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Silva I, Alves M, Malheiro C, Silva ARR, Loureiro S, Henriques I, González-Alcaraz MN. Structural and Functional Shifts in the Microbial Community of a Heavy Metal-Contaminated Soil Exposed to Short-Term Changes in Air Temperature, Soil Moisture and UV Radiation. Genes (Basel) 2024; 15:107. [PMID: 38254996 PMCID: PMC10815596 DOI: 10.3390/genes15010107] [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: 12/20/2023] [Revised: 01/11/2024] [Accepted: 01/14/2024] [Indexed: 01/24/2024] Open
Abstract
The interplay between metal contamination and climate change may exacerbate the negative impact on the soil microbiome and, consequently, on soil health and ecosystem services. We assessed the response of the microbial community of a heavy metal-contaminated soil when exposed to short-term (48 h) variations in air temperature, soil humidity or ultraviolet (UV) radiation in the absence and presence of Enchytraeus crypticus (soil invertebrate). Each of the climate scenarios simulated significantly altered at least one of the microbial parameters measured. Irrespective of the presence or absence of invertebrates, the effects were particularly marked upon exposure to increased air temperature and alterations in soil moisture levels (drought and flood scenarios). The observed effects can be partly explained by significant alterations in soil properties such as pH, dissolved organic carbon, and water-extractable heavy metals, which were observed for all scenarios in comparison to standard conditions. The occurrence of invertebrates mitigated some of the impacts observed on the soil microbial community, particularly in bacterial abundance, richness, diversity, and metabolic activity. Our findings emphasize the importance of considering the interplay between climate change, anthropogenic pressures, and soil biotic components to assess the impact of climate change on terrestrial ecosystems and to develop and implement effective management strategies.
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Affiliation(s)
- Isabel Silva
- CEF (Center for Functional Ecology), Associate Laboratory TERRA, Department of Life Sciences, Faculty of Sciences and Technology, University of Coimbra, 3000-456 Coimbra, Portugal;
- CESAM (Centre for Marine and Environmental Studies), Department of Biology, University of Aveiro, 3810-193 Aveiro, Portugal; (C.M.); (A.R.R.S.); (S.L.)
| | - Marta Alves
- CBQF (Center for Biotechnology and Fine Chemistry), School of Biotechnology, Portuguese Catholic University, 4169-005 Porto, Portugal;
| | - Catarina Malheiro
- CESAM (Centre for Marine and Environmental Studies), Department of Biology, University of Aveiro, 3810-193 Aveiro, Portugal; (C.M.); (A.R.R.S.); (S.L.)
| | - Ana Rita R. Silva
- CESAM (Centre for Marine and Environmental Studies), Department of Biology, University of Aveiro, 3810-193 Aveiro, Portugal; (C.M.); (A.R.R.S.); (S.L.)
| | - Susana Loureiro
- CESAM (Centre for Marine and Environmental Studies), Department of Biology, University of Aveiro, 3810-193 Aveiro, Portugal; (C.M.); (A.R.R.S.); (S.L.)
| | - Isabel Henriques
- CEF (Center for Functional Ecology), Associate Laboratory TERRA, Department of Life Sciences, Faculty of Sciences and Technology, University of Coimbra, 3000-456 Coimbra, Portugal;
| | - M. Nazaret González-Alcaraz
- CESAM (Centre for Marine and Environmental Studies), Department of Biology, University of Aveiro, 3810-193 Aveiro, Portugal; (C.M.); (A.R.R.S.); (S.L.)
