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Iribarne-Durán LM, Castillero-Rosales I, Peinado FM, Artacho-Cordón F, Molina-Molina JM, Medianero E, Nicolás-Delgado SI, Sánchez-Pinzón L, Núñez-Samudio V, Vela-Soria F, Olea N, Alvarado-González NE. Placental concentrations of xenoestrogenic organochlorine pesticides and polychlorinated biphenyls and assessment of their xenoestrogenicity in the PA-MAMI mother-child cohort. Environ Res 2024; 241:117622. [PMID: 37977273 DOI: 10.1016/j.envres.2023.117622] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [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: 04/26/2023] [Revised: 11/05/2023] [Accepted: 11/07/2023] [Indexed: 11/19/2023]
Abstract
BACKGROUND Organochlorine pesticides (OCPs) and polychlorinated biphenyls (PCB), they have contributed to the exposure of women to persistent organic pollutants (POPs). These compounds can cross the placental barrier and interfere with the hormonal system of newborns. AIM To determine concentrations of OCPs and PCBs and their xenoestrogenic activity in placentas of women from the PA-MAMI cohort of Panama. METHODS Thirty-nine placenta samples from women in the Azuero peninsula (Panama) were analyzed. Five OCPs [p-p'-dichlorodiphenyldichloroethylene (p-p'-DDE), beta-hexachlorohexane (β-HCH), γ-hexachlorohexane (lindane), hexachlorobenzene (HCB) and mirex] and three PCB congeners (PCB-138, PCB-153 and PCB-180) were quantified in placenta extracts. The xenoestrogenic activity of extracts was assessed with the E-Screen bioassay to estimate the total effective xenoestrogen burden (TEXB). RESULTS All placental samples were positive for at least three POP residues and >70% for at least six. The frequencies of quantified OCPs ranged from 100% for p,p'-DDE and HCB to 30.8% for β-HCH. The highest median concentration was for lindane (380.0 pg/g placenta), followed by p,p'-DDE (280.0 pg/g placenta), and HCB (90.0 pg/g placenta). Exposure to p,p'-DDE was associated with greater meat consumption, suggesting that animal fat is a major source of exposure to DDT metabolites. The frequency of detected PCBs ranged between 70 and 90%; the highest median concentration was for PCB 138 (17.0 pg/g placenta), followed by PCB 153 (16.0 pg/g placenta). All placentas were positive in the estrogenicity bioassay with a median TEXB-α of 0.91 pM Eeq/g of placenta. Exposure to lindane was positively associated with the xenoestrogenicity of TEXB- α, whereas this association was negative in the case of exposure to PCB 153. CONCLUSIONS To our best knowledge, this study contributes the first evidence on the presence of POPs and xenoestrogenic burden in placentas from Latin-American women. Given concerns about the consequences of prenatal exposure to these compounds on children's health, preventive measures are highly recommended to eliminate or minimize the risk of OCP exposure during pregnancy.
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Affiliation(s)
- L M Iribarne-Durán
- Instituto de Investigación Biosanitaria de Granada (ibs. GRANADA), E-18012, Granada, Spain.
| | | | - F M Peinado
- Instituto de Investigación Biosanitaria de Granada (ibs. GRANADA), E-18012, Granada, Spain
| | - F Artacho-Cordón
- Instituto de Investigación Biosanitaria de Granada (ibs. GRANADA), E-18012, Granada, Spain; CIBER de Epidemiología y Salud Pública (CIBERESP), E- 28029, Madrid, Spain; Departamento de Radiología y Medicina Física, Universidad de Granada, E- 18016, Granada, Spain
| | - J M Molina-Molina
- Instituto de Investigación Biosanitaria de Granada (ibs. GRANADA), E-18012, Granada, Spain
| | - E Medianero
- Departamento de Ciencias Ambientales, Facultad de Ciencias Naturales, Exactas y Tecnología, Universidad de Panamá, Panama; Secretaria Nacional de Ciencia, Tecnología e Innovación (SENACYT), Panama
| | - S I Nicolás-Delgado
- Departamento de Ginecología y Obstetricia, Hospital Joaquín Pablo Franco Sayas, Ministerio de Salud, Los Santos, Panama
| | - L Sánchez-Pinzón
- Clínica de Cesación de Tabaco y Clínica del Empleado Local, Región de Salud de Azuero, Ministerio de Salud, Los Santos, Panama
| | - V Núñez-Samudio
- Departamento de Salud Pública, Sección de Epidemiología, Región de Salud de Herrera, Ministerio de Salud, Panama; Instituto de Ciencias Médicas, Las Tablas, Los Santos, Panama
| | - F Vela-Soria
- Instituto de Investigación Biosanitaria de Granada (ibs. GRANADA), E-18012, Granada, Spain
| | - N Olea
- Instituto de Investigación Biosanitaria de Granada (ibs. GRANADA), E-18012, Granada, Spain; CIBER de Epidemiología y Salud Pública (CIBERESP), E- 28029, Madrid, Spain; Departamento de Radiología y Medicina Física, Universidad de Granada, E- 18016, Granada, Spain; Unidad de Medicina Nuclear, Hospital Universitario San Cecilio, E- 18016, Granada, Spain
| | - N E Alvarado-González
- Instituto Especializado de Análisis (IEA), Vicerrectoría de Investigación y Postgrado, Universidad de Panamá, Panama
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Sharma M, Singh DN, Uttam G, Sharma P, Meena SA, Verma AK, Negi RK. Adaptive evolution of Sphingopyxis sp. MC4 conferred degradation potential for persistent β- and δ-Hexachlorocyclohexane (HCH) isomers. J Hazard Mater 2024; 461:132545. [PMID: 37757562 DOI: 10.1016/j.jhazmat.2023.132545] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [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: 02/20/2023] [Revised: 09/09/2023] [Accepted: 09/11/2023] [Indexed: 09/29/2023]
Abstract
Hexachlorocyclohexane (HCH), an organochlorine pesticide imposes several harmful impacts on the ecosystem. β- and δ-isomers of HCH are highly toxic, persistent, and recalcitrant to biodegradation, slow and incomplete degradation of β- and δ- isomers have been reported in a few strains. We have isolated a strain designated as Sphingopyxis strain MC4 that can tolerate and degrade high concentrations of α-, β-, γ- and δ-HCH isomers. To date, no other Sphingopyxis strain has been reported to degrade β- and δ-isomers. To understand the underlying genetic makeup contributing to adaptations, the whole genome of strain MC4 was sequenced. Comparative genome analysis showed that strain MC4 harbors the complete pathway (lin genes) required for HCH degradation. Genetic footprints such as presence of lin genes on genomic islands, IS6100 elements in close proximity of lin genes, and synteny in lin flanking regions with other strains reflects the horizontal gene transfer in strain MC4. Positive selection and HGT drive the adaptive evolution of strain MC4 under the pressure of HCH contamination that it experienced in its surrounding niche. In silico analyses showed efficient binding of β- and δ-isomers with enzymes leading to rapid degradation that need further validation by cloning and biochemical experiments.
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Affiliation(s)
- Monika Sharma
- Department of Zoology, University of Delhi, Delhi 110007, India
| | - Durgesh Narain Singh
- Department of Zoology, University of Delhi, Delhi 110007, India; BioNEST-BHU, InnoResTech Foundation, Institute of Science, Banaras Hindu University, Varanasi 221005, Uttar Pradesh, India
| | - Gunjan Uttam
- Zoology section, MMV, Banaras Hindu University, Varanasi 221005, Uttar Pradesh, India
| | - Poonam Sharma
- Department of Chemistry, University of Delhi, Delhi 110007, India
| | - Shivam A Meena
- Department of Chemistry, University of Delhi, Delhi 110007, India
| | - Akhilesh K Verma
- Department of Chemistry, University of Delhi, Delhi 110007, India
| | - Ram Krishan Negi
- Department of Zoology, University of Delhi, Delhi 110007, India.
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3
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Yusuf Habibullah KO, Ito R, Stari L, Kishida K, Ohtsubo Y, Masai E, Fukuda M, Miyauchi K, Nagata Y. Degradation of DDT by γ-hexachlorocyclohexane dehydrochlorinase LinA. Biosci Biotechnol Biochem 2023; 88:123-130. [PMID: 37796901 DOI: 10.1093/bbb/zbad141] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2023] [Accepted: 09/27/2023] [Indexed: 10/07/2023]
Abstract
1,1,1-Trichloro-2,2-bis(4-chlorophenyl)-ethane (DDT) is the first synthetic insecticide and one of the most widely used pesticides. The use of DDT has been banned, but it remains one of the most notorious environmental pollutants around the world. In this study, we found that γ-hexachlorocyclohexane (γ-HCH) dehydrochlorinase LinA from a γ-HCH-degrading bacterium, Sphingobium japonicum UT26, converts DDT to 1,1-dichloro-2,2-bis(4-chlorophenyl)-ethylene (DDE). Because of the weak DDT degradation activity of LinA, we could not detect such activity in UT26 cells expressing LinA constitutively. However, the linA-deletion mutant of UT26 harboring a plasmid for the expression of LinA, in which LinA was expressed at a higher level than UT26, showed the DDT degradation activity. This outcome highlights the potential for constructing DDT-degrading sphingomonad cells through elevated LinA expression.
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Affiliation(s)
| | - Ren Ito
- Department of Molecular and Chemical Life Sciences, Graduate School of Life Sciences, Tohoku University, Sendai, Japan
| | - Leonardo Stari
- Department of Molecular and Chemical Life Sciences, Graduate School of Life Sciences, Tohoku University, Sendai, Japan
| | - Kouhei Kishida
- Department of Molecular and Chemical Life Sciences, Graduate School of Life Sciences, Tohoku University, Sendai, Japan
| | - Yoshiyuki Ohtsubo
- Department of Molecular and Chemical Life Sciences, Graduate School of Life Sciences, Tohoku University, Sendai, Japan
| | - Eiji Masai
- Department of Materials Science and Bioengineering, Nagaoka University of Technology, Nagaoka, Niigata, Japan
| | - Masao Fukuda
- Department of Science of Technology Innovation, Nagaoka University of Technology, Nagaoka, Niigata, Japan
| | - Keisuke Miyauchi
- Department of Civil and Environmental Engineering, Faculty of Engineering, Tohoku Gakuin University, Sendai, Japan
| | - Yuji Nagata
- Department of Molecular and Chemical Life Sciences, Graduate School of Life Sciences, Tohoku University, Sendai, Japan
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Amirbekov A, Strojsova M, Nemecek J, Riha J, Hrabak P, Arias C, Sevcu A, Černík M. Biodiversity in wetland+ system: a passive solution for HCH dump effluents. Water Sci Technol 2023; 88:3095-3109. [PMID: 38154796 PMCID: wst_2023_395 DOI: 10.2166/wst.2023.395] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/30/2023]
Abstract
The hexachlorocyclohexane isomers (HCH) are long-banned pesticides. Even though their use has been prohibited for decades, their presence in the environment is still reported worldwide. Wetland + is a registered trademark of the remedial treatment technology consisting of an aerobic sedimentary tank, a permeable reactive barrier, a biosorption system, and an aerobic wetland. This proven method combines a reductive treatment known from PRBs with the natural wetland self-cleaning processes. The average efficiency of the system is 96.8% for chlorobenzenes (ClB) and 81.7% for HCH, during the first 12 months of the system operation. The presence of the genes encoding enzymes involved in the degradation of the HCH compounds indicates that the removal of HCH and ClB occurs not only by chemical removal but also through aerobic and anaerobic combining biodegradation. Changes in abundance and the composition of the diatom community were found to be suitable indicators of the water quality and of the impact of the Wetland + operation on the water ecosystem. The system's annual operation exhibited a markedly higher number of diatom species in the closing profiles of the Ostrovský Creek, the Wetland + effluent recipient.
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Affiliation(s)
- Aday Amirbekov
- Institute for Nanomaterials, Advanced Technologies and Innovation, Technical University of Liberec, Bendlova 7, Liberec 460 01, Czech Republic E-mail:
| | - Martina Strojsova
- Faculty of Science, Humanities and Education, Technical University of Liberec, Trebízskeho 1244/2, Liberec 460 01, Czech Republic
| | - Jan Nemecek
- Institute for Nanomaterials, Advanced Technologies and Innovation, Technical University of Liberec, Bendlova 7, Liberec 460 01, Czech Republic
| | - Jakub Riha
- Institute for Nanomaterials, Advanced Technologies and Innovation, Technical University of Liberec, Bendlova 7, Liberec 460 01, Czech Republic
| | - Pavel Hrabak
- Institute for Nanomaterials, Advanced Technologies and Innovation, Technical University of Liberec, Bendlova 7, Liberec 460 01, Czech Republic
| | - Carlos Arias
- Department of Biology, Aquatic Biology, Ole Worms Allé 1, Aarhus University, Aarhus C 8000, Denmark; WATEC Aarhus University Centre for Water Technology, Aarhus University, Ole Worms Allé 3, Building 1171, Aarhus C 8000, Denmark
| | - Alena Sevcu
- Institute for Nanomaterials, Advanced Technologies and Innovation, Technical University of Liberec, Bendlova 7, Liberec 460 01, Czech Republic; Faculty of Science, Humanities and Education, Technical University of Liberec, Trebízskeho 1244/2, Liberec 460 01, Czech Republic
| | - Miroslav Černík
- Institute for Nanomaterials, Advanced Technologies and Innovation, Technical University of Liberec, Bendlova 7, Liberec 460 01, Czech Republic
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Kaur I, Kumar Gaur V, Rishi S, Anand V, Kumar Mishra S, Gaur R, Patel A, Srivastava S, Verma PC, Kumar Srivastava P. Deciphering the kinetics and pathway of lindane biodegradation by novel soil ascomycete fungi for its implication in bioremediation. Bioresour Technol 2023; 387:129581. [PMID: 37517709 DOI: 10.1016/j.biortech.2023.129581] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [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: 06/06/2023] [Revised: 07/18/2023] [Accepted: 07/25/2023] [Indexed: 08/01/2023]
Abstract
Lindane, an organochlorine pesticide, negatively affects living beings and the ecosystem. In this study, the potential of 9 Ascomycetes fungi, isolated from an hexachlorocyclohexane dumpsite soil, was tested for biodegradation of lindane. The strain Pleurostoma richardsiae (FN5) showed lindane biodegradation rate constant (K value) of 0.144 d-1 and a half-life of 4.8d. The formation of intermediate metabolites upon lindane degradation including γ-pentachlorocyclohexene, 2,4-dichlorophenol, phenol, benzene, 1,3- cyclohexadiene, and benzoic acid detected by GC-MS and the potential pathway adopted by the novel fungal strain FN5 for lindane biodegradation has been elucidated. The study of gene profiles with reference to linA and linB in strain FN5 confirmed the same protein family with the reported heterologs from other fungal strains in the NCBI database. This study for the first time provides a thorough understanding of lindane biodegradation by a novel soil-borne Ascomycota fungal strain for its possible application in field-scale bioremediation.
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Affiliation(s)
- Ispreet Kaur
- Environmental Technologies Division, CSIR-National Botanical Research Institute, Lucknow, India; Department of Microbiology, Dr. Rammanohar Lohia Avadh University, Ayodhya, India
| | - Vivek Kumar Gaur
- School of Energy and Chemical Engineering, Ulsan National Institute for Science and Technology, Republic of Korea
| | - Saloni Rishi
- Environmental Technologies Division, CSIR-National Botanical Research Institute, Lucknow, India
| | - Vandana Anand
- Environmental Technologies Division, CSIR-National Botanical Research Institute, Lucknow, India
| | - Shashank Kumar Mishra
- Environmental Technologies Division, CSIR-National Botanical Research Institute, Lucknow, India
| | - Rajeev Gaur
- Department of Microbiology, Dr. Rammanohar Lohia Avadh University, Ayodhya, India
| | - Anju Patel
- Environmental Technologies Division, CSIR-National Botanical Research Institute, Lucknow, India
| | - Suchi Srivastava
- Environmental Technologies Division, CSIR-National Botanical Research Institute, Lucknow, India
| | - Praveen C Verma
- Environmental Technologies Division, CSIR-National Botanical Research Institute, Lucknow, India
| | - Pankaj Kumar Srivastava
- Environmental Technologies Division, CSIR-National Botanical Research Institute, Lucknow, India.
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6
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Pavlíková N, Šrámek J, Jaček M, Kovář J, Němcová V. Targets for pollutants in rat and human pancreatic beta-cells: The effect of prolonged exposure to sub-lethal concentrations of hexachlorocyclohexane isomers on the expression of function- and survival-related proteins. Environ Toxicol Pharmacol 2023; 104:104299. [PMID: 37865351 DOI: 10.1016/j.etap.2023.104299] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [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: 06/15/2023] [Revised: 10/12/2023] [Accepted: 10/17/2023] [Indexed: 10/23/2023]
Abstract
Decades after most countries banned hexachlorocyclohexane, HCH isomers still pollute the environment. Many studies described HCH as a pro-diabetic factor; nevertheless, the effect of HCH isomers on pancreatic beta-cells remains unexplored. This study investigated the effects of a one-month exposure to α-HCH, β-HCH, and γ-HCH on protein expression in human (NES2Y) and rat (INS1E) pancreatic beta-cell lines. α-HCH and γ-HCH increased proinsulin and insulin levels in INS1E cells, while β-HCH showed the opposite trend. α-HCH altered the expression of PKA, ATF3, and PLIN2. β-HCH affected the expression of GLUT1, GLUT2, PKA, ATF3, p-eIF2α, ATP-CL, and PLIN2. γ-HCH altered the expression of PKA, ATF3, PLIN2, PLIN5, and IDH1. From the tested proteins, PKA, ATF3, and PLIN-2 were the most sensitive to HCH exposure and have the potential to be used as biomarkers.
