| Full text | |
| Author(s): |
Vasconcelos, Maria R. S.
;
Vieira, Gabriela A. L.
;
Otero, Igor V. R.
;
Bonugli-Santos, Rafaella C.
;
Rodrigues, Marili V. N.
;
Rehder, Vera L. G.
;
Ferro, Milene
;
Boaventura, Sinesio
;
Bacci, Mauricio, Jr.
;
Sette, Lara D.
Total Authors: 10
|
| Document type: | Journal article |
| Source: | Environmental Science and Pollution Research; v. 26, n. 12, p. 13-pg., 2019-04-01. |
| Abstract | |
Marine-derived fungi are relevant genetic resources for bioremediation of saline environments/processes. Among the five fungi recovered from marine sponges able to degrade pyrene (Py) and benzo[a]pyrene (BaP), Tolypocladium sp. strainCBMAI 1346 and Xylaria sp. CBMAI 1464 presented the best removal rates of Py and BaP, respectively. Since the decrease in BaP was related to mycelial adsorption, a combined strategy was applied for the investigation of Py degradation by the fungus Tolypocladium sp. CBMAI 1346. The selected fungus was able to degrade about 95% of Py after 7days of incubation (optimized conditions), generating metabolites different from the ones found before optimization. Metabolites and transcriptomic data revealed that the degradation occurred mainly by the cytochrome P450 pathway. Putative monooxygenases and dioxygenases found in the transcriptome may play an important role. After 21days of degradation, no toxicity was found in the optimized culture conditions. The findings from the present study highlight the potential of marine-derived fungi to degrade environmental pollutants and convey innovative information related to the metabolism of pyrene. (AU) | |
| FAPESP's process: | 13/19486-0 - Marine and Antarctic biotechnology: microbial enzymes and their applications |
| Grantee: | Lara Durães Sette |
| Support Opportunities: | Regular Research Grants |
| FAPESP's process: | 16/07957-7 - Marine and Antarctic Mycology: diversity and environmental application |
| Grantee: | Lara Durães Sette |
| Support Opportunities: | Regular Research Grants |