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An Q, Zhen Z, Zhong N, Qiu D, Xie Y, Yan C. Effects of biodegradable microplastics on arsenic migration and transformation in paddy soils: a comparative analysis with conventional microplastics. JOURNAL OF HAZARDOUS MATERIALS 2024; 469:134053. [PMID: 38508111 DOI: 10.1016/j.jhazmat.2024.134053] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/24/2023] [Revised: 02/18/2024] [Accepted: 03/14/2024] [Indexed: 03/22/2024]
Abstract
The combined pollution of microplastics (MPs) and arsenic (As) in paddy soils has attracted more attention worldwide. However, there are few comparative studies on the effects of biodegradable and conventional MPs on As migration and transformation. Therefore, conventional (polystyrene, polyethylene, polyvinyl chloride) and biodegradable (polybutadiene styrene, polylactic acid, polybutylene adipate terephthalate) MPs were selected to explore and demonstrate their influences and mechanism on As migration from paddy soils to overlying water and As speciation transformation through microcosmic experiment with measuring the changes of As chemical distribution, physicochemical indexes and microbial community in paddy soils. The results showed that biodegradable MPs enhanced As migration and transformation more effective than conventional MPs during 60 d. Biodegradable MPs indirectly increased the content of As(Ⅲ) and bioavailable As by changing the microbial community structure and affecting the biogeochemical cycles of carbon, nitrogen, sulfur and iron in soils, and promoted the As migration and transformation. PBS showed the strongest promoting effect, transforming to more As(Ⅲ) (11.43%) and bioavailable As (4.28%) than control. This helps to a better understanding of the effects of MPs on As biogeochemical cycle and to clarify the ecological and food safety risks of their combined pollution in soils.
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Affiliation(s)
- Qiuying An
- Key Laboratory of Urban Environment and Health, Fujian Key Laboratory of Watershed Ecology, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen 361021, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Zhuo Zhen
- Key Laboratory of Urban Environment and Health, Fujian Key Laboratory of Watershed Ecology, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen 361021, China
| | - Nijing Zhong
- Key Laboratory of Urban Environment and Health, Fujian Key Laboratory of Watershed Ecology, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen 361021, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Donghua Qiu
- Key Laboratory of Urban Environment and Health, Fujian Key Laboratory of Watershed Ecology, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen 361021, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Yunhe Xie
- Hunan Institute of Agro-Environment and Ecology/Key Laboratory of Agro, Environment in Midstream of Yangtze Plain, Ministry of Agriculture and Rural Affairs, Changsha 410013, China
| | - Changzhou Yan
- Key Laboratory of Urban Environment and Health, Fujian Key Laboratory of Watershed Ecology, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen 361021, China.
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Ziegelhöfer A, Kujala K. Assessing the Diversity and Metabolic Potential of Psychrotolerant Arsenic-Metabolizing Microorganisms From a Subarctic Peatland Used for Treatment of Mining-Affected Waters by Culture-Dependent and -Independent Techniques. Front Microbiol 2021; 12:648412. [PMID: 34295311 PMCID: PMC8290898 DOI: 10.3389/fmicb.2021.648412] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2020] [Accepted: 06/08/2021] [Indexed: 12/22/2022] Open
Abstract
Arsenic contamination in water by natural causes or industrial activities is a major environmental concern, and treatment of contaminated waters is needed to protect water resources and minimize the risk for human health. In mining environments, treatment peatlands are used in the polishing phase of water treatment to remove arsenic (among other contaminants), and peat microorganisms play a crucial role in arsenic removal. The present study assessed culture-independent diversity obtained through metagenomic and metatranscriptomic sequencing and culture-dependent diversity obtained by isolating psychrotolerant arsenic-tolerant, arsenite-oxidizing, and arsenate-respiring microorganisms from a peatland treating mine effluent waters of a gold mine in Finnish Lapland using a dilution-to-extinction technique. Low diversity enrichments obtained after several transfers were dominated by the genera Pseudomonas, Polaromonas, Aeromonas, Brevundimonas, Ancylobacter, and Rhodoferax. Even though maximal growth and physiological activity (i.e., arsenite oxidation or arsenate reduction) were observed at temperatures between 20 and 28°C, most enrichments also showed substantial growth/activity at 2–5°C, indicating the successful enrichments of psychrotolerant microorganisms. After additional purification, eight arsenic-tolerant, five arsenite-oxidizing, and three arsenate-respiring strains were obtained in pure culture and identified as Pseudomonas, Rhodococcus, Microbacterium, and Cadophora. Some of the enriched and isolated genera are not known to metabolize arsenic, and valuable insights on arsenic turnover pathways may be gained by their further characterization. Comparison with phylogenetic and functional data from the metagenome indicated that the enriched and isolated strains did not belong to the most abundant genera, indicating that culture-dependent and -independent methods capture different fractions of the microbial community involved in arsenic turnover. Rare biosphere microorganisms that are present in low abundance often play an important role in ecosystem functioning, and the enriched/isolated strains might thus contribute substantially to arsenic turnover in the treatment peatland. Psychrotolerant pure cultures of arsenic-metabolizing microorganisms from peatlands are needed to close the knowledge gaps pertaining to microbial arsenic turnover in peatlands located in cold climate regions, and the isolates and enrichments obtained in this study are a good starting point to establish model systems. Improved understanding of their metabolism could moreover lead to their use in biotechnological applications intended for bioremediation of arsenic-contaminated waters.