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Affiliation(s)
- Nela Pavlíková
- Departement of Biochemistry, Cell and Molecular Biology & Center for Research on Nutrition, Metabolism, and Diabetes, Third Faculty of Medicine, Charles University, Prague, Czech Republic.
| | - Jan Šrámek
- Departement of Biochemistry, Cell and Molecular Biology & Center for Research on Nutrition, Metabolism, and Diabetes, Third Faculty of Medicine, Charles University, Prague, Czech Republic
| | - Martin Jaček
- Department of Hygiene, Third Faculty of Medicine, Charles University, Ruská 87, 100 00 Prague 10, Czech Republic
| | - Jan Kovář
- Departement of Biochemistry, Cell and Molecular Biology & Center for Research on Nutrition, Metabolism, and Diabetes, Third Faculty of Medicine, Charles University, Prague, Czech Republic
| | - Vlasta Němcová
- Departement of Biochemistry, Cell and Molecular Biology & Center for Research on Nutrition, Metabolism, and Diabetes, Third Faculty of Medicine, Charles University, Prague, Czech Republic
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Sahoo B, Chaudhuri S. Removal of lindane in liquid culture using soil bacteria and toxicity assessment in human skin fibroblast and HCT116 cell lines. Environ Technol 2023; 44:1213-1227. [PMID: 34694963 DOI: 10.1080/09593330.2021.1998229] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [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: 07/23/2021] [Accepted: 10/15/2021] [Indexed: 06/13/2023]
Abstract
The development of effective measures for the remediation of lindane contaminated sites is the need of the hour. In this study, a potent lindane degrading bacteria, identified as Rhodococcus rhodochrous NITDBS9 was isolated from an agricultural field of Odisha that could utilize up to 87% of 100 mg L-1 lindane when grown under liquid culture conditions in mineral salt media in 10 days. The bacteria could produce biofilm in lindane-containing media. Rhodococcus rhodochrous NITDBS9 was further characterized for its plant growth-promoting properties and it was found that the bacteria showed abilities for phytohormone, ammonia and biosurfactant production, etc. This could be beneficial for the bioremediation and improvement of crop production in contaminated sites. Ecotoxicity studies carried out for lindane, and its degradation products in mung bean and mustard seeds showed a reduction in toxicity of lindane after treatment with NITDBS9. NITDBS9 was used with a previously isolated potent lindane degrading strain Paracoccus sp. NITDBR1 in a dual mixed culture for the enhanced removal of lindane in the liquid system i.e. up to 93% in 10 days. Cytotoxicity studies were conducted with lindane before and after treatment with the single and dual mixed cultures on human skin fibroblast and HCT116 cell lines. They revealed a significant reduction in toxicity of lindane after it was bioremediated with the single and dual mixed cultures. Therefore, our proposed strategy could be efficiently used for the detoxification of the lindane-contaminated system, and further work should be done to study the use of these cultures in the contaminated soil system.
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Affiliation(s)
- Banishree Sahoo
- Department of Biotechnology, National Institute of Technology Durgapur, Durgapur, India
| | - Surabhi Chaudhuri
- Department of Biotechnology, National Institute of Technology Durgapur, Durgapur, India
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8
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Jaiswal S, Singh DK, Shukla P. Degradation effectiveness of hexachlorohexane (ϒ-HCH) by bacterial isolate Bacillus cereus SJPS-2, its gene annotation for bioremediation and comparison with Pseudomonas putida KT2440. Environ Pollut 2023; 318:120867. [PMID: 36528203 DOI: 10.1016/j.envpol.2022.120867] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [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: 04/21/2022] [Revised: 11/19/2022] [Accepted: 12/11/2022] [Indexed: 06/17/2023]
Abstract
The contamination of Hexachlorohexane (Lindane) in soil and water has toxic effects due to its persistent nature. In our study, an indigenous HCH (gamma isomer) degrading bacterium viz Bacillus cereus SJPS-2 was isolated from Yamuna river water using enrichment culture method. The growth curve indicated that Bacillus cereus SJPS-2 was able to degrade ϒ-HCH effectively with 80.98% degradation. Further, process was improved by using immobilization using alginate beads which showed enhanced degradation (89.34%). Interestingly, in presence of fructose, the ϒ-HCH degradation was up to 79.24% with exponential growth curve whereas the degradation was only 5.61% in presence of glucose revealing diauxic growth curve. Furthermore, The FTIR results confirmed the potential lindane degradation capability of Bacillus cereus SJPS-2 and the bonds were recorded at wavelengths viz. 2900-2500 cm-1, 3300-2800 cm-1 and 785-540 cm-1. Similarity, the GC studies also reconfirmed the degradation potential with retention time (RT) of ethyl acetate and lindane was 2.12 and 11.0 respectively. Further, we studied the metabolic pathway involved for lindane utilization in Bacillus cereus using KEGG-KASS and functional gene annotation through Rapid Annotation using Subsystems Technology (RAST) resulted in the annotation of the lin genes (lin A, lin B, lin C, lin X, lin D, lin E) and respective encoding enzymes. The comparative ϒ-HCH degradation potential of B. cereus and P. putida KT2440 was also evaluated. The island viewer showed the different colors on circular genome indicate the coordinates of genomic islands resulted with some common genomic islands (GEIs) between both bacteria indicating the possibility of horizontal gene transfer at contaminated site or natural environment. These genomic islands (GEIs) contribute in the rearrangement genetic material or to evolve bacteria in stress conditions, as a result the metabolic pathways evolve by formation of catabolic genes. This study establishes the potential of Bacillus cereus SJPS-2 for effectual ϒ-HCH degradation.
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Affiliation(s)
- Shweta Jaiswal
- Department of Microbiology, Maharshi Dayanand University, Rohtak, 124001, Haryana, India
| | - Dileep Kumar Singh
- Soil Microbial Ecology and Environmental Toxicology Laboratory, Department of Zoology, University of Delhi, Delhi, 110007, India
| | - Pratyoosh Shukla
- Department of Microbiology, Maharshi Dayanand University, Rohtak, 124001, Haryana, India; Enzyme Technology and Protein Bioinformatics Laboratory, School of Biotechnology, Institute of Science, Banaras Hindu University, Varanasi, 221005, India.
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9
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Yang X, Huang X, Cheng J, Cheng Z, Yang Q, Hu L, Xu J, He Y. Diversity-triggered bottom-up trophic interactions impair key soil functions under lindane pollution stress. Environ Pollut 2022; 314:120293. [PMID: 36183873 DOI: 10.1016/j.envpol.2022.120293] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [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: 07/24/2022] [Revised: 08/29/2022] [Accepted: 09/24/2022] [Indexed: 06/16/2023]
Abstract
A growing amount of evidence suggests that microbial diversity loss may have negative effects on soil ecosystem function. However, less attention has been paid to the determinants of the relationship between community diversity and soil functioning under pollution stress. Here we manipulated microbial diversity to observe how biotic and abiotic factors influenced soil multi-functions (e.g. lindane degradation, soil respiration and nutrient cycling). Results showed that protist community was more sensitive to dilution, pollution stress, and sodium acetate addition than bacterial and fungal community. Acetate addition accelerated the lindane removal. Any declines in microbial diversity reduced the specialized soil processes (NO3-N production, and N2O flux), but increased soil respiration rate. Dilution led to a significant increase in consumers-bacterial and fungi-bacterial interaction as evidenced by co-occurrence network, which possibly played roles in maintaining microbiome stability and resilience. Interestingly, pollution stress and resource availability weaken the relationship between microbial diversity and soil functions through the bottom-up trophic interaction and environmental preference of soil microbiome. Overall, this work provides experimental evidence that loss in microbial diversity, accompanied with changes in trophic interactions mediated biotic and abiotic factors, could have important consequences for specialized soil functioning in farmland ecosystems.
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Affiliation(s)
- Xueling Yang
- Institute of Soil and Water Resources and Environmental Science, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou, 310058, China; Zhejiang Provincial Key Laboratory of Agricultural Resources and Environment, Hangzhou, 310058, China
| | - Xiaowei Huang
- Institute of Soil and Water Resources and Environmental Science, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou, 310058, China; Zhejiang Provincial Key Laboratory of Agricultural Resources and Environment, Hangzhou, 310058, China
| | - Jie Cheng
- Institute of Soil and Water Resources and Environmental Science, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou, 310058, China; Zhejiang Provincial Key Laboratory of Agricultural Resources and Environment, Hangzhou, 310058, China
| | - Zhongyi Cheng
- Institute of Soil and Water Resources and Environmental Science, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou, 310058, China; Zhejiang Provincial Key Laboratory of Agricultural Resources and Environment, Hangzhou, 310058, China
| | - Qi Yang
- Institute of Soil and Water Resources and Environmental Science, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou, 310058, China; Zhejiang Provincial Key Laboratory of Agricultural Resources and Environment, Hangzhou, 310058, China
| | - Lingfei Hu
- Institute of Soil and Water Resources and Environmental Science, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou, 310058, China; Zhejiang Provincial Key Laboratory of Agricultural Resources and Environment, Hangzhou, 310058, China.
| | - Jianming Xu
- Institute of Soil and Water Resources and Environmental Science, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou, 310058, China; Zhejiang Provincial Key Laboratory of Agricultural Resources and Environment, Hangzhou, 310058, China
| | - Yan He
- Institute of Soil and Water Resources and Environmental Science, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou, 310058, China; Zhejiang Provincial Key Laboratory of Agricultural Resources and Environment, Hangzhou, 310058, China
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10
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Xie N, Gross AD. Muscarinic acetylcholine receptor activation synergizes the knockdown and toxicity of GABA-gated chloride channel insecticides. Pest Manag Sci 2022; 78:4599-4607. [PMID: 35841135 PMCID: PMC9805118 DOI: 10.1002/ps.7079] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/25/2022] [Revised: 06/30/2022] [Accepted: 07/16/2022] [Indexed: 06/01/2023]
Abstract
BACKGROUND Pest management requires continual identification of new physiological targets and strategies to control pests affecting agriculture and public/animal health. We propose the muscarinic system as a target for agrochemicals because of its physiological importance. Unlike the muscarinic system, gamma-amino butyric acid (GABA) receptors are an established insecticide target. Here, we investigated target-site synergism using small molecule probes (agonist and antagonist) against the muscarinic system and their ability to enhance the toxicity of GABAergic insecticides in Drosophila melanogaster (Meigen). RESULTS Oral delivery of pilocarpine (muscarinic agonist) enhanced the toxicity of dieldrin, fipronil, and lindane, resulting in synergist ratios (SRs) between 4-32-fold (orally delivered) or between 2-67-fold when insecticides were topically applied. The synergism between pilocarpine and the GABA-insecticides was greater than the synergism observed with atropine (muscarinic antagonist), and was greater, or comparable, to the synergism observed with the metabolic inhibitor piperonyl butoxide. In addition to lethality, pilocarpine increased the knockdown of lindane. The mechanism of synergism was also investigated in the central nervous system using extracellular electrophysiology, where pilocarpine (3 μmo/L) lowered the half-maximal inhibitory concentration (IC50 ) of lindane from 1.3 (0.86-1.98) μmol/L to 0.17 (0.14-0.21) μmol/L and fipronil's IC50 from 2.2 (1.54-3.29) μmol/L to 0.56 (0.40-0.77) μmol/L. CONCLUSION Convergence of the cellular function between the muscarinic and GABAergic systems enhanced the insecticidal activity of GABA receptor blocking insecticides through the modulation of the central nervous system (CNS). The future impact of the findings could be the reduction of the active ingredient needed in a formulation with the development of muscarinic synergists. © 2022 The Authors. Pest Management Science published by John Wiley & Sons Ltd on behalf of Society of Chemical Industry.
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Affiliation(s)
- Na Xie
- Molecular Physiology and Toxicology Laboratory, Department of EntomologyVirginia Polytechnic Institute and State UniversityBlacksburgVAUSA
| | - Aaron D. Gross
- Molecular Physiology and Toxicology Laboratory, Department of EntomologyVirginia Polytechnic Institute and State UniversityBlacksburgVAUSA
- School of Neuroscience, Fralin Life Science Institute, Virginia Polytechnic Institute and State UniversityVirginia Tech Center for Drug Discovery, Center for Emerging Zoonotic and Arthropod‐borne Diseases, and Molecular and Cellular Biology ProgramBlacksburgVAUSA
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11
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Balseiro-Romero M, Prieto-Fernández Á, Shor LM, Ghoshal S, Baveye PC, Ortega-Calvo JJ. Chemotactic Bacteria Facilitate the Dispersion of Nonmotile Bacteria through Micrometer-Sized Pores in Engineered Porous Media. Environ Sci Technol 2022; 56:13975-13984. [PMID: 36103595 PMCID: PMC9535858 DOI: 10.1021/acs.est.2c03149] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 05/03/2022] [Revised: 08/09/2022] [Accepted: 08/20/2022] [Indexed: 06/15/2023]
Abstract
Recent research has demonstrated that chemotactic bacteria can disperse inside microsized pores while traveling toward favorable conditions. Microbe-microbe cotransport might enable nonmotile bacteria to be carried with motile partners to enhance their dispersion and reduce their deposition in porous systems. The aim of this study was to demonstrate the enhancement in the dispersion of nonmotile bacteria (Mycobacterium gilvum VM552, a polycyclic aromatic hydrocarbon-degrader, and Sphingobium sp. D4, a hexachlorocyclohexane-degrader, through micrometer-sized pores near the exclusion-cell-size limit, in the presence of motile Pseudomonas putida G7 cells. For this purpose, we used bioreactors equipped with two chambers that were separated with membrane filters with 3, 5, and 12 μm pore sizes and capillary polydimethylsiloxane (PDMS) microarrays (20 μm × 35 μm × 2.2 mm). The cotransport of nonmotile bacteria occurred exclusively in the presence of a chemoattractant concentration gradient, and therefore, a directed flow of motile cells. This cotransport was more intense in the presence of larger pores (12 μm) and strong chemoeffectors (γ-aminobutyric acid). The mechanism that governed cotransport at the cell scale involved mechanical pushing and hydrodynamic interactions. Chemotaxis-mediated cotransport of bacterial degraders and its implications in pore accessibility opens new avenues for the enhancement of bacterial dispersion in porous media and the biodegradation of heterogeneously contaminated scenarios.
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Affiliation(s)
- María Balseiro-Romero
- Instituto
de Recursos Naturales y Agrobiología de Sevilla (IRNAS), Consejo Superior de Investigaciones Científicas
(CSIC), Avda. Reina Mercedes 10, 41012 Sevilla, Spain
| | - Ángeles Prieto-Fernández
- Instituto
de Investigaciones Agrobiológicas de Galicia (IIAG), Consejo Superior de Investigaciones Científicas
(CSIC), Avda. de Vigo s/n, 15705 Santiago de Compostela, Spain
| | - Leslie M. Shor
- Department
of Chemical and Biomolecular Engineering, University of Connecticut, Castleman Building Rm. 224, Connecticut 06269-3237 Storrs, United States
| | - Subhasis Ghoshal
- Department
of Civil Engineering, McGill University, 817 Sherbrooke Street West, Montreal, Quebec H3A 0C3, Canada
| | | | - José Julio Ortega-Calvo
- Instituto
de Recursos Naturales y Agrobiología de Sevilla (IRNAS), Consejo Superior de Investigaciones Científicas
(CSIC), Avda. Reina Mercedes 10, 41012 Sevilla, Spain
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12
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He A, Zhang Z, Yu Q, Yang K, Sheng GD. Lindane degradation in wet-dry cycling soil as affected by aging and microbial toxicity of biochar. Ecotoxicol Environ Saf 2021; 219:112374. [PMID: 34049226 DOI: 10.1016/j.ecoenv.2021.112374] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [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: 04/01/2021] [Revised: 05/18/2021] [Accepted: 05/23/2021] [Indexed: 06/12/2023]
Abstract
This study determined the degradation of lindane in soil amended with biochar to evaluate the effects of biochar aging and microbial toxicity. Two biochars were prepared at 400 and 600 °C (BC400 and BC600) and subjected to acid washing to remove nutrition (WBC400 and WBC600). After 89 days of incubation under the alternate "wet-dry" conditions, scanning electron microscopy showed that acid washing rendered biochars especially susceptible to aging with structural collapse and fragmentation, with less surface covering. Aging impeded the release of toxic substances in BC400 and BC600 with reduced toxicity to degrading microorganisms. Lindane degradation was somewhat stimulated by biochar nutrition but mainly inhibited by adsorption. Acid washing facilitated the release of toxic substances and additionally reduced lindane degradation. The variations in fatty acid saturation degree (SFA/UFA) in soils confirmed the microbial toxicity of 5% WBC400 > 5% BC400 > 5% BC600 > 5% WBC600. High-throughput DNA sequencing showed that biochar delayed the formation of dominant degrading microbial communities in soil. Lindane degradation was completed by joint Sphingomonas, Flaviolibacter, Parasegetibacter, Azoarcus, Bacillus and Anaerolinaea. These findings are helpful for better understanding the effect of biochar in soil on long-term degradation of persistent organic pollutants.
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Affiliation(s)
- Anfei He
- School of Environmental Science and Engineering, Suzhou University of Science and Technology, Suzhou, China
| | - Zilan Zhang
- School of Environmental Science and Engineering, Suzhou University of Science and Technology, Suzhou, China
| | - Qi Yu
- State Key Laboratory of Pollution Control and Resources Reuse, College of Environmental Science and Engineering, Tongji University, Shanghai 200092, China
| | - Kan Yang
- School of Environmental Science and Engineering, Suzhou University of Science and Technology, Suzhou, China
| | - G Daniel Sheng
- School of Environmental Science and Engineering, Suzhou University of Science and Technology, Suzhou, China.
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13
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Huang S, Sheng GD. Lindane uptake and translocation by rice seedlings (Oryza sativa L.) under different culture patterns and triggered biomass re-allocation. Chemosphere 2021; 262:127831. [PMID: 32791367 DOI: 10.1016/j.chemosphere.2020.127831] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [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: 05/16/2020] [Revised: 07/23/2020] [Accepted: 07/24/2020] [Indexed: 06/11/2023]
Abstract
The study was conducted to investigate the influence of the culture pattern on plant uptake and translocation of an organic chemical and the resultant acute response of plants, and to further reveal the interconnection. Plant exposure experiments were performed using a conventional rice seedling (Oryza sativa L. subsp. indica) under two kinds of culture patterns (viz., hydroponics and soil-based culture) with various culture matrices for a period of 7 days. The exposure concentration of lindane was ∼450 μg L-1 in the aqueous-phase matrices, and 200.1-756.0 μg kg-1 in the solid matrices. Lindane accumulation and its distribution in plant tissues were quantified, as well as the tissue biomass. The results showed the accumulation of lindane in all exposure groups were comparatively close over the period, confirming that the soil-bound lindane was scarcely available to plants. Similar trend of lindane uptake and translocation in seedlings was found among the groups under the same kind of cultivation pattern. In the hydroponic groups, lindane was mostly distributed in roots (about 60% at the end of exposure), whereas more lindane was translocated to shoots (approximate 70%) under the soil-based culture pattern. Allometric analysis demonstrated that the tissue part (root or shoot) with more lindane accumulation had a relatively higher growth rate over 7 days. Correspondingly, biomass allocation presented a slight trend of mutual proximity to lindane distribution. It was inferred that plants altered their allometric growth pattern to realize biomass re-allocation in response to the short-term lindane exposure, which could be considered as a plant defense strategy.
