دورية أكاديمية
Transcriptome and secretome analysis of Aspergillus fumigatus in the presence of sugarcane bagasse
| العنوان: | Transcriptome and secretome analysis of Aspergillus fumigatus in the presence of sugarcane bagasse |
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| المؤلفون: | Paula Fagundes de Gouvêa, Aline Vianna Bernardi, Luis Eduardo Gerolamo, Emerson de Souza Santos, Diego Mauricio Riaño-Pachón, Sergio Akira Uyemura, Taisa Magnani Dinamarco |
| المصدر: | BMC Genomics, Vol 19, Iss 1, Pp 1-18 (2018) |
| بيانات النشر: | BMC |
| سنة النشر: | 2018 |
| المجموعة: | Directory of Open Access Journals: DOAJ Articles |
| مصطلحات موضوعية: | Aspergillus fumigatus, Sugarcane bagasse, CAZymes, Lignocellulose breakdown, RNA-Seq, Secretome, Biotechnology, TP248.13-248.65, Genetics, QH426-470 |
| الوصف: | Background Sugarcane bagasse has been proposed as a lignocellulosic residue for second-generation ethanol (2G) produced by breaking down biomass into fermentable sugars. The enzymatic cocktails for biomass degradation are mostly produced by fungi, but low cost and high efficiency can consolidate 2G technologies. A. fumigatus plays an important role in plant biomass degradation capabilities and recycling. To gain more insight into the divergence in gene expression during steam-exploded bagasse (SEB) breakdown, this study profiled the transcriptome of A. fumigatus by RNA sequencing to compare transcriptional profiles of A. fumigatus grown on media containing SEB or fructose as the sole carbon source. Secretome analysis was also performed using SDS-PAGE and LC-MS/MS. Results The maximum activities of cellulases (0.032 U mL-1), endo-1,4-β--xylanase (10.82 U mL-1) and endo-1,3-β glucanases (0.77 U mL-1) showed that functional CAZymes (carbohydrate-active enzymes) were secreted in the SEB culture conditions. Correlations between transcriptome and secretome data identified several CAZymes in A. fumigatus. Particular attention was given to CAZymes related to lignocellulose degradation and sugar transporters. Genes encoding glycoside hydrolase classes commonly expressed during the breakdown of cellulose, such as GH-5, 6, 7, 43, 45, and hemicellulose, such as GH-2, 10, 11, 30, 43, were found to be highly expressed in SEB conditions. Lytic polysaccharide monooxygenases (LPMO) classified as auxiliary activity families AA9 (GH61), CE (1, 4, 8, 15, 16), PL (1, 3, 4, 20) and GT (1, 2, 4, 8, 20, 35, 48) were also differentially expressed in this condition. Similarly, the most important enzymes related to biomass degradation, including endoxylanases, xyloglucanases, β-xylosidases, LPMOs, α-arabinofuranosidases, cellobiohydrolases, endoglucanases and β-glucosidases, were also identified in the secretome. Conclusions This is the first report of a transcriptome and secretome experiment of Aspergillus fumigatus in the ... |
| نوع الوثيقة: | article in journal/newspaper |
| اللغة: | English |
| تدمد: | 1471-2164 |
| العلاقة: | http://link.springer.com/article/10.1186/s12864-018-4627-8Test; https://doaj.org/toc/1471-2164Test; https://doaj.org/article/e2e6ddb6594c47fda69319a247d02b96Test |
| DOI: | 10.1186/s12864-018-4627-8 |
| الإتاحة: | https://doi.org/10.1186/s12864-018-4627-8Test https://doaj.org/article/e2e6ddb6594c47fda69319a247d02b96Test |
| رقم الانضمام: | edsbas.B275066A |
| قاعدة البيانات: | BASE |
Full Text Finder | تدمد: | 14712164 |
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| DOI: | 10.1186/s12864-018-4627-8 |