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G Maisto - One of the best experts on this subject based on the ideXlab platform.
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orthonychiurus pseudostachianus collembola as a Toxicity test organism and selection of an ecotoxicological test battery to assess Soil quality
Applied Soil Ecology, 2012Co-Authors: Lucia Santorufo, Rita Carotenuto, Fabiano De Luca Picione, A. Rocco, G MaistoAbstract:Abstract This study aimed at developing a test using an autochthonous collembolan species ( Orthonychiurus pseudostachianus , Gisin 1956) to assess Soil Toxicity. To evaluate the feasibility of this species in Soil ecoToxicity assessment, it was considered whether the biological characteristics of the proposed species met the criteria reported in OECD guideline 232 for Toxicity testing using Folsomia candida . Next, the sensitivity to Soil metal contamination was evaluated performing the test on an artificial Soil spiked with Zn concentrations ranging from 4.79 to 479 μg g −1 d.w. To verify its suitability for Soil ecoToxicity assessment, the proposed test was performed on Soils collected at six sites in the urban area of Naples together with other ecotoxicological tests. The other aim of the study was to identify the lowest number of tests needed to obtain an optimized test battery for Soil ecoToxicity assessment. At the tested Zn concentrations, no mortality of O. pseudostachianus was observed whereas reproduction was halved at 37.4 μg Zn g −1 d.w. (95% confidence limits 29.3–44.8). In the field-collected Soils, reproduction of O. pseudostachianus proved a useful tool to assess Soil quality. A test battery composed only by Sinapis alba (germination index), O. pseudostachianus (reproduction), Eisenia veneta (body growth), and Heterocypris incongruens (body growth) tests were shown to be sufficiently informative to assess Soil Toxicity.
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orthonychiurus pseudostachianus collembola as a Toxicity test organism and selection of an ecotoxicological test battery to assess Soil quality
Applied Soil Ecology, 2012Co-Authors: Lucia Santorufo, Rita Carotenuto, Fabiano De Luca Picione, A. Rocco, G MaistoAbstract:Abstract This study aimed at developing a test using an autochthonous collembolan species ( Orthonychiurus pseudostachianus , Gisin 1956) to assess Soil Toxicity. To evaluate the feasibility of this species in Soil ecoToxicity assessment, it was considered whether the biological characteristics of the proposed species met the criteria reported in OECD guideline 232 for Toxicity testing using Folsomia candida . Next, the sensitivity to Soil metal contamination was evaluated performing the test on an artificial Soil spiked with Zn concentrations ranging from 4.79 to 479 μg g −1 d.w. To verify its suitability for Soil ecoToxicity assessment, the proposed test was performed on Soils collected at six sites in the urban area of Naples together with other ecotoxicological tests. The other aim of the study was to identify the lowest number of tests needed to obtain an optimized test battery for Soil ecoToxicity assessment. At the tested Zn concentrations, no mortality of O. pseudostachianus was observed whereas reproduction was halved at 37.4 μg Zn g −1 d.w. (95% confidence limits 29.3–44.8). In the field-collected Soils, reproduction of O. pseudostachianus proved a useful tool to assess Soil quality. A test battery composed only by Sinapis alba (germination index), O. pseudostachianus (reproduction), Eisenia veneta (body growth), and Heterocypris incongruens (body growth) tests were shown to be sufficiently informative to assess Soil Toxicity.
G. Renella - One of the best experts on this subject based on the ideXlab platform.
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phytomanagement reduces metal availability and microbial metal resistance in a metal contaminated Soil
Frontiers in Microbiology, 2020Co-Authors: Kai Xue, Laura Giagnoni, Jizhong Zhou, Joy D. Van Nostrand, Silke Neu, Ingo Muller, G. RenellaAbstract:Short rotation coppice (SRC) with metal tolerant plants may attenuate the pollution of excessive elements with potential Toxicity in Soils, while preserving Soil resources and functionality. Here, we investigated effects of 6 years phytomanagement with willow SRC on properties including heavy metal levels, Toxicity tested by BioTox, microbial biomass, enzyme activities, and functional gene abundances measured by GeoChip of Soils contaminated by As, Cd, Pb and Zn, as compared to the same Soils under non-managed mixed grassland representing no intervention treatment (Unt). Though metal total concentrations did not differ by SRC and Unt, SRC Soils had lower metal availability and Toxicity, higher organic carbon, microbial biomass, phosphatase, urease and protease activities, as compared to Unt Soils. Significantly reduced abundances of genes encoding resistances to various metals and antibiotics were observed in SRC, likely attributed to reduced metal selective pressure based on less heavy metal availability and Soil Toxicity. SRC also significantly reduced abundances of genes involved in nitrogen, phosphorus, and sulfur cycles, possibly due to the willow induced selection. Overall, while the SRC phytomanagement did not reduce the total heavy metal concentrations in Soils, it decreased the heavy metal availability and Soil Toxicity, which in turn led to less metal selective pressure on microbial communities. The SRC phytomanagement also reduced the abundances of nutrient cycling genes from microbial communities, possibly due to intense plant nutrient uptake that depleted Soil nitrogen and phosphorus availability, and thus site-specific practices should be considered to improve the Soil nutrient supply for phytomanagement plants.
