alexa Catabolic Versatility of Sphingobium sp. Strain PNB Capable of Degrading Structurally Diverse Aromatic Compounds | OMICS International | Abstract
ISSN: 2155-6199

Journal of Bioremediation & Biodegradation
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Research Article

Catabolic Versatility of Sphingobium sp. Strain PNB Capable of Degrading Structurally Diverse Aromatic Compounds

Madhumita Roy, Pratick Khara, Soumik Basu and Tapan K Dutta*
Department of Microbiology, Bose Institute, Kolkata, India
Corresponding Author : Tapan K Dutta
Department of Microbiology
Bose Institute
P-1/12 C.I.T. Scheme VII M
Kolkata, India
Tel: +913325693241
Fax: +913323553886
E-mail: [email protected]
Received: October 15, 2012; Accepted: November 22, 2012; Published: November 24, 2012
Citation: Roy M, Khara P, Basu S, Dutta TK (2013) Catabolic Versatility of Sphingobium sp. Strain PNB Capable of Degrading Structurally Diverse Aromatic Compounds. J Bioremed Biodeg 4:173. doi:10.4172/2155-6199.1000173
Copyright: © 2013 Roy M, et al. This is an open-a ccess article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
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Abstract

Sphingobium sp. strain PNB isolated from municipal waste-contaminated soil had already been described to
possess catabolic potential of assimilating phenanthrene. Apart from phenanthrene, strain PNB was found to be capable of utilizing naphthalene and biphenyl singly, as sole carbon and energy sources. Based on chromatographic and spectrophotometric analyses, pathways for the degradation of naphthalene and biphenyl were revealed in strain PNB. Anthracene, on the other hand, was found to be partially metabolized, furnishing 9,10-anthraquinone and 3-hydroxy-2-naphthoic acid, which appeared as the dead-end products. In addition, strain PNB was observed to co-metabolize fluoranthene, acenaphthene, benz[a]anthracene, pyrene and benzo[a]pyrene, in presence of phenanthrene indicating metabolic robustness of the strain, which may serve as a candidate organism in the bioremediation of Polycyclic Aromatic Hydrocarbons (PAHs)-contaminated environment.

Keywords

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