Please use this identifier to cite or link to this item: http://repositorio.unicamp.br/jspui/handle/REPOSIP/199641
Type: Artigo de periódico
Title: Marine-derived Filamentous Fungi And Their Potential Application For Polycyclic Aromatic Hydrocarbon Bioremediation.
Author: Passarini, Michel R Z
Rodrigues, Marili V N
da Silva, Manuela
Sette, Lara D
Abstract: Eight marine-derived fungi that were previously selected for their abilities to decolorize RBBR dye were subjected to pyrene and benzo[a]pyrene degradation. The fungus Aspergillus sclerotiorum CBMAI 849 showed the best performance with regard to pyrene (99.7%) and benzo[a]pyrene (76.6%) depletion after 8 and 16 days, respectively. Substantial amounts of benzo[a]pyrene (>50.0%) depletion were also achieved by Mucor racemosus CBMAI 847. Therefore, these two fungal strains were subjected to metabolism evaluation using the HPLC-DAD-MS technique. The results showed that A. sclerotiorum CBMAI 849 and M. racemosus CBMAI 847 were able to metabolize pyrene to the corresponding pyrenylsulfate and were able to metabolize benzo[a]pyrene to benzo[a]pyrenylsulfate, suggesting that the mechanism of hydroxylation is mediated by a cytochrome P-450 monooxygenase, followed by conjugation with sulfate ions. Because these fungi were adapted to the marine environment, the strains that were used in the present study are considered to be attractive targets for the bioremediation of saline environments, such as ocean and marine sediments that are contaminated by PAHs.
Subject: Animals
Aspergillus
Benzo(a)pyrene
Biodegradation, Environmental
Cnidaria
Fungi
Geologic Sediments
Mucor
Polycyclic Hydrocarbons, Aromatic
Pyrenes
Water Pollutants, Chemical
Rights: fechado
Identifier DOI: 10.1016/j.marpolbul.2010.10.003
Address: http://www.ncbi.nlm.nih.gov/pubmed/21040933
Date Issue: 2011
Appears in Collections:Unicamp - Artigos e Outros Documentos

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