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functional activity and functional gene diversity of a cu contaminated Soil remediated by aided phytostabilization using compost dolomitic limestone and a mixed tree stand
Environmental Pollution, 2018Co-Authors: Jizhong Zhou, Michel Mench, Laura Giagnoni, Joy D Van Nostrand, G. RenellaAbstract:Author(s): Xue, Kai; Zhou, Jizhong; Van Nostrand, Joy; Mench, Michel; Bes, Clemence; Giagnoni, Laura; Renella, Giancarlo | Abstract: Trace elements (TEs) availability, biochemical activity and functional gene diversity was studied in a Cu-contaminated Soil, revegetated for six years with a mixed stand of willow, black poplar, and false indigo-bush, and amended or not with compost plus dolomitic limestone (OMDL). The OMDL amendment significantly reduced Cu and As availability and Soil Toxicity, and increased the biochemical activity and microbial functional diversity assessed with the GEOCHIP technique, as compared to the unamended Soil (Unt). The OMDL Soil showed significantly higher abundance of 25 functional genes involved in decomposition organic compounds, and 11, 3 and 11 functional genes involved in the N, P and S biogeochemical cycles. Functional gene abundance was positively correlated with nutrient contents but negatively correlated with Cu availability and Soil Toxicity. The abundance of microbial functional genes encoding for resistance to various TEs also increased, possibly due to the microbial proliferation and lower Cu exposure in the presence of high total Soil Cu concentration. Genes encoding for antibiotic resistance due to the co-occurrence of TEs and antibiotic resistant genes on genetic mobile elements. Overall, phytomanagement confirmed its potential to restore the biological fertility and diversity of a severely Cu-contaminated Soil, but the increase of TEs and antibiotic resistant gene abundances deserve attention in future studies.
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Functional activity and functional gene diversity of a Cu-contaminated Soil remediated by aided phytostabilization using compost, dolomitic limestone and a mixed tree stand.
Environmental pollution (Barking Essex : 1987), 2018Co-Authors: Kai Xue, Michel Mench, Laura Giagnoni, Jizhong Zhou, Joy D. Van Nostrand, Clémence M. Bes, G. RenellaAbstract:Trace elements (TEs) availability, biochemical activity and functional gene diversity was studied in a Cu-contaminated Soil, revegetated for six years with a mixed stand of willow, black poplar, and false indigo-bush, and amended or not with compost plus dolomitic limestone (OMDL). The OMDL amendment significantly reduced Cu and As availability and Soil Toxicity, and increased the biochemical activity and microbial functional diversity assessed with the GEOCHIP technique, as compared to the unamended Soil (Unt). The OMDL Soil showed significantly higher abundance of 25 functional genes involved in decomposition organic compounds, and 11, 3 and 11 functional genes involved in the N, P and S biogeochemical cycles. Functional gene abundance was positively correlated with nutrient contents but negatively correlated with Cu availability and Soil Toxicity. The abundance of microbial functional genes encoding for resistance to various TEs also increased, possibly due to the microbial proliferation and lower Cu exposure in the presence of high total Soil Cu concentration. Genes encoding for antibiotic resistance due to the co-occurrence of TEs and antibiotic resistant genes on genetic mobile elements. Overall, phytomanagement confirmed its potential to restore the biological fertility and diversity of a severely Cu-contaminated Soil, but the increase of TEs and antibiotic resistant gene abundances deserve attention in future studies.
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Greenhouse gas emissions from a Cu-contaminated Soil remediated by in situ stabilization and phytomanaged by a mixed stand of poplar, willows, and false indigo-bush.
International journal of phytoremediation, 2017Co-Authors: Miloslav Šimek, Michel Mench, D. Elhottová, P. Nannipieri, Laura Giagnoni, G. RenellaAbstract:Phytomanagement of trace element-contaminated Soils can reduce Soil Toxicity and restore Soil ecological functions, including the Soil gas exchange with the atmosphere. We studied the emission rate...