- Department of Agricultural Engineering of the E.T.S.I.A., Technical University of Cartagena, 30203 Cartagena, Spain
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2
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Tang S, Rao Y, Huang S, Xu Y, Zeng K, Liang X, Ling Q, Liu K, Ma J, Yu F, Li Y. Impact of environmental factors on the ammonia-oxidizing and denitrifying microbial community and functional genes along soil profiles from different ecologically degraded areas in the Siding mine. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2023; 326:116641. [PMID: 36343494 DOI: 10.1016/j.jenvman.2022.116641] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/26/2022] [Revised: 10/08/2022] [Accepted: 10/25/2022] [Indexed: 06/16/2023]
Abstract
Ammonia oxidizers (ammonia-oxidizing bacteria (AOB amoA) and ammonia-oxidizing archaea (AOA amoA)) and denitrifiers (encoded by nirS, nirK and nosZ) in the soil nitrogen cycle exist in a variety of natural ecosystems. However, little is known about the contribution of these five N-related functional genes to nitrification and denitrification in the soil profile in severely ecologically degraded areas. Therefore, in the present study, the abundance, diversity and community composition of AOA, AOB, nirS, nirK and nosZ were investigated in the soil profiles of different ecologically degraded areas in the Siding mine. The results indicated that, at the phylum level, the dominant archaea were Crenarchaeota and Thaumarchaeota and the dominant bacteria were Proteobacteria. Heavy metal contents had a great impact on AOA amoA, nirS and nirK gene abundances. AOA amoA contributed more during the ammonia oxidation process and was better adapted for survival in heavy metal-contaminated environments. In addition to heavy metals, the soil organic matter (SOM) content and C/N ratio had strong effects on the AOA and AOB community diversity and structure. In addition, variations in the net ammonification and nitrification rates were proportional to AOA amoA abundance along the soil profile. The soil C/N ratio, soil available phosphorus content and soil moisture influenced the denitrification process. Both soil available phosphorus and moisture were more strongly related to nosZ than to nirS and nirK. In addition, nosZ presented a higher correlation with the nosZ/(nirS + nirK) ratio. Moreover, nosZ/(nirS + nirK) was the key functional gene group that drove the major processes for NH4+-N and NO3--N transformation. This study demonstrated the role and importance of soil property impacts on N-related microbes in the soil profile and provided a better understanding of the role and importance of N-related functional genes and their contribution to soil nitrification and denitrification processes in highly degraded areas in the Siding mine.
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Affiliation(s)
- Shuting Tang
- Key Laboratory of Ecology of Rare and Endangered Species and Environmental Protection (Guangxi Normal University), Ministry of Education, China; College of Environment and Resources, Guangxi Normal University, 541004, Guilin, China
| | - Yin Rao
- College of Environment and Resources, Guangxi Normal University, 541004, Guilin, China
| | - Shulian Huang
- College of Environment and Resources, Guangxi Normal University, 541004, Guilin, China
| | - Yue Xu
- College of Environment and Resources, Guangxi Normal University, 541004, Guilin, China
| | - Kaiyue Zeng
- College of Environment and Resources, Guangxi Normal University, 541004, Guilin, China
| | - Xin Liang
- Key Laboratory of Ecology of Rare and Endangered Species and Environmental Protection (Guangxi Normal University), Ministry of Education, China; College of Environment and Resources, Guangxi Normal University, 541004, Guilin, China
| | - Qiujie Ling
- College of Environment and Resources, Guangxi Normal University, 541004, Guilin, China
| | - Kehui Liu
- Key Laboratory of Ecology of Rare and Endangered Species and Environmental Protection (Guangxi Normal University), Ministry of Education, China; Guangxi Key Laboratory of Landscape Resources Conservation and Sustainable Utilization in Lijiang River Basin, Guangxi Normal University, 541004, Guilin, China; College of Life Science, Guangxi Normal University, 541004, Guilin, China
| | - Jiangming Ma
- Key Laboratory of Ecology of Rare and Endangered Species and Environmental Protection (Guangxi Normal University), Ministry of Education, China; Guangxi Key Laboratory of Landscape Resources Conservation and Sustainable Utilization in Lijiang River Basin, Guangxi Normal University, 541004, Guilin, China; College of Life Science, Guangxi Normal University, 541004, Guilin, China
| | - Fangming Yu
- Key Laboratory of Ecology of Rare and Endangered Species and Environmental Protection (Guangxi Normal University), Ministry of Education, China; Guangxi Key Laboratory of Landscape Resources Conservation and Sustainable Utilization in Lijiang River Basin, Guangxi Normal University, 541004, Guilin, China; College of Environment and Resources, Guangxi Normal University, 541004, Guilin, China.
| | - Yi Li
- Key Laboratory of Ecology of Rare and Endangered Species and Environmental Protection (Guangxi Normal University), Ministry of Education, China; Guangxi Key Laboratory of Landscape Resources Conservation and Sustainable Utilization in Lijiang River Basin, Guangxi Normal University, 541004, Guilin, China; College of Environment and Resources, Guangxi Normal University, 541004, Guilin, China.
