Microbial Removal of Heavy Metals from Contaminated Environments Using Metal-Resistant Indigenous Strains
Contamination of soil with heavy metals has become a matter of global importance due to its impact on agriculture, environmental integrity, and therefore human health and safety. Several microbial strains isolated from soil contaminated by long-term chemical and petrochemical activities were found t...
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| Format: | Article |
| Language: | English |
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MDPI AG
2023-12-01
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| Series: | Journal of Xenobiotics |
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| Online Access: | https://www.mdpi.com/2039-4713/14/1/4 |
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| author | Cristina Firincă Lucian-Gabriel Zamfir Mariana Constantin Iuliana Răut Luiza Capră Diana Popa Maria-Lorena Jinga Anda Maria Baroi Radu Claudiu Fierăscu Nicoleta Olguța Corneli Carmen Postolache Mihaela Doni Ana-Maria Gurban Luiza Jecu Tatiana Eugenia Șesan |
| author_facet | Cristina Firincă Lucian-Gabriel Zamfir Mariana Constantin Iuliana Răut Luiza Capră Diana Popa Maria-Lorena Jinga Anda Maria Baroi Radu Claudiu Fierăscu Nicoleta Olguța Corneli Carmen Postolache Mihaela Doni Ana-Maria Gurban Luiza Jecu Tatiana Eugenia Șesan |
| author_sort | Cristina Firincă |
| collection | DOAJ |
| description | Contamination of soil with heavy metals has become a matter of global importance due to its impact on agriculture, environmental integrity, and therefore human health and safety. Several microbial strains isolated from soil contaminated by long-term chemical and petrochemical activities were found to manifest various levels of tolerance to Cr, Pb, and Zn, out of which <i>Bacillus marisflavi</i> and <i>Trichoderma longibrachiatum</i> exhibited above-moderate tolerance. The concentrations of target heavy metals before and after bioremediation were determined using electrochemical screen-printed electrodes (SPE) modified with different nanomaterials. The morpho-structural SEM/EDX analyses confirmed the presence of metal ions on the surface of the cell, with metal uptake being mediated by biosorption with hydroxyl, carboxyl, and amino groups as per FTIR observations. <i>T. longibrachiatum</i> was observed to pose a higher bioremediation potential compared to <i>B. marisflavi</i>, removing 87% of Cr and 67% of Zn, respectively. Conversely, <i>B. marisflavi</i> removed 86% of Pb from the solution, compared to 48% by <i>T. longibrachiatum</i>. Therefore, the fungal strain <i>T. longibrachiatum</i> could represent a viable option for Cr and Zn bioremediation strategies, whereas the bacterial strain <i>B. marisflavi</i> may be used in Pb bioremediation applications. |
| first_indexed | 2024-04-24T18:07:17Z |
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| id | doaj.art-aa6a6997ceff40c98f2820ecd8cff3bd |
| institution | Directory Open Access Journal |
| issn | 2039-4705 2039-4713 |
| language | English |
| last_indexed | 2024-04-24T18:07:17Z |
| publishDate | 2023-12-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Journal of Xenobiotics |
| spelling | doaj.art-aa6a6997ceff40c98f2820ecd8cff3bd2024-03-27T13:49:54ZengMDPI AGJournal of Xenobiotics2039-47052039-47132023-12-01141517810.3390/jox14010004Microbial Removal of Heavy Metals from Contaminated Environments Using Metal-Resistant Indigenous StrainsCristina Firincă0Lucian-Gabriel Zamfir1Mariana Constantin2Iuliana Răut3Luiza Capră4Diana Popa5Maria-Lorena Jinga6Anda Maria Baroi7Radu Claudiu Fierăscu8Nicoleta Olguța Corneli9Carmen Postolache10Mihaela Doni11Ana-Maria Gurban12Luiza Jecu13Tatiana Eugenia Șesan14Biotechnology and Bioanalysis Departments, National Institute of Research and Development in Chemistry and Petrochemistry—ICECHIM, 202 Spl. Independenței, 060021 Bucharest, RomaniaBiotechnology and Bioanalysis Departments, National Institute of Research and Development in Chemistry and Petrochemistry—ICECHIM, 202 Spl. Independenței, 060021 Bucharest, RomaniaBiotechnology and Bioanalysis Departments, National Institute of Research and Development in Chemistry and Petrochemistry—ICECHIM, 202 Spl. Independenței, 060021 Bucharest, RomaniaBiotechnology and Bioanalysis Departments, National Institute of Research and Development in Chemistry and Petrochemistry—ICECHIM, 202 Spl. Independenței, 060021 Bucharest, RomaniaBiotechnology and Bioanalysis Departments, National Institute of Research and Development in Chemistry and Petrochemistry—ICECHIM, 