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Nasri A, Allouche M, Hannachi A, Barkaoui T, Barhoumi B, Saidi I, D'Agostino F, Mahmoudi E, Beyrem H, Boufahja F. Nematodes trophic groups changing via reducing of bacterial population density after sediment enrichment to ciprofloxacin antibiotic: Case study of Marine Mediterranean community. Aquat Toxicol 2020; 228:105632. [PMID: 33010638 DOI: 10.1016/j.aquatox.2020.105632] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/31/2020] [Revised: 09/04/2020] [Accepted: 09/10/2020] [Indexed: 06/11/2023]
Abstract
An experiment was carried out using microcosms to evaluate the impact of the fluoroquinolone antibiotic on nematode trophic groups structure and bacterial abundance. Sediment samples were experimentally enriched with four increasing doses of ciprofloxacin [D1 (50 ppm), D2 (100 ppm), D3 (200 ppm) and D4 (500 ppm)] and compared to non-enriched sediments (used as control). Ciprofloxacin changed the trophic composition of nematodes taxa where the relative abundance of microvores (M), epigrowth feeders (EF) and ciliate consumers (CF), raised in a control microcosm, was highly affected and significantly decreased in response to the increasing doses. Nevertheless, the abundance of deposit feeders (DF), optional predators (FP) and exclusive predators (Pr) showed a significant increase. Results from the multivariate analysis showed a clear impact of this antibiotic on nematode trophic assemblages. Microcosms treated with the three highest doses [D2, D3 and D4] were different from the control. The exceptions were those treated with the lowest dose, D1, and which were grouped with the control. The SIMPER analysis results showed that the average dissimilarity continuously increased in the treated microcosms compared to the control. Furthermore, our results have shown that ciprofloxacin also leads to a significant decrease in bacterial density with the highest dose, which could explain the results obtained for nematode trophic groups distribution. Thus, the bacteriophages nematodes only use bacteria as a nutrition source and the lack or presence in small quantity of this food could induce a decrease in their abundance as well as changing of nematodes groups repartition. Our work demonstrates that the nematode responses were dependent on sediment enrichment with ciprofloxacin and opens new perspectives on the potential impact of antibiotics on functional nematode diversity.
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Affiliation(s)
- Ahmed Nasri
- Laboratory of Environment Biomonitoring, University of Carthage, Faculty of Sciences of Bizerta (FSB), 7021 Zarzouna, Bizerta, Tunisia.
| | - Mohamed Allouche
- Laboratory of Environment Biomonitoring, University of Carthage, Faculty of Sciences of Bizerta (FSB), 7021 Zarzouna, Bizerta, Tunisia
| | - Amel Hannachi
- Laboratory of Environment Biomonitoring, University of Carthage, Faculty of Sciences of Bizerta (FSB), 7021 Zarzouna, Bizerta, Tunisia
| | - Taha Barkaoui
- Laboratory of Biochemistry and Molecular Biology, Faculty of Science of Bizerta, Bizerta, Tunisia
| | - Badreddine Barhoumi
- Laboratory of Hetero-Organic Compounds and Nanostructured Materials (LR18ES11), Department of Chemistry, Faculty of Sciences of Bizerte, University of Carthage, 7021 Zarzouna, Tunisia
| | - Ibtihel Saidi
- Laboratory of Environment Biomonitoring, University of Carthage, Faculty of Sciences of Bizerta (FSB), 7021 Zarzouna, Bizerta, Tunisia
| | - Fabio D'Agostino
- Institute for the Study of Anthropogenic Impacts and Sustainability in the Marine Environment" of Council National of Research (CNR-IAS), Italy
| | - Ezzeddine Mahmoudi
- Laboratory of Environment Biomonitoring, University of Carthage, Faculty of Sciences of Bizerta (FSB), 7021 Zarzouna, Bizerta, Tunisia
| | - Hamouda Beyrem
- Laboratory of Environment Biomonitoring, University of Carthage, Faculty of Sciences of Bizerta (FSB), 7021 Zarzouna, Bizerta, Tunisia
| | - Fehmi Boufahja
- Laboratory of Environment Biomonitoring, University of Carthage, Faculty of Sciences of Bizerta (FSB), 7021 Zarzouna, Bizerta, Tunisia
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Gutiérrez C, Fernández C, Escuer M, Campos-Herrera R, Beltrán Rodríguez ME, Carbonell G, Rodríguez Martín JA. Effect of soil properties, heavy metals and emerging contaminants in the soil nematodes diversity. Environ Pollut 2016; 213:184-194. [PMID: 26895540 DOI: 10.1016/j.envpol.2016.02.012] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/27/2015] [Revised: 02/02/2016] [Accepted: 02/04/2016] [Indexed: 05/12/2023]
Abstract
Among soil organisms, nematodes are seen as the most promising candidates for bioindications of soil health. We hypothesized that the soil nematode community structure would differ in three land use areas (agricultural, forest and industrial soils), be modulated by soil parameters (N, P, K, pH, SOM, CaCO3, granulometric fraction, etc.), and strongly affected by high levels of heavy metals (Cd, Pb, Zn, Cr, Ni, Cu, and Hg) and emerging contaminants (pharmaceuticals and personal care products, PPCPs). Although these pollutants did not significantly affect the total number of free-living nematodes, diversity and structure community indices vastly altered. Our data showed that whereas nematodes with r-strategy were tolerant, genera with k-strategy were negatively affected by the selected pollutants. These effects diminished in soils with high levels of heavy metals given their adaptation to the historical pollution in this area, but not to emerging pollutants like PPCPs.
