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| Content Provider | Springer Nature Link |
|---|---|
| Author | Xu, Jianzhong Zhang, Junlan Zhang, Weiguo Hu, Kaihui |
| Copyright Year | 2012 |
| Abstract | Laccase has been proved important in decolorization of Remazol Brilliant Blue R (RBBR), oxidation of 2, 2′-Azino-bis (3-ethylbenzothiazoline-6-sulfonic acid) diammonium salt, lignin degradation and fruiting-body formation. The decolorization of RBBR by laccase was firstly used to screen protoplast fusants. Fusants were obtained by protoplast fusion between the strains of Hypsizigus marmoreus and Clitocybe maxima, and two fusants (IM1 and IIIM5) were screened on PDA medium containing RBBR. These fusants were significant higher in laccase activity than H. marmoreus, nearly 413 and 395 times, respectively. Their hyphal growth rates were also remarkable higher than H. marmoreus, nearly 1.5 and 1.4 times, respectively. Sodium dodecyl sulfate polyacrylamide gel electrophoresis analysis showed these fusants contained the laccase, and the molecular mass of the laccase was consistent with the laccase of C. maxima, nearly 62 kDa. The pileus color of the IM1 and IIIM5 also showed partial recombined characteristics comparing to the parental strains, while biological efficiency ratios were prominent higher than that of H. marmoreus, up to 14.58 and 10.87 %, respectively. Randomly amplified polymorphic DNA bands of fusants not only were similar to parental bands, but presented new non-parental bands. Using the Unweighted pair-group method together with mathematic averages method to gain a dendrogram, in which the fusants showed intra-cluster variations. Significantly, H. marmoreus was the dominant parent, while C. maxima were distant from the fusants. The differences among IM1, IIIM5 and H. marmoreus, and the similarities among IM1, IIIM5 and C. maxima indicated IM1 and IIIM5 were somatic hybrids of H. marmoreus and C. maxima. Accordingly, it is feasible to use laccase to screen fusants of H. marmoreus and C. maxima. |
| Starting Page | 2625 |
| Ending Page | 2633 |
| Page Count | 9 |
| File Format | |
| ISSN | 09593993 |
| Journal | World Journal of Microbiology and Biotechnology |
| Volume Number | 28 |
| Issue Number | 8 |
| e-ISSN | 15730972 |
| Language | English |
| Publisher | Springer Netherlands |
| Publisher Date | 2012-06-13 |
| Publisher Place | Dordrecht |
| Access Restriction | One Nation One Subscription (ONOS) |
| Subject Keyword | Hypsizigus marmoreus Clitocybe maxima Protoplast fusion Fungal laccase Fusant screening Microbiology Biochemistry Biotechnology Applied Microbiology Environmental Engineering/Biotechnology |
| Content Type | Text |
| Resource Type | Article |
| Subject | Physiology Medicine Applied Microbiology and Biotechnology Biotechnology |
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