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de Melo Carlos L, Camacho KF, Duarte AW, de Oliveira VM, Boroski M, Rosa LH, Vieira R, Neto AA, Ottoni JR, Passarini MRZ. Bioprospecting the potential of the microbial community associated to Antarctic marine sediments for hydrocarbon bioremediation. Braz J Microbiol 2024; 55:471-485. [PMID: 38052770 PMCID: PMC10920520 DOI: 10.1007/s42770-023-01199-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2022] [Accepted: 11/27/2023] [Indexed: 12/07/2023] Open
Abstract
Microorganisms that inhabit the cold Antarctic environment can produce ligninolytic enzymes potentially useful in bioremediation. Our study focused on characterizing Antarctic bacteria and fungi from marine sediment samples of King George and Deception Islands, maritime Antarctica, potentially affected by hydrocarbon influence, able to produce enzymes for use in bioremediation processes in environments impacted with petroleum derivatives. A total of 168 microorganism isolates were obtained: 56 from sediments of King George Island and 112 from Deception Island. Among them, five bacterial isolates were tolerant to cell growth in the presence of diesel oil and gasoline and seven fungal were able to discolor RBBR dye. In addition, 16 isolates (15 bacterial and one fungal) displayed enzymatic emulsifying activities. Two isolates were characterized taxonomically by showing better biotechnological results. Psychrobacter sp. BAD17 and Cladosporium sp. FAR18 showed pyrene tolerance (cell growth of 0.03 g mL-1 and 0.2 g mL-1) and laccase enzymatic activity (0.006 UL-1 and 0.10 UL-1), respectively. Our results indicate that bacteria and fungi living in sediments under potential effect of hydrocarbon pollution may represent a promising alternative to bioremediate cold environments contaminated with polluting compounds derived from petroleum such as polycyclic aromatic hydrocarbons and dyes.
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Affiliation(s)
- Layssa de Melo Carlos
- Laboratório de Biotecnologia Ambiental, Universidade Federal da Integração Latino-Americana - UNILA, Av. Tarquínio Joslin dos Santos, 1000 - Jd Universitário, Foz do Iguaçu, PR, 85870-650, Brazil
| | - Karine Fernandes Camacho
- Laboratório de Biotecnologia Ambiental, Universidade Federal da Integração Latino-Americana - UNILA, Av. Tarquínio Joslin dos Santos, 1000 - Jd Universitário, Foz do Iguaçu, PR, 85870-650, Brazil
| | | | | | - Marcela Boroski
- Programa de Pós-Graduação Em Energia & Sustentabilidade, Universidade Federal da Integração Latino-Americana - UNILA, Foz Do Iguaçu, Brazil
| | - Luiz Henrique Rosa
- Departamento de Microbiologia, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - Rosemary Vieira
- Instituto de Geociências, Universidade Federal Fluminense, Niterói, RJ, Brazil
| | - Arthur A Neto
- Instituto de Geociências, Universidade Federal Fluminense, Niterói, RJ, Brazil
| | - Júlia Ronzella Ottoni
- Laboratório de Biotecnologia Ambiental, Universidade Federal da Integração Latino-Americana - UNILA, Av. Tarquínio Joslin dos Santos, 1000 - Jd Universitário, Foz do Iguaçu, PR, 85870-650, Brazil
| | - Michel R Z Passarini
- Laboratório de Biotecnologia Ambiental, Universidade Federal da Integração Latino-Americana - UNILA, Av. Tarquínio Joslin dos Santos, 1000 - Jd Universitário, Foz do Iguaçu, PR, 85870-650, Brazil.
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