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Banala UK, Indradyumna Das NP, Toleti SR. Uranium sequestration abilities of Bacillus bacterium isolated from an alkaline mining region. JOURNAL OF HAZARDOUS MATERIALS 2021; 411:125053. [PMID: 33453672 DOI: 10.1016/j.jhazmat.2021.125053] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/11/2020] [Revised: 12/29/2020] [Accepted: 01/04/2021] [Indexed: 06/12/2023]
Abstract
The present study elaborates uranium sequestration by bacteria from alkaline wastewaters. In the investigation, a few bacterial strains were isolated from alkaline uranium mine water and were tested for uranium sequestration properties 16S rRNA analysis assigned the 10 bacterial isolates to 4 genera of Actinobacteria and Firmicutes. Among all the isolates tested, the strain Bacillus aryabhattai (TP03) has shown superior sequestration capacity at 5 and 10 mg/L U in 1 mM carbonate-bicarbonate buffer at pH 9.2. At low uranium concentrations (5 mg/L as uranyl carbonate), the strain could sequester ~70% of the uranium in 6 h with a loading capacity of 4.3 mg U/g dry bacterial biomass. Increase in carbonate-bicarbonate buffer concentrations and pH reduced the sequestration capacity. Scanning electron microscopy and energy dispersive X-ray fluorescence spectroscopy studies indicated the presence of uranium with the bacterial biomass. Fourier transform infra-red spectroscopy results confirmed the uranium sequestration by cell membrane phosphate, amide, and carboxyl functional groups. Transmission electron microscopy study showed uranium presence within the cell cytoplasm, thus supporting the hypothesis on active metabolism-dependent bioaccumulation of uranium. The kinetics study of uranium sequestration was well fitted to the pseudo-second-order model. Overall, this study infers that the isolated alkaliphilic bacteria from the mine waters have significant sequestration property for treating uranium-containing alkaline wastewaters.
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Affiliation(s)
- Uday Kumar Banala
- Radiological and Environmental Safety Division, Indira Gandhi Centre for Atomic Research, Kalpakkam 603102, India; Homi Bhabha National Institute, Anushakti Nagar, Mumbai 400094, India
| | | | - Subba Rao Toleti
- Homi Bhabha National Institute, Anushakti Nagar, Mumbai 400094, India; Water and Steam Chemistry Division, Chemistry Group, Bhabha Atomic Research Centre, Kalpakkam 603102, India.
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Yakasai HM, Rahman MF, Manogaran M, Yasid NA, Syed MA, Shamaan NA, Shukor MY. Microbiological Reduction of Molybdenum to Molybdenum Blue as a Sustainable Remediation Tool for Molybdenum: A Comprehensive Review. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2021; 18:5731. [PMID: 34071757 PMCID: PMC8198738 DOI: 10.3390/ijerph18115731] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/14/2021] [Revised: 04/07/2021] [Accepted: 04/08/2021] [Indexed: 11/19/2022]
Abstract
Molybdenum (Mo) microbial bioreduction is a phenomenon that is beginning to be recognized globally as a tool for the remediation of molybdenum toxicity. Molybdenum toxicity continues to be demonstrated in many animal models of spermatogenesis and oogenesis, particularly those of ruminants. The phenomenon has been reported for more than 100 years without a clear understanding of the reduction mechanism, indicating a clear gap in the scientific knowledge. This knowledge is not just fundamentally important-it is specifically important in applications for bioremediation measures and the sustainable recovery of metal from industrial or mine effluent. To date, about 52 molybdenum-reducing bacteria have been isolated globally. An increasing number of reports have also been published regarding the assimilation of other xenobiotics. This phenomenon is likely to be observed in current and future events in which the remediation of xenobiotics requires microorganisms capable of degrading or transforming multi-xenobiotics. This review aimed to comprehensively catalogue all of the characterizations of molybdenum-reducing microorganisms to date and identify future opportunities and improvements.
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Affiliation(s)
- Hafeez Muhammad Yakasai
- Department of Biochemistry, Faculty of Biotechnology and Biomolecular Sciences, Universiti Putra Malaysia, Serdang 43400, Malaysia; (H.M.Y.); (M.F.R.); (M.M.); (N.A.Y.); (M.A.S.)