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Greenhouse gas emissions from a Cu-contaminated Soil remediated by in situ stabilization and phytomanaged by a mixed stand of poplar, willows, and false indigo-bush
International Journal of Phytoremediation, 2017Co-Authors: D. Elhottová, Michel Mench, L. Giagnoni, P. Nannipieri, G. RenellaAbstract:Phytomanagement of trace element-contaminated Soils can reduce Soil Toxicity and restore Soil ecological functions, including the Soil gas exchange with the atmosphere. We studied the emission rate of the greenhouse gases (GHGs) CO2, CH4, and N2O; the potential CH4 oxidation; denitrification enzyme activity (DEA), and glucose mineralization of a Cu-contaminated Soil amended with dolomitic limestone and compost, alone or in combination, after a 2-year phytomanagement with a mixed stand of Populus nigra, Salix viminalis, S. caprea, and Amorpha fruticosa. Soil microbial biomass and microbial community composition after analysis of the phospholipid fatty acids (PLFA) profile were determined. Phytomanagement significantly reduced Cu availability and Soil Toxicity, increased Soil microbial biomass and glucose mineralization capacity, changed the composition of Soil microbial communities, and increased the CO2 and N2O emission rates and DEA. Despite such increases, microbial communities were evolving toward less GHG emission per unit of microbial biomass than in untreated Soils. Overall, the aided phytostabilization option would allow methanotrophic populations to establish in the remediated Soils due to decreased Soil Toxicity and increased nutrient availability.
Michel Mench - One of the best experts on this subject based on the ideXlab platform.
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functional activity and functional gene diversity of a cu contaminated Soil remediated by aided phytostabilization using compost dolomitic limestone and a mixed tree stand
Environmental Pollution, 2018Co-Authors: Jizhong Zhou, Michel Mench, Laura Giagnoni, Joy D Van Nostrand, G. RenellaAbstract:Author(s): Xue, Kai; Zhou, Jizhong; Van Nostrand, Joy; Mench, Michel; Bes, Clemence; Giagnoni, Laura; Renella, Giancarlo | Abstract: Trace elements (TEs) availability, biochemical activity and functional gene diversity was studied in a Cu-contaminated Soil, revegetated for six years with a mixed stand of willow, black poplar, and false indigo-bush, and amended or not with compost plus dolomitic limestone (OMDL). The OMDL amendment significantly reduced Cu and As availability and Soil Toxicity, and increased the biochemical activity and microbial functional diversity assessed with the GEOCHIP technique, as compared to the unamended Soil (Unt). The OMDL Soil showed significantly higher abundance of 25 functional genes involved in decomposition organic compounds, and 11, 3 and 11 functional genes involved in the N, P and S biogeochemical cycles. Functional gene abundance was positively correlated with nutrient contents but negatively correlated with Cu availability and Soil Toxicity. The abundance of microbial functional genes encoding for resistance to various TEs also increased, possibly due to the microbial proliferation and lower Cu exposure in the presence of high total Soil Cu concentration. Genes encoding for antibiotic resistance due to the co-occurrence of TEs and antibiotic resistant genes on genetic mobile elements. Overall, phytomanagement confirmed its potential to restore the biological fertility and diversity of a severely Cu-contaminated Soil, but the increase of TEs and antibiotic resistant gene abundances deserve attention in future studies.
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Functional activity and functional gene diversity of a Cu-contaminated Soil remediated by aided phytostabilization using compost, dolomitic limestone and a mixed tree stand.
Environmental pollution (Barking Essex : 1987), 2018Co-Authors: Kai Xue, Michel Mench, Laura Giagnoni, Jizhong Zhou, Joy D. Van Nostrand, Clémence M. Bes, G. RenellaAbstract:Trace elements (TEs) availability, biochemical activity and functional gene diversity was studied in a Cu-contaminated Soil, revegetated for six years with a mixed stand of willow, black poplar, and false indigo-bush, and amended or not with compost plus dolomitic limestone (OMDL). The OMDL amendment significantly reduced Cu and As availability and Soil Toxicity, and increased the biochemical activity and microbial functional diversity assessed with the GEOCHIP technique, as compared to the unamended Soil (Unt). The OMDL Soil showed significantly higher abundance of 25 functional genes involved in decomposition organic compounds, and 11, 3 and 11 functional genes involved in the N, P and S biogeochemical cycles. Functional gene abundance was positively correlated with nutrient contents but negatively correlated with Cu availability and Soil Toxicity. The abundance of microbial functional genes encoding for resistance to various TEs also increased, possibly due to the microbial proliferation and lower Cu exposure in the presence of high total Soil Cu concentration. Genes encoding for antibiotic resistance due to the co-occurrence of TEs and antibiotic resistant genes on genetic mobile elements. Overall, phytomanagement confirmed its potential to restore the biological fertility and diversity of a severely Cu-contaminated Soil, but the increase of TEs and antibiotic resistant gene abundances deserve attention in future studies.
