GEO DataSets

Analysis of anaerobic chemostat cultures of Saccharomyces cerevisae exposed to one of several weak organic acids. Weak organic acids are used as preservatives in food and beverages. Yeasts are able to proliferate at the maximum legal dosage of such preservatives.

Organism:

Saccharomyces cerevisiae

Type:

Expression profiling by array, count, 5 stress sets

Platform:

GPL90

Series:

GSE5926

15 Samples

Download data: CEL

(Submitter supplied) Raw expression values (CHP data) for transcriptional profiling of the response of Saccharomyces cerevisiae to challenges with various weak organic acids Keywords: response to weak organic acids

Organism:

Saccharomyces cerevisiae

Type:

Expression profiling by array

Dataset:

GDS2925

Platform:

GPL90

15 Samples

Download data: CEL

(Submitter supplied) Aerobic, glucose-limited chemostat cultures of Saccharomyces cerevisiae grown with six different nitrogen sources were subjected to transcriptome analysis. The use of chemostats enabled an analysis of nitrogen-source-dependent transcriptional regulation at a fixed specific growth rate. A selection of preferred (ammonium and asparagine) and non-preferred (leucine, phenylalanine, methionine and proline) nitrogen sources was investigated. more...

Organism:

Saccharomyces cerevisiae

Type:

Expression profiling by array

Platform:

GPL90

15 Samples

Download data: CEL, EXP

(Submitter supplied) Transcriptional regulation of branched-chain amino acid metabolism in Saccharomyces cerevisiae involves two key regulator proteins, Leu3p and Gcn4p. Leu3p is a pathway-specific regulator, known to regulate six genes involved in branched-chain amino acid metabolism and one gene in nitrogen assimilation. Gcn4p is a global regulator, involved in the general response to amino acid and purine starvation. more...

Organism:

Saccharomyces cerevisiae

Type:

Expression profiling by array

Dataset:

GDS1103

Platform:

GPL90

12 Samples

Download data

Analysis of leu3 mutant grown in either limited ethanol or limited ammonium media. Leu3p regulates a gene involved in nitrogen assimilation and six genes involved in branched chain amino acid metabolism. Results provide insight into the role of Leu3p in gene regulation.

Organism:

Saccharomyces cerevisiae

Type:

Expression profiling by array, count, 2 genotype/variation, 2 growth protocol sets

Platform:

GPL90

Series:

GSE2076

12 Samples

Download data

(Submitter supplied) Rsf1p is a putative transcription factor required for efficient growth using glycerol as sole carbon source but not for growth on the alternative respiratory carbon source ethanol. We use microarrays to determine the differences in the transcriptional program between the Δrsf1 mutant and the wild type during respiratory growth on glycerol as well as the transition to growth on glycerol as sole carbon source. more...

Organism:

Saccharomyces cerevisiae

Type:

Expression profiling by array

Platform:

GPL90

22 Samples

Download data: CEL, CHP

(Submitter supplied) Raw expression values (CHP data) for transcriptional profiling of the response of Saccharomyces cerevisiae to challenges with lactic acid at pH 3 and pH 5. Keywords: response to lactic acid

Organism:

Saccharomyces cerevisiae

Type:

Expression profiling by array

Platform:

GPL90

12 Samples

Download data: CEL, CHP

(Submitter supplied) Saccharomyces cerevisiae is unique among yeasts for its ability to grow rapidly in the complete absence of oxygen. S. cerevisiae is therefore an ideal eukaryotic model to study physiological adaptation to anaerobiosis. Recent transcriptome analyses have identified hundreds of genes that are transcriptionally regulated by oxygen availability but the relevance of this cellular response has not been systematically investigated at the key control level of the proteome. more...

Organism:

Saccharomyces cerevisiae

Type:

Other

Platform:

GPL4992

1 Sample

Download data: XLS

(Submitter supplied) In Saccharomyces cerevisiae, glycogen and trehalose are important reserve carbohydrates that accumulate under nutrient limitation in batch cultures. An inherent draw-back of batch studies is that specific growth rate and substrate and product concentrations are variable over time and between cultures. The aim of this present study was to identify the nutritional requirements associated with high accumulation of reserve carbohydrates at a fixed specific growth rate (0.10 h-1) in anaerobic chemostat cultures that were limited by one of five different nutrients (carbon, nitrogen, sulfur, phosphorus or zinc). more...

Organism:

Saccharomyces cerevisiae

Type:

Expression profiling by array

Platform:

GPL90

21 Samples

Download data: CEL, CHP, EXP

(Submitter supplied) In this study, using DNA microarray analysis, we compared the comprehensive expression profiles of two yeast trains, i.e, the previously obtained ethanol-adapted yeast strain and the parental strain as control (FY834), under the ethanol stress condition (YPD medium contained 10% ethanol). As a result, we identified certain genes and functional categories of the genes that are possible involved in growth under the ethanol stress condition.

Organism:

Saccharomyces cerevisiae

Type:

Expression profiling by array

Platform:

GPL7698

2 Samples

Download data: GPR

(Submitter supplied) The goal of this study is to analyse how the gene expression in Saccharomyces cerevisiae changes in dependency on the glucose concentration. Therefore, fed batch cultivations were carried out, during which the glucose concentration was maintained stable for several hours. Samples were taken at different times during the cultivations, the RNA was isolated and hybridised on whole genome yeast microarrays. more...