- Department of Biochemistry, Faculty of Basic Medical Sciences, College of Health Science, Bayero University, Kano PMB 3011, Nigeria
| | - Mohd Fadhil Rahman
- Department of Biochemistry, Faculty of Biotechnology and Biomolecular Sciences, Universiti Putra Malaysia, Serdang 43400, Malaysia; (H.M.Y.); (M.F.R.); (M.M.); (N.A.Y.); (M.A.S.)
| | - Motharasan Manogaran
- Department of Biochemistry, Faculty of Biotechnology and Biomolecular Sciences, Universiti Putra Malaysia, Serdang 43400, Malaysia; (H.M.Y.); (M.F.R.); (M.M.); (N.A.Y.); (M.A.S.)
| | - Nur Adeela Yasid
- Department of Biochemistry, Faculty of Biotechnology and Biomolecular Sciences, Universiti Putra Malaysia, Serdang 43400, Malaysia; (H.M.Y.); (M.F.R.); (M.M.); (N.A.Y.); (M.A.S.)
| | - Mohd Arif Syed
- Department of Biochemistry, Faculty of Biotechnology and Biomolecular Sciences, Universiti Putra Malaysia, Serdang 43400, Malaysia; (H.M.Y.); (M.F.R.); (M.M.); (N.A.Y.); (M.A.S.)
| | - Nor Aripin Shamaan
- Faculty of Medicine and Health Sciences, Universiti Sains Islam Malaysia, Kuala Lumpur 55100, Malaysia;
| | - Mohd Yunus Shukor
- Department of Biochemistry, Faculty of Biotechnology and Biomolecular Sciences, Universiti Putra Malaysia, Serdang 43400, Malaysia; (H.M.Y.); (M.F.R.); (M.M.); (N.A.Y.); (M.A.S.)
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Sánchez-Castro I, Amador-García A, Moreno-Romero C, López-Fernández M, Phrommavanh V, Nos J, Descostes M, Merroun ML. Screening of bacterial strains isolated from uranium mill tailings porewaters for bioremediation purposes. JOURNAL OF ENVIRONMENTAL RADIOACTIVITY 2017; 166:130-141. [PMID: 27068793 DOI: 10.1016/j.jenvrad.2016.03.016] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/29/2015] [Revised: 03/07/2016] [Accepted: 03/21/2016] [Indexed: 06/05/2023]
Abstract
The present work characterizes at different levels a number of bacterial strains isolated from porewaters sampled in the vicinity of two French uranium tailing repositories. The 16S rRNA gene from 33 bacterial isolates, corresponding to the different morphotypes recovered, was almost fully sequenced. The resulting sequences belonged to 13 bacterial genera comprised in the phyla Firmicutes, Actinobacteria and Proteobacteria. Further characterization at physiological level and metals/metalloid tolerance provided evidences for an appropriate selection of bacterial strains potentially useful for immobilization of uranium and other common contaminants. By using High Resolution Transmission Electron Microscope (HRTEM), this potential ability to immobilize uranium as U phosphate mineral phases was confirmed for the bacterial strains Br3 and Br5 corresponding to Arthrobacter sp. and Microbacterium oxydans, respectively. Scanning Transmission Electron Microscope- High-Angle Annular Dark-Field (STEM-HAADF) analysis showed U accumulates on the surface and within bacterial cytoplasm, in addition to the extracellular space. Energy Dispersive X-ray (EDX) element-distribution maps demonstrated the presence of U and P within these accumulates. These results indicate the potential of certain bacterial strains isolated from porewaters of U mill tailings for immobilizing uranium, likely as uranium phosphates. Some of these bacterial isolates might be considered as promising candidates in the design of uranium bioremediation strategies.
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Affiliation(s)
- Iván Sánchez-Castro
- Departamento de Microbiología, Campus de Fuentenueva, Universidad de Granada, 18071, Granada, Spain.