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3
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Hennig TB, Alves PRL, Bandeira FO, da Costa Cabrera L, Dugatto JS, da Silva MAT, Baretta D. Role of climatic factors in the toxicity of fipronil toward earthworms in two tropical soils: effects of increased temperature and reduced soil moisture content. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2022; 29:56370-56378. [PMID: 35332455 DOI: 10.1007/s11356-022-19813-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/18/2021] [Accepted: 03/15/2022] [Indexed: 06/14/2023]
Abstract
The aim of this study was to assess the effect of temperature on the toxicity of fipronil toward earthworms (Eisenia andrei) in two Brazilian soils (Entisol and Oxisol) with contrasting textures. In the case of Entisol, the influence of soil moisture content on toxicity was also investigated. Earthworms were exposed for 56 days to soils spiked with increasing concentrations of fipronil (8.95, 19.48, 38.22, 155.61, and 237.81 mg kg-1 for Entisol; 12.99, 27.94, 48.42, 204.67, and 374.29 mg kg-1 for Oxisol) under scenarios with different combinations of temperature (20, 25 and 27 °C) and soil moisture content (60 and 30% of water holding capacity (WHC) for Entisol and 60% WHC for Oxisol). The number of juveniles produced was taken as the endpoint, and a risk assessment was performed based on the hazard quotient (HQ). In Entisol, at 60% WHC the fipronil toxicity decreased at 27 °C compared with the other temperatures tested (EC50 = 52.58, 48.48, and 110 mg kg-1 for 20, 25, and 27 °C, respectively). In the case of Oxisol at 60% WHC, the fipronil toxicity increased at 27 °C compared with other temperatures (EC50 = 277.57, 312.87, and 39.89 mg kg-1 at 20, 25, and 27 °C, respectively). An increase in fipronil toxicity was also observed with a decrease in soil moisture content in Entisol at 27 °C (EC50 = 27.95 and 110 mg kg-1 for 30% and 60% WHC, respectively). The risk of fipronil was only significant at 27 °C in Entisol and Oxisol with water contents of 30% and 60% WHC, respectively, revealing that higher temperatures are able to increase the risk of fipronil toxicity toward earthworms depending on soil type and soil moisture content. The results reported herein show that soil properties associated with climatic shifts could enhance the ecotoxicological effects and risk of fipronil for earthworms, depending on the type of soil.
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Affiliation(s)
- Thuanne Braúlio Hennig
- Dep. of Soil Science, Santa Catarina State University, Av. Luis de Camões, 2090, , Lages, SC, 88520000, Brazil
| | - Paulo Roger Lopes Alves
- Federal University of Fronteira Sul, Av. Fernando Machado 108 E, Chapecó, SC, 89802112, Brazil.
| | - Felipe Ogliari Bandeira
- Dep. of Soil Science, Santa Catarina State University, Av. Luis de Camões, 2090, , Lages, SC, 88520000, Brazil
| | - Liziara da Costa Cabrera
- Federal University of Fronteira Sul, Av. Jacob Reinaldo Haupenthal, Cerro Largo, RS, 1580, 97900000, Brazil
| | - Jonas Simon Dugatto
- Federal University of Fronteira Sul, Av. Jacob Reinaldo Haupenthal, Cerro Largo, RS, 1580, 97900000, Brazil
| | | | - Dilmar Baretta
- Dep. of Soil Science, Santa Catarina State University, Av. Luis de Camões, 2090, , Lages, SC, 88520000, Brazil
- Centro de Educação Superior Do Oeste, Santa Catarina State University, Beloni Trombeta Zanin, 680-E, Chapecó, SC, 89815-630, Brazil
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4
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Silva ARR, Malheiro C, Loureiro S, González-Alcaraz MN. Toxicity of historically metal(loid)-contaminated soils to Folsomia candida under the influence of climate change alterations. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2022; 305:119256. [PMID: 35395349 DOI: 10.1016/j.envpol.2022.119256] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/12/2021] [Revised: 03/25/2022] [Accepted: 04/01/2022] [Indexed: 06/14/2023]
Abstract
