pantoea sp. BTRH79 and Pseudomonas sp. MixRI75 individually as well as in combination. Inoculation generally had a beneficial effect on plant biomass production and hydrocarbon degradation, however, strains inoculated in soil performed better than applied by seed imbibement. Performance correlated with the colonization efficiency of the inoculated strains. The highest hydrocarbon degradation was observed in the treatment, in which all three strains were inoculated in combination into soil. Our study revealed that besides the degradation potential and competitive ability of inoculant strains the inoculation method plays an important role in determining the success of microbial inoculation.
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Affiliation(s)
- Muhammad Afzal
- AIT Austrian Institute of Technology GmbH, Department of Health and Environment, Seibersdorf, Austria
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Agroforestry Research and Development in Canada: The Way Forward. AGROFORESTRY - THE FUTURE OF GLOBAL LAND USE 2012. [DOI: 10.1007/978-94-007-4676-3_15] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
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Marmiroli M, Pietrini F, Maestri E, Zacchini M, Marmiroli N, Massacci A. Growth, physiological and molecular traits in Salicaceae trees investigated for phytoremediation of heavy metals and organics. TREE PHYSIOLOGY 2011; 31:1319-1334. [PMID: 22052656 DOI: 10.1093/treephys/tpr090] [Citation(s) in RCA: 90] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
Worldwide, there are many large areas moderately contaminated with heavy metals and/or organics that have not been remediated due to the high cost and technical drawbacks of currently available technologies. Methods with a good potential for coping with these limitations are emerging from phytoremediation techniques, using, for example, specific amendments and/or plants selected from various candidates proven in several investigations to be reasonably efficient in extracting heavy metals from soil or water, or in co-metabolizing organics with bacteria flourishing or inoculated in their rhizospheres. Populus and Salix spp., two genera belonging to the Salicaceae family, include genotypes that can be considered among the candidates for this phytoremediation approach. This review shows the recent improvements in analytical tools based on the identification of useful genetic diversity associated with classical growth, physiological and biochemical traits, and the importance of plant genotype selection for enhancing phytoremediation efficiency. Particularly interesting are studies on the application of the phytoremediation of heavy metals and of chlorinated organics, in which microorganisms selected for their degradation capabilities were bioaugmented in the rhizosphere of Salicaceae planted at a high density for biomass and bioenergy production.
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Affiliation(s)
- Marta Marmiroli
- Department of Environmental Sciences, Section of Genetic and Environmental Biotechnology, Parco Area delle Scienze 11/A, Parma, Italy.
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Yadav R, Arora P, Kumar S, Chaudhury A. Perspectives for genetic engineering of poplars for enhanced phytoremediation abilities. ECOTOXICOLOGY (LONDON, ENGLAND) 2010; 19:1574-88. [PMID: 20848189 DOI: 10.1007/s10646-010-0543-7] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 09/01/2010] [Indexed: 05/06/2023]
Abstract
Phytoremediation potential has been widely accepted as highly stable and dynamic approach for reducing eco-toxic pollutants. Earlier reports endorse remediation abilities both in herbaceous plants as well as woody trees. Poplars are dominant trees to the ecosystem structure and functioning in riparian forests of North America Rivers and also to other part of the world. Understanding of the fact that how genetic variation in primary producer structures communities, affects species distribution, and alters ecosystem-level processes, attention was paid to investigate the perspectives of genetic modification in poplar. The present review article furnishes documented evidences for genetic engineering of Populus tree for enhanced phytoremediation abilities. The versatility of poplar as a consequence of its distinct traits, rapid growth rates, extensive root system, high perennial biomass production, and immense industrial value, bring it in the forefront of phytoremediation. Furthermore, remediative capabilities of Populus can be significantly increased by introducing cross-kingdom, non-resident genes encoding desirable traits. Available genome sequence database of Populus contribute to the determination of gene functions together with elucidating phytoremediation linked metabolic pathways. Adequate understanding of functional genomics in merger with physiology and genetics of poplar offers distinct advantage in identifying and upgrading phytoremediation potential of this model forest tree species for human welfare.
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Affiliation(s)
- Rakesh Yadav
- Department of Bio and Nano Technology, Guru Jambheshwar University of Science and Technology, Hisar, 125001 Haryana, India
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Flokstra BR, Aken BV, Schnoor JL. Microtox toxicity test: detoxification of TNT and RDX contaminated solutions by poplar tissue cultures. CHEMOSPHERE 2008; 71:1970-1976. [PMID: 18400248 DOI: 10.1016/j.chemosphere.2007.12.020] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/05/2007] [Revised: 12/13/2007] [Accepted: 12/21/2007] [Indexed: 05/26/2023]
Abstract
Poplar (Populus deltoidesxnigra DN34) tissue cultures removed 2,4,6-trinitrotoluene (TNT) from an aqueous solution in five days, reducing the toxicity of the solution from highly toxic Microtox EC value to that of the control. 1,3,5-Trinitro-1,3,5-triazacyclohexane (RDX) was taken up by the plant tissue cultures more slowly, but toxicity reduction of the solution was evident. The measurement of toxicity reduction of aqueous solutions containing TNT and RDX was performed using a novel methodology developed for use with the Microtox testing system. Radiolabeled TNT and RDX were used to confirm removal of explosives from hydroponic solutions containing plant tissue cultures and to verify that toxicity did not change in solutions where no plant cultures were present (positive controls). High Performance Liquid Chromatography (HPLC) and Liquid Scintillation Counter (LSC) measurements confirmed removal of TNT and RDX from solutions containing poplar plant tissue cultures and constancy of the plant-free controls. In addition, metabolites were identified in remediated solutions by HPLC, confirming the mechanism by which plants can remediate groundwater, surface water, and soil solutions.
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