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Affiliation(s)
- Aileen Ziegelhöfer
- Faculty for Chemistry & Biotechnology, Aachen University of Applied Sciences, Jülich, Germany.,Water, Energy and Environmental Engineering Research Unit, University of Oulu, Oulu, Finland
| | - Katharina Kujala
- Water, Energy and Environmental Engineering Research Unit, University of Oulu, Oulu, Finland
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Wang L, Yin Z, Jing C. Metagenomic insights into microbial arsenic metabolism in shallow groundwater of Datong basin, China. CHEMOSPHERE 2020; 245:125603. [PMID: 31855753 DOI: 10.1016/j.chemosphere.2019.125603] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/04/2019] [Revised: 11/28/2019] [Accepted: 12/09/2019] [Indexed: 06/10/2023]
Abstract
Elevated arsenic (As) in groundwater is an urgent environmental problem that has caused serious endemic diseases in Datong basin, China. The fate and toxicity of As are generally regulated by microbial As metabolic processes. However, little is known about the microbial community and As metabolism in Datong basin. Herein, the microbial community structure and As metabolism genes in four wells with different levels of As concentration in Shanyin county were investigated using metagenomics approach. The results showed that the presence of As influenced the microbial communities, and Rhodococcus genus was significantly enriched in elevated As wells. As resistance genes were dominant from low to high As containing wells, and As efflux genes such as arsB and acr3 were positively correlated with As concentrations, suggesting that microbes tend to pump As out of the cell as a strategy for As detoxification. Other environmental factors including oxidation-reduction potential (ORP), total organic carbon (TOC), sulfate, and temperature also played a role in shaping the microbial community structure and As metabolic processes.
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Affiliation(s)
- Liying Wang
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, 100085, China
| | - Zhipeng Yin
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, 100085, China
| | - Chuanyong Jing
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, 100085, China.
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Lescure T, Joulian C, Charles C, Ben Ali Saanda T, Charron M, Breeze D, Bauda P, Battaglia-Brunet F. Simple or complex organic substrates inhibit arsenite oxidation and aioA gene expression in two β-Proteobacteria strains. Res Microbiol 2020; 171:13-20. [DOI: 10.1016/j.resmic.2019.09.006] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2019] [Revised: 09/04/2019] [Accepted: 09/06/2019] [Indexed: 11/30/2022]
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Lima MA, Urbieta MS, Donati E. Arsenic-tolerant microbial consortia from sediments of Copahue geothermal system with potential applications in bioremediation. J Basic Microbiol 2019; 59:680-691. [PMID: 30997929 DOI: 10.1002/jobm.201800628] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2018] [Revised: 04/02/2019] [Accepted: 04/11/2019] [Indexed: 11/09/2022]
Abstract
Although arsenic (As) is recognized as a toxic element for living species, some microorganisms have the ability to tolerate and transform it; recent studies have proposed to take advantage of such capacity to develop sustainable bioremediation strategies. In this study, we evaluated the adaptation to increasing concentrations of As(III) and As(V) of three metabolically different microbial cultures (heterotrophic, autotrophic-acidophilic, and anaerobic) obtained from a sample with low-soluble As content from the Copahue geothermal system. At the end of the adaptation process, the heterotrophic culture was able to grow at 20 mM and 450 mM of As(III) and As(V), respectively; the autotrophic-acidophilic culture showed tolerance to 15 mM of As(III) and 150 mM of As(V), whereas the anaerobic culture only developed in As(V) at concentrations up to 50 mM. The most tolerant consortia were characterized by their growth performance, complexity, and the presence of genes related to As metabolism and resistance. Regarding the consortia complexity, the predominant genera identified were: Paenibacillus in both heterotrophic consortia, Acidithiobacillus in the autotrophic-acidophilic consortium tolerant to As(III), Acidiphilium in the autotrophic-acidophilic consortium tolerant to As(V), and Thiomonas and Clostridium in the anaerobic consortium. This study is the first report of As tolerance microorganisms obtained from Copahue and reasserts the versatility and flexibility of the community of this natural extreme environment; also, it opens the door to the study of possible uses of these consortia in the design of biotechnological processes where the As concentration may fluctuate.