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Affiliation(s)
- Shidi Huang
- State Key Laboratory of Pollution Control and Resource Reuse, College of Environmental Science and Engineering, Tongji University, Shanghai, 200092, PR China
| | - G Daniel Sheng
- State Key Laboratory of Pollution Control and Resource Reuse, College of Environmental Science and Engineering, Tongji University, Shanghai, 200092, PR China.
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14
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Raimondo EE, Aparicio JD, Bigliardo AL, Fuentes MS, Benimeli CS. Enhanced bioremediation of lindane-contaminated soils through microbial bioaugmentation assisted by biostimulation with sugarcane filter cake. Ecotoxicol Environ Saf 2020; 190:110143. [PMID: 31918254 DOI: 10.1016/j.ecoenv.2019.110143] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [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: 08/07/2019] [Revised: 12/24/2019] [Accepted: 12/27/2019] [Indexed: 06/10/2023]
Abstract
Lindane is a toxic and persistent organochlorine pesticide, whose extensive use generated its accumulation in different environmental matrices. Bioremediation is a promising technology that can be used combining bioaugmentation and biostimulation processes to soil restoration. The aim of the present work was to determine the conditions of maximum lindane removal by bioaugmentation with an actinobacteria consortium and biostimulation with sugarcane filter cake (SCFC). The assays were carried out on lindane-contaminated silty loam (SLS), clayey (CS), and sandy (SS) soils. Through complete factorial designs, the effects of three abiotic factors (moisture content, proportion and size of SCFC particles) were evaluated on lindane removal. In addition, a response optimizer determined the optimal conditions for pesticide removal in bioaugmented and biostimulated soils, in the range of levels studied for each factor. In these conditions, bioaugmentation of biostimulated soils increased the pesticide removal (SLS: 61.4%, CS: 70.8%, SS: 86.3%), heterotrophic microbial counts, and soil enzymatic activities, and decreased lindane T1/2, regarding the non-bioaugmented biostimulated controls, after 14 days of assay. The values of these parameters confirmed the efficiency of the bioremediation process. Finally, the viability of the four strains was demonstrated at the end of the assay. The results indicate that the simultaneous application of bioaugmentation with the actinobacteria consortium and biostimulation with SCFC constitutes a promising tool for restoring soils contaminated with lindane, by using the optimal conditions obtained through the factorial designs.
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Affiliation(s)
- Enzo E Raimondo
- Planta Piloto de Procesos Industriales Microbiológicos (PROIMI-CONICET), Avenida Belgrano y Pasaje Caseros, 4000, Tucumán, Argentina; Facultad de Bioquímica, Química y Farmacia, Universidad Nacional de Tucumán, Ayacucho 491, 4000, Tucumán, Argentina
| | - Juan D Aparicio
- Planta Piloto de Procesos Industriales Microbiológicos (PROIMI-CONICET), Avenida Belgrano y Pasaje Caseros, 4000, Tucumán, Argentina; Facultad de Bioquímica, Química y Farmacia, Universidad Nacional de Tucumán, Ayacucho 491, 4000, Tucumán, Argentina
| | - Ana L Bigliardo
- Planta Piloto de Procesos Industriales Microbiológicos (PROIMI-CONICET), Avenida Belgrano y Pasaje Caseros, 4000, Tucumán, Argentina
| | - María S Fuentes
- Planta Piloto de Procesos Industriales Microbiológicos (PROIMI-CONICET), Avenida Belgrano y Pasaje Caseros, 4000, Tucumán, Argentina
| | - Claudia S Benimeli
- Planta Piloto de Procesos Industriales Microbiológicos (PROIMI-CONICET), Avenida Belgrano y Pasaje Caseros, 4000, Tucumán, Argentina; Facultad de Ciencias Exactas y Naturales, Universidad Nacional de Catamarca, Belgrano 300, 4700, Catamarca, Argentina.
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15
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Lian S, Nikolausz M, Nijenhuis I, da Rocha UN, Liu B, Corrêa FB, Saraiva JP, Richnow HH. Biotransformation of hexachlorocyclohexanes contaminated biomass for energetic utilization demonstrated in continuous anaerobic digestion system. J Hazard Mater 2020; 384:121448. [PMID: 31668499 DOI: 10.1016/j.jhazmat.2019.121448] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [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: 07/04/2019] [Revised: 09/19/2019] [Accepted: 10/09/2019] [Indexed: 06/10/2023]
Abstract
Lindane, the γ-hexachlorocyclohexane (HCH) isomer, was among the most used pesticides worldwide. Although it was banned in 2009, residues of Lindane and other HCH-isomers are still found with high concentrations in contaminated fields. For clean-up, phytoremediation combined with anaerobic digestion (AD) of contaminated biomass to produce biogas and fertilizer could be a promising strategy and was tested in two 15 L laboratory-scale continuous stirred tank reactors. During operation over one year by adding HCH isomers (γ, α and β) consecutively, no negative influence on conventional reactor parameters was observed. The γ- and α-HCH isomers were transformed to chlorobenzene and benzene, and transformation became faster along with time, while β-HCH was not removed. Genus Methanosaeta and order Clostridiales, showing significant enhancement on abundance with HCH addition, may be used as bioindicators for HCH dehalogenation in AD process. The potential for HCH degradation in AD system was restricted to axial Cl atoms of HCH and it showed slight enantioselective preference towards transformation of (+) α-HCH. Moreover, metabolite benzene was mineralized to CO2 and methane, deducing from tracer experiments with benzene-13C6. Overall, AD appears to be a feasible option for treatment of γ and α-HCHs contaminated biomass.
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Affiliation(s)
- Shujuan Lian
- Department of Isotope Biogeochemistry, Helmholtz Centre for Environmental Research - UFZ, Permoserstraße 15, 04318 Leipzig, Germany.
| | - Marcell Nikolausz
- Department of Environmental Microbiology, Helmholtz Centre for Environmental Research - UFZ, Permoserstraße 15, 04318 Leipzig, Germany.
| | - Ivonne Nijenhuis
- Department of Isotope Biogeochemistry, Helmholtz Centre for Environmental Research - UFZ, Permoserstraße 15, 04318 Leipzig, Germany.
| | - Ulisses Nunes da Rocha
- Department of Environmental Microbiology, Helmholtz Centre for Environmental Research - UFZ, Permoserstraße 15, 04318 Leipzig, Germany.
| | - Bin Liu
- Department of Environmental Microbiology, Helmholtz Centre for Environmental Research - UFZ, Permoserstraße 15, 04318 Leipzig, Germany.
| | - Felipe Borim Corrêa
- Department of Environmental Microbiology, Helmholtz Centre for Environmental Research - UFZ, Permoserstraße 15, 04318 Leipzig, Germany.
| | - João Pedro Saraiva
- Department of Environmental Microbiology, Helmholtz Centre for Environmental Research - UFZ, Permoserstraße 15, 04318 Leipzig, Germany.
| | - Hans Hermann Richnow
- Department of Isotope Biogeochemistry, Helmholtz Centre for Environmental Research - UFZ, Permoserstraße 15, 04318 Leipzig, Germany.
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16
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Carboneras MB, Villaseñor J, Fernández FJ, Rodrigo MA, Cañizares P. Selection of anodic material for the combined electrochemical-biological treatment of lindane polluted soil washing effluents. J Hazard Mater 2020; 384:121237. [PMID: 31581020 DOI: 10.1016/j.jhazmat.2019.121237] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [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: 01/31/2019] [Revised: 09/11/2019] [Accepted: 09/13/2019] [Indexed: 06/10/2023]
Abstract
This paper focuses on the removal of lindane from soil washing effluents (SWEs) using combined electrochemical -biological processes. In particular, it has been evaluated the influence of the anodic material used in the electrolysis of the SWE on the biodegradability and toxicity of the effluents. Four anode materials were tested: Boron Doped Diamond (BDD), Carbon Felt (CF), and Mixed Metal Oxides Anodes with iridium and ruthenium (MMO-Ir and MMO-Ru). These materials were tested at different current densities and electric current charges applied. Lindane, TOC, sulphate, and chlorine species concentrations were monitored during electrochemical experiments, showing important differences in their evolution during the treatment. In spite of reaching a good removal of lindane with all the materials tested, results showed that Boron Doped Diamond working at 15 mA cm-2 achieved the best biodegradability results in the electrolyzed effluents, because the ratio BOD5/COD increased from 0.2 to 0.5, followed by Carbon Felt anode. Regarding toxicity, Carbon Felt decreased toxicity by 80%. Opposite to what it was expected, MMO anodes did not achieve biodegradability improvement and they only showed reduction in toxicity at high electrical charges.
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Affiliation(s)
- María Belén Carboneras
- Chemical Engineering Department. Research Institute for Chemical and Environmental Technology (ITQUIMA). University of Castilla- La Mancha, 13071, Ciudad Real, Spain.
| | - José Villaseñor
- Chemical Engineering Department. Research Institute for Chemical and Environmental Technology (ITQUIMA). University of Castilla- La Mancha, 13071, Ciudad Real, Spain
| | - Francisco Jesús Fernández
- Chemical Engineering Department. Research Institute for Chemical and Environmental Technology (ITQUIMA). University of Castilla- La Mancha, 13071, Ciudad Real, Spain
| | - Manuel Andrés Rodrigo
- Chemical Engineering Department. Faculty of Chemical Sciences and Technology. University of Castilla- La Mancha, 13071, Ciudad Real, Spain
| | - Pablo Cañizares
- Chemical Engineering Department. Faculty of Chemical Sciences and Technology. University of Castilla- La Mancha, 13071, Ciudad Real, Spain
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17
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Raimondo EE, Saez JM, Aparicio JD, Fuentes MS, Benimeli CS. Coupling of bioaugmentation and biostimulation to improve lindane removal from different soil types. Chemosphere 2020; 238:124512. [PMID: 31430718 DOI: 10.1016/j.chemosphere.2019.124512] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [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: 06/05/2019] [Revised: 08/01/2019] [Accepted: 08/03/2019] [Indexed: 06/10/2023]
Abstract
Lindane is an organochlorine pesticide that, due to its persistence in the environment, is still detected in different matrices. Bioremediation using actinobacteria consortia proved to be promising for the restoration of contaminated soils. Another alternative to remove xenobiotics is to use agricultural residues, which stimulates microbial activity, increasing its capacity to degrade organic pollutants. The present work studies the coupling of sugarcane bagasse biostimulation and bioaugmentation with the actinobacteria consortium composed of Streptomyces sp. A2, A5, A11 and M7 on lindane removal in different soil types. In this sense, factorial designs with three factors (proportion and size of sugarcane bagasse particles, and moisture content) were employed. A response optimizer identified the combination of factors levels that jointly allowed obtaining the maximum lindane removal in the evaluated conditions. In the optimal conditions, the effect of the bioremediation process on soil microbiota was studied by evaluating different parameters. The highest lindane removal percentages were detected in biostimulated microcosms bioaugmented with the microbial consortium, which were accompanied by a decrease in lindane half-life respect to the controls. Also, the bioaugmentation of biostimulated microcosms increased the microbial counts and enhanced soil enzymatic activities, corroborating the bioremediation process efficiency. The survival of the four actinobacteria at the end of the assay confirmed the ability of all Streptomyces strains to colonize amended soils. Bioremediation by simultaneous application of biostimulation with sugarcane bagasse and bioaugmentation with the actinobacteria consortium, in the optimized conditions, represents an efficient strategy to restore lindane contaminated soils.
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Affiliation(s)
- Enzo E Raimondo
- Planta Piloto de Procesos Industriales Microbiológicos (PROIMI-CONICET), Avenida Belgrano y Pasaje Caseros, 4000, Tucumán, Argentina
| | - Juliana M Saez
- Planta Piloto de Procesos Industriales Microbiológicos (PROIMI-CONICET), Avenida Belgrano y Pasaje Caseros, 4000, Tucumán, Argentina
| | - Juan D Aparicio
- Planta Piloto de Procesos Industriales Microbiológicos (PROIMI-CONICET), Avenida Belgrano y Pasaje Caseros, 4000, Tucumán, Argentina; Facultad de Bioquímica, Química y Farmacia, Universidad Nacional de Tucumán, Ayacucho 491, 4000, Tucumán, Argentina
| | - María S Fuentes
- Planta Piloto de Procesos Industriales Microbiológicos (PROIMI-CONICET), Avenida Belgrano y Pasaje Caseros, 4000, Tucumán, Argentina
| | - Claudia S Benimeli
- Planta Piloto de Procesos Industriales Microbiológicos (PROIMI-CONICET), Avenida Belgrano y Pasaje Caseros, 4000, Tucumán, Argentina; Facultad de Ciencias Exactas y Naturales, Universidad Nacional de Catamarca, Belgrano 300, 4700, Catamarca, Argentina.
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18
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Qian Y, Chen K, Liu Y, Li J. Assessment of hexachlorcyclohexane biodegradation in contaminated soil by compound-specific stable isotope analysis. Environ Pollut 2019; 254:113008. [PMID: 31400667 DOI: 10.1016/j.envpol.2019.113008] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [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: 05/30/2019] [Revised: 08/01/2019] [Accepted: 08/02/2019] [Indexed: 06/10/2023]
Abstract
Compound-specific isotope analysis (CSIA) was firstly applied to explore the biodegradation of hexachlorcyclohexane (HCH) isomers in contaminated soil. Concentrations and compound-specific carbon isotope ratio profiles of HCH in different specific ex-situ pilot-scale contaminated soil mesocosms were determined. The addition of nutrients and Sphingobium spp. significantly enhanced the degradation of HCH in contaminated soils within 90 days. Isomer specific biodegradation of HCHs was observed with α- and γ-HCH being more degradable than β and δ-HCH. Stable carbon isotope fractionation of HCH was observed and the δ13C values shifted from -28.8 ± 0.3‰ to -24.8 ± 0.7‰ upon 87.3% removal, -27.9 ± 0.2‰ to -25.9 ± 0.5‰ upon 72.8% removal, -29.4 ± 0.3‰ to -19.9 ± 0.6‰ upon 95.8% removal, and -27.8 ± 0.5‰ to -23.6 ± 0.7‰ after 96.9% removal for α, β, γ, and δ-HCH, respectively. Furthermore, the enrichment factor ε for α, β, γ, and δ-HCH biodegradation in soil was obtained for the first time as -2.0‰, -1.5‰, -3.2‰, and -1.4‰, which could play a critical role in assessing in situ biodegradation of HCH isomers in field site soil. Results from ex-situ pilot-scale experiments clearly demonstrated that CSIA could be a promising tool to qualitatively and quantitatively evaluate in situ biodegradation of HCH in contaminated field site.
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Affiliation(s)
- Yiguang Qian
- Shenzhen Key Laboratory of Environmental Chemistry and Ecological Remediation, College of Chemistry and Environmental Engineering, Shenzhen University, Shenzhen 518060, China
| | - Ke Chen
- College of Resources and Environmental Science, South-Central University for Nationalities, Wuhan 430074, China
| | - Yaqing Liu
- UFZ, Helmholtz Centre for Environmental Research, Department of Isotope Biogeochemistry, Permoserstr.15, 04318 Leipzig, Germany
| | - Juying Li
- Shenzhen Key Laboratory of Environmental Chemistry and Ecological Remediation, College of Chemistry and Environmental Engineering, Shenzhen University, Shenzhen 518060, China.
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Aparicio JD, Garcia-Velasco N, Urionabarrenetxea E, Soto M, Álvarez A, Polti MA. Evaluation of the effectiveness of a bioremediation process in experimental soils polluted with chromium and lindane. Ecotoxicol Environ Saf 2019; 181:255-263. [PMID: 31200198 DOI: 10.1016/j.ecoenv.2019.06.019] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [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: 04/12/2019] [Revised: 06/04/2019] [Accepted: 06/05/2019] [Indexed: 06/09/2023]
Abstract
Bioremediation using actinobacterium consortia proved to be a promising alternative for the purification of co-contaminated environments. In this sense, the quadruple consortium composed of Streptomyces sp. M7, MC1, A5, and Amycolatopsis tucumanensis AB0 has been able to remove significant levels of Cr(VI) and lindane from anthropogenically contaminated soils. However, the effectiveness of the bioremediation process could not be evaluated only by analytical monitoring, which is complex mainly due to the characteristics of the matrix, producing non-quantitative analyte recoveries, or interferences in the detection stage and quantification. However, the effectiveness of the bioremediation process cannot be evaluated only through analytical monitoring, which is complex due mainly to the characteristics of the matrix, to the recoveries of non-quantitative analytes or to interferences in the detection and quantification stage. For this reason, it is essential to have tools of ecological relevance to assess the biological impact of pollutants on the environment. In this context, the objective of this work was to establish the appropriate bioassays to evaluate the effectiveness of a bioremediation process of co-contaminated soils. For this, five model species were studied: four plant species (Lactuca sativa, Raphanus sativus, Lycopersicon esculentum, and Zea mays) and one animal species (Eisenia fetida). On plant species, the biomarkers evaluated were inhibition of germination (IG) and the length of hypocotyls/steam and radicles/roots of the seedling. While on E. fetida, mortality (M), weight lost, coelomocyte concentration and cell viability were tested. These bioindicators and the battery of biomarkers quantified in them showed a different level of sensitivity, from maximum to minimum: E. fetida > L. esculentum > L. sativa > R. sativus ≫>Z. mays. Therefore, E. fetida and L. esculentum and their respective biomarkers were selected to evaluate the effectiveness of the bioremediation process due to the capability of assessing the effect on the flora and the fauna of the soil, respectively. The joint application of these bioindicators in a field scale bioremediation process is a feasible tool to demonstrate the recovery of the quality and health of the soil.