Global warming is drastically altering the climate conditions of our planet. Soils will be among the most affected components of terrestrial ecosystems, especially in contaminated areas. In this study we investigated if changes in climate conditions (air temperature and soil moisture) affect the toxicity of historically metal(loid)-contaminated soils to the invertebrate Folsomia candida, followed by an assessment of its recovery capacity. Ecotoxicity tests (assessing survival, reproduction) were performed in field soils affected by metal(loid)s under different climate scenarios, simulated by individually changing air temperature or soil moisture conditions. The scenarios tested were: standard conditions (20°C + 50% soil water holding capacity-WHC); increased air temperature (daily fluctuation of 20-30°C + 50% WHC); soil drought (20°C + 25% WHC); soil flood (20°C + 75% WHC). Recovery potential was assessed under standard conditions in clean soil. Increased temperature was the major climate condition negatively affecting collembolans performance (decreased survival and reproduction), regardless of metal(loid) contamination. Drought and flood conditions presented less pronounced effects. When it was possible to move to the recovery phase (enough juveniles in exposure phase), F. candida was apparently able to recover from the exposure to metal(loid) contamination and/or climate alterations. The present study showed that forecasted climate alterations in areas already affected by contamination should be considered to improve environmental risk assessment.
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Affiliation(s)
- Ana Rita R Silva
- CESAM-Centre for Environmental and Marine Studies & Department of Biology, University of Aveiro, Portugal.
| | - Catarina Malheiro
- CESAM-Centre for Environmental and Marine Studies & Department of Biology, University of Aveiro, Portugal
| | - Susana Loureiro
- CESAM-Centre for Environmental and Marine Studies & Department of Biology, University of Aveiro, Portugal
| | - M Nazaret González-Alcaraz
- CESAM-Centre for Environmental and Marine Studies & Department of Biology, University of Aveiro, Portugal; Department of Agricultural Engineering of the E.T.S.I.A. & Soil Ecology and Biotechnology Unit of the Institute of Plant Biotechnology, Technical University of Cartagena, 30203 Cartagena, Spain
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5
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Mendes LA, Avellan A, Cruz NC, Palito C, Römkens PFAM, Amorim MJB, Tarelho LAC, Rodrigues SM. Biomass ash formulations as sustainable improvers for mining soil health recovery: Linking soil properties and ecotoxicity. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2021; 291:118165. [PMID: 34536642 DOI: 10.1016/j.envpol.2021.118165] [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: 01/21/2021] [Revised: 09/08/2021] [Accepted: 09/10/2021] [Indexed: 06/13/2023]
Abstract
There is a growing need to recover degraded soils to restore their essential ecosystem services and limit damages of anthropic activities onto these systems. Safe and sustainable solutions for long-term recovery must be designed, ideally by recycling existing resources. Using ash from combustion of residual forest biomass at the pulp and paper industry is an interesting and sustainable strategy to recover mining soils. However, formulations must be found to limit the potential toxicity associated with soluble salts and chloride that ash contains. Here, we assessed the effectiveness of three field ash-based amendments for the recovery of three highly acidic soils from Portuguese abandoned mines. Three amendments were tested: an un-stabilized mixture of ash and biological sludge, granulated ash, and granulated ash mixed with composted sludge. One year after application in open field plots (in the scope of LIFE No_Waste project), soil health restoration was evaluated through (i) soil physico-chemical characterization and (ii) soil habitat functions though standardized ecotoxicological tests. This study highlights that stabilized materials provided nutrients, organic matter and alkalinity that corrected soil pH and decreased metal bioavailability, while controlling the release of soluble salts and chloride from ash. This soil improvement correlated with improved soil model organisms' reproduction and survival. For similar amendment, the native soil properties studied (as soil native electrical conductivity) affected the level of organism response. This work provides evidence that ash stabilization, formulation and supplementation with organic matter could be sustainable strategies to restore highly degraded mining soils and to recover their ecological functions. It further highlights the importance of analyzing combined effects on soil physico-chemical properties and ecological function recovery to assess restoration strategy efficiencies in complex multi-stressor environments.