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Affiliation(s)
- María Alejandra Lima
- Centro de Investigación y Desarrollo de Fermentaciones Industriales (CINDEFI, CCT La Plata - CONICET, UNLP), Facultad de Ciencias Exactas, Universidad Nacional de La Plata, La Plata, Argentina
| | - María Sofía Urbieta
- Centro de Investigación y Desarrollo de Fermentaciones Industriales (CINDEFI, CCT La Plata - CONICET, UNLP), Facultad de Ciencias Exactas, Universidad Nacional de La Plata, La Plata, Argentina
| | - Edgardo Donati
- Centro de Investigación y Desarrollo de Fermentaciones Industriales (CINDEFI, CCT La Plata - CONICET, UNLP), Facultad de Ciencias Exactas, Universidad Nacional de La Plata, La Plata, Argentina
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Isolation and characterization of aerobic, culturable, arsenic-tolerant bacteria from lead-zinc mine tailing in southern China. World J Microbiol Biotechnol 2018; 34:177. [PMID: 30446973 DOI: 10.1007/s11274-018-2557-x] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2016] [Accepted: 11/07/2018] [Indexed: 10/27/2022]
Abstract
Bioremediation of arsenic (As) pollution is an important environmental issue. The present investigation was carried out to isolate As-resistant novel bacteria and characterize their As transformation and tolerance ability. A total of 170 As-resistant bacteria were isolated from As-contaminated soils at the Kangjiawan lead-zinc tailing mine, located in Hunan Province, southern China. Thirteen As-resistant isolates were screened by exposure to 260 mM Na2HAsO4·7H2O, most of which showed a very high level of resistance to As5+ (MIC ≥ 600 mM) and As3+ (MIC ≥ 10 mM). Sequence analysis of 16S rRNA genes indicated that the 13 isolates tested belong to the phyla Firmicutes, Proteobacteria and Actinobacteria, and these isolates were assigned to eight genera, Bacillus, Williamsia, Citricoccus, Rhodococcus, Arthrobacter, Ochrobactrum, Pseudomonas and Sphingomonas. Genes involved in As resistance were present in 11 of the isolates. All 13 strains transformed As (1 mM); the oxidation and reduction rates were 5-30% and 10-51.2% within 72 h, respectively. The rates of oxidation by Bacillus sp. Tw1 and Pseudomonas spp. Tw224 peaked at 42.48 and 34.94% at 120 h, respectively. For Pseudomonas spp. Tw224 and Bacillus sp. Tw133, the highest reduction rates were 52.01% at 48 h and 48.66% at 144 h, respectively. Our findings will facilitate further research into As metabolism and bioremediation of As pollution by genome sequencing and genes modification.
