Ontology highlight
ABSTRACT:
PROVIDER: PRJNA944577 | ENA |
REPOSITORIES: ENA
Dataset's files
| Action | DRS | |||
|---|---|---|---|---|
| SRR23969278_1.fastq.gz | Fastqsanger.gz | |||
| SRR23969278_2.fastq.gz | Fastqsanger.gz | |||
| SRR23969279_1.fastq.gz | Fastqsanger.gz | |||
| SRR23969279_2.fastq.gz | Fastqsanger.gz | |||
| SRR23969280_1.fastq.gz | Fastqsanger.gz |
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Project description:Genetic and molecular evidence to support the hypothesis that fungal secondary metabolites play a significant role in protecting the fungi against fungivory is scarce. We investigated the impact of fungal secondary metabolites on transcript regulation of stress related expressed sequence tags (ESTs) of the Collembola Folsomia candida feeding on mixed vs. single diets. Aspergillus nidulans wildtype (WT; Ascomycota) able to produce secondary metabolites including sterigmatocystin (ST) and a knockout mutant with reduced secondary metabolism (A. nidulans ΔLaeA) were combined with the high quality fungus Cladosporium cladosporioides as mixed diets or offered as single diets. We hypothesized that (i) A. nidulans WT triggers more genes associated with stress responses compared to the A. nidulans ΔlaeA strain with suppressed secondary metabolism, (ii) C. cladosporioides causes significantly different transcript regulation than the A. nidulans strains ΔlaeA and WT, and (iii) mixed diets will cause significantly different transcript expression levels than single diets. All three hypotheses are generally supported despite the fact that many functions of the affected ESTs are unknown. The results bring molecular evidence for the existence of a link between fungal secondary metabolites and responses in springtails supporting the hypothesis that fungal secondary metabolites act as a shield against fungivory.
2010-02-03 | GSE19930 | GEO
Project description:Genetic and molecular evidence to support the hypothesis that fungal secondary metabolites play a significant role in protecting the fungi against fungivory is scarce. We investigated the impact of fungal secondary metabolites on transcript regulation of stress related expressed sequence tags (ESTs) of the Collembola Folsomia candida feeding on mixed vs. single diets. Aspergillus nidulans wildtype (WT; Ascomycota) able to produce secondary metabolites including sterigmatocystin (ST) and a knockout mutant with reduced secondary metabolism (A. nidulans ?LaeA) were combined with the high quality fungus Cladosporium cladosporioides as mixed diets or offered as single diets. We hypothesized that (i) A. nidulans WT triggers more genes associated with stress responses compared to the A. nidulans ?laeA strain with suppressed secondary metabolism, (ii) C. cladosporioides causes significantly different transcript regulation than the A. nidulans strains ?laeA and WT, and (iii) mixed diets will cause significantly different transcript expression levels than single diets. All three hypotheses are generally supported despite the fact that many functions of the affected ESTs are unknown. The results bring molecular evidence for the existence of a link between fungal secondary metabolites and responses in springtails supporting the hypothesis that fungal secondary metabolites act as a shield against fungivory. Twenty-three day old Folsomia candida were fed ad libitum for five days to fungal cuts respectively Cladosporium cladosporoides, Aspergillus nidulans WT, Aspergillus nidulans ?LaeA and two mixed diets of C.cladosporoides/A. nidulans WT (mix 1) and C. cladosporoides/A. nudlans ?LaeA (mix2) respectively. Four biological replicates were used for every treatment and a dye swap was used with the Cy3/Cy5 labels. This resulted in 20 samples which were analysed in 10 hybridisations executed in an interwoven loop design. The C. cladosporoides diet was used as the reference in the data analysis.
2010-02-02 | E-GEOD-19930 | biostudies-arrayexpress
Project description:This study utilized comparative global gene expression microarray analysis to evaluate the effects of a compound including garlic-derived secondary metabolites on intestinal immunity of chicken. Two-condition experiment, Garlic metabolites-fed chickens vs. Non-treated control chickens. Biological replicates: 2 control replicates, 2 Garlic metabolites-fed replicates with dye-switching.
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Project description:Study on the chemical constituents of secondary metabolites
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Project description:We investigated the metabolism of six secondary metabolite producing fungi of the Penicillium genus, during nutrient depletion in the stationary phase of batch fermentations and assessed conserved metabolic responses across species using genome-wide transcriptional profiling. Coexpression analysis revealed that expression of secondary metabolite biosynthetic genes correlates with expression of genes associated with pathways responsible for generation of precursor metabolites for secondary metabolism. Our results highlight the main metabolic routes for precursor supply of the secondary metabolism during nutrient depletion, and suggests that regulation of fungal metabolism is tailored to meet the demands for secondary metabolite production. These findings can aid in identifying wild type species, which are optimized for production of specific secondary metabolites, and therefore can be utilized as high yielding cell factories.
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