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Affiliation(s)
- Luís A Mendes
- University of Aveiro, CESAM and Department of Chemistry, 3810-193, Aveiro, Portugal
| | - Astrid Avellan
- University of Aveiro, CESAM and Department of Chemistry, 3810-193, Aveiro, Portugal
| | - Nuno C Cruz
- University of Aveiro, CESAM and Department of Chemistry, 3810-193, Aveiro, Portugal
| | - Cátia Palito
- University of Aveiro, CESAM and Department of Chemistry, 3810-193, Aveiro, Portugal
| | - Paul F A M Römkens
- Wageningen Environmental Research, Wageningen University and Research, PO Box 47, 6700, AA Wageningen, the Netherlands
| | - Mónica J B Amorim
- University of Aveiro, CESAM and Department of Biology, 3810-193, Aveiro, Portugal
| | - Luís A C Tarelho
- University of Aveiro, CESAM and Department of Environment and Planning, 3810-193, Aveiro, Portugal
| | - Sónia M Rodrigues
- University of Aveiro, CESAM and Department of Environment and Planning, 3810-193, Aveiro, Portugal.
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6
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Braúlio Hennig T, Ogliari Bandeira F, Dalpasquale AJ, Cardoso EJBN, Baretta D, Lopes Alves PR. Toxicity of imidacloprid to collembolans in two tropical soils under different soil moisture. JOURNAL OF ENVIRONMENTAL QUALITY 2020; 49:1491-1501. [PMID: 33459410 DOI: 10.1002/jeq2.20143] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/30/2020] [Revised: 07/28/2020] [Accepted: 08/15/2020] [Indexed: 06/12/2023]
Abstract
Shifts in precipitation regimes due to the predicted climate changes can alter the water content in tropical soils and, consequently, may influence the toxicity of pesticides to soil fauna. This study assessed the influence of soil moisture content on the toxicity of the insecticide imidacloprid to the collembolans Folsomia candida in two tropical soils and evaluated the risk of this active ingredient for this species in the soils tested through the toxicity exposure ratio approach. Acute and chronic toxicity tests with F. candida were performed using an Entisol and an Oxisol. The soils were spiked with increasing imidacloprid concentrations while simulating normal water availability (60% of the water holding capacity [WHC]) and water restriction (30 or 45% WHC) for the tests. In the Oxisol, the reduction of soil moisture content significantly increased the toxic effects of imidacloprid on F. candida's survival (LC50 at 45% WHC = 23.8 vs. LC50 at 60% WHC >64 mg kg-1) and reproduction (effective concentration causing reductions in species reproduction of 50% [EC50] at 45% WHC = 0.32 vs. EC50 at 60% WHC = 2.83 mg kg-1), but in the Entisol no clear influence of the soil moisture on the toxicity of imidacloprid for collembolans was found. A significant risk for F. candida was observed in the Oxisol only when in water restriction, whereas in the Entisol it occurred regardless of soil moisture, suggesting that the imidacloprid hazard and risk for F. candida may be increased if soil moisture decreases due to climate changes, depending on the soil type.
