Ontology highlight
ABSTRACT:
PROVIDER: PRJNA786476 | ENA |
REPOSITORIES: ENA
Dataset's files
| Action | DRS | |||
|---|---|---|---|---|
| SRR17139032_1.fastq.gz | Fastqsanger.gz | |||
| SRR17139032_2.fastq.gz | Fastqsanger.gz | |||
| SRR17139033_1.fastq.gz | Fastqsanger.gz | |||
| SRR17139033_2.fastq.gz | Fastqsanger.gz | |||
| SRR17139034_1.fastq.gz | Fastqsanger.gz |
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Project description:White rot fungi are able to degrade woody lignin and other persistent organic compounds including artificial chemicals (e.g. chlorinated dioxin) in secondary metabolism. This ability has potential in a wide range of biotechnological applications including remediation of organopollutants and the industrial processing of paper and textiles. Ligninolytic fungi secondarily secrete extracellular oxidative enzymes thought to play an important role in these compounds decay. However, detail of metabolic pathway and initiation signals of the degradation system is unclear. To investigate genes directly and indirectly related to it, we constructed long serial analysis of gene expression (Long SAGE) library from the most studied white rot fungus, Phanerochaete chrysosporium. Keywords: transcriptome profiling To analyze the transcriptome profile during the initiation of manganese peroxidase (MnP) and lignin peroxidase (LiP) production in Phanerochaete chrysosporium, we constructed the day 3 culture (just started the enzyme production) library and the day 2 culture (the activity of enzymes is not detected) library.
2007-12-30 | E-GEOD-6649 | biostudies-arrayexpress
Project description:Phanerochaete sordida Transcriptome or Gene expression
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Project description:Phanerochaete sordida Transcriptome or Gene expression
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Project description:Phanerochaete sordida YK-624 genome
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Project description:The biodegradation of lignocellulose requires the disruption of its lignin, which shields the metabolically assimilable polysaccharides in this recalcitrant natural composite. Although a variety of microorganisms can attack lignocellulose, white rot basidiomycetes are uniquely efficient at this process, cleaving the recalcitrant intermonomer linkages of lignin via extracellular oxidative mechanisms and mineralizing many of the resulting fragments to carbon dioxide via intracellular processes. Considerable progress has been made in understanding this process in the model white rot fungus Phanerochaete chrysosporium, which expresses important components of its ligninolytic system in response to nutrient limitation, as part of its secondary metabolism. Biochemical and genetic evidence point to an important role in P. chrysosporium for secreted lignin peroxidases (LiPs), manganese peroxidases (MnPs), and H2O2-producing oxidases, which are thought to work together to cleave lignin into low molecular weight fragments. However, many aspects of ligninolysis by P. chrysosporium remain poorly understood. Although a definitive picture of the entire ligninolytic system in P. chrysosporium is not yet attainable, transcriptome analyses of the fungus grown on wood can provide useful clues. With the advent of the initial genome assembly and annotations (v1.0 and v2.1), microarray-based transcriptome analysis allowed examination of transcript levels of P. chrysosporium genes when grown in ball-milled wood and in defined growth media. This approach provided useful insights but was limited to 10048 v2.1 targets and complicated by the unpredictable manner in which the fungus responds to unnatural carbon sources in submerged basal salts media. A complete, fully coordinated ligninolytic system is likely not expressed by P. chrysosporium on ball-milled wood, because a potential route for regulatory feedback has been eliminated: the cellulose and hemicellulose in this substrate is readily accessible to enzymes, and thus ligninolysis is not essential for growth. An alternative approach is to compare levels of gene expression just before and after the onset of secondary metabolism and extracellular substrate oxidation by P. chrysosporium as it utilizes solid wood as its carbon source. If this can be done, and decay of the substrate is also confirmed, then the genes undergoing marked changes in expression during the metabolic transition can be identified with greater confidence. Although not all such genes are expected to have roles in biodegradation, this strategy may identify interesting candidates for future investigation. Here we report RNAseq-based transcriptomes to characterize changes in gene expression that occur during the transition to ligninolytic metabolism. Phanerochaete chrysosporium was inoculated onto thin sections of wood. RNA was purified from colonized material after 40 and 96 hours. Single read 100 bp Illumina runs were performed.
2015-09-16 | E-GEOD-69461 | biostudies-arrayexpress
Project description:White rot fungi are able to degrade woody lignin and other persistent organic compounds including artificial chemicals (e.g. chlorinated dioxin) in secondary metabolism. This ability has potential in a wide range of biotechnological applications including remediation of organopollutants and the industrial processing of paper and textiles. Ligninolytic fungi secondarily secrete extracellular oxidative enzymes thought to play an important role in these compounds decay. However, detail of metabolic pathway and initiation signals of the degradation system is unclear. To investigate genes directly and indirectly related to it, we constructed long serial analysis of gene expression (Long SAGE) library from the most studied white rot fungus, Phanerochaete chrysosporium. Keywords: transcriptome profiling
2007-12-31 | GSE6649 | GEO
Project description:Phanerochaete sordida strain:YK-624 Transcriptome or Gene expression
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