202 Spl. Independenței, 060021 Bucharest, RomaniaBiotechnology and Bioanalysis Departments, National Institute of Research and Development in Chemistry and Petrochemistry—ICECHIM, 202 Spl. Independenței, 060021 Bucharest, RomaniaBiotechnology and Bioanalysis Departments, National Institute of Research and Development in Chemistry and Petrochemistry—ICECHIM, 202 Spl. Independenței, 060021 Bucharest, RomaniaBiotechnology and Bioanalysis Departments, National Institute of Research and Development in Chemistry and Petrochemistry—ICECHIM, 202 Spl. Independenței, 060021 Bucharest, RomaniaBiotechnology and Bioanalysis Departments, National Institute of Research and Development in Chemistry and Petrochemistry—ICECHIM, 202 Spl. Independenței, 060021 Bucharest, RomaniaNational Institute of Research and Development for Microbiology and Immunology—Cantacuzino, 103 Spl. Independenței, 050096 Bucharest, RomaniaDepartment of Botany and Microbiology, Faculty of Biology, University of Bucharest, 91–95 Spl. Independenței, 050095 Bucharest, RomaniaBiotechnology and Bioanalysis Departments, National Institute of Research and Development in Chemistry and Petrochemistry—ICECHIM, 202 Spl. Independenței, 060021 Bucharest, RomaniaBiotechnology and Bioanalysis Departments, National Institute of Research and Development in Chemistry and Petrochemistry—ICECHIM, 202 Spl. Independenței, 060021 Bucharest, RomaniaBiotechnology and Bioanalysis Departments, National Institute of Research and Development in Chemistry and Petrochemistry—ICECHIM, 202 Spl. Independenței, 060021 Bucharest, RomaniaDepartment of Botany and Microbiology, Faculty of Biology, University of Bucharest, 91–95 Spl. Independenței, 050095 Bucharest, RomaniaContamination of soil with heavy metals has become a matter of global importance due to its impact on agriculture, environmental integrity, and therefore human health and safety. Several microbial strains isolated from soil contaminated by long-term chemical and petrochemical activities were found to manifest various levels of tolerance to Cr, Pb, and Zn, out of which <i>Bacillus marisflavi</i> and <i>Trichoderma longibrachiatum</i> exhibited above-moderate tolerance. The concentrations of target heavy metals before and after bioremediation were determined using electrochemical screen-printed electrodes (SPE) modified with different nanomaterials. The morpho-structural SEM/EDX analyses confirmed the presence of metal ions on the surface of the cell, with metal uptake being mediated by biosorption with hydroxyl, carboxyl, and amino groups as per FTIR observations. <i>T. longibrachiatum</i> was observed to pose a higher bioremediation potential compared to <i>B. marisflavi</i>, removing 87% of Cr and 67% of Zn, respectively. Conversely, <i>B. marisflavi</i> removed 86% of Pb from the solution, compared to 48% by <i>T. longibrachiatum</i>. Therefore, the fungal strain <i>T. longibrachiatum</i> could represent a viable option for Cr and Zn bioremediation strategies, whereas the bacterial strain <i>B. marisflavi</i> may be used in Pb bioremediation applications.https://www.mdpi.com/2039-4713/14/1/4soil bioremediationheavy metalsmicroorganismsnanomaterials |
| spellingShingle | Cristina Firincă Lucian-Gabriel Zamfir Mariana Constantin Iuliana Răut Luiza Capră Diana Popa Maria-Lorena Jinga Anda Maria Baroi Radu Claudiu Fierăscu Nicoleta Olguța Corneli Carmen Postolache Mihaela Doni Ana-Maria Gurban Luiza Jecu Tatiana Eugenia Șesan Microbial Removal of Heavy Metals from Contaminated Environments Using Metal-Resistant Indigenous Strains Journal of Xenobiotics soil bioremediation heavy metals microorganisms nanomaterials |
| title | Microbial Removal of Heavy Metals from Contaminated Environments Using Metal-Resistant Indigenous Strains |
| title_full | Microbial Removal of Heavy Metals from Contaminated Environments Using Metal-Resistant Indigenous Strains |
| title_fullStr | Microbial Removal of Heavy Metals from Contaminated Environments Using Metal-Resistant Indigenous Strains |
| title_full_unstemmed | Microbial Removal of Heavy Metals from Contaminated Environments Using Metal-Resistant Indigenous Strains |
| title_short | Microbial Removal of Heavy Metals from Contaminated Environments Using Metal-Resistant Indigenous Strains |
| title_sort | microbial removal of heavy metals from contaminated environments using metal resistant indigenous strains |
| topic | soil bioremediation heavy metals microorganisms nanomaterials |
| url | https://www.mdpi.com/2039-4713/14/1/4 |
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