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Affiliation(s)
- Thuanne Braúlio Hennig
- Dep. of Soil Science, Santa Catarina State Univ., Ave. Luis de Camões, 2090, Lages, SC, 88520-000, Brazil
- Federal Univ. of Fronteira Sul, Ave. Fernando Machado 108 E, Chapecó, SC, 89802112, Brazil
| | - Felipe Ogliari Bandeira
- Dep. of Soil Science, Santa Catarina State Univ., Ave. Luis de Camões, 2090, Lages, SC, 88520-000, Brazil
| | | | | | - Dilmar Baretta
- Dep. of Soil Science, Santa Catarina State Univ., Ave. Luis de Camões, 2090, Lages, SC, 88520-000, Brazil
- Centro de Educação Superior do Oeste, Santa Catarina State Univ., Beloni Trombeta Zanin, 680-E, Chapecó, SC, 89815-630, Brazil
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González-Alcaraz MN, Loureiro S, van Gestel CAM. Toxicokinetics of Zn and Cd in the earthworm Eisenia andrei exposed to metal-contaminated soils under different combinations of air temperature and soil moisture content. CHEMOSPHERE 2018; 197:26-32. [PMID: 29331715 DOI: 10.1016/j.chemosphere.2018.01.019] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/23/2017] [Revised: 12/15/2017] [Accepted: 01/05/2018] [Indexed: 06/07/2023]
Abstract
This study evaluated how different combinations of air temperature (20 °C and 25 °C) and soil moisture content (50% and 30% of the soil water holding capacity, WHC), reflecting realistic climate change scenarios, affect the bioaccumulation kinetics of Zn and Cd in the earthworm Eisenia andrei. Earthworms were exposed for 21 d to two metal-contaminated soils (uptake phase), followed by 21 d incubation in non-contaminated soil (elimination phase). Body Zn and Cd concentrations were checked in time and metal uptake (k1) and elimination (k2) rate constants determined; metal bioaccumulation factor (BAF) was calculated as k1/k2. Earthworms showed extremely fast uptake and elimination of Zn, regardless of the exposure level. Climate conditions had no major impacts on the bioaccumulation kinetics of Zn, although a tendency towards lower k1 and k2 values was observed at 25 °C + 30% WHC. Earthworm Cd concentrations gradually increased with time upon exposure to metal-contaminated soils, especially at 50% WHC, and remained constant or slowly decreased following transfer to non-contaminated soil. Different combinations of air temperature and soil moisture content changed the bioaccumulation kinetics of Cd, leading to higher k1 and k2 values for earthworms incubated at 25 °C + 50% WHC and slower Cd kinetics at 25 °C + 30% WHC. This resulted in greater BAFs for Cd at warmer and drier environments which could imply higher toxicity risks but also of transfer of Cd within the food chain under the current global warming perspective.
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Affiliation(s)
- M Nazaret González-Alcaraz
- Department of Ecological Science, Faculty of Science, Vrije Universiteit, De Boelelaan 1085, 1081 HV, Amsterdam, The Netherlands.
| | - Susana Loureiro
- Department of Biology & CESAM, Campus Universitário de Santiago, University of Aveiro, 3810-193, Aveiro, Portugal
| | - Cornelis A M van Gestel
- Department of Ecological Science, Faculty of Science, Vrije Universiteit, De Boelelaan 1085, 1081 HV, Amsterdam, The Netherlands
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Fu QL, Weng N, Fujii M, Zhou DM. Temporal variability in Cu speciation, phytotoxicity, and soil microbial activity of Cu-polluted soils as affected by elevated temperature. CHEMOSPHERE 2018; 194:285-296. [PMID: 29216548 DOI: 10.1016/j.chemosphere.2017.11.183] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/30/2017] [Revised: 11/28/2017] [Accepted: 11/30/2017] [Indexed: 06/07/2023]
Abstract
Global warming has obtained increasing attentions due to its multiple impacts on agro-ecosystem. However, limited efforts had been devoted to reveal the temporal variability of metal speciation and phytotoxicity of heavy metal-polluted soils affected by elevated temperature under the global warming scenario. In this study, effects of elevated temperature (15 °C, 25 °C, and 35 °C) on the physicochemical properties, microbial metabolic activities, and phytotoxicity of three Cu-polluted soils were investigated by a laboratory incubation study. Soil physicochemical properties were observed to be significantly altered by elevated temperature with the degree of temperature effect varying in soil types and incubation time. The Biolog and enzymatic tests demonstrated that soil microbial activities were mainly controlled and decreased with increasing incubation temperature. Moreover, plant assays confirmed that the phytotoxicity and Cu uptake by wheat roots were highly dependent on soil types but less affected by incubation temperature. Overall, the findings in this study have highlighted the importance of soil types to better understand the temperature-dependent alternation of soil properties, Cu speciation and bioavailability, as well as phytotoxicity of Cu-polluted soils under global warming scenario. The present study also suggests the necessary of investigating effects of soil types on the transport and accumulation of toxic elements in soil-crop systems under global warming scenario.