| | - Ahinara Amador-García
- Departamento de Microbiología, Campus de Fuentenueva, Universidad de Granada, 18071, Granada, Spain
| | - Cristina Moreno-Romero
- Departamento de Microbiología, Campus de Fuentenueva, Universidad de Granada, 18071, Granada, Spain
| | | | | | - Jeremy Nos
- R&D Department, AREVA Mines, La Défense, 92084, Paris, France
| | | | - Mohamed L Merroun
- Departamento de Microbiología, Campus de Fuentenueva, Universidad de Granada, 18071, Granada, Spain
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Halmi MIEB, Abdullah SRS, Wasoh H, Johari WLW, Ali MSBM, Shaharuddin NA, Shukor MY. Optimization and maximization of hexavalent molybdenum reduction to Mo-blue by Serratia sp. strain MIE2 using response surface methodology. RENDICONTI LINCEI-SCIENZE FISICHE E NATURALI 2016. [DOI: 10.1007/s12210-016-0552-4] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
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Characterization of a molybdenum-reducing Bacillus sp. strain khayat with the ability to grow on SDS and diesel. RENDICONTI LINCEI-SCIENZE FISICHE E NATURALI 2016. [DOI: 10.1007/s12210-016-0519-5] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
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Hexavalent molybdenum reduction to mo-blue by a sodium-dodecyl-sulfate-degrading Klebsiella oxytoca strain DRY14. BIOMED RESEARCH INTERNATIONAL 2013; 2013:384541. [PMID: 24383052 PMCID: PMC3872019 DOI: 10.1155/2013/384541] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/13/2013] [Revised: 10/29/2013] [Accepted: 10/30/2013] [Indexed: 11/17/2022]
Abstract
Bacteria with the ability to tolerate, remove, and/or degrade several xenobiotics simultaneously are urgently needed for remediation of polluted sites. A previously isolated bacterium with sodium dodecyl sulfate- (SDS-) degrading capacity was found to be able to reduce molybdenum to the nontoxic molybdenum blue. The optimal pH, carbon source, molybdate concentration, and temperature supporting molybdate reduction were pH 7.0, glucose at 1.5% (w/v), between 25 and 30 mM, and 25°C, respectively. The optimum phosphate concentration for molybdate reduction was 5 mM. The Mo-blue produced exhibits an absorption spectrum with a maximum peak at 865 nm and a shoulder at 700 nm. None of the respiratory inhibitors tested showed any inhibition to the molybdenum-reducing activity suggesting that the electron transport system of this bacterium is not the site of molybdenum reduction. Chromium, cadmium, silver, copper, mercury, and lead caused approximately 77, 65, 77, 89, 80, and 80% inhibition of the molybdenum-reducing activity, respectively. Ferrous and stannous ions markedly increased the activity of molybdenum-reducing activity in this bacterium. The maximum tolerable concentration of SDS as a cocontaminant was 3 g/L. The characteristics of this bacterium make it a suitable candidate for molybdenum bioremediation of sites cocontaminated with detergent pollutant.
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Ahmad SA, Shukor MY, Shamaan NA, Mac Cormack WP, Syed MA. Molybdate reduction to molybdenum blue by an Antarctic bacterium. BIOMED RESEARCH INTERNATIONAL 2013; 2013:871941. [PMID: 24381945 PMCID: PMC3870105 DOI: 10.1155/2013/871941] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/24/2013] [Revised: 10/22/2013] [Accepted: 11/09/2013] [Indexed: 11/25/2022]
Abstract
A molybdenum-reducing bacterium from Antarctica has been isolated. The bacterium converts sodium molybdate or Mo⁶⁺ to molybdenum blue (Mo-blue). Electron donors such as glucose, sucrose, fructose, and lactose supported molybdate reduction. Ammonium sulphate was the best nitrogen source for molybdate reduction. Optimal conditions for molybdate reduction were between 30 and 50 mM molybdate, between 15 and 20°C, and initial pH between 6.5 and 7.5. The Mo-blue produced had a unique absorption spectrum with a peak maximum at 865 nm and a shoulder at 710 nm. Respiratory inhibitors such as antimycin A, sodium azide, potassium cyanide, and rotenone failed to inhibit the reducing activity. The Mo-reducing enzyme was partially purified using ion exchange and gel filtration chromatography. The partially purified enzyme showed optimal pH and temperature for activity at 6.0 and 20°C, respectively. Metal ions such as cadmium, chromium, copper, silver, lead, and mercury caused more than 95% inhibition of the molybdenum-reducing activity at 0.1 mM. The isolate was tentatively identified as Pseudomonas sp. strain DRY1 based on partial 16s rDNA molecular phylogenetic assessment and the Biolog microbial identification system. The characteristics of this strain would make it very useful in bioremediation works in the polar and temperate countries.
