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Expression analysis of trichostatin A-treated Aspergillus fumigatus Af293

ABSTRACT: Investigation of whole genome gene expression level changes in trichostatin A (TSA)-treated A. fumigatus Af293 compared to non-treated A. fumigatus Af293.

ORGANISM(S): Aspergillus fumigatus Af293

PROVIDER: GSE19682 | GEO | 2010/06/30

SECONDARY ACCESSION(S): PRJNA122511

REPOSITORIES: GEO

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Expression analysis of trichostatin A-treated Aspergillus fumigatus Af293

Project description:Investigation of whole genome gene expression level changes in trichostatin A (TSA)-treated A. fumigatus Af293 compared to non-treated A. fumigatus Af293. Species: Aspergillus fumigatus; Strain: Af293; Type of array: Eukaryotic Expression (4plex, 2plex for a TSA-treated sample and 2plex for a non-treated sample); Technical replicates: Two per treatment.

2010-06-30 | E-GEOD-19682 | biostudies-arrayexpress

Aspergillus fumigatus Af293

Project description:Expression analysis of trichostatin A-treated Aspergillus fumigatus Af293

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Comparative genomic hybridization of Aspergillus fumigatus Af71, Aspergillus fumigatus Af294, Aspergillus clavatus, Neosartorya fenneliae and Neosartorya fischeri with Aspergillus fumigatus Af293

Project description:Genomic DNA from five strains, Aspergillus fumigatus Af71, Aspergillus fumigatus Af294, Aspergillus clavatus, Neosartorya fenneliae, and Neosartorya fischeri, were co-hybridized with that of Aspergillus fumigatus Af293 and compared.

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Transcriptome profiles of wild-type (AF293) and several mutants in Aspergillus fumigatus by RNA-Seq.

Project description:The mRNA profiles of [delta]rgsA, [delta]nopA, [delta]rgdA ([delta]swi4), [delta]mbpA ([delta]swi6) mutants and wild-type (AF293) of A. fumigatus.

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Aspergillus fumigatus Af293

Project description:Aspergillus fumigatus Af293 Transcriptome or Gene expression

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Gene expression in Aspergillus fumigatus at different developmental stages

Project description:Microarray analysis was used to compare different divelopmental stages of the filamentous fungi Aspergillus fumigatus af293. Cells were grone for various times and comparisons made between: 1. Dormant conidia (0 hours) and isotropically expanding cells (1hr). 2. Dormant conidia (0 hours) and isotropically expanding cells (2hr) . 3. Dormant conidia (0 hours) and isotropically expanding cells (4hr). 4. Isotropically expanding cells (4hr) and polarity extending cells (6hr). 4. Isotropically expanding cells (4hr) and germ tube (8hr).

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Aspergillus fumigatus Af293 response to lactic acid bacteria antifungal activity

Project description:The effect of cell free supernatant from the antifungal strain Lactobacillus plantarum 16 on the growth of Aspergillus fumigatus Af293 was assessed. Transcriptome analysis of the genome was performed after ten minutes exposure to antifungal supernatant in order to determine the molecular targets involved in inhibtion.

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Transcription profiling of Aspergillus fumigatus Af293 after temperature shifting

Project description:Experimental factor: Time after the temperature shift from 30C to 37C or 30C to 48C. Conidia (5x106 /ml) from Aspergillus fumigatus Af293 were incubated in the CM medium for germination (~ 17 hrs) at 30C. The culture was transferred to a water bath of 37C or 48C for continued growth. Samples were taken after the defined time (i.e. 0, 15, 30, 60, 120, and 180 min.).

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Project description:Glucose is a widely used carbon source in laboratory practice to culture Aspergillus fumigatus, however, glucose availability is often low in its “natural habitats” including the human body. We used a physiological–transcriptomical approach to reveal differences between A. fumigatus Af293 cultures incubated on glucose, glucose and peptone, peptone (carbon limitation), or without any carbon source (carbon starvation). Autolytic cell wall degradation was upregulated by both carbon starvation and limitation. The importance of autolytic cell wall degradation in adaptation to carbon stress was also highlighted by approximately 12.4% of the A. fumigatus genomes harbor duplication of genes involved in N-acetyl glucosamine utilization. Glucose withdrawal increased redox imbalance, altered both the transcription of antioxidative enzyme genes and oxidative stress tolerance, downregulated iron acquisition, but upregulated heme protein genes. Transcriptional activity of the Gliotoxin cluster was low in all experiments, while the Fumagillin cluster showed substantial activity both on glucose and under carbon starvation, and the Hexadehydro-astechrome cluster only on glucose. We concluded that glucose withdrawal substantially modified the physiology of A. fumigatus including processes that contribute to virulence. This may explain the challenge of predicting the in vivo behavior of A. fumigatus based on data from glucose rich cultures.

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