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Affiliation(s)
- Juan Daniel Aparicio
- Planta Piloto de Procesos Industriales Microbiológicos (PROIMI), CONICET, Av. Belgrano y Pasaje Caseros, 4000, Tucumán, Argentina; Facultad de Bioquímica, Química y Farmacia, Universidad Nacional de Tucumán, Ayacucho 491, 4000, Tucumán, Argentina
| | - Nerea Garcia-Velasco
- Faculty of Science and Technology and Research Centre for Experimental Marine Biology and Biotechnology, University of the Basque Country, Bilbao, E-48080, Basque Country, Spain
| | - Erik Urionabarrenetxea
- Faculty of Science and Technology and Research Centre for Experimental Marine Biology and Biotechnology, University of the Basque Country, Bilbao, E-48080, Basque Country, Spain
| | - Manu Soto
- Faculty of Science and Technology and Research Centre for Experimental Marine Biology and Biotechnology, University of the Basque Country, Bilbao, E-48080, Basque Country, Spain
| | - Analía Álvarez
- Planta Piloto de Procesos Industriales Microbiológicos (PROIMI), CONICET, Av. Belgrano y Pasaje Caseros, 4000, Tucumán, Argentina; Facultad de Ciencias Naturales e Instituto Miguel Lillo, Universidad Nacional de Tucumán. Miguel Lillo 205, 4000, Tucumán, Argentina
| | - Marta Alejandra Polti
- Planta Piloto de Procesos Industriales Microbiológicos (PROIMI), CONICET, Av. Belgrano y Pasaje Caseros, 4000, Tucumán, Argentina; Facultad de Ciencias Naturales e Instituto Miguel Lillo, Universidad Nacional de Tucumán. Miguel Lillo 205, 4000, Tucumán, Argentina.
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20
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Nagata Y, Kato H, Ohtsubo Y, Tsuda M. Lessons from the genomes of lindane-degrading sphingomonads. Environ Microbiol Rep 2019; 11:630-644. [PMID: 31063253 DOI: 10.1111/1758-2229.12762] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/31/2019] [Revised: 04/29/2019] [Accepted: 05/02/2019] [Indexed: 05/27/2023]
Abstract
Bacterial strains capable of degrading man-made xenobiotic compounds are good materials to study bacterial evolution towards new metabolic functions. Lindane (γ-hexachlorocyclohexane, γ-HCH, or γ-BHC) is an especially good target compound for the purpose, because it is relatively recalcitrant but can be degraded by a limited range of bacterial strains. A comparison of the complete genome sequences of lindane-degrading sphingomonad strains clearly demonstrated that (i) lindane-degrading strains emerged from a number of different ancestral hosts that have recruited lin genes encoding enzymes that are able to channel lindane to central metabolites, (ii) in sphingomonads lin genes have been acquired by horizontal gene transfer mediated by different plasmids and in which IS6100 plays a role in recruitment and distribution of genes, and (iii) IS6100 plays a role in dynamic genome rearrangements providing genetic diversity to different strains and ability to evolve to other states. Lindane-degrading bacteria whose genomes change so easily and quickly are also fascinating starting materials for tracing the bacterial evolution process experimentally in a relatively short time period. As the origin of the specific lin genes remains a mystery, such genes will be useful probes for exploring the cryptic 'gene pool' available to bacteria.
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Affiliation(s)
- Yuji Nagata
- Graduate School of Life Sciences, Tohoku University, 2-1-1 Katahira, Sendai, 980-8577, Japan
| | - Hiromi Kato
- Graduate School of Life Sciences, Tohoku University, 2-1-1 Katahira, Sendai, 980-8577, Japan
| | - Yoshiyuki Ohtsubo
- Graduate School of Life Sciences, Tohoku University, 2-1-1 Katahira, Sendai, 980-8577, Japan
| | - Masataka Tsuda
- Graduate School of Life Sciences, Tohoku University, 2-1-1 Katahira, Sendai, 980-8577, Japan
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21
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Kaminski MA, Sobczak A, Dziembowski A, Lipinski L. Genomic Analysis of γ-Hexachlorocyclohexane-Degrading Sphingopyxis lindanitolerans WS5A3p Strain in the Context of the Pangenome of Sphingopyxis. Genes (Basel) 2019; 10:E688. [PMID: 31500174 PMCID: PMC6771000 DOI: 10.3390/genes10090688] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2019] [Revised: 09/02/2019] [Accepted: 09/02/2019] [Indexed: 11/29/2022] Open
Abstract
Sphingopyxis inhabit diverse environmental niches, including marine, freshwater, oceans, soil and anthropogenic sites. The genus includes 20 phylogenetically distinct, valid species, but only a few with a sequenced genome. In this work, we analyzed the nearly complete genome of the newly described species, Sphingopyxislindanitolerans, and compared it to the other available Sphingopyxis genomes. The genome included 4.3 Mbp in total and consists of a circular chromosome, and two putative plasmids. Among the identified set of lin genes responsible for γ-hexachlorocyclohexane pesticide degradation, we discovered a gene coding for a new isoform of the LinA protein. The significant potential of this species in the remediation of contaminated soil is also correlated with the fact that its genome encodes a higher number of enzymes potentially involved in aromatic compound degradation than for most other Sphingopyxis strains. Additional analysis of 44 Sphingopyxis representatives provides insights into the pangenome of Sphingopyxis and revealed a core of 734 protein clusters and between four and 1667 unique proteins per genome.
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Affiliation(s)
- Michal A Kaminski
- Institute of Biochemistry and Biophysics, Polish Academy of Sciences, Pawinskiego 5a, 02-106 Warsaw, Poland
| | - Adam Sobczak
- Institute of Biochemistry and Biophysics, Polish Academy of Sciences, Pawinskiego 5a, 02-106 Warsaw, Poland
- Institute of Genetics and Biotechnology, Faculty of Biology, University of Warsaw, Pawinskiego 5a, 02-106 Warsaw, Poland
| | - Andrzej Dziembowski
- Institute of Biochemistry and Biophysics, Polish Academy of Sciences, Pawinskiego 5a, 02-106 Warsaw, Poland
- Institute of Genetics and Biotechnology, Faculty of Biology, University of Warsaw, Pawinskiego 5a, 02-106 Warsaw, Poland
| | - Leszek Lipinski
- Institute of Biochemistry and Biophysics, Polish Academy of Sciences, Pawinskiego 5a, 02-106 Warsaw, Poland.
- Institute of Genetics and Biotechnology, Faculty of Biology, University of Warsaw, Pawinskiego 5a, 02-106 Warsaw, Poland.
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22
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Russo F, Ceci A, Maggi O, Siciliano A, Guida M, Petrangeli Papini M, Černík M, Persiani AM. Understanding fungal potential in the mitigation of contaminated areas in the Czech Republic: tolerance, biotransformation of hexachlorocyclohexane (HCH) and oxidative stress analysis. Environ Sci Pollut Res Int 2019; 26:24445-24461. [PMID: 31228071 DOI: 10.1007/s11356-019-05679-w] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [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: 07/03/2018] [Accepted: 06/04/2019] [Indexed: 06/09/2023]
Abstract
The study of the soil microbial community represents an important step in better understanding the environmental context. Therefore, biological characterisation and physicochemical integration are keys when defining contaminated sites. Fungi play a fundamental role in the soil, by providing and supporting ecological services for ecosystems and human wellbeing. In this research, 52 soil fungal taxa were isolated from in situ pilot reactors installed to a contaminated site in Czech Republic with a high concentration of hexachlorocyclohexane (HCH). Among the identified isolates, 12 strains were selected to evaluate their tolerance to different isomers of HCH by using specific indices (Rt:Rc; T.I.) and to test their potential in xenobiotic biotransformation. Most of the selected taxa was not significantly affected by exposure to HCH, underlining the elevated tolerance of all the tested fungal taxa, and different metabolic intermediates of HCH dechlorination were observed. The oxidative stress responses to HCH for two selected species, Penicillium simplicissimum and Trichoderma harzianum, were investigated in order to explore their toxic responses and to evaluate their potential functioning in bioremediation of contaminated environments. This research suggests that the isolated fungal species may provide opportunities for new eco-friendly, integrated and cost-effective solutions for environmental management and remediation, considering their efficient adaptation to stressful conditions.
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Affiliation(s)
- Fabiana Russo
- Department of Environmental Biology, Sapienza University of Rome, Piazzale A. Moro 5, 00185, Rome, Italy.
| | - Andrea Ceci
- Department of Environmental Biology, Sapienza University of Rome, Piazzale A. Moro 5, 00185, Rome, Italy
| | - Oriana Maggi
- Department of Environmental Biology, Sapienza University of Rome, Piazzale A. Moro 5, 00185, Rome, Italy
| | - Antonietta Siciliano
- Department of Biology, University of Naples Federico II, Via Cinthia, 80126, Naples, Italy
| | - Marco Guida
- Department of Biology, University of Naples Federico II, Via Cinthia, 80126, Naples, Italy
| | - Marco Petrangeli Papini
- Department of Chemistry, Sapienza University of Rome, Piazzale Aldo Moro 5, 00185, Rome, Italy
| | - Miroslav Černík
- Department of Nanomaterials in Natural Sciences, Institute for Nanomaterials, Advanced Technologies and Innovation, Technical University of Liberec, Studentská 1402/2, 461 17, Liberec 1, Czech Republic
| | - Anna Maria Persiani
- Department of Environmental Biology, Sapienza University of Rome, Piazzale A. Moro 5, 00185, Rome, Italy
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23
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Atmaca E, Das YK, Yavuz O, Aksoy A. An evaluation of the levels of organochlorine compounds (OCPs and PCBs) in cultured freshwater and wild sea fish eggs as an exposure biomarker for environmental contamination. Environ Sci Pollut Res Int 2019; 26:7005-7012. [PMID: 30648234 DOI: 10.1007/s11356-019-04207-0] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [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: 10/08/2018] [Accepted: 01/08/2019] [Indexed: 06/09/2023]
Abstract
In this study, the eggs of 30 wild Black Sea whiting (Merlangius merlangus euxinus, Nordmann, 1840) and 30 farmed freshwater rainbow trout (Oncorhynchus mykiss, Walbaum, 1792) collected from Samsun Province in Turkey were analyzed to determine the level of contamination by nine organochlorine pesticides (OCPs), namely α-hexachlorocyclohexane (α-HCH), β-HCH, γ-HCH (lindane), hexachlorobenzene (HCB), aldrin, 2,4'-dichlorodiphenyltrichloroethane (DDT), 4,4'-DDT, 2,4'-dichlorodiphenyldichloroethylene (DDE), 4,4'-DDE, and 15 polychlorinated biphenyls (PCBs) (PCB-28, -70, -74, -81, -99, -101, -118, -138, -153, -156, -170, -180, -183, -187, and -208), and their potential use as biomarkers to monitor levels of environmental contamination. OCPs and PCBs in the fat of fish eggs were extracted cryogenically and their concentrations were determined with a gas chromatography-electron capture detector (GC-ECD). The whiting eggs showed high OCP and PCB levels compared to the rainbow trout eggs. The median ∑ DDT values for whiting and rainbow trout eggs were 1601.62 ng g-1 fat (range 824.87-5049.81) and 406.49 ng g-1 fat (range 199.88-588.82); median ∑Indicator PCBs were 1264.24 ng g-1 fat (range 520.05-6140.32) and 82.11 ng g-1 fat (range 2.85-215.97); and median ∑ HCHs were 155.66 ng g-1 fat (range 35.45-330.40) and 13.48 ng g-1 fat (range 4.44-66.44), respectively. In the whiting eggs, the ∑Indicator PCB level was above the maximum residue limit (MRL) of 200 ng g-1 fat stated in the European Commission Regulation (EC) and Turkish Food Codex (TFC). In addition, there was a significant difference between the contamination levels of the eggs of the two species. In conclusion, it appears that fish eggs can serve as a valuable biomarker for the level of contamination of persistent organochlorine contaminants in different aquatic environments.
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Affiliation(s)
- Enes Atmaca
- Department of Pharmacology and Toxicology, Faculty of Veterinary Medicine, Ondokuz Mayis University, 55139, Samsun, Turkey.
| | - Yavuz Kursad Das
- Department of Pharmacology and Toxicology, Faculty of Veterinary Medicine, Ondokuz Mayis University, 55139, Samsun, Turkey
| | - Oguzhan Yavuz
- Department of Pharmacology and Toxicology, Faculty of Veterinary Medicine, Ondokuz Mayis University, 55139, Samsun, Turkey
| | - Abdurrahman Aksoy
- Department of Pharmacology and Toxicology, Faculty of Veterinary Medicine, Ondokuz Mayis University, 55139, Samsun, Turkey
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24
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Vuković G, Herceg Romanić S, Babić Ž, Mustać B, Štrbac M, Deljanin I, Antanasijević D. Persistent organic pollutants (POPs) in edible fish species from different fishing zones of Croatian Adriatic. Mar Pollut Bull 2018; 137:71-80. [PMID: 30503488 DOI: 10.1016/j.marpolbul.2018.10.014] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [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: 07/14/2018] [Revised: 09/28/2018] [Accepted: 10/04/2018] [Indexed: 06/09/2023]
Abstract
High-risk contaminants, OCPs and PCBs, were investigated in marine fish from the Adriatic Sea, from which retail fish in Croatia is commonly sourced. The pollutant levels in sardine, horse and chub mackerel, anchovy and round sardinella were analysed based on a two-year sampling and the joint use of generally accepted statistics and advanced clustering methods - self-organizing maps (SOM) and decision tree analysis (DT). Both the SOM and DT suggested fish mass and length rather than fat along with α-HCH, p,p'-DDT, PCB-74 and PCB-189 to cause variable pollutant uptake among species. Main distinctions of sardines occur in coastal and off coast regions rather than in a particular fishing zone and they are associated with both fish characteristics, levels of γ-HCH and PCBs: -60, -105, -150, -170, and -189. The results, mutually compatible or in agreement, could be useful for the design and implementation of the abatement strategies of fish pollution.
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Affiliation(s)
- Gordana Vuković
- Institute of Physics Belgrade, a National Institute of the Republic of Serbia, University of Belgrade, Pregrevica 118, 11080 Belgrade, Serbia.
| | - Snježana Herceg Romanić
- Institute for Medical Research and Occupational Health, Ksaverska cesta 2, PO Box 291, 10001 Zagreb, Croatia.
| | - Željka Babić
- Institute for Medical Research and Occupational Health, Ksaverska cesta 2, PO Box 291, 10001 Zagreb, Croatia.
| | - Bosiljka Mustać
- Department of ecology, agronomy and aquaculture, University of Zadar, Trg Kneza Višeslava 9, 23000 Zadar, Croatia.
| | - Mirna Štrbac
- Institute for Medical Research and Occupational Health, Ksaverska cesta 2, PO Box 291, 10001 Zagreb, Croatia
| | - Isidora Deljanin
- Innovation Center of the Faculty of Technology and Metallurgy, University of Belgrade, Karnegijeva 4, 11120 Belgrade, Serbia.
| | - Davor Antanasijević
- Innovation Center of the Faculty of Technology and Metallurgy, University of Belgrade, Karnegijeva 4, 11120 Belgrade, Serbia.
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25
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Sineli PE, Herrera HM, Cuozzo SA, Dávila Costa JS. Quantitative proteomic and transcriptional analyses reveal degradation pathway of γ-hexachlorocyclohexane and the metabolic context in the actinobacterium Streptomyces sp. M7. Chemosphere 2018; 211:1025-1034. [PMID: 30223317 DOI: 10.1016/j.chemosphere.2018.08.035] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [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: 06/15/2018] [Revised: 08/07/2018] [Accepted: 08/08/2018] [Indexed: 06/08/2023]
Abstract
Highly contaminated γ-hexachlorocyclohexane (lindane) areas were reported worldwide. Low aqueous solubility and high hydrophobicity make lindane particularly resistant to microbial degradation. Physiological and genetic Streptomyces features make this genus more appropriate for bioremediation compared with others. Complete degradation of lindane was only proposed in the genus Sphingobium although the metabolic context of the degradation was not considered. Streptomyces sp.M7 has demonstrated ability to remove lindane from culture media and soils. In this study, we used MS-based label-free quantitative proteomic, RT-qPCR and exhaustive bioinformatic analysis to understand lindane degradation and its metabolic context in Streptomyces sp. M7. We identified the proteins involved in the up-stream degradation pathway. In addition, results demonstrated that mineralization of lindane is feasible since proteins from an unusual down-stream degradation pathway were also identified. Degradative steps were supported by an active catabolism that supplied energy and reducing equivalents in the form of NADPH. To our knowledge, this is the first study in which degradation steps of an organochlorine compound and metabolic context are elucidate in a biotechnological genus as Streptomyces. These results serve as basement to study other degradative actinobacteria and to improve the degradation processes of Streptomyces sp. M7.
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Affiliation(s)
- Pedro E Sineli
- Planta Piloto de Procesos Industriales Microbiológicos (PROIMI-CONICET), Tucumán, Argentina
| | - Hector M Herrera
- Planta Piloto de Procesos Industriales Microbiológicos (PROIMI-CONICET), Tucumán, Argentina
| | - Sergio A Cuozzo
- Planta Piloto de Procesos Industriales Microbiológicos (PROIMI-CONICET), Tucumán, Argentina; Facultad de Ciencias Naturales e Instituto Miguel Lillo, Universidad Nacional de Tucumán, Tucumán, Argentina
| | - José S Dávila Costa
- Planta Piloto de Procesos Industriales Microbiológicos (PROIMI-CONICET), Tucumán, Argentina.
