Biodegradation of nonylphenol by two alphaproteobacterial strains in liquid culture and sediment microcosm |
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| Affiliation: | 1. College of Environmental Sciences and Engineering, The Key Laboratory of Water and Sediment Sciences (Ministry of Education), Peking University, Beijing 100871, China;2. Department of Environmental Science, Rutgers University, New Brunswick, NJ 08901, USA;1. Federal University of Pelotas, P.O. Box 354, 96010-900 Pelotas, RS, Brazil;2. Federal University of Paraná, 900 Lothário Meissner, P.O. Box 900, 80210-170 Curitiba, Brazil;3. Embrapa Forestry, Estrada da Ribeira km 111, P.O. Box 319, 83411-000 Colombo, PR, Brazil;1. Department of Industrial Microbiology and Biotechnology, Faculty of Biology and Environmental Protection, University of Łódź, Poland;2. Laboratory of Electron Microscopy, Faculty of Biology and Environmental Protection, University of Łódź, Poland;1. Department of Industrial Microbiology and Biotechnology, University of Lodz, Banacha 12/16, 90-237 Łódź, Poland;2. Department of Physical Chemistry, University of Lodz, Pomorska 165, 90-236 Łódź, Poland;1. Laboratorio de Micología Experimental, Departamento de Biodiversidad y Biología Experimental, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, InMiBo UBA-CONICET, 1428, Buenos, Aires, Argentina;2. Instituto Nacional de Tecnología Industrial, Avenida General Paz 5445, 1650, San Martín, Buenos Aires, Argentina;3. Gerencia Química, Centro Atómico Constituyentes, Comisión Nacional de Energía Atómica, Av. General Paz 1499, 1650, San Martín, Buenos Aires, Argentina;4. Instituto de Fisiología Vegetal (INFIVE), UNLP, CCT-La Plata-CONICET, Diag. 113 y 61, CC 327, 1900, La Plata, Argentina;5. Instituto de Botánica Spegazzini, Facultad de Ciencias Naturales y Museo, UNLP, 53 # 477, 1900, La Plata, Argentina |
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| Abstract: | Nonylphenol (NP) has been a contaminant of great environmental concern due to its ubiquity, toxicity and endocrine activity. Biodegradation is an ideal way to clean up NP pollution. In this study, two NP degraders were isolated from river sediment. Their ability to degrade NP was tested in both liquid culture and sediment microcosm. Phylogenetic analysis indicated that one isolate belonged to genus Rhizobium, while another was a Sphingobium species. The Rhizobium strain contained ALK gene, while the Sphingobium strain harbored ALK and C23O genes. Both of the two strains showed strong NP degradation ability in liquid culture. However, only the Rhizobium strain demonstrated a potential of bioremediating NP-contaminated sediment. This study can provide some new insights towards NP biodegradation and bioremediation. |
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| Keywords: | Alkylphenol Bioremediation Bioaugmentation Sediment |
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