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Affiliation(s)
- Qing-Long Fu
- Key Laboratory of Soil Environment and Pollution Remediation, Institute of Soil Science, Chinese Academy of Sciences, Nanjing 210008, PR China; Department of Civil and Environmental Engineering, Tokyo Institute of Technology, Ookayama, Meguroku, Tokyo 152-8552, Japan.
| | - Nanyan Weng
- Key Laboratory of Soil Environment and Pollution Remediation, Institute of Soil Science, Chinese Academy of Sciences, Nanjing 210008, PR China; HKUST-Shenzhen Research Institute, Shenzhen, 518057, PR China.
| | - Manabu Fujii
- Department of Civil and Environmental Engineering, Tokyo Institute of Technology, Ookayama, Meguroku, Tokyo 152-8552, Japan.
| | - Dong-Mei Zhou
- Key Laboratory of Soil Environment and Pollution Remediation, Institute of Soil Science, Chinese Academy of Sciences, Nanjing 210008, PR China.
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9
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Hackenberger DK, Palijan G, Lončarić Ž, Jovanović Glavaš O, Hackenberger BK. Influence of soil temperature and moisture on biochemical biomarkers in earthworm and microbial activity after exposure to propiconazole and chlorantraniliprole. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2018; 148:480-489. [PMID: 29121590 DOI: 10.1016/j.ecoenv.2017.10.072] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/28/2017] [Revised: 10/29/2017] [Accepted: 10/31/2017] [Indexed: 06/07/2023]
Abstract
Predicted climate change could impact the effects that various chemicals have on organisms. Increased temperature or change in precipitation regime could either enhance or lower toxicity of pesticides. The aim of this study is to assess how change in temperature and soil moisture affect biochemical biomarkers in Eisenia fetida earthworm and microbial activity in their excrements after exposure to a fungicide - propiconazole (PCZ) and an insecticide - chlorantraniliprole (CAP). For seven days, earthworms were exposed to the pesticides under four environmental conditions comprising combinations of two different temperatures (20°C and 25°C) and two different soil water holding capacities (30% and 50%). After exposure, in the collected earthworm casts the microbial activity was measured through dehydrogenase activity (DHA) and biofilm forming ability (BFA), and in the postmitochondrial fraction of earthworms the activities of acetylcholinesterase (AChE), catalase (CAT) and glutathione-S-transferase (GST) respectively. The temperature and the soil moisture affected enzyme activities and organism's response to pesticides. It was determined that a three-way interaction (pesticide concentration, temperature and moisture) is statistically significant for the CAT and GST after the CAP exposure, and for the AChE and CAT after the PCZ exposure. Interestingly, the AChE activity was induced by both pesticides at a higher temperature tested. The most important two-way interaction that was determined occurred between the concentration and temperature applied. DHA and BFA, as markers of microbial activity, were unevenly affected by PCZ, CAP and environmental conditions. The results of this experiment demonstrate that experiments with at least two different environmental conditions can give a very good insight into some possible effects that the climate change could have on the toxicity of pesticides. The interaction of environmental factors should play a more important role in the risk assessments for pesticides.
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Affiliation(s)
- Davorka K Hackenberger
- Department of Biology, University of Osijek, Cara Hadrijana 8A, HR-31000 Osijek, Croatia.
| | - Goran Palijan
- Department of Biology, University of Osijek, Cara Hadrijana 8A, HR-31000 Osijek, Croatia.
| | - Željka Lončarić
- Department of Biology, University of Osijek, Cara Hadrijana 8A, HR-31000 Osijek, Croatia.
| | - Olga Jovanović Glavaš
- Department of Biology, University of Osijek, Cara Hadrijana 8A, HR-31000 Osijek, Croatia.
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Buch AC, Schmelz RM, Niva CC, Correia MEF, Silva-Filho EV. Mercury critical concentrations to Enchytraeus crypticus (Annelida: Oligochaeta) under normal and extreme conditions of moisture in tropical soils - Reproduction and survival. ENVIRONMENTAL RESEARCH 2017; 155:365-372. [PMID: 28273622 DOI: 10.1016/j.envres.2017.03.005] [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: 12/08/2016] [Revised: 02/17/2017] [Accepted: 03/02/2017] [Indexed: 06/06/2023]
Abstract
Soil provides many ecosystem services that are essential to maintain its quality and healthy development of the flora, fauna and human well-being. Environmental mercury levels may harm the survival and diversity of the soil fauna. In this respect, efforts have been made to establish limit values of mercury (Hg) in soils to terrestrial fauna. Soil organisms such as earthworms and enchytraeids have intimate contact with trace metals in soil by their oral and dermal routes, reflecting the potentially adverse effects of this contaminant. The main goal of this study was to obtain Hg critical concentrations under normal and extreme conditions of moisture in tropical soils to Enchytraeus crypticus to order to assess if climate change may potentiate their acute and chronic toxicity effects. Tropical soils were sampled from of two Forest Conservation Units of the Rio de Janeiro State - Brazil, which has been contaminated by Hg atmospheric depositions. Worms were exposed to three moisture conditions, at 20%, 50% and 80% of water holding capacity, respectively, and in combination with different Hg (HgCl2) concentrations spiked in three types of tropical soil (two natural soils and one artificial soil). The tested concentrations ranged from 0 to 512mg Hg kg-1 dry weight. Results indicate that the Hg toxicity is higher under increased conditions of moisture, significantly affecting survival and reproduction rate.