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26
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Fu L, Lu X, Tan J, Zhang H, Zhang Y, Wang S, Chen J. Bioaccumulation and human health risks of OCPs and PCBs in freshwater products of Northeast China. Environ Pollut 2018; 242:1527-1534. [PMID: 30144726 DOI: 10.1016/j.envpol.2018.08.046] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [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: 05/10/2018] [Revised: 08/15/2018] [Accepted: 08/16/2018] [Indexed: 06/08/2023]
Abstract
The levels and spatial distribution of organochlorine pesticides (OCPs) and polychlorinated biphenyls (PCBs) in freshwater products from Northeast China were investigated by gas chromatography coupled to isotope dilution high-resolution mass spectrometry. All samples were on-spot sampled from main production regions of freshwater products in Northeast China, and these samples were used to systematically assess the potential health risks of OCPs and PCBs associated with consumption of these fishery products. Dichlorodiphenyltrichloroethanes (DDTs), hexachlorocyclohexane (HCHs), hexachlorobenzene (HCB) and PCBs were the major pollutants with 100% detection rates, and their levels ranged from 0.086 to 58, 0.038-3.3, 0.093-4.5 and 0.032-1.4 ng g-1 wet weight, respectively. The estimated dietary intakes of these contaminants were all below their corresponding acceptable daily intakes. Significant regional differences in the levels of OCPs and PCBs (P ≦ 0.001) were found in samples from Liaoning and Inner Mongolia. The results showed that the concentrations of targeted contaminants in aquatic products had species-specific characteristics, and the levels of targeted pollutants in Oncorhynchus mykiss and Eriocheir sienesis were significantly higher than those in other aquatic product species. Advisories on ten species of aquatic products suggested that consumption of Eriocheir sinensis, Oncorhynchus mykiss and Cyprinus carpio at a rate exceeding 15 meals per month would pose a cancer risk. A health risk assessment indicated that exposure to these pollutants through freshwater products consumption would cause a non-ignorable potential carcinogenic risk to humans.
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Affiliation(s)
- Lei Fu
- CAS Key Laboratory of Separation Science for Analytical Chemistry, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, 116023, China; University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Xianbo Lu
- CAS Key Laboratory of Separation Science for Analytical Chemistry, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, 116023, China.
| | - Jun Tan
- CAS Key Laboratory of Separation Science for Analytical Chemistry, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, 116023, China
| | - Haijun Zhang
- CAS Key Laboratory of Separation Science for Analytical Chemistry, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, 116023, China
| | - Yichi Zhang
- CAS Key Laboratory of Separation Science for Analytical Chemistry, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, 116023, China
| | - Shuqiu Wang
- CAS Key Laboratory of Separation Science for Analytical Chemistry, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, 116023, China
| | - Jiping Chen
- CAS Key Laboratory of Separation Science for Analytical Chemistry, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, 116023, China
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27
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Song S, Ma X, Pan M, Tong L, Tian Q. Excretion kinetics of three dominant organochlorine compounds in human milk within the first 6 months postpartum. Environ Monit Assess 2018; 190:457. [PMID: 29995278 DOI: 10.1007/s10661-018-6850-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [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: 02/26/2018] [Accepted: 07/03/2018] [Indexed: 06/08/2023]
Abstract
Breastfeeding is a specific and important way for women to eliminate harmful substances accumulated in body. Hexachlorobenzene (HCB), β-hexachlorocyclohexane (β-HCH), and 2,2-bis(p-chlorophenyl)-1,1-dichloroethene (p,p'-DDE) are dominant organochlorine compounds(OCCs) and persistent organic pollutants (POPs) accumulated in human being. Although a 6-month breastfeeding was suggested by the World Health Organization (WHO), the excretion characteristics of OCCs in human milk during the first 6-month lactation remain controversial. The main purpose of this study was to continuously monitor the three dominant OCC concentrations and reveal their elimination characteristic in human milk within the first 6-month lactation. To do that, with one sample per month, during their first 6-month lactation, human milk samples were continuously collected from 40 mothers after their first birth. The result showed that the concentrations of the three OCCs in human milk during the lactation continuously decreased from 51.7 to 39.9 μg/kg milk lipids for HCB, from 136.5 to 84.8 μg/kg milk lipids for β-HCH, and from 307.3 to 192 μg/kg milk lipids, respectively. The excretion kinetics of each compound in milk lipids fitted zero-order kinetics during the 6-month lactation. The excretion rate of the three OCCs was approximately 3% per month for HCB and 7% per month for the other two compounds during the lactation, with tdec 1/2 of 13 months for HCB, 7.5 months for β-HCH, and 8 months for p,p'-DDE. The excretion rate of the target compounds depended on initial deposited levels, compound properties, and exposure or input source.
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Affiliation(s)
- Shuling Song
- National Research Center for Geoanalysis (NRCGA), CAGS, Beijing, 100037, China.
| | - Xiaodong Ma
- College of Science, China Agricultural University, Beijing, 100193, China
| | - Meng Pan
- National Research Center for Geoanalysis (NRCGA), CAGS, Beijing, 100037, China
| | - Ling Tong
- National Research Center for Geoanalysis (NRCGA), CAGS, Beijing, 100037, China
| | - Qin Tian
- National Research Center for Geoanalysis (NRCGA), CAGS, Beijing, 100037, China
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28
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Di S, Liu R, Chen L, Diao J, Zhou Z. Selective bioaccumulation, biomagnification, and dissipation of hexachlorocyclohexane isomers in a freshwater food chain. Environ Sci Pollut Res Int 2018; 25:18752-18761. [PMID: 29713971 DOI: 10.1007/s11356-018-2044-9] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [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: 03/12/2017] [Accepted: 04/16/2018] [Indexed: 06/08/2023]
Abstract
Hexachlorocyclohexane isomers (HCHs) are persistent organic pollutants (POPs), having potential risks to humans and ecosystem. This work evaluated the propensity of organisms to accumulate, eliminate, and transfer HCHs along the food chain (Tubifex tubifex and common carp (Cyprinus carpio)). The accumulation of HCHs from water by worms and carp was observed, and the concentrations increased with exposure time. After 8 days, the HCH concentrations in organisms remained stable. The accumulation factor (AF) values of HCHs in T. tubifex were higher than those in carp, indicating that the bioaccumulation abilities of HCHs in T. tubifex were higher than those in carp. The contaminated worms as a dietary source in the food chain led to significantly higher bioaccumulation in carp. The biomagnification factor (BMF) values of HCH isomers were all greater than 1. In the dissipation experiments, the elimination was fast and the half-lives were shorter than 2.5 days. The enantioselective accumulation and dissipation of α-HCH enantiomers were observed in worms and carp (food chain), and the enantiomeric differences should be taken into consideration in the study of contaminants risk assessment. The results on trophic transfer of HCHs in a freshwater food chain should be helpful for better understanding the fate, transport, and transfer of HCHs in freshwater environments.
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Affiliation(s)
- Shanshan Di
- Institute of Quality and Standard of Agro-Products, Zhejiang Academy of Agricultural Sciences, Hangzhou, 310021, China
- Agricultural Ministry Key Laboratory for Pesticide Residue Detection, Hangzhou, 310021, China
- Key Laboratory of Detection for Pesticide Residues and Control of Zhejiang, Hangzhou, 310021, China
| | - Ruiquan Liu
- Department of Applied Chemistry, China Agricultural University, Yuanmingyuan West Road 2, Beijing, 100193, China
| | - Li Chen
- Department of Applied Chemistry, China Agricultural University, Yuanmingyuan West Road 2, Beijing, 100193, China
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, Department of Applied Chemistry, China Agricultural University, Yuanmingyuan west road 2, Beijing, 100193, People's Republic of China
| | - Jinling Diao
- Department of Applied Chemistry, China Agricultural University, Yuanmingyuan West Road 2, Beijing, 100193, China
| | - Zhiqiang Zhou
- Department of Applied Chemistry, China Agricultural University, Yuanmingyuan West Road 2, Beijing, 100193, China.
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, Department of Applied Chemistry, China Agricultural University, Yuanmingyuan west road 2, Beijing, 100193, People's Republic of China.
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29
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Zhang X, Wu X, Lei B, Jing Y, Jiang Z, Zhang X, Fang X, Yu Y. Transplacental transfer characteristics of organochlorine pesticides in paired maternal and cord sera, and placentas and possible influencing factors. Environ Pollut 2018; 233:446-454. [PMID: 29100182 DOI: 10.1016/j.envpol.2017.10.075] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [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: 08/26/2017] [Revised: 10/11/2017] [Accepted: 10/18/2017] [Indexed: 06/07/2023]
Abstract
Organochlorine pesticides (OCPs), including dichlorodiphenyltrichloroethane (DDT) and its metabolites [dichlorodiphenyldichloroethylene (DDE) and dichlorodiphenyldichloroethane], hexachlorocyclohexanes (HCHs), and hexachlorobenzene (HCB), are widely detected in humans despite the considerable decline in environmental concentrations. To understand the placental transfer of OCPs and the possible maternal influence on them, we measured the concentrations of DDTs, HCHs, and HCB in 102 paired samples of maternal and cord sera, and placentas collected in Shanghai, China. The median concentrations of DDTs and HCHs were the highest in maternal sera (601, 188 ng g-1 lipid), followed by umbilical cord sera (389, 131 ng g-1 lipid), and placentas (65, 37 ng g-1 lipid). 4,4'-DDE, β-HCH, and HCB were the predominant contaminants in the three matrices. The ubiquitous existence of OCPs, and the significant concentration relationships of DDTs, HCHs, and OCPs in the three matrices suggested placental transfer from mother to fetus. The lipid-based concentration ratios of 4,4'-DDE, β-HCH, and HCB in umbilical cord serum to those in maternal serum (F/M), and ratios of placenta to maternal serum (P/M) ranged from 0.66 to 1.01, and 0.12 to 0.25, respectively. Maternal variables affected the levels of fetal contamination. For primiparous women, significant correlations between maternal age and maternal HCHs, and between pre-pregnancy body mass index (BMI) and maternal HCHs were found. The negative effect of parity, and the positive effect of food consumption on maternal OCP concentrations were also observed, although there were no significant differences. The possible influence of parity on F/M and P/M of 4,4'-DDE suggested borderline significant differences between primiparous and multiparous women. Also, slight group differences were observed between elder and younger women, and between overweight and normal/underweight women. Parity seems to have a potential influence on transfer ratios of some OCP pollutants.
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Affiliation(s)
- Xiaolan Zhang
- Institute of Environmental Pollution and Health, School of Environmental and Chemical Engineering, Shanghai University, Shanghai 200444, PR China
| | - Xia Wu
- Institute of Environmental Pollution and Health, School of Environmental and Chemical Engineering, Shanghai University, Shanghai 200444, PR China
| | - Bingli Lei
- Institute of Environmental Pollution and Health, School of Environmental and Chemical Engineering, Shanghai University, Shanghai 200444, PR China
| | - Ye Jing
- Institute of Environmental Pollution and Health, School of Environmental and Chemical Engineering, Shanghai University, Shanghai 200444, PR China
| | - Zi'an Jiang
- Institute of Environmental Pollution and Health, School of Environmental and Chemical Engineering, Shanghai University, Shanghai 200444, PR China
| | - Xinyu Zhang
- Institute of Environmental Pollution and Health, School of Environmental and Chemical Engineering, Shanghai University, Shanghai 200444, PR China
| | - Xiangming Fang
- Shanghai Huangpu Maternity & Infant Health Hospital, Shanghai 200020, PR China
| | - Yingxin Yu
- Institute of Environmental Pollution and Health, School of Environmental and Chemical Engineering, Shanghai University, Shanghai 200444, PR China.
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Strobel A, Schmid P, Burkhardt-Holm P, Segner H, Zennegg M. Persistent organic pollutants in red- and white-blooded High-Antarctic notothenioid fish from the remote Weddell Sea. Chemosphere 2018; 193:213-222. [PMID: 29136567 DOI: 10.1016/j.chemosphere.2017.11.020] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [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: 08/01/2017] [Revised: 11/01/2017] [Accepted: 11/06/2017] [Indexed: 06/07/2023]
Abstract
It has been suggested that High-Antarctic waters, despite their remoteness from human activities, are impacted by anthropogenic pollution, and that the local biota are accumulating the contaminants. At present, no data exist on persistent organic pollutant (POP) body burdens for notothenioid fish inhabiting the High-Antarctic Weddell Sea. We determined the pollutant load in white muscle tissue of red- and white-blooded notothenoids from the Weddell Sea (Trematomus loennbergii and Chionodraco hamatus, respectively), and compared them to our previous measurements of POPs in Low-Antarctic notothenioids. Analytes included various organochlorine pesticides (OCPs), polychlorinated biphenyls (indicator (i) PCBs, dioxine-like (dl) PCBs) and polybrominated diphenyl ethers (PBDEs). The analytical concentrations were converted into 2,3,7,8-TCDD toxic equivalents (TEQs). Compared to T. loennbergii, C. hamatus had lower levels of β-HCH (0.45 vs. 4.5 ng g-1 lipid weight), and Σ iPCBs (30 vs. 39 ng g-1 lipid weight), as well as lower levels of Σ PBDEs (131 vs. 261 ng g-1 fresh weight). POP body burdens and TEQs were mostly similar to those of Low-Antarctic notothenioids analysed previously, and not related to the trophic positions of the species. The variations in POP levels between and within High- and Low-Antarctic notothenioids only marginally corresponded to sampling site, ecological differences or trophic levels of the species, and might rather be related to metabolism or age effects. The present findings suggest that fishes of High-Antarctic waters, although this area is more remote and less influenced by local human activities, do not show lower POP body burdens than fishes from Low-Antarctic waters.
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Affiliation(s)
- Anneli Strobel
- University of Basel, Department of Environmental Sciences, Programme Man-Society-Environment MGU, Vesalgasse 1, CH-4051, Basel, Switzerland.
| | - Peter Schmid
- Empa, Swiss Federal Laboratories for Materials Science and Technology, Laboratory for Advanced Analytical Technologies, Überlandstrasse 129, CH-8600, Dübendorf, Switzerland.
| | - Patricia Burkhardt-Holm
- University of Basel, Department of Environmental Sciences, Programme Man-Society-Environment MGU, Vesalgasse 1, CH-4051, Basel, Switzerland; Department of Biological Sciences, University of Alberta, Edmonton, AB, Canada.
| | - Helmut Segner
- University of Bern, Vetsuisse Faculty, Centre for Fish and Wildlife Health, Länggassstrasse 12, CH-3012, Bern, Switzerland.
| | - Markus Zennegg
- Empa, Swiss Federal Laboratories for Materials Science and Technology, Laboratory for Advanced Analytical Technologies, Überlandstrasse 129, CH-8600, Dübendorf, Switzerland.
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Heeb NV, Grubelnik A, Geueke B, Kohler HPE, Lienemann P. Biotransformation of hexabromocyclododecanes with hexachlorocyclohexane-transforming Sphingobium chinhatense strain IP26. Chemosphere 2017; 182:491-500. [PMID: 28521164 DOI: 10.1016/j.chemosphere.2017.05.047] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [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: 11/30/2016] [Revised: 05/05/2017] [Accepted: 05/08/2017] [Indexed: 06/07/2023]
Abstract
Bacterial evolution has resulted in the appearance of several Sphingomonadacea strains that gained the ability to metabolize hexachlorocyclohexanes (HCHs). HCHs have been widely used as pesticides but were banned under the Stockholm Convention on persistent organic pollutants (POPs) in 2009. Here we present evidence for bacterial transformation reactions of hexabromocyclododecanes (HBCDs), which are structurally related to HCHs. HBCDs were used as flame retardants. They are now also considered as POPs and their production and use is restricted since 2013. Racemic α-, β-, and γ-HBCDs and their mixture were exposed to Sphingobium chinhatense IP26 in resting cell assays in parallel to β-HCH. All HBCD stereoisomers were converted with (-)β-HBCD being the best and both α-HBCD enantiomers the poorest substrates. HBCD conversion rates were 27-430 times slower than that of β-HCH. Three generations of hydroxylated transformation products were observed, 7 pentabromocyclododecanol isomers (PeBCD-ols), 11 tetrabromocyclododecadiols (TeBCD-diols) and 3 tribromocyclododecatriols (TrBCD-triols). The conversion of (+)α-, (-)β- and (-)γ-HBCD was faster than those of their enantiomers. Therefore the respective enantiomeric excess increased to 3 ± 1%, 36 ± 1% and 6 ± 2% during 48 h of bacterial exposure. PeBCD-ols appeared first, followed by TeBCD-diols and TrBCD-triols indicating stepwise hydrolytic dehalogenation reactions. In conclusion, severe HCH pollution at geographically distinct dumpsites triggered bacterial evolution to express enzymes transforming such compounds. We used S. chinhatense IP26 bacteria to transform structurally related HBCDs, also regulated under the Stockholm Convention. Such bacteria might be useful for bioremediation but the toxicity of the numerous transformation products observed must be assessed in advance.
