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GfLaeSulp

ABSTRACT: Laetiporus sulphureus (chicken of the woods), genomic and transcriptomic data

PROVIDER: PRJEB47305 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	ERR6688740_1.fastq.gz	Fastqsanger.gz
	ERR6688740_2.fastq.gz	Fastqsanger.gz
	ERR6688736_1.fastq.gz	Fastqsanger.gz
	ERR6688736_2.fastq.gz	Fastqsanger.gz
	ERR6688737_1.fastq.gz	Fastqsanger.gz

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Project description:Background: Wood-decay basidiomycetes are effective for the degradation of highly lignified and recalcitrant substrates. Brown-rot strain produces carbohydrate-active enzymes involved in the degradation of lignocellulosic materials, along with a non-enzymatic mechanism, via Fenton reaction. Differences in the lignocellulose metabolism occurring even among closely related brown-rots are not completely understood, bringing attention to a multi-omics study of brown-rot L. sulphureus. Results: To evidence the oxidative-hydrolytic mechanism, the Laetiporus sulphureus ATCC 52600 genome was sequenced and the response to lignocellulosic substrates was analyzed by transcriptomics and proteomics. The transcriptomic profile in response to a short cultivation period on in natura sugarcane bagasse revealed 128 out of 12,802 upregulated transcripts. The high upregulated transcripts included a set of redox enzymes along with hemicellulases. The exoproteome in response to extended-time cultivation with Avicel, and steam-exploded sugarcane bagasse, sugarcane straw, and Eucalyptus grandis revealed 121 proteins. Contrasting to the mainly oxidative profile observed in the transcriptome, the secretomes showed a diverse hydrolytic repertoire including constitutive cellulases and hemicellulases, in addition to 19 proteins upregulated relative to glucose. The secretome produced on sugarcane bagasse was evaluated in the saccharification of pretreated sugarcane straw by supplementing a commercial cocktail. Additionally, growth analysis revealed that L. sulphureus ATCC 52600 has higher efficiency to assimilate glucose than other mono and disaccharides. Conclusion: This study shows the singularity of L. sulphureus ATCC 52600 relative to other Polyporales brown-rots, regarding the presence of cellobiohydrolase and peroxidase class II. The multi-omic analysis reinforces the oxidative-hydrolytic metabolism involved in lignocellulose deconstruction, providing insights into the overall mechanisms as well as specific proteins of each step.

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GfLaeSulp

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