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Affiliation(s)
- Carmen Gutiérrez
- Instituto de Ciencias Agrarias, ICA-CSIC, Serrano, 115bis, 28006 Madrid, Spain
| | - Carlos Fernández
- Depto. Medio Ambiente, Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria (I.N.I.A), Carretera de A Coruña 7.5 km, 28040, Madrid, Spain
| | - Miguel Escuer
- Instituto de Ciencias Agrarias, ICA-CSIC, Serrano, 115bis, 28006 Madrid, Spain
| | - Raquel Campos-Herrera
- Instituto de Ciencias Agrarias, ICA-CSIC, Serrano, 115bis, 28006 Madrid, Spain; Centro para os Recursos Biológicos e Alimentos Mediterrânicos (MeditBio), Campus Gambelas, Edf. 8, Universidade do Algarve, 8005-139, Faro, Portugal
| | - Mª Eulalia Beltrán Rodríguez
- Depto. Medio Ambiente, Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria (I.N.I.A), Carretera de A Coruña 7.5 km, 28040, Madrid, Spain
| | - Gregoria Carbonell
- Depto. Medio Ambiente, Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria (I.N.I.A), Carretera de A Coruña 7.5 km, 28040, Madrid, Spain
| | - Jose Antonio Rodríguez Martín
- Depto. Medio Ambiente, Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria (I.N.I.A), Carretera de A Coruña 7.5 km, 28040, Madrid, Spain.
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Rodríguez Martín JA, Gutiérrez C, Escuer M, García-González MT, Campos-Herrera R, Aguila N. Effect of mine tailing on the spatial variability of soil nematodes from lead pollution in La Union (Spain). Sci Total Environ 2014; 473-474:518-529. [PMID: 24394364 DOI: 10.1016/j.scitotenv.2013.12.075] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/23/2013] [Revised: 11/22/2013] [Accepted: 12/16/2013] [Indexed: 06/03/2023]
Abstract
The Cartagena-La Union mining district, exploited since the end of the 3rd century BC, was one of the world's largest lead producers in the 19th century. Although activity ceased in 1991, today mining residues pose a huge pollution problem. This study characterises lead contents (total and DPTA) and other soil parameters (N, P, K, pH, SOM, CaCO3, granulometric fraction, etc.) using multivariate geostatistical methods in relation to nematode diversity. In this work, trophic groups and metabolic footprints of soil nematodes were measured using 193 samples from the mining, natural and agricultural areas in this district. We explored the relationship between soil health and nematode communities. High lead concentrations were quantified: mean 8,500 mg kg(-1) for total and 340 mg kg(-1) for DPTA in this mining area. Although nematode diversity was broad (81 taxa), their diversity, abundance and metabolic footprints significantly reduced in the mining area. Significant differences in the nematode community structure were observed, and the relative abundance of predators was sensitive to mine and agricultural activities, whilst omnivores reduced only in the agricultural area, and bacterial feeders exhibited a differential response to both anthropogenic disturbances. The total abundance of nematodes, trophic groups and c-p groups correlated negatively with soil Pb contents, and a positive relationship was found with SOM and N, P and K contents.
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Affiliation(s)
- José Antonio Rodríguez Martín
- Depto. Medio Ambiente, Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria (I.N.I.A), Carretera de A Coruña 7.5km, 28040 Madrid, Spain.
| | - Carmen Gutiérrez
- Instituto de Ciencias Agrarias, ICA-CSIC, Serrano, 115, 28006 Madrid, Spain
| | - Miguel Escuer
- Instituto de Ciencias Agrarias, ICA-CSIC, Serrano, 115, 28006 Madrid, Spain
| | | | | | - Nancy Aguila
- Instituto de Ciencias Agrarias, ICA-CSIC, Serrano, 115, 28006 Madrid, Spain
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