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Affiliation(s)
- Norbert V Heeb
- Empa, Swiss Federal Laboratories for Materials Testing and Research, Laboratory for Advanced Analytical Technologies, Überlandstrasse 129, CH-8600, Dübendorf, Switzerland.
| | - Andreas Grubelnik
- Empa, Swiss Federal Laboratories for Materials Testing and Research, Laboratory for Advanced Analytical Technologies, Überlandstrasse 129, CH-8600, Dübendorf, Switzerland
| | - Birgit Geueke
- Eawag, Swiss Federal Institute of Aquatic Science and Technology, Überlandstrasse 133, CH-8600, Dübendorf, Switzerland
| | - Hans-Peter E Kohler
- Eawag, Swiss Federal Institute of Aquatic Science and Technology, Überlandstrasse 133, CH-8600, Dübendorf, Switzerland
| | - Peter Lienemann
- ZHAW, Zurich University of Applied Sciences, Institute of Chemistry and Biological Chemistry, Reidbach, CH-8820, Wädenswil, Switzerland
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Verma H, Bajaj A, Kumar R, Kaur J, Anand S, Nayyar N, Puri A, Singh Y, Khurana JP, Lal R. Genome Organization of Sphingobium indicum B90A: An Archetypal Hexachlorocyclohexane (HCH) Degrading Genotype. Genome Biol Evol 2017; 9:2191-2197. [PMID: 28922869 PMCID: PMC5737386 DOI: 10.1093/gbe/evx133] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/07/2017] [Indexed: 12/23/2022] Open
Abstract
Among sphingomonads, Sphingobium indicum B90A is widely investigated for its ability to degrade a manmade pesticide, γ-hexachlorocyclohexane (γ-HCH) and its isomers (α-, β-, δ-, and ε-HCH). In this study, complete genome of strain B90A was constructed using Single Molecule Real Time Sequencing (SMRT) and Illumina platform. The complete genome revealed that strain B90A harbors four replicons: one chromosome (3,654,322 bp) and three plasmids designated as pSRL1 (139,218 bp), pSRL2 (108,430 bp) and pSRL3 (43,761 bp). The study determined the precise location of lin genes (genes associated with the degradation of HCH isomers), for example, linA2, linB, linDER, linF, linGHIJ, and linKLMN on the chromosome; linA1, linC, and linF on pSRL1 and linDEbR on pSRL3. Strain B90A contained 26 copies of IS6100 element and most of them (15 copies) was found to be associated with lin genes. Duplication of several lin genes including linA, linDER, linGHIJ, and linF along with two variants of linE, that is, linEa (hydroquinone 1,2-dioxygenase) and linEb (chlorohydroquinone/hydroquinone 1,2-dioxygenase) were identified. This suggests that strain B90A not only possess efficient machinery for upper and lower HCH degradation pathways but it can also act on both hydroquinone and chlorohydroquinone metabolites produced during γ-HCH degradation. Synteny analysis revealed the duplication and transposition of linA gene (HCH dehydrochlorinase) between the chromosome and pSRL1, possibly through homologous recombination between adjacent IS6100 elements. Further, in silico analysis and laboratory experiments revealed that incomplete tyrosine metabolism was responsible for the production of extracellular brown pigment which distinguished strain B90A from other HCH degrading sphingomonads. The precise localization of lin genes, and transposable elements (IS6100) on different replicons now opens up several experimental avenues to elucidate the functions and regulatory mechanism of lin genes acquisition and transfer that were not completely known among the bacterial population inhabiting the HCH contaminated environment.
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Affiliation(s)
- Helianthous Verma
- Molecular Biology Laboratory, Department of Zoology, University of Delhi, India
| | - Abhay Bajaj
- Molecular Biology Laboratory, Department of Zoology, University of Delhi, India
| | - Roshan Kumar
- Molecular Biology Laboratory, Department of Zoology, University of Delhi, India
| | - Jasvinder Kaur
- Molecular Biology Laboratory, Department of Zoology, University of Delhi, India
| | - Shailly Anand
- Molecular Biology Laboratory, Department of Zoology, University of Delhi, India
| | - Namita Nayyar
- Molecular Biology Laboratory, Department of Zoology, University of Delhi, India
| | - Akshita Puri
- Molecular Biology Laboratory, Department of Zoology, University of Delhi, India
- Bacterial Pathogenesis Laboratory, Department of Zoology, University of Delhi, India
| | - Yogendra Singh
- Bacterial Pathogenesis Laboratory, Department of Zoology, University of Delhi, India
| | - Jitendra P. Khurana
- Department of Plant Molecular Biology, Interdisciplinary Centre for Plant Genomics, University of Delhi South Campus, India
| | - Rup Lal
- Molecular Biology Laboratory, Department of Zoology, University of Delhi, India
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Asemoloye MD, Ahmad R, Jonathan SG. Synergistic rhizosphere degradation of γ-hexachlorocyclohexane (lindane) through the combinatorial plant-fungal action. PLoS One 2017; 12:e0183373. [PMID: 28859100 PMCID: PMC5578508 DOI: 10.1371/journal.pone.0183373] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2017] [Accepted: 08/02/2017] [Indexed: 11/19/2022] Open
Abstract
Fungi are usually involved in degradation/deterioration of many anthropogenic wastes due to their verse enzyme secretions and adaptive capabilities. In this study, five dominant fungal strains were isolated from an aged lindane polluted site, they were all mixed (100 mg each) together with pent mushroom compost (SMC) and applied to lindane polluted soil (5 kg) at 10, 20, 30, 40% and control 0% (soil with no treatment), these were used to grow M. maximus Jacq for 3 months. To establish lindane degradation, deductions such as Degradation rate (K1), Half-life (t1/2) and Degradation efficiency (DE) were made based on the analyzed lindane concentrations before and after the experiment. We also tested the presence and expressions of phosphoesterases (mpd and opd-A) and catechol 1,2-dioxygenases (efk2 and efk4) genes in the strains. The stains were identified as Aspergillus niger (KY693970); Talaromyces atroroseus (KY488464), Talaromyces purpurogenus (KY488468), Yarrowia lipolytica (KY488469) and Aspergillus flavus (KY693973) through morphological and molecular methods. Combined rhizospheric action of M. maximus and fungi speed up lindane degradation rate, initially detected lindane concentration of 45 mg/kg was reduced to 11.26, 9.34 and 11.23 mg/kg in 20, 30 and 40% treatments respectively making 79.76, 85.93 and 88.67% degradation efficiencies. K1 of 1.29 was recorded in control while higher K1 of 1.60, 1.96 and 2.18 /day were recorded in 20, 30 and 40% treatments respectively. The best t1/2 of 0.32 and 0.35 /day were recorded in 40 and 30% compared to control (0.54 /day). All the strains were also affirmed to possess the tested genes; opd was overexpressed in all the strains except KY693973 while mpd was overexpressed in KY693970, KY488464 but moderately expressed in KY488468, KY488469 and KY693973. However, efk genes were under-expressed in most of the strains except KY488469 and KY693973 which showed moderate expression of efk4. This work suggests that the synergistic association of the identified rhizospheric fungi and M. maximus roots could be used to remove lindane in soil at a limited time period and this combination could be used at large scale.
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Affiliation(s)
- Michael Dare Asemoloye
- Food and Environmental Mycology/Biotechnology Unit, Department of Botany, University of Ibadan, Ibadan, Nigeria
| | - Rafiq Ahmad
- Department of Environmental Sciences, COMSATS Institute of Information Technology, Abbottabad, Pakistan
| | - Segun Gbolagade Jonathan
- Food and Environmental Mycology/Biotechnology Unit, Department of Botany, University of Ibadan, Ibadan, Nigeria
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Liu Q, Shao W, Zhang C, Xu C, Wang Q, Liu H, Sun H, Jiang Z, Gu A. Organochloride pesticides modulated gut microbiota and influenced bile acid metabolism in mice. Environ Pollut 2017; 226:268-276. [PMID: 28392238 DOI: 10.1016/j.envpol.2017.03.068] [Citation(s) in RCA: 56] [Impact Index Per Article: 8.0] [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: 01/07/2017] [Revised: 03/22/2017] [Accepted: 03/26/2017] [Indexed: 06/07/2023]
Abstract
Organochlorine pesticides (OCPs) can persistently accumulate in body and threaten human health. Bile acids and intestinal microbial metabolism have emerged as important signaling molecules in the host. However, knowledge on which intestinal microbiota and bile acids are modified by OCPs remains unclear. In this study, adult male C57BL/6 mice were exposed to p, p'-dichlorodiphenyldichloroethylene (p, p'-DDE) and β-hexachlorocyclohexane (β-HCH) for 8 weeks. The relative abundance and composition of various bacterial species were analyzed by 16S rRNA gene sequencing. Bile acid composition was analyzed by metabolomic analysis using UPLC-MS. The expression of genes involved in hepatic and enteric bile acids metabolism was measured by real-time PCR. Expression of genes in bile acids synthesis and transportation were measured in HepG2 cells incubated with p, p'-DDE and β-HCH. Our findings showed OCPs changed relative abundance and composition of intestinal microbiota, especially in enhanced Lactobacillus with bile salt hydrolase (BSH) activity. OCPs affected bile acid composition, enhanced hydrophobicity, decreased expression of genes on bile acid reabsorption in the terminal ileum and compensatory increased expression of genes on synthesis of bile acids in the liver. We demonstrated that chronic exposure of OCPs could impair intestinal microbiota; as a result, hepatic and enteric bile acid profiles and metabolism were influenced. The findings in this study draw our attention to the hazards of chronic OCPs exposure in modulating bile acid metabolism that might cause metabolic disorders and their potential to cause related diseases in human.
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Affiliation(s)
- Qian Liu
- Center of Gallbladder Disease, Shanghai East Hospital, Institute of Gallstone Disease, Tongji University School of Medicine, Shanghai, China; State Key Laboratory of Reproductive Medicine, Institute of Toxicology, Nanjing Medical University, Nanjing, China; Key Laboratory of Modern Toxicology of Ministry of Education, School of Public Health, Nanjing Medical University, Nanjing, China
| | - Wentao Shao
- State Key Laboratory of Reproductive Medicine, Institute of Toxicology, Nanjing Medical University, Nanjing, China; Key Laboratory of Modern Toxicology of Ministry of Education, School of Public Health, Nanjing Medical University, Nanjing, China
| | - Chunlan Zhang
- State Key Laboratory of Reproductive Medicine, Institute of Toxicology, Nanjing Medical University, Nanjing, China; Key Laboratory of Modern Toxicology of Ministry of Education, School of Public Health, Nanjing Medical University, Nanjing, China
| | - Cheng Xu
- State Key Laboratory of Reproductive Medicine, Institute of Toxicology, Nanjing Medical University, Nanjing, China; Key Laboratory of Modern Toxicology of Ministry of Education, School of Public Health, Nanjing Medical University, Nanjing, China
| | - Qihan Wang
- Department of Surgery, Shanghai Institute of Digestive Surgery, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Hui Liu
- State Key Laboratory of Reproductive Medicine, Institute of Toxicology, Nanjing Medical University, Nanjing, China; Key Laboratory of Modern Toxicology of Ministry of Education, School of Public Health, Nanjing Medical University, Nanjing, China
| | - Haidong Sun
- Department of Surgery, Shanghai Institute of Digestive Surgery, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Zhaoyan Jiang
- Center of Gallbladder Disease, Shanghai East Hospital, Institute of Gallstone Disease, Tongji University School of Medicine, Shanghai, China.
| | - Aihua Gu
- State Key Laboratory of Reproductive Medicine, Institute of Toxicology, Nanjing Medical University, Nanjing, China; Key Laboratory of Modern Toxicology of Ministry of Education, School of Public Health, Nanjing Medical University, Nanjing, China.
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Al Antary TM, Alawi MA, Estityah H, Haddad N. Organochlorine Pesticides Residues in Human Breast Milk from the Middle Governorates in Jordan in 2013/2014. Bull Environ Contam Toxicol 2017; 99:89-92. [PMID: 28540444 DOI: 10.1007/s00128-017-2117-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [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: 12/22/2016] [Accepted: 05/18/2017] [Indexed: 05/09/2023]
Abstract
One hundred samples of mother breast milk were gathered from six middle governorates and districts in Jordan in 2013/2014 to monitor Organochlorine pesticides pollutants. The results showed clearly that banned organochlorine pesticides are still detected in the monitored samples in low concentration despite banning of these persistent pollutants in Jordan since 36 years ago. However, the results indicated that 1% of the contaminated samples contained β-HCH, 5% γ-HCH, 3% p,p'-DDD, 2% heptachlor, 45% p,p'-DDE and 3% p,p'-DDT. In addition, these monitored samples had no residues of aldrin, dieldrin, α-endosulfan, β-endosulfan, HCB, o,p'-DD, o,p'-DDT and o,p'-DDE. In conclusion, there was a decline in the residues of Organochlorine pesticides, particularly DDT group members.
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Affiliation(s)
- Tawfiq M Al Antary
- Department of Plant Protection, School of Agriculture, University of Jordan, Amman, 11942, Jordan
| | - Mahmoud A Alawi
- Department of Chemistry, School of Science, University of Jordan, Amman, 11942, Jordan.
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Mamontova EA, Tarasova EN, Mamontov AA. PCBs and OCPs in human milk in Eastern Siberia, Russia: Levels, temporal trends and infant exposure assessment. Chemosphere 2017; 178:239-248. [PMID: 28329713 DOI: 10.1016/j.chemosphere.2017.03.058] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [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: 09/28/2016] [Revised: 02/21/2017] [Accepted: 03/13/2017] [Indexed: 06/06/2023]
Abstract
The aim of our study is to investigate the spatial distribution of polychlorinated biphenyls (PCBs), hexachlorobenzene (HCB), dichlorodiphenyltrichloroethane (p,p'-DDT) and its metabolites, α- and γ-isomers of hexachlorocyclohexane (HCH) in 155 samples of human milk (HM) from Eastern Siberia (six towns and seven villages in Irkutsk Region, one village of the Republic of Buryatia and one town in Zabaikal'sk Region, Russia), and to examine the dietary and social factors influencing the human exposure to the organochlorines. The median and range of the concentration of six indicator PCBs in HM in 14 localities in Eastern Siberia (114 (19-655) ng g-1 lipids respectively) are similar to levels in the majority of European countries. However, in one village, Onguren, the median and range of levels of six indicator PCBs (1390 (300-3725) ng g-1 lipids) were comparable to levels measured in highly contaminated populations. The Lake Baikal seals are highly exposed to persistent organic pollutants (POPs) and could be a potential source of PCB and DDT exposure in the Onguren cohort via the consumption of the Lake Baikal seal tissue. The location of food production in areas exposed to the emissions of local POP sources can also significantly influence POP levels in HM samples from industrialized areas. Estimated daily intakes (EDI) of HCH and HCB for infants are considerably lower or close to acceptable daily intake (ADI). The EDI of total DDTs and total PCBs are higher than ADI.
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Affiliation(s)
- Elena A Mamontova
- Vinogradov Institute of Geochemistry, Siberian Branch of the Russian Academy of Sciences, 664033, Favorsky Str., 1A, PO Box 421, Irkutsk, Russia.
| | - Eugenia N Tarasova
- Vinogradov Institute of Geochemistry, Siberian Branch of the Russian Academy of Sciences, 664033, Favorsky Str., 1A, PO Box 421, Irkutsk, Russia
| | - Alexander A Mamontov
- Vinogradov Institute of Geochemistry, Siberian Branch of the Russian Academy of Sciences, 664033, Favorsky Str., 1A, PO Box 421, Irkutsk, Russia
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Anacleto P, van den Heuvel FHM, Oliveira C, Rasmussen RR, Fernandes JO, Sloth JJ, Barbosa V, Alves RN, Marques A, Cunha SC. Exploration of the phycoremediation potential of Laminaria digitata towards diflubenzuron, lindane, copper and cadmium in a multitrophic pilot-scale experiment. Food Chem Toxicol 2017; 104:95-108. [PMID: 28161465 DOI: 10.1016/j.fct.2017.01.030] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2016] [Revised: 01/04/2017] [Accepted: 01/29/2017] [Indexed: 11/19/2022]
Abstract
The presence of contaminants in aquatic ecosystems can cause serious problems to the environment and marine organisms. This study aims to evaluate the phycoremediation capacity of macroalgae Laminaria digitata for pesticides (diflubenzuron and lindane) and toxic elements (cadmium and copper) in seawater in the presence or absence of mussels. The photosynthetic activity was monitored in the macroalgae to assess its "physiological status". The results showed that the presence of algae decreased diflubenzuron concentration in mussels by 70% after 120 h of exposure. Additionally, this macroalgae was efficient to reduce lindane, Cu and Cd in seawater; even though it not was able to reduce these contaminants in mussels. The studied pollutants did not affect the physiological status of macroalgae. This study reveals that the application of phycoremediation with macroalgae can be an useful and effective mitigation strategy to remove/decrease contaminant levels from the aquatic environment.
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Affiliation(s)
- Patrícia Anacleto
- Portuguese Institute for the Sea and Atmosphere, I.P. (IPMA), Division of Aquaculture and Upgrading (DivAV), Avenida de Brasília, 1449-006 Lisboa, Portugal; Interdisciplinary Centre of Marine and Environmental Research (CIIMAR), University of Porto, Rua dos Bragas, 289, 4050-123 Porto, Portugal; MARE - Marine and Environmental Sciences Centre, Marine Laboratory of Guia, Faculty of Sciences of the University of Lisbon, Av. Nossa Senhora do Cabo, 939, 2750-374 Cascais, Portugal
| | | | - C Oliveira
- LAQV- REQUIMTE, Laboratory of Bromatology and Hydrology, Faculty of Pharmacy, University of Porto, Rua Jorge de Viterbo Ferreira 228, 4050-313 Porto, Portugal
| | - Rie R Rasmussen
- National Food Institute, Technical University of Denmark (DTU Food), DK-2860 Søborg, Denmark
| | - José O Fernandes
- LAQV- REQUIMTE, Laboratory of Bromatology and Hydrology, Faculty of Pharmacy, University of Porto, Rua Jorge de Viterbo Ferreira 228, 4050-313 Porto, Portugal
| | - Jens J Sloth
- National Food Institute, Technical University of Denmark (DTU Food), DK-2860 Søborg, Denmark
| | - Vera Barbosa
- Portuguese Institute for the Sea and Atmosphere, I.P. (IPMA), Division of Aquaculture and Upgrading (DivAV), Avenida de Brasília, 1449-006 Lisboa, Portugal
| | - Ricardo N Alves
- Portuguese Institute for the Sea and Atmosphere, I.P. (IPMA), Division of Aquaculture and Upgrading (DivAV), Avenida de Brasília, 1449-006 Lisboa, Portugal
| | - António Marques
- Portuguese Institute for the Sea and Atmosphere, I.P. (IPMA), Division of Aquaculture and Upgrading (DivAV), Avenida de Brasília, 1449-006 Lisboa, Portugal; Interdisciplinary Centre of Marine and Environmental Research (CIIMAR), University of Porto, Rua dos Bragas, 289, 4050-123 Porto, Portugal
| | - Sara C Cunha
- LAQV- REQUIMTE, Laboratory of Bromatology and Hydrology, Faculty of Pharmacy, University of Porto, Rua Jorge de Viterbo Ferreira 228, 4050-313 Porto, Portugal.