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Affiliation(s)
- Andressa Cristhy Buch
- Department of Environmental Geochemistry, Fluminense Federal University, Outeiro São João Baptista, s/n., Centro, 24020-007 Niterói, RJ, Brazil.
| | - Rüdiger M Schmelz
- ECT Oekotoxikologie GmbH, Boettgerstr. 2-14, D-65439 Flörsheim/Main, Germany
| | - Cintia Carla Niva
- Embrapa Cerrados, BR 020 km. 18, Rodovia Brasília/Fortaleza, 73310-970 Planaltina, DF, Brazil
| | | | - Emmanoel Vieira Silva-Filho
- Department of Environmental Geochemistry, Fluminense Federal University, Outeiro São João Baptista, s/n., Centro, 24020-007 Niterói, RJ, Brazil
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Barmentlo SH, van Gestel CAM, Álvarez-Rogel J, González-Alcaraz MN. Influence of climate change on the multi-generation toxicity to Enchytraeus crypticus of soils polluted by metal/metalloid mining wastes. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2017; 222:101-108. [PMID: 28073585 DOI: 10.1016/j.envpol.2016.12.078] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/19/2016] [Revised: 12/21/2016] [Accepted: 12/29/2016] [Indexed: 06/06/2023]
Abstract
This study aimed at assessing the effects of increased air temperature and reduced soil moisture content on the multi-generation toxicity of a soil polluted by metal/metalloid mining wastes. Enchytraeus crypticus was exposed to dilution series of the polluted soil in Lufa 2.2 soil under different combinations of air temperature (20 °C and 25 °C) and soil moisture content (50% and 30% of the soil water holding capacity, WHC) over three generations standardized on physiological time. Generation time was shorter with increasing air temperature and/or soil moisture content. Adult survival was only affected at 30% WHC (∼30% reduction at the highest percentages of polluted soil). Reproduction decreased with increasing percentage of polluted soil in a dose-related manner and over generations. Toxicity increased at 30% WHC (>50% reduction in EC50 in F0 and F1 generations) and over generations in the treatments at 20 °C (40-60% reduction in EC50 in F2 generation). At 25 °C, toxicity did not change when combined with 30% WHC and only slightly increased with 50% WHC. So, higher air temperature and/or reduced soil moisture content does affect the toxicity of soils polluted by metal/metalloid mining wastes to E. crypticus and this effect may exacerbate over generations.
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Affiliation(s)
- S Henrik Barmentlo
- Department of Ecological Science, Faculty of Earth and Life Sciences, Vrije Universiteit, De Boelelaan 1085, 1081 HV Amsterdam, The Netherlands.
| | - Cornelis A M van Gestel
- Department of Ecological Science, Faculty of Earth and Life Sciences, Vrije Universiteit, De Boelelaan 1085, 1081 HV Amsterdam, The Netherlands.
| | - José Álvarez-Rogel
- Departamento de Ciencia y Tecnología Agraria, Escuela Técnica Superior de Ingeniería Agronómica, Universidad Politécnica de Cartagena, Paseo Alfonso XIII 48, 30203 Cartagena, Murcia, Spain.
| | - M Nazaret González-Alcaraz
- Department of Ecological Science, Faculty of Earth and Life Sciences, Vrije Universiteit, De Boelelaan 1085, 1081 HV Amsterdam, The Netherlands.
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