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Gu Y, Wang Y, Sun Y, Zhao K, Xiang Q, Yu X, Zhang X, Chen Q. Genetic diversity and characterization of arsenic-resistant endophytic bacteria isolated from Pteris vittata, an arsenic hyperaccumulator. BMC Microbiol 2018; 18:42. [PMID: 29739310 PMCID: PMC5941679 DOI: 10.1186/s12866-018-1184-x] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2017] [Accepted: 04/30/2018] [Indexed: 11/17/2022] Open
Abstract
Background Alleviating arsenic (As) contamination is a high-priority environmental issue. Hyperaccumulator plants may harbor endophytic bacteria able to detoxify As. Therefore, we investigated the distribution, diversity, As (III) resistance levels, and resistance-related functional genes of arsenite-resistant bacterial endophytes in Pteris vittata L. growing in a lead-zinc mining area with different As contamination levels. Results A total of 116 arsenite-resistant bacteria were isolated from roots of P. vittata with different As concentrations. Based on the 16S rRNA gene sequence analysis of representative isolates, the isolates belonged to Proteobacteria, Actinobacteria, and Firmicutes. Major genera found were Agrobacterium, Stenotrophomonas, Pseudomonas, Rhodococcus, and Bacillus. The most highly arsenite-resistant bacteria (minimum inhibitory concentration > 45 mM) were isolated from P. vittata with high As concentrations and belonged to the genera Agrobacterium and Bacillus. The strains with high As tolerance also showed high levels of indole-3-acetic acid (IAA) production and carried arsB/ACR3(2) genes. The arsB and ACR3(2) were most likely horizontally transferred among the strains. Conclusion The results of this study suggest that P. vittata plants with high As concentrations may select diverse arsenite-resistant bacteria; this diversity might, at least partly, be a result of horizontal gene transfer. These diverse endophytic bacteria are potential candidates to enhance phytoremediation techniques.
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Affiliation(s)
- Yunfu Gu
- Department of Microbiology, College of Resource Science and Technology, Sichuan Agricultural University, Chengdu, 611130, China.
| | - Yingyan Wang
- Department of Microbiology, College of Resource Science and Technology, Sichuan Agricultural University, Chengdu, 611130, China
| | - Yihao Sun
- Department of Microbiology, College of Resource Science and Technology, Sichuan Agricultural University, Chengdu, 611130, China
| | - Ke Zhao
- Department of Microbiology, College of Resource Science and Technology, Sichuan Agricultural University, Chengdu, 611130, China
| | - Quanju Xiang
- Department of Microbiology, College of Resource Science and Technology, Sichuan Agricultural University, Chengdu, 611130, China
| | - Xiumei Yu
- Department of Microbiology, College of Resource Science and Technology, Sichuan Agricultural University, Chengdu, 611130, China
| | - Xiaoping Zhang
- Department of Microbiology, College of Resource Science and Technology, Sichuan Agricultural University, Chengdu, 611130, China
| | - Qiang Chen
- Department of Microbiology, College of Resource Science and Technology, Sichuan Agricultural University, Chengdu, 611130, China
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Sultana M, Mou TJ, Sanyal SK, Diba F, Mahmud ZH, Parvez AK, Hossain MA. Investigation of Arsenotrophic Microbiome in Arsenic-Affected Bangladesh Groundwater. GROUND WATER 2017; 55:736-746. [PMID: 28418618 DOI: 10.1111/gwat.12520] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/23/2016] [Revised: 03/07/2017] [Accepted: 03/10/2017] [Indexed: 06/07/2023]
Abstract
Arsenotrophic bacteria contribute to the nutrient cycling in arsenic (As) affected groundwater. This study employed a culture-independent and -dependent investigation of arsenotrophic microbiomes in As affected groundwater samples collected from Madhabpur, Sonatengra, and Union Porishod in Singair Upazila, Manikganj, Bangladesh. Total As contents, detected by Atomic Absorption Spectrophotometry (AAS) of the samples, were 47 µg/L (Madhabpur, SNGW-1), 53 µg/L (Sonatengra, SNGW-2), and 12 µg/L (Union porishod, SNGW-3), whereas the control well (SNGW-4; depths >150 m) showed As content of 6 µg/L. Denaturing Gradient Gel Electrophoresis (DGGE) analysis of the amplified 16S rRNA gene from As-affected groundwater samples revealed the dominance of aerobic bacteria Pseudomonas within heterogeneous bacterial populations. DGGE of heterotrophic enrichments supplemented with arsenite [As (III)] for 4 weeks showed the dominance of Chryseobacterium, Flavobacterium, and Aquabacterium, whereas the dominant genera in that of autotrophic enrichments were Aeromonas, Acinetobacter, and Pseudomonas. Cultured bacteria retrieved from both autotrophic and heterotrophic enrichments were distinguished into nine genotypes belonging to Chryseobacterium, Acinetobacter, Escherichia, Pseudomonas, Stenotrophomonas, Janibacter, Staphylococcus, and Bacillus. They exhibited varying range of As(III) tolerance from 4 to 27 mM. As(III) transformation potential was confirmed within the isolates with oxidation rate as high as 0.143 mM/h for Pseudomonas sp. Sn 28. The arsenotrophic microbiome specifies their potential role in groundwater As-cycling and their genetic information provide the scientific basis for As-bioremediation.