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Affiliation(s)
- S. A. Ahmad
- Department of Biochemistry, Faculty of Biotechnology and Biomolecular Sciences, Universiti Putra Malaysia, 43400 Serdang, Selangor, Malaysia
| | - M. Y. Shukor
- Department of Biochemistry, Faculty of Biotechnology and Biomolecular Sciences, Universiti Putra Malaysia, 43400 Serdang, Selangor, Malaysia
| | - N. A. Shamaan
- Faculty of Medicine and Health Sciences, Universiti Sains Islam Malaysia, 13th Floor, Menara B, Persiaran MPAJ, Jalan Pandan Utama, Pandan Indah, 55100 Kuala Lumpur, Malaysia
| | - W. P. Mac Cormack
- lnstituto Antartico Argentino, Cerrito 1248 (1010), Buenos Aires, Argentina
| | - M. A. Syed
- Department of Biochemistry, Faculty of Biotechnology and Biomolecular Sciences, Universiti Putra Malaysia, 43400 Serdang, Selangor, Malaysia
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Othman AR, Bakar NA, Halmi MIE, Johari WLW, Ahmad SA, Jirangon H, Syed MA, Shukor MY. Kinetics of molybdenum reduction to molybdenum blue by Bacillus sp. strain A.rzi. BIOMED RESEARCH INTERNATIONAL 2013; 2013:371058. [PMID: 24369531 PMCID: PMC3863505 DOI: 10.1155/2013/371058] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/14/2013] [Accepted: 10/28/2013] [Indexed: 11/18/2022]
Abstract
Molybdenum is very toxic to agricultural animals. Mo-reducing bacterium can be used to immobilize soluble molybdenum to insoluble forms, reducing its toxicity in the process. In this work the isolation of a novel molybdate-reducing Gram positive bacterium tentatively identified as Bacillus sp. strain A.rzi from a metal-contaminated soil is reported. The cellular reduction of molybdate to molybdenum blue occurred optimally at 4 mM phosphate, using 1% (w/v) glucose, 50 mM molybdate, between 28 and 30 °C and at pH 7.3. The spectrum of the Mo-blue product showed a maximum peak at 865 nm and a shoulder at 700 nm. Inhibitors of bacterial electron transport system (ETS) such as rotenone, sodium azide, antimycin A, and potassium cyanide could not inhibit the molybdenum-reducing activity. At 0.1 mM, mercury, copper, cadmium, arsenic, lead, chromium, cobalt, and zinc showed strong inhibition on molybdate reduction by crude enzyme. The best model that fitted the experimental data well was Luong followed by Haldane and Monod. The calculated value for Luong's constants p max, K(s), S(m), and n was 5.88 μmole Mo-blue hr(-1), 70.36 mM, 108.22 mM, and 0.74, respectively. The characteristics of this bacterium make it an ideal tool for bioremediation of molybdenum pollution.
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Affiliation(s)
- A. R. Othman
- Department of Biochemistry, Faculty of Biotechnology and Biomolecular Sciences, University Putra Malaysia, 43400 Serdang, Selangor, Malaysia
| | - N. A. Bakar
- Department of Biochemistry, Faculty of Biotechnology and Biomolecular Sciences, University Putra Malaysia, 43400 Serdang, Selangor, Malaysia
| | - M. I. E. Halmi
- Department of Biochemistry, Faculty of Biotechnology and Biomolecular Sciences, University Putra Malaysia, 43400 Serdang, Selangor, Malaysia
| | - W. L. W. Johari
- Department of Environmental Science, Faculty of Environmental Studies, Universiti Putra Malaysia, 43400 Serdang, Selangor, Malaysia
| | - S. A. Ahmad
- Department of Biochemistry, Faculty of Biotechnology and Biomolecular Sciences, University Putra Malaysia, 43400 Serdang, Selangor, Malaysia
| | - H. Jirangon
- Department of Microbiology, Faculty of Biotechnology and Biomolecular Sciences, University Putra Malaysia, 43400 Serdang, Selangor, Malaysia
| | - M. A. Syed
- Department of Biochemistry, Faculty of Biotechnology and Biomolecular Sciences, University Putra Malaysia, 43400 Serdang, Selangor, Malaysia
| | - M. Y. Shukor
- Department of Biochemistry, Faculty of Biotechnology and Biomolecular Sciences, University Putra Malaysia, 43400 Serdang, Selangor, Malaysia
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Lim HK, Syed MA, Shukor MY. Reduction of molybdate to molybdenum blue by Klebsiella sp. strain hkeem. J Basic Microbiol 2011; 52:296-305. [DOI: 10.1002/jobm.201100121] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2011] [Accepted: 05/10/2011] [Indexed: 11/06/2022]
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Hexavalent molybdenum reduction to Mo-blue by Acinetobacter calcoaceticus. Folia Microbiol (Praha) 2010; 55:137-43. [DOI: 10.1007/s12223-010-0021-x] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2008] [Revised: 01/07/2010] [Indexed: 10/19/2022]
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Shukor M, Ahmad S, Nadzir M, Abdullah M, Shamaan N, Syed M. Molybdate reduction byPseudomonassp. strain DRY2. J Appl Microbiol 2009; 108:2050-8. [DOI: 10.1111/j.1365-2672.2009.04604.x] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Shukor M, Rahman M, Shamaan N, Syed M. Reduction of molybdate to molybdenum blue by Enterobacter
sp. strain Dr.Y13. J Basic Microbiol 2009; 49 Suppl 1:S43-54. [DOI: 10.1002/jobm.200800312] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Shukor MY, Rahman MF, Suhaili Z, Shamaan NA, Syed MA. Bacterial reduction of hexavalent molybdenum to molybdenum blue. World J Microbiol Biotechnol 2009. [DOI: 10.1007/s11274-009-0006-6] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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