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Salam JA, Hatha MAA, Das N. Microbial-enhanced lindane removal by sugarcane (Saccharum officinarum) in doped soil-applications in phytoremediation and bioaugmentation. J Environ Manage 2017; 193:394-399. [PMID: 28259469 DOI: 10.1016/j.jenvman.2017.02.006] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [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: 09/19/2016] [Revised: 01/31/2017] [Accepted: 02/05/2017] [Indexed: 05/18/2023]
Abstract
The aim of this study was to examine the effect of lindane-degrading yeast on the growth and lindane uptake by Saccharum sp., in doped garden soils. The rhizosphere of Saccharum plant was amended with yeast Candida VITJzN04 by root-inoculation. The bio-augment yeast was applied in two different forms viz., planktonic form and cells immobilized on sugarcane-bagasse, in the pot experiments. Garden soils (lindane∼100 mg/kg) exposed to various treatments were monitored for a period of 30 days, for residual lindane by gas-chromatography analysis. The lindane-removal rates in soil were expressed in terms of half-life period and were recorded as 13.3 days (yeast), 43.3 days (Saccharum), 9.8 days (free yeast-plant) and 7.1 days (immobilized yeast-plant). Additionally, Candida sp., was also identified as a plant growth promoting yeast due to its ability to produce growth hormone and solubilize insoluble phosphates in the soil for better uptake by the plant species. Bio-stimulation of the soil with yeast immobilized on sugarcane bagasse further enhanced the total yeast activity in the soil which in turn had a positive influence on lindane-removal. Combined treatment with bagasse immobilized yeast and plant showed the best lindane degradation. Results suggested that the synergistic activity of plant and yeast resulted in fast and efficient degradation of lindane. Thus, it can be concluded that Saccharum plant in combination with Candida VITJzN04 is an effective alternative for the conventional remediation strategies.
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Affiliation(s)
- Jaseetha Abdul Salam
- Department of Marine Biology, Microbiology and Biochemistry, School of Marine Sciences, Cochin University of Science and Technology, Cochin 682016, India; Environmental Biotechnology Division, School of Biosciences and Technology, VIT University, Vellore 632014, India.
| | - Mohammed A A Hatha
- Department of Marine Biology, Microbiology and Biochemistry, School of Marine Sciences, Cochin University of Science and Technology, Cochin 682016, India
| | - Nilanjana Das
- Environmental Biotechnology Division, School of Biosciences and Technology, VIT University, Vellore 632014, India
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Loredana S, Graziano P, Antonio M, Carlotta NM, Caterina L, Maria AA, Carlo Z, Giuseppe C, Pietro A. Lindane Bioremediation Capability of Bacteria Associated with the Demosponge Hymeniacidon perlevis. Mar Drugs 2017; 15:md15040108. [PMID: 28383507 PMCID: PMC5408254 DOI: 10.3390/md15040108] [Citation(s) in RCA: 9] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2017] [Revised: 03/16/2017] [Accepted: 03/27/2017] [Indexed: 01/13/2023] Open
Abstract
Lindane is an organochlorine pesticide belonging to persistent organic pollutants (POPs) that has been widely used to treat agricultural pests. It is of particular concern because of its toxicity, persistence and tendency to bioaccumulate in terrestrial and aquatic ecosystems. In this context, we assessed the role of bacteria associated with the sponge Hymeniacidon perlevis in lindane degradation. Seven bacteria isolates were characterized and identified. These isolates showed a remarkable capacity to utilize lindane as a sole carbon source leading to a percentage of residual lindane ranging from 3% to 13% after 12 days of incubation with the pesticide. The lindane metabolite, 1,3–6-pentachloro-cyclohexene, was identified as result of lindane degradation and determined by gas chromatography–mass spectrometry (GC–MS). The bacteria capable of lindane degradation were identified on the basis of the phenotypic characterization by morphological, biochemical and cultural tests, completed with 16S rDNA sequence analysis, and assigned to Mameliella phaeodactyli, Pseudovibrioascidiaceicola, Oceanicaulis stylophorae, Ruegeria atlantica and to three new uncharacterized species. The results obtained are a prelude to the development of future strategies for the in situ bioremediation of lindane.
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Affiliation(s)
- Stabili Loredana
- Istituto per l'Ambiente Marino Costiero, Unità Operativa di Supporto di Taranto, CNR, Via Roma 3, 74123 Taranto, Italy.
- Dipartimento di Scienze e Tecnologie Biologiche ed Ambientali, Università del Salento, Via Prov.le Lecce Monteroni, 73100 Lecce, Italy.
| | - Pizzolante Graziano
- Dipartimento di Scienze e Tecnologie Biologiche ed Ambientali, Università del Salento, Via Prov.le Lecce Monteroni, 73100 Lecce, Italy.
| | - Morgante Antonio
- Dipartimento di Scienze e Tecnologie Biologiche ed Ambientali, Università del Salento, Via Prov.le Lecce Monteroni, 73100 Lecce, Italy.
| | - Nonnis Marzano Carlotta
- Dipartimento di Biologia, Università di Bari Aldo Moro, 70125 Bari, Italy.
- CoNISMa, Piazzale Flaminio 9, 00196 Roma, Italy.
| | - Longo Caterina
- Dipartimento di Biologia, Università di Bari Aldo Moro, 70125 Bari, Italy.
- CoNISMa, Piazzale Flaminio 9, 00196 Roma, Italy.
| | | | - Zambonin Carlo
- Dipartimento di Chimica, Università di Bari Aldo Moro, 70125 Bari, Italy.
| | - Corriero Giuseppe
- Dipartimento di Biologia, Università di Bari Aldo Moro, 70125 Bari, Italy.
- CoNISMa, Piazzale Flaminio 9, 00196 Roma, Italy.
| | - Alifano Pietro
- Dipartimento di Scienze e Tecnologie Biologiche ed Ambientali, Università del Salento, Via Prov.le Lecce Monteroni, 73100 Lecce, Italy.
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Shrivastava N, Macwan AS, Kohler HPE, Kumar A. Important amino acid residues of hexachlorocyclohexane dehydrochlorinases (LinA) for enantioselective transformation of hexachlorocyclohexane isomers. Biodegradation 2017; 28:171-180. [PMID: 28251436 PMCID: PMC5422493 DOI: 10.1007/s10532-017-9786-9] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2016] [Accepted: 02/22/2017] [Indexed: 11/25/2022]
Abstract
LinA-type1 and LinA-type2 are two well-characterized variants of the enzyme ‘hexachlorocyclohexane (HCH)-dehydrochlorinase’. They differ from each other at ten amino acid positions and exhibit differing enantioselectivity for the transformation of the (–) and (+) enantiomers of α-HCH. Amino acids responsible for this enantioselectivity, however, are not known. An in silico docking analysis identified four amino acids (K20, L96, A131, and T133) in LinA-type1 that could be involved in selective binding of the substrates. Experimental studies with constructed mutant enzymes revealed that a combined presence of three amino acid changes in LinA-type1, i.e. K20Q, L96C, and A131G, caused a reversal in its preference from the (–) to the (+) enantiomer of α-HCH. This preference was enhanced by the additional amino acid change T133 M. Presence of these four changes also caused the reversal of enantioselectivity of LinA-type1 for δ-HCH, and β-, γ-, and δ-pentachlorocyclohexens. Thus, the residues K20, L96, A131, and T133 in LinA-type1 and the residues Q20, C96, G131, and M133 in LinA-type 2 appear to be important determinants for the enantioselectivity of LinA enzymes.
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Affiliation(s)
- Nidhi Shrivastava
- Academy of Scientific and Innovative Research, New Delhi, India
- Environmental Biotechnology Section, CSIR-Indian Institute of Toxicology Research, Lucknow, India
| | - Ankit S Macwan
- Department of Clinical and Experimental Medicine, Linköping University, Linköping, Sweden
| | - Hans-Peter E Kohler
- Department of Environmental Microbiology, Swiss Federal Institute for Aquatic Science and Technology (Eawag), Dübendorf, Switzerland.
| | - Ashwani Kumar
- Academy of Scientific and Innovative Research, New Delhi, India
- Environmental Biotechnology Section, CSIR-Indian Institute of Toxicology Research, Lucknow, India
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Arrona-Rivera AE, Enríquez PL, García-Feria LM, Orellana SA, von Osten JR. Organochlorine Pesticides in the Ferruginous Pygmy Owl (Glaucidium brasilianum) in Chiapas, Mexico. Bull Environ Contam Toxicol 2016; 97:337-345. [PMID: 27377751 DOI: 10.1007/s00128-016-1861-0] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [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: 06/24/2015] [Accepted: 06/23/2016] [Indexed: 06/06/2023]
Abstract
Concentrations of organochlorine pesticides were quantified in samples of feathers (n = 17) and blood (n = 15) of the ferruginous pygmy owl (Glaucidium brasilianum). The individuals were captured near the Protected Natural Area Cerro Sonsonate, Chiapas, Mexico, between February and June 2014. In both tissues, pesticides belonging to seven organochlorine chemical families were detected. However, the organochlorine pesticide concentrations differed between feathers and blood. The highest concentrations of hexachlorocyclohexanes were found in feathers (0.63 ± 0.89 μg/g), whereas the highest concentrations of ΣDrines were found in blood (0.31 ± 0.47 μg/mL). By using the summed concentrations for each of the seven families of pesticides found in feathers, we did not find any significant correlation between the pesticides and pectoral muscle or body weight (p > 0.15). The ΣDDT group was the only pesticide family that showed a positive correlation with owl body weight (r = 0.60, p = 0.05); the concentrations of these pesticides were also high in feather and blood tissues (r = 0.87, p = 0.02). Our results confirm that ferruginous pygmy owls in the study area are exposed to these pesticides.
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Affiliation(s)
| | - Paula L Enríquez
- El Colegio de la Frontera Sur, San Cristóbal de Las Casas, Chiapas, Mexico.
| | | | - Sergio Alvarado Orellana
- Facultad de Medicina, Instituto de Salud Poblacional, Universidad de Chile, Santiago, Chile
- Facultad de Ciencias de la Salud, Universidad de Tarapacá, Arica, Chile
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Nanasato Y, Namiki S, Oshima M, Moriuchi R, Konagaya KI, Seike N, Otani T, Nagata Y, Tsuda M, Tabei Y. Biodegradation of γ-hexachlorocyclohexane by transgenic hairy root cultures of Cucurbita moschata that accumulate recombinant bacterial LinA. Plant Cell Rep 2016; 35:1963-1974. [PMID: 27295266 DOI: 10.1007/s00299-016-2011-1] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [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: 01/02/2016] [Accepted: 06/04/2016] [Indexed: 06/06/2023]
Abstract
γ-HCH was successfully degraded using LinA-expressed transgenic hairy root cultures of Cucurbita moschata . Fusing an endoplasmic reticulum-targeting signal peptide to LinA was essential for stable accumulation in the hairy roots. The pesticide γ-hexachlorocyclohexane (γ-HCH) is a persistent organic pollutant (POP) that raises public health and environmental pollution concerns worldwide. Although several isolates of γ-HCH-degrading bacteria are available, inoculating them directly into γ-HCH-contaminated soil is ineffective because of the bacterial survival rate. Cucurbita species incorporate significant amounts of POPs from soils compared with other plant species. Here, we describe a novel bioremediation strategy that combines the bacterial degradation of γ-HCH and the efficient uptake of γ-HCH by Cucurbita species. We produced transgenic hairy root cultures of Cucurbita moschata that expressed recombinant bacterial linA, isolated from the bacterium Sphingobium japonicum UT26. The LinA protein was accumulated stably in the hairy root cultures by fusing an endoplasmic reticulum (ER)-targeting signal peptide to LinA. Then, we demonstrated that the cultures degraded more than 90 % of γ-HCH (1 ppm) overnight and produced the γ-HCH metabolite 1,2,4-trichlorobenzene, indicating that LinA degraded γ-HCH. These results indicate that the gene linA has high potential for phytoremediation of environmental γ-HCH.
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Affiliation(s)
- Yoshihiko Nanasato
- Genetically Modified Organism Research Center, National Institute of Agrobiological Sciences, 2-1-2 Kannondai, Tsukuba, Ibaraki, 305-8602, Japan.
- Forest Bio-Research Center, Forestry and Forest Products Research Institute, 3809-1 Ishi, Juo, Hitachi, Ibaraki, 319-1301, Japan.
| | - Sayuri Namiki
- Graduate School of Life and Environmental Sciences, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki, 305-8577, Japan
- Organochemicals Division, National Institute for Agro-Environmental Sciences, 3-1-3 Kannondai, Tsukuba, Ibaraki, 305-8604, Japan
| | - Masao Oshima
- Genetically Modified Organism Research Center, National Institute of Agrobiological Sciences, 2-1-2 Kannondai, Tsukuba, Ibaraki, 305-8602, Japan
| | - Ryota Moriuchi
- Department of Environmental Life Sciences, Graduate School of Life Sciences, Tohoku University, 2-1-1 Katahira, Aoba, Sendai, Miyagi, 980-8577, Japan
- The United Graduate School of Agricultural Science, Gifu University, 1-1 Yanagido, Gifu, Gifu, 501-1193, Japan
| | - Ken-Ichi Konagaya
- Genetically Modified Organism Research Center, National Institute of Agrobiological Sciences, 2-1-2 Kannondai, Tsukuba, Ibaraki, 305-8602, Japan
- Forest Bio-Research Center, Forestry and Forest Products Research Institute, 3809-1 Ishi, Juo, Hitachi, Ibaraki, 319-1301, Japan
| | - Nobuyasu Seike
- Organochemicals Division, National Institute for Agro-Environmental Sciences, 3-1-3 Kannondai, Tsukuba, Ibaraki, 305-8604, Japan
| | - Takashi Otani
- Organochemicals Division, National Institute for Agro-Environmental Sciences, 3-1-3 Kannondai, Tsukuba, Ibaraki, 305-8604, Japan
| | - Yuji Nagata
- Department of Environmental Life Sciences, Graduate School of Life Sciences, Tohoku University, 2-1-1 Katahira, Aoba, Sendai, Miyagi, 980-8577, Japan
| | - Masataka Tsuda
- Department of Environmental Life Sciences, Graduate School of Life Sciences, Tohoku University, 2-1-1 Katahira, Aoba, Sendai, Miyagi, 980-8577, Japan
| | - Yutaka Tabei
- Genetically Modified Organism Research Center, National Institute of Agrobiological Sciences, 2-1-2 Kannondai, Tsukuba, Ibaraki, 305-8602, Japan.
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Lukyanova ON, Tsygankov VY, Boyarova MD, Khristoforova NK. Bioaccumulation of HCHs and DDTs in organs of Pacific salmon (genus Oncorhynchus) from the Sea of Okhotsk and the Bering Sea. Chemosphere 2016; 157:174-180. [PMID: 27219293 DOI: 10.1016/j.chemosphere.2016.05.039] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [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: 03/16/2016] [Revised: 05/11/2016] [Accepted: 05/12/2016] [Indexed: 06/05/2023]
Abstract
Concentrations of isomers of hexachlorocyclohexane (α-, β-, γ-HCH) and dichlorodiphenyltrichloroethane (DDT) and its metabolites (dichlorodiphenyldichloroethane (DDD) and dichlorodiphenyldichloroethylene (DDE) were assessed in organs of the pink (Oncorhynchus gorbuscha), chum (Oncorhynchus keta), chinook (Oncorhynchus tshawytscha), and sockeye salmon (Oncorhynchus nerka), caught near the Kuril Islands (the northern-western part of the Pacific Ocean), in the Sea of Okhotsk and the Bering Sea. Pesticides have been found to accumulate in fish organs in the following: muscles < liver < eggs < male gonads. The highest concentrations in muscles and liver have been recorded from sockeye. Of the DDT group, only DDE has been detected. The average concentration of HCHs + DDE in the muscles of pink, chum, chinook, and sockeye was 141, 125, 1241, 1641 ng/g lipids, respectively; and in the liver, 279, 183, 1305, 3805 ng/g lipids, respectively. The total concentration of HCHs isomers was higher than that of DDE. Average HCHs + DDE concentration in organs of salmon from study area is lower than that in salmon from Pacific coast of North America.
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Affiliation(s)
- Olga N Lukyanova
- Pacific Research Fisheries Centre (TINRO-Centre), Vladivostok, Russia; School of Natural Sciences, Far Eastern Federal University (FEFU), Vladivostok, Russia
| | - Vasiliy Yu Tsygankov
- School of Natural Sciences, Far Eastern Federal University (FEFU), Vladivostok, Russia; School of Biomedicine, Far Eastern Federal University (FEFU), Vladivostok, Russia.
| | - Margarita D Boyarova
- School of Biomedicine, Far Eastern Federal University (FEFU), Vladivostok, Russia
| | - Nadezhda K Khristoforova
- School of Natural Sciences, Far Eastern Federal University (FEFU), Vladivostok, Russia; Pacific Geographical Institute FEB RAS, Vladivostok, Russia
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Milun V, Lušić J, Despalatović M. Polychlorinated biphenyls, organochlorine pesticides and trace metals in cultured and harvested bivalves from the eastern Adriatic coast (Croatia). Chemosphere 2016; 153:18-27. [PMID: 27010163 DOI: 10.1016/j.chemosphere.2016.03.039] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [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: 12/01/2015] [Revised: 03/03/2016] [Accepted: 03/10/2016] [Indexed: 06/05/2023]
Abstract
Polychlorinated biphenyls, organochlorine pesticides and trace metals were determined in tissues of bivalve molluscs (Mytilus galloprovincialis, Ostrea edulis, Venus verrucosa, Arca noae and Callista chione), collected from 11 harvesting and 2 cultured locations along the eastern Adriatic coast, in May and November 2012. Concentrations (ng g(-1) dry weight) of organochlorines ranged from 1.53 to 21.1 for PCBs and 0.68 to 5.21 for p,p'-DDTs. HCB, lindane, heptachlor and aldrin-like compounds were found in lower levels or were not detected. Metal concentrations (mg kg(-1) dry weight) ranged from 0.23 to 4.03 for Cd, 0.87-3.43 for Cr, 3.69-202.3 for Cu, 0.06-0.26 for HgT, 0.62-9.42 for Ni, 0.95-4.64 for Pb, and 55.76-4010.3 for Zn. Established organochlorine and trace metal levels were lower than the maximum allowable levels in seafood set by the European Commission.