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Affiliation(s)
| | - Taslin Jahan Mou
- Department of Microbiology, Jahangirnagar University, Savar, Dhaka 1342, Bangladesh
- Department of Microbiology, University of Dhaka, Dhaka 1000, Bangladesh
| | - Santonu Kumar Sanyal
- Department of Microbiology, University of Dhaka, Dhaka 1000, Bangladesh
- Currently at Department of Microbiology, Jagannath University, Dhaka 1100, Bangladesh
| | - Farzana Diba
- Department of Microbiology, University of Dhaka, Dhaka 1000, Bangladesh
| | - Zahid Hayat Mahmud
- Environmental Microbiology Laboratory, International Center for Diarrhoeal Disease Research, 68 Shaheed Tajuddin Ahmed Sarani, Mohakhali, Dhaka 1212, Bangladesh
| | - Anowar Khasru Parvez
- Department of Microbiology, Jahangirnagar University, Savar, Dhaka 1342, Bangladesh
| | - M Anwar Hossain
- Department of Microbiology, University of Dhaka, Dhaka 1000, Bangladesh
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Khowal S, Siddiqui MZ, Ali S, Khan MT, Khan MA, Naqvi SH, Wajid S. A report on extensive lateral genetic reciprocation between arsenic resistant Bacillus subtilis and Bacillus pumilus strains analyzed using RAPD-PCR. Mol Phylogenet Evol 2016; 107:443-454. [PMID: 27956257 DOI: 10.1016/j.ympev.2016.12.010] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2016] [Revised: 10/26/2016] [Accepted: 12/08/2016] [Indexed: 12/16/2022]
Abstract
The study involves isolation of arsenic resistant bacteria from soil samples. The characterization of bacteria isolates was based on 16S rRNA gene sequences. The phylogenetic consanguinity among isolates was studied employing rpoB and gltX gene sequence. RAPD-PCR technique was used to analyze genetic similarity between arsenic resistant isolates. In accordance with the results Bacillus subtilis and Bacillus pumilus strains may exhibit extensive horizontal gene transfer. Arsenic resistant potency in Bacillus sonorensis and high arsenite tolerance in Bacillus pumilus strains was identified. The RAPD-PCR primer OPO-02 amplified a 0.5kb DNA band specific to B. pumilus 3ZZZ strain and 0.75kb DNA band specific to B. subtilis 3PP. These unique DNA bands may have potential use as SCAR (Sequenced Characterized Amplified Region) molecular markers for identification of arsenic resistant B. pumilus and B. subtilis strains.
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Affiliation(s)
- Sapna Khowal
- Department of Biotechnology, Faculty of Science, Hamdard University (Jamia Hamdard), New Delhi 110 062, India
| | - Md Zulquarnain Siddiqui
- Department of Biotechnology, Faculty of Science, Hamdard University (Jamia Hamdard), New Delhi 110 062, India
| | - Shadab Ali
- Department of Biotechnology, Faculty of Science, Hamdard University (Jamia Hamdard), New Delhi 110 062, India
| | - Mohd Taha Khan
- Department of Biotechnology, Faculty of Science, Hamdard University (Jamia Hamdard), New Delhi 110 062, India
| | - Mather Ali Khan
- 247, Bond Life Sciences Centre, 1201 Rollins Street, University of Missouri-Columbia, Columbia, MO 65211, USA
| | | | - Saima Wajid
- Department of Biotechnology, Faculty of Science, Hamdard University (Jamia Hamdard), New Delhi 110 062, India.
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Faure D, Bonin P, Duran R. Environmental microbiology reveals the Earth secret life. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2015; 22:13573-13576. [PMID: 26162441 DOI: 10.1007/s11356-015-4968-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/23/2015] [Accepted: 06/25/2015] [Indexed: 06/04/2023]
Affiliation(s)
- Denis Faure
- Institut de Biologie Intégrative de la Cellule, CNRS-CEA-Université Paris-Sud, Saclay Plant Sciences, 91198, Gif-sur-Yvette Cedex, France
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