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Greenhouse gas emissions from a Cu-contaminated Soil remediated by in situ stabilization and phytomanaged by a mixed stand of poplar, willows, and false indigo-bush.
International journal of phytoremediation, 2017Co-Authors: Miloslav Šimek, Michel Mench, D. Elhottová, P. Nannipieri, Laura Giagnoni, G. RenellaAbstract:Phytomanagement of trace element-contaminated Soils can reduce Soil Toxicity and restore Soil ecological functions, including the Soil gas exchange with the atmosphere. We studied the emission rate...
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Greenhouse gas emissions from a Cu-contaminated Soil remediated by in situ stabilization and phytomanaged by a mixed stand of poplar, willows, and false indigo-bush
International Journal of Phytoremediation, 2017Co-Authors: D. Elhottová, Michel Mench, L. Giagnoni, P. Nannipieri, G. RenellaAbstract:Phytomanagement of trace element-contaminated Soils can reduce Soil Toxicity and restore Soil ecological functions, including the Soil gas exchange with the atmosphere. We studied the emission rate of the greenhouse gases (GHGs) CO2, CH4, and N2O; the potential CH4 oxidation; denitrification enzyme activity (DEA), and glucose mineralization of a Cu-contaminated Soil amended with dolomitic limestone and compost, alone or in combination, after a 2-year phytomanagement with a mixed stand of Populus nigra, Salix viminalis, S. caprea, and Amorpha fruticosa. Soil microbial biomass and microbial community composition after analysis of the phospholipid fatty acids (PLFA) profile were determined. Phytomanagement significantly reduced Cu availability and Soil Toxicity, increased Soil microbial biomass and glucose mineralization capacity, changed the composition of Soil microbial communities, and increased the CO2 and N2O emission rates and DEA. Despite such increases, microbial communities were evolving toward less GHG emission per unit of microbial biomass than in untreated Soils. Overall, the aided phytostabilization option would allow methanotrophic populations to establish in the remediated Soils due to decreased Soil Toxicity and increased nutrient availability.
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A direct solid-phase assay specific for heavy-metal Toxicity. II. Assessment of heavy-metal immobilization in Soils and bioavailability to plants
The Journal of Soil Science, 1996Co-Authors: Ali Boularbah, Gabriel Bitton, Jean-louis Morel, Michel MenchAbstract:We have used the solid-phase MetPLA TE, an enzyme assay that is specific for heavy-metal Toxicity, to investigate metal Toxicity of Soils that have been amended with urban wastewater sludges or contaminated with dry deposition from metal-plating industries. We have shown that Soil Toxicity, using MetPLA TE, ranged from 21 to 72.5% inhibition of enzyme activity. Evin Soil, which displayed the highest Toxicity, also had the highest concentrations of Pb and Zn. Metal uptake studies with ryegrass grown on Evin Soil, showed Zn, Cd, and Pb accumulation in the plant that exceeds the standard levels reported for grasses Solid-phase MetPLA TE was also used as a tool to study the reduction of heavy-metal Toxicity following Soil amendments to immobilize metals in Soil and thus reduce their Toxicity. It was found that the addition of 1% hydrated manganese oxide significantly reduced dissolved metals in Soil, their accumulation by ryegrass, and Soil Toxicity as shown by MetPLA TE.
Tobias Frische - One of the best experts on this subject based on the ideXlab platform.
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ecotoxicological evaluation of in situ bioremediation of Soils contaminated by the explosive 2 4 6 trinitrotoluene tnt
Environmental Pollution, 2003Co-Authors: Tobias FrischeAbstract:Abstract To evaluate the environmental relevance of in situ bioremediation of contaminated Soils, effective and reliable monitoring approaches are of special importance. The presented study was conducted as part of a research project investigating in situ bioremediation of topSoils contaminated by the explosive 2,4,6-trinitrotoluene (TNT). Changes in Soil Toxicity within different experimental fields at a former ordnance factory were evaluated using a battery of five bioassays (plant growth, Collembola reproduction, Soil respiration, luminescent bacteria acute Toxicity and mutagenicity test) in combination to chemical contaminant analysis. Resulting data reveal clear differences in sensitivities between methods with the luminescent bacteria assay performed with Soil leachates as most sensitive Toxicity indicator. Complete test battery results are presented in so-called Soil Toxicity profiles to visualise and facilitate the interpretation of data. Both biological and chemical monitoring results indicate a reduction of Soil Toxicity within 17 months of remediation.