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Affiliation(s)
- Vesna Milun
- Institute of Oceanography and Fisheries, Šetalište I. Meštrovića 63, 21000, Split, P.O. Box 500, Croatia
| | - Jelena Lušić
- Institute of Oceanography and Fisheries, Šetalište I. Meštrovića 63, 21000, Split, P.O. Box 500, Croatia.
| | - Marija Despalatović
- Institute of Oceanography and Fisheries, Šetalište I. Meštrovića 63, 21000, Split, P.O. Box 500, Croatia
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Zhou Y, Asplund L, Yin G, Athanassiadis I, Wideqvist U, Bignert A, Qiu Y, Zhu Z, Zhao J, Bergman Å. Extensive organohalogen contamination in wildlife from a site in the Yangtze River Delta. Sci Total Environ 2016; 554-555:320-8. [PMID: 26956179 DOI: 10.1016/j.scitotenv.2016.02.176] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [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: 12/28/2015] [Revised: 02/06/2016] [Accepted: 02/25/2016] [Indexed: 05/18/2023]
Abstract
The environmental and human health concerns for organohalogen contaminants (OHCs) extend beyond the 23 persistent organic pollutants (POPs) regulated by the Stockholm Convention. The current, intense industrial production and use of chemicals in China and their bioaccumulation makes Chinese wildlife highly suitable for the assessment of legacy, novel and emerging environmental pollutants. In the present study, six species of amphibians, fish and birds were sampled from paddy fields in the Yangtze River Delta (YRD) were screened for OHCs. Some extensive contamination was found, both regarding number and concentrations of the analytes, among the species assessed. High concentrations of chlorinated paraffins were found in the snake, Short-tailed mamushi (range of 200-340 μg g(-)(1)lw), Peregrine falcon (8-59 μg g(-1)lw) and Asiatic toad (97 μg g(-)(1)lw). Novel contaminants and patterns were observed; octaCBs to decaCB made up 20% of the total polychlorinated biphenyls (PCBs) content in the samples and new OHCs, substituted with 5-8 chlorines, were found but are not yet structurally confirmed. In addition, Dechlorane 602 (DDC-DBF) and numerous other OHCs (DDTs, hexachlorocyclohexanes (HCHs), polybrominated diphenyl ethers (PBDEs), hexbromocyclododecane (HBCDD), chlordane, heptachlor, endosulfan and Mirex) were found in all species analyzed. These data show extensive chemical contamination of wildlife in the YRD with a suite of OHCs with both known and unknown toxicities, calling for further in-depth studies.
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Affiliation(s)
- Yihui Zhou
- State Key Laboratory of Pollution Control and Resource Reuse, College of Environmental Science and Engineering, Tongji University, Shanghai 200092, China; Department of Environmental Science and Analytical Chemistry, Stockholm University, SE-106 91 Stockholm, Sweden
| | - Lillemor Asplund
- Department of Environmental Science and Analytical Chemistry, Stockholm University, SE-106 91 Stockholm, Sweden
| | - Ge Yin
- Department of Environmental Science and Analytical Chemistry, Stockholm University, SE-106 91 Stockholm, Sweden
| | - Ioannis Athanassiadis
- Department of Environmental Science and Analytical Chemistry, Stockholm University, SE-106 91 Stockholm, Sweden
| | - Ulla Wideqvist
- Department of Environmental Science and Analytical Chemistry, Stockholm University, SE-106 91 Stockholm, Sweden
| | - Anders Bignert
- Contaminant Research Group, Swedish Museum of Natural History, Box 50007, 104 15 Stockholm, Sweden
| | - Yanling Qiu
- Key Laboratory of Yangtze River Water Environment (Ministry of Education), College of Environmental Science and Engineering, Tongji University, Shanghai 200092, China.
| | - Zhiliang Zhu
- State Key Laboratory of Pollution Control and Resource Reuse, College of Environmental Science and Engineering, Tongji University, Shanghai 200092, China
| | - Jianfu Zhao
- State Key Laboratory of Pollution Control and Resource Reuse, College of Environmental Science and Engineering, Tongji University, Shanghai 200092, China
| | - Åke Bergman
- State Key Laboratory of Pollution Control and Resource Reuse, College of Environmental Science and Engineering, Tongji University, Shanghai 200092, China; Department of Environmental Science and Analytical Chemistry, Stockholm University, SE-106 91 Stockholm, Sweden; Swedish Toxicology Sciences Research Center (Swetox), Forskargatan 20, SE-152 57 Södertälje, Sweden
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Sineli PE, Tortella G, Dávila Costa JS, Benimeli CS, Cuozzo SA. Evidence of α-, β- and γ-HCH mixture aerobic degradation by the native actinobacteria Streptomyces sp. M7. World J Microbiol Biotechnol 2016; 32:81. [PMID: 27038951 DOI: 10.1007/s11274-016-2037-0] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2015] [Accepted: 02/23/2016] [Indexed: 11/27/2022]
Abstract
The organochlorine insecticide γ-hexachlorocyclohexane (γ-HCH, lindane) and its non-insecticidal α- and β-isomers continue to pose serious environmental and health concerns, although their use has been restricted or completely banned for decades. In this study we report the first evidence of the growth ability of a Streptomyces strain in a mineral salt medium containing high doses of α- and β-HCH (16.6 mg l(-1)) as a carbon source. Degradation of HCH isomers by Streptomyces sp. M7 was investigated after 1, 4, and 7 days of incubation, determining chloride ion release, and residues in the supernatants by GC with µECD detection. The results show that both the α- and β-HCH isomers were effectively metabolized by Streptomyces sp. M7, with 80 and 78 % degradation respectively, after 7 days of incubation. Moreover, pentachlorocyclohexenes and tetrachlorocyclohexenes were detected as metabolites. In addition, the formation of possible persistent compounds such as chlorobenzenes and chlorophenols were studied by GC-MS, while no phenolic compounds were detected. In conclusion, we have demonstrated for the first time that Streptomyces sp. M7 can degrade α- and β-isomers individually or combined with γ-HCH and could be considered as a potential agent for bioremediation of environments contaminated by organochlorine isomers.
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Affiliation(s)
- P E Sineli
- Planta Piloto de Procesos Industriales Microbiológicos (PROIMI-CONICET), Avenida Belgrano y Pasaje Caseros, T40001 MVB, Tucumán, Argentina
| | - G Tortella
- Departamento de Ingeniería Química, Universidad de La Frontera, Casilla 54-D, Temuco, Chile
| | - J S Dávila Costa
- Planta Piloto de Procesos Industriales Microbiológicos (PROIMI-CONICET), Avenida Belgrano y Pasaje Caseros, T40001 MVB, Tucumán, Argentina
| | - C S Benimeli
- Planta Piloto de Procesos Industriales Microbiológicos (PROIMI-CONICET), Avenida Belgrano y Pasaje Caseros, T40001 MVB, Tucumán, Argentina
- Universidad del Norte Santo Tomás de Aquino (UNSTA), 9 de Julio 165, 4000, Tucumán, Argentina
| | - S A Cuozzo
- Planta Piloto de Procesos Industriales Microbiológicos (PROIMI-CONICET), Avenida Belgrano y Pasaje Caseros, T40001 MVB, Tucumán, Argentina.
- Facultad de Ciencias Naturales e Instituto Miguel Lillo, Universidad Nacional de Tucumán, Miguel Lillo 205, 4000, Tucumán, Argentina.
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Di S, Huang L, Diao J, Zhou Z. Selective bioaccumulation and elimination of hexachlorocyclohexane isomers in Tubifex tubifex (Oligochaeta, Tubificidae). Environ Sci Pollut Res Int 2016; 23:6990-6998. [PMID: 26725886 DOI: 10.1007/s11356-015-5752-4] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [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: 07/05/2015] [Accepted: 11/03/2015] [Indexed: 06/05/2023]
Abstract
In this study, Tubifex tubifex worms were exposed to sediment-associated hexachlorocyclohexane (HCH) isomers to study the bioaccumulation and elimination behaviors of HCH isomers in T. tubifex. During a 10-day bioaccumulation experiment, bioaccumulation curves of HCHs were approximate to M-type in T. tubifex. The enantioselective behaviors of α-HCH enantiomers were observed in T. tubifex, with concentrations of (+)-α-HCH higher than that of (-)-α-HCH. The concentration of γ-HCH in T. tubifex was higher than that of β-HCH and α-HCH. The existence of worms can accelerate the dissipation of HCHs in sediment, and the dissipation half-lives of α-HCH, β-HCH, and γ-HCH were 8.39, 23.90, and 3.10 days, respectively. In the elimination experiment, approximately 0.053 (37.1%), 0.074 (45.9%), and 0.042 mg/kgwwt (38.4%) α-HCH, β-HCH, and γ-HCH were depleted or excreted in T. tubifex on the first day, respectively. The body residues in T. tubifex were 0.084 (α-HCH), 0.082 (β-HCH), and 0.061 mg/kgwwt (γ-HCH) at the end of elimination experiment. Furthermore, the existence of T. tubifex could affect the overlying water quality parameters.
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Affiliation(s)
- Shanshan Di
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, China Agricultural University, Yuanmingyuan West Road 2, Beijing, 100193, China
- Department of Applied Chemistry, China Agricultural University, Yuanmingyuan West Road 2, Beijing, 100193, China
| | - Ledan Huang
- Department of Applied Chemistry, China Agricultural University, Yuanmingyuan West Road 2, Beijing, 100193, China
| | - Jinling Diao
- Department of Applied Chemistry, China Agricultural University, Yuanmingyuan West Road 2, Beijing, 100193, China
| | - Zhiqiang Zhou
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, China Agricultural University, Yuanmingyuan West Road 2, Beijing, 100193, China.
- Department of Applied Chemistry, China Agricultural University, Yuanmingyuan West Road 2, Beijing, 100193, China.
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Nandavaram A, Sagar AL, Madikonda AK, Siddavattam D. Proteomics of Sphingobium indicum B90A for a deeper understanding of hexachlorocyclohexane (HCH) bioremediation. Rev Environ Health 2016; 31:57-61. [PMID: 26953700 DOI: 10.1515/reveh-2015-0042] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/13/2015] [Accepted: 10/13/2015] [Indexed: 06/05/2023]
Abstract
Genome wide expression profiling of Sphingobium indicum B90A revealed induction of lin genes, linA and linB, involved in dechlorination of hexachlorocyclohexane (HCH), in the presence of all four isomers of HCH. Supporting proteomics data, the qPCR and promoter assay showed upregulation of linA transcription in the presence of HCH isomers. Analysis of the upstream region of the linA gene revealed the existence of the GntR binding site overlapping the -10 hexamer of the putative promoter motif. As GntR is a known transcription repressor its dissociation from the linA promoter is expected to induce lin genes in the presence of HCH isomers. Comparison of in situ and in-culture proteomics indicated expression lin genes at the dumpsite, an indication for the in situ HCH degradation.
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Abbasi NA, Malik RN, Frantz A, Jaspers VLB. A review on current knowledge and future prospects of organohalogen contaminants (OHCs) in Asian birds. Sci Total Environ 2016; 542:411-426. [PMID: 26520266 DOI: 10.1016/j.scitotenv.2015.10.088] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [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: 07/29/2015] [Revised: 10/17/2015] [Accepted: 10/18/2015] [Indexed: 06/05/2023]
Abstract
The release of harmful chemicals in the Asian environment has recently increased dramatically due to rising industrial and agricultural activities. About 60% of the global human population is currently living on the Asian continent and may thus be exposed to a large range of different chemicals. Different classes of organohalogen chemicals have indeed been reported in various environmental compartments from Asia including humans and wildlife, but this issue has received less attention in birds. In this article, we reviewed the available literature on levels of legacy persistent organic pollutants (POPs) and various flame retardants (FRs) in Asian avifauna to analyze the existing pool of knowledge as well as to identify the gaps that should be addressed in future research. Furthermore, we discussed the variation in levels of organohalogens based on differences in regions, trophic level, dietary sources and migratory behaviors of species including distribution patterns in different tissues of birds. Although the mass of published literature is very low and even absent in many important regions of Asia, we deduced from the reported studies that levels of almost all classes of organohalogens (OHCs) including FRs were highest in East Asian countries such as Japan, China and South Korea, except for HCHs that were found at maximum levels in birds of South India. Concentrations (ng/g LW) of different OHCs in Asian birds ranged between <LOD (limit of detection) to 14,000,000 for polychlorinated biphenyls (PCBs), <LOD to 790,000 for dichlorodiphenyltrichloroethane (DDTs), <LOD to 12,000 for hexachlorobenzene (HCB), <LOD to 29,000 for hexachlorocyclohexanes (HCHs), <LOD to 47,000 for chlordanes (CHLs) and <LOD to 4600 for total cyclodienes. Further, ranges (ng/g LW) of 1.1 to 150,000 for Co-PCBs; <LOD to 27 for polychlorinated dibenzo-p-dioxins (PCDDs); <LOD to 45 for polychlorinated dibenzofurans (PCDFs) and 0.02 to 73 for PCDD/DFs have been reported in Asian aves. Among emerging FRs, levels of total polybrominated diphenyl ethers (PBDEs), total dechlorane plus (DPs) [syn and anti DPs] and hexabromocyclododecane (HBCDs) oscillated between <LOD to 134,000, <LOD to 3820 [<0.1-920 and <0.1-2900], and <LOD to 11,800 ng/g LW, respectively. Corresponding ranges of novel brominated flame retardants (nBFRs) such as decabromodiphenyl ethane (DBDPE) and 1,2-bis(2,4,6-tribromophenoxy)ethane (BTBPE) were <LOD to 820 and <LOD to 89 ng/g LW. Other nBFRs such as tetrabromobisphenol-A (TBBPA) hexabromobenzene (HBB) and pentabromoethylbenzene (PBEB) in Asian avifauna have been reported in very few studies. Dependence of organohalogens on dietary sources and subsequent biomagnification in the food chain has been corroborated through δ(15)N and δ(13)C stable isotope proxies. In general, tissues with higher fat content accumulated more organohalogens and vice versa. Aspects such as maternal transfer of OHCs and temporal trends have rarely been discussed in reported literature from Asia. The mobility of birds, vicinity to sources and trans-boundary movement of pollutants were identified as key exposure routes and subsequent OHCs contamination in Asian birds. There is extreme scarcity of literature on organohalogen contamination in birds from Northern, South-eastern and west Asian countries where an industrial boom has been witnessed in the past few decades. Current scenarios suggest that levels of OHCs, particularly the FRs, are rising in birds of Asia and it would be wise to develop baseline information and to regulate the OHCs emission accordingly.
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Affiliation(s)
- Naeem Akhtar Abbasi
- Environmental Biology and Ecotoxicology Laboratory, Department of Environmental Sciences, Faculty of Biological Sciences, Quaid-i-Azam University, Islamabad 45320, Pakistan
| | - Riffat Naseem Malik
- Environmental Biology and Ecotoxicology Laboratory, Department of Environmental Sciences, Faculty of Biological Sciences, Quaid-i-Azam University, Islamabad 45320, Pakistan.
| | - Adrien Frantz
- Sorbonne Universités, UPMC Univ Paris 06, UPEC, Paris 7, CNRS, INRA, IRD, Institut d'Ecologie et des Sciences de l'Environnement de Paris, F-75005, Paris, France
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Dimitriadou L, Malarvannan G, Covaci A, Iossifidou E, Tzafettas J, Zournatzi-Koiou V, Kalantzi OI. Levels and profiles of brominated and chlorinated contaminants in human breast milk from Thessaloniki, Greece. Sci Total Environ 2016; 539:350-358. [PMID: 26367190 DOI: 10.1016/j.scitotenv.2015.08.137] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [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: 07/15/2015] [Revised: 08/28/2015] [Accepted: 08/28/2015] [Indexed: 06/05/2023]
Abstract
Human breast milk samples (n=87) collected between July 2004 and July 2005 from primipara and multipara mothers from Thessaloniki, Greece were analysed for six groups of persistent organic pollutants (POPs): polybrominated diphenyl ethers (PBDEs), polychlorinated biphenyls (PCBs), dichlorodiphenyltrichloroethane and its metabolites (DDTs), chlordane compounds (CHLs), hexachlorocyclohexane isomers (HCHs) and hexachlorobenzene (HCB). DDTs [median: 410ng/g lipid weight (lw)], PCBs (median: 90ng/g lw) and HCHs (median: 40ng/g lw) were the predominantly identified compounds in all the breast milk samples. Levels of PBDEs (median: 1.5ng/g lw) in human breast milk samples from Thessaloniki, Greece were lower compared to other countries. Maternal age had a positive correlation with most compounds, but not with PBDEs. Women with a higher occupational exposure to PBDEs (i.e., working in office environments) had higher PBDE concentrations than all others and showed strong correlations, especially for BDE 47 and BDE 153. None of the analysed compounds showed any correlation with parity. Based on these levels, the daily intake of each group of POPs via human milk was calculated and compared with the tolerable daily intakes (TDI) or the reference doses (RfD). For the majority of samples (85 out of 87) a higher daily intake of PCBs than the TDI was calculated, while 11 out of 87 samples had a higher HCB intake than the TDI. The TDI and the RfD were not exceeded for DDTs and PBDEs, respectively. This is the first report of brominated flame retardants in human breast milk from Greece.
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Affiliation(s)
- Lida Dimitriadou
- Department of Environment, University of the Aegean, University Hill, Mytilene 81100, Greece
| | - Govindan Malarvannan
- Toxicological Center, University of Antwerp, Universiteitsplein 1, 2610 Wilrijk, Belgium
| | - Adrian Covaci
- Toxicological Center, University of Antwerp, Universiteitsplein 1, 2610 Wilrijk, Belgium
| | - Eleni Iossifidou
- Department of Food Hygiene and Technology, School of Veterinary Medicine, Aristotle University of Thessaloniki, 541 24 Thessaloniki, Greece
| | - John Tzafettas
- Second Department of Obstetrics and Gynecology, School of Medicine, Aristotle University of Thessaloniki, 541 24 Thessaloniki, Greece; European Interbalkan Medical Center of Thessaloniki, Pylaia, 544 54 Thessaloniki, Greece
| | - Vassiliki Zournatzi-Koiou
- Second Department of Obstetrics and Gynecology, School of Medicine, Aristotle University of Thessaloniki, 541 24 Thessaloniki, Greece
| | - Olga-Ioanna Kalantzi
- Department of Environment, University of the Aegean, University Hill, Mytilene 81100, Greece.
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