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| Content Provider | Springer Nature Link |
|---|---|
| Author | Gomaa, Ola M. Momtaz, Osama A. Kareem, Hussein Abd El Fathy, Riham |
| Copyright Year | 2010 |
| Abstract | Twenty-two local brown rot fungal isolates were obtained from 5 different environmental sources. Fourteen isolates were presumptively identified as Aspergillus sp. and eight as Penicillium sp. using mycelium and spore morphology. All the fungal isolates were screened for their ability to decolorize Isolan Red and colored waste water and to produce oxidase activity. Aspergillus isolate 2 was chosen for further study because it could decolorize both dyes and produce oxidase. A 400 bp fragment of the 18S rRNA gene from isolate 2 was analyzed by nucleotide sequence analysis. Blastn analysis of sequence data demonstrated 100% identity to Aspergillus sp. and isolate 2 was assigned the strain designation Aspergillus sp. EL-2 (Accession number: HM140797). EL-2 could remove up to 80% of Disperse Blue in waste water effluent within 48 h in submerged shake culture. The decolorization process was energy dependent, growth related, and required viable biomass. EL-2 was able to grow and decolorize waste water over a broad pH range. Addition of inducers and inhibitors of specific enzymes or families of enzymes demonstrated the involvement of phenol oxidase (laccase), cytochrome p-450 oxygenase and hydroxyl radicals in the decolorization process. The data also suggest that it may be practical to enhance decolorizing activity of Aspergillus sp. EL-2 through the metabolic control of fungal degradative pathways by altering media composition. |
| Starting Page | 1641 |
| Ending Page | 1648 |
| Page Count | 8 |
| File Format | |
| ISSN | 09593993 |
| Journal | World Journal of Microbiology and Biotechnology |
| Volume Number | 27 |
| Issue Number | 7 |
| e-ISSN | 15730972 |
| Language | English |
| Publisher | Springer Netherlands |
| Publisher Date | 2010-11-24 |
| Publisher Place | Dordrecht |
| Access Restriction | One Nation One Subscription (ONOS) |
| Subject Keyword | Brown rot fungi 18S rRNA Aspergillus sp. Bioremediation Laccase Textile waste water Biotechnology Microbiology Biochemistry Environmental Engineering/Biotechnology Applied Microbiology |
| Content Type | Text |
| Resource Type | Article |
| Subject | Physiology Medicine Applied Microbiology and Biotechnology Biotechnology |
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