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ABSTRACT: white rot fungi Lenzites gibbosa sequencing

PROVIDER: PRJNA628131 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	SRR11617831_1.fastq.gz	Fastqsanger.gz
	SRR11617831_2.fastq.gz	Fastqsanger.gz
	SRR11617832_1.fastq.gz	Fastqsanger.gz
	SRR11617832_2.fastq.gz	Fastqsanger.gz
	SRR11617833_1.fastq.gz	Fastqsanger.gz

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Gene expression at the transcriptional level of the white-rot fungus Lenzites gibbosa during wood degradation.

Project description:To determine the wood degradation mechanism and its key genes of Lenzites gibbosa, we sequenced 15 transcriptomes of mycelial samples under woody environments at 3, 5, 7, and 11 d (D3, D5, D7, and D11) and non-woody environments (CK). All the transcripts were annotated as much as possible in eight databases to determine their function. The key genes and biological processes, relating to wood degradation, were predicted and screened. A total of 2069 differentially expressed genes (DEGs) were obtained in ten differential groups. Comparing wood with non-wood treatment conditions, the key genes were those participating in oxidation-reduction process, they were oxidoreductases and peroxidases genes, and their regulators genes; these genes mainly focused on the three biological processes of carbohydrate metabolism, lignin catabolism, and secondary metabolites biosynthesis, transport and catabolism. The mostly enriched subcategories in molecular function were oxidoreductase activity, peroxidase activity, and heme binding in GO annotation. One cellulose and hemicellulose degradation pathway and seven pathways related to lignin-derived aromatic compounds degradation or late lignin degradation were found. In conclusion, during the process of L. gibbosa growing on wood, gene expression at the transcriptional level indicated that lignin catabolism and hyphal growth were promoted, but the metabolism of carbon and carbohydrates including cellulose in lignocellulose in overall trend was inhibited to some extent. The results have important reference value for the study of degradation mechanism of wood white rot.

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Gene expression at the transcriptional level of the white-rot fungus Lenzites gibbosa during wood degradation.

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Project description:Unique ability of basidiomycete white rot fungi to degrade all components of plant cell walls makes them indispensable organisms in global carbon cycle. In this study, we analyzed proteomes of two closely related white rot fungi, Obba rivulosa and Gelatoporia subvermispora, while growing on solid spruce wood, and defined a core set of CAZymes that was shared between these species including the orthologous enzymes. Similar production pattern of these CAZymes indicate their key role in plant biomass degradation and need for their further biochemical characterization. The obtained results give an insight into specific enzymes and enzyme sets that are produced during the degradation of solid spruce wood. These findings expand the knowledge on enzyme production in nature-mimicking conditions and may contribute to exploitation of white rot fungi and their enzymes in biotechnological applications.

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