Organism:

Saccharomyces cerevisiae

Type:

Expression profiling by array

Platform:

GPL537

7 Samples

Download data

(Submitter supplied) Physiological effects of carbon dioxide and impact on genome-wide transcript profiles were analysed in chemostat cultures of Saccharomyces cerevisiae. In anaerobic, glucose-limited chemostat cultures grown at atmospheric pressure, cultivation under CO2-saturated conditions had only a marginal (<10%) impact on the biomass yield. Conversely, a 25% decrease of the biomass yield was found in aerobic, glucose-limited chemostat cultures aerated with a mixture of 79% CO2 and 21% O2. more...

Organism:

Saccharomyces cerevisiae

Type:

Expression profiling by array

Dataset:

GDS2969

Platform:

GPL90

18 Samples

Download data: CEL, EXP

Analysis of chemostat cultures sparged with 79% or 100% carbon dioxide (CO2). During fermentation and ethanol production, CO2 is produced, saturating the fermentative broth. Results provide insight into the mechanisms underlying CO2 stress.

Organism:

Saccharomyces cerevisiae

Type:

Expression profiling by array, count, 4 dose, 2 growth protocol sets

Platform:

GPL90

Series:

GSE8900

18 Samples

Download data: CEL, EXP

(Submitter supplied) The capacity of respiring cultures of Saccharomyces cerevisiae to instantaneously switch to fast alcoholic fermentation upon a transfer to anaerobic sugar-excess conditions is a key characteristic of Saccharomyces cerevisiae in many of its industrial applications. This transition was studied by exposing aerobic glucose-limited chemostat cultures grown at a low specific growth rate to two simultaneous perturbations: oxygen depletion and relief of glucose limitation. more...

Organism:

Saccharomyces cerevisiae

Type:

Expression profiling by array

Platform:

GPL90

13 Samples

Download data: CEL, CHP, EXP

(Submitter supplied) Global transcriptional profiles of Saccharomyces cerevisiae were studied following changes in growth conditions to high hydrostatic pressure and low temperature. These profiles were quantitatively very similar, encompassing 561 co-upregulated genes and 161 co-downregulated genes. In particular, expression of the DAN/TIR cell wall mannoprotein genes, which are generally expressed under hypoxia, were markedly upregulated by high pressure and low temperature, suggesting the overlapping regulatory networks of transcription. more...

Organism:

Saccharomyces cerevisiae

Type:

Expression profiling by array

Platform:

GPL5913

3 Samples

Download data: PAIR, TXT

(Submitter supplied) This series represents the analysis of a commercial dry active yeast (purchased locally). The genetics of this sample is unknown. Keywords = commercial Keywords = dry active yeast Keywords: other

Organism:

Saccharomyces cerevisiae

Type:

Expression profiling by array

Dataset:

GDS2716

Platform:

GPL90

9 Samples

Download data: CEL, DAT, EXP

(Submitter supplied) This series represents Experiment 3 of the yeast desiccation / rehydration time course analysis. Samples include Control, 50% dry, Dry, 15 min. post rehydration, 45 min. post rehydration, 90 min. post rehydration, and 360 min. post rehydration. Keywords = BY4743 Keywords = desiccation Keywords = glucose-limited Keywords = rehydration Keywords = yeast Keywords: time-course

Organism:

Saccharomyces cerevisiae

Type:

Expression profiling by array

Dataset:

GDS2715

Platform:

GPL90

24 Samples

Download data: CEL, DAT, EXP

(Submitter supplied) This series represents Experiment 2 of the yeast desiccation / rehydration time course analysis. Samples include Control, 50% dry, Dry, 15 min. post rehydration, 45 min. post rehydration, 90 min. post rehydration, and 360 min. post rehydration. Keywords = BY4743 Keywords = desiccation Keywords = glucose-limited Keywords = rehydration Keywords = yeast Keywords: time-course

Organism:

Saccharomyces cerevisiae

Type:

Expression profiling by array

Dataset:

GDS2713

Platform:

GPL90

21 Samples

Download data: CEL, DAT, EXP

(Submitter supplied) This series represents Experiment 1 of the yeast desiccation / rehydration time course analysis. Samples include Control, 50% dry, Dry, 15 min. post rehydration, 45 min. post rehydration, 90 min. post rehydration, and 360 min. post rehydration. Keywords = BY4743 Keywords = desiccation Keywords = glucose-limited Keywords = rehydration Keywords = yeast Keywords: time-course

Organism:

Saccharomyces cerevisiae

Type:

Expression profiling by array

Dataset:

GDS2712

Platform:

GPL90

21 Samples

Download data: CEL, DAT, EXP

Comparison of commercially prepared dry active yeast and desiccated preparations of the Saccharomyces cerevisiae laboratory strain BY4743. The yeast specimens were dried by different regimens. Results provide insight into the molecular response of yeast to water removal.

Organism:

Saccharomyces cerevisiae

Type:

Expression profiling by array, count, 2 specimen, 2 stress sets

Platform:

GPL90

Series:

GSE1314

9 Samples

Download data: CEL, DAT, EXP