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Screening for Soil Toxicity and mutagenicity using luminescent bacteria--a case study of the explosive 2,4,6-trinitrotoluene (TNT).
Ecotoxicology and environmental safety, 2002Co-Authors: Tobias FrischeAbstract:The presented study explored the suitability of aquatic bioassays based on the marine luminescent bacterium Vibrio fischeri as screening indicators for Soil Toxicity and mutagenicity. The study consists of two parts: (i) determination of the bacterial Toxicity and mutagenicity of the single substance 2,4,6-trinitrotoluene (TNT) and its primary reduced metabolites using three different luminescent bacteria assays and (ii) determination of the water-extractable Toxicity and mutagenicity of Soil samples taken at a former production plant for TNT showing complex contamination (TNT, metabolites of TNT, PAHs, and heavy metals). Resulting data indicate TNT to be predominantly responsible for the observed biological effects of Soil leachates. A strategy for Soil Toxicity screening based on luminescent bacteria is proposed which may especially be applicable for the case of bioremediation of TNT-contaminated Soils. Potentials and restrictions of this approach to Soil Toxicity assessment are discussed.
Lucia Santorufo - One of the best experts on this subject based on the ideXlab platform.
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orthonychiurus pseudostachianus collembola as a Toxicity test organism and selection of an ecotoxicological test battery to assess Soil quality
Applied Soil Ecology, 2012Co-Authors: Lucia Santorufo, Rita Carotenuto, Fabiano De Luca Picione, A. Rocco, G MaistoAbstract:Abstract This study aimed at developing a test using an autochthonous collembolan species ( Orthonychiurus pseudostachianus , Gisin 1956) to assess Soil Toxicity. To evaluate the feasibility of this species in Soil ecoToxicity assessment, it was considered whether the biological characteristics of the proposed species met the criteria reported in OECD guideline 232 for Toxicity testing using Folsomia candida . Next, the sensitivity to Soil metal contamination was evaluated performing the test on an artificial Soil spiked with Zn concentrations ranging from 4.79 to 479 μg g −1 d.w. To verify its suitability for Soil ecoToxicity assessment, the proposed test was performed on Soils collected at six sites in the urban area of Naples together with other ecotoxicological tests. The other aim of the study was to identify the lowest number of tests needed to obtain an optimized test battery for Soil ecoToxicity assessment. At the tested Zn concentrations, no mortality of O. pseudostachianus was observed whereas reproduction was halved at 37.4 μg Zn g −1 d.w. (95% confidence limits 29.3–44.8). In the field-collected Soils, reproduction of O. pseudostachianus proved a useful tool to assess Soil quality. A test battery composed only by Sinapis alba (germination index), O. pseudostachianus (reproduction), Eisenia veneta (body growth), and Heterocypris incongruens (body growth) tests were shown to be sufficiently informative to assess Soil Toxicity.
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orthonychiurus pseudostachianus collembola as a Toxicity test organism and selection of an ecotoxicological test battery to assess Soil quality
Applied Soil Ecology, 2012Co-Authors: Lucia Santorufo, Rita Carotenuto, Fabiano De Luca Picione, A. Rocco, G MaistoAbstract:Abstract This study aimed at developing a test using an autochthonous collembolan species ( Orthonychiurus pseudostachianus , Gisin 1956) to assess Soil Toxicity. To evaluate the feasibility of this species in Soil ecoToxicity assessment, it was considered whether the biological characteristics of the proposed species met the criteria reported in OECD guideline 232 for Toxicity testing using Folsomia candida . Next, the sensitivity to Soil metal contamination was evaluated performing the test on an artificial Soil spiked with Zn concentrations ranging from 4.79 to 479 μg g −1 d.w. To verify its suitability for Soil ecoToxicity assessment, the proposed test was performed on Soils collected at six sites in the urban area of Naples together with other ecotoxicological tests. The other aim of the study was to identify the lowest number of tests needed to obtain an optimized test battery for Soil ecoToxicity assessment. At the tested Zn concentrations, no mortality of O. pseudostachianus was observed whereas reproduction was halved at 37.4 μg Zn g −1 d.w. (95% confidence limits 29.3–44.8). In the field-collected Soils, reproduction of O. pseudostachianus proved a useful tool to assess Soil quality. A test battery composed only by Sinapis alba (germination index), O. pseudostachianus (reproduction), Eisenia veneta (body growth), and Heterocypris incongruens (body growth) tests were shown to be sufficiently informative to assess Soil Toxicity.