GEO DataSets

Analysis of Saccharomyces cerevisiae, strain Vin13, subjected to ethanol levels up to 10% during a 15-day wine fermentation. Results provide insight into molecular mechanisms underlying the adaptive response of yeast to the long-term environmental stresses present during alcoholic fermentation.

Organism:

Saccharomyces cerevisiae

Type:

Expression profiling by array, transformed count, 6 stress, 7 time sets

Platform:

GPL90

Series:

GSE8536

21 Samples

Download data: CEL

(Submitter supplied) We used genome-wide expression analyses to study the response of Saccharomyces cerevisiae to stress throughout a 15-day wine fermentation. Forty percent of the yeast genome significantly changed expression levels to mediate long-term adaptation to an environment in which ethanol is both a stressor and a carbon source. Within this set, we identify a group of 223 genes, designated as the Fermentation Stress Response (FSR), that are dramatically and permanently induced; FSR genes exhibited changes ranging from four-to eighty-fold. more...

Organism:

Saccharomyces cerevisiae

Type:

Expression profiling by array

Dataset:

GDS3332

Platform:

GPL90

21 Samples

Download data: CEL

(Submitter supplied) DNA microarray analysis was used to profile gene expression in a commercial isolate of Saccharomyces cerevisiae grown in a synthetic grape juice medium under conditions mimicking a natural environment for yeast: High-sugar and variable nitrogen conditions. The high nitrogen condition displayed elevated levels of expression of genes involved in biosynthesis of macromolecular precursors across the time course as compared to low-nitrogen. more...

Organism:

Saccharomyces cerevisiae

Type:

Expression profiling by array

Platforms:

GPL3795 GPL66

6 Samples

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(Submitter supplied) Gene expression analysis of time course experiment of [1] a synthetic must (nitrogen-rich) fermentation by a natural wine yeast; [2] a synthetic must (nitrogen-poor) fermentation by a natural wine yeast; and [3] a synthetic must (nitrogen-poor) fermentation by a natural wine yeast, supplemented at 72 hours with 200 mg/l of nitrogen. This SuperSeries is composed of the SubSeries listed below.

Organism:

Saccharomyces cerevisiae

Type:

Expression profiling by array

Platform:

GPL3763

38 Samples

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(Submitter supplied) Gene expression analysis of a time course experiment of a synthetic must (nitrogen-poor) fermentation by a natural wine yeast, supplemented at 72 hours with 200 mg/l of nitrogen Keywords: Time course

Organism:

Saccharomyces cerevisiae

Type:

Expression profiling by array

Platform:

GPL3763

15 Samples

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(Submitter supplied) Gene expression analysis of a time course experiment of a synthetic must (nitrogen-poor) fermentation by a natural wine yeast. Keywords: Time course

Organism:

Saccharomyces cerevisiae

Type:

Expression profiling by array

Platform:

GPL3763

15 Samples

Download data

(Submitter supplied) Gene expression analysis of a time course experiment of a synthetic must (nitrogen-rich) fermentation by a natural wine yeast. Keywords: Time course

Organism:

Saccharomyces cerevisiae

Type:

Expression profiling by array

Platform:

GPL3763

14 Samples

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(Submitter supplied) In this work we evaluated the impact of nutritional unbalances, as lipids/nitrogen unbalances, on wine yeast survival during alcoholic fermentation. We showed that lipids limitations (actually ergosterol limitation) lead to a rapid loss of viability during the stationary phase of fermentation but that cell death rate is strongly modulated by the amount of nitrogen sources. Yeast survival is reduced when an excess of nitrogen is available in lipid-limited fermentations. more...

Organism:

Saccharomyces cerevisiae

Type:

Expression profiling by array

Platform:

GPL16244

4 Samples

Download data: GPR

(Submitter supplied) Laboratory strains of Saccharmoyces cerevisiae have been widely used as a model for studying eukaryotic cells and mapping the molecular mechanisms of many different human diseases. Industrial wine yeasts, on the other hand, have been selected over hundreds of years on the basis of their adaptation to stringent environmental conditions and the organoleptic properties they confer to wine. Here, we applied a two-factor design to study the response of a standard laboratory strain, CEN.PK.113-7D, and an industrial wine yeast-strain, EC1118, to growth temperature at 15°C and 30°C under 12 nitrogen-limited, anaerobic steady-state chemostat cultures. more...

Organism:

Saccharomyces cerevisiae; Schizosaccharomyces pombe

Type:

Expression profiling by array

Platform:

GPL2529

12 Samples

Download data: CEL

(Submitter supplied) A time-course transcriptomic experiment was performed in three geographically different wine yeast strains in order to test differences in gene expression as response to different nitrogen availability

Organism:

Saccharomyces cerevisiae

Type:

Expression profiling by array

Platform:

GPL13620

25 Samples

Download data: TXT

(Submitter supplied) We report the application of next-generation sequencing technology for transcription profile analysis of S. cerevisiae strains with different genetic background. By combining the whole genome sequence of these strains, we sought to explore the effects of genome mutations on the transcription diversities.

Organism:

Saccharomyces cerevisiae

Type:

Expression profiling by high throughput sequencing

Platform:

GPL13821

2 Samples

Download data: TXT

(Submitter supplied) Natural grape-juice fermentations involve the sequential development of different yeast species which strongly influence the chemical and sensorial traits of the final product. In the present study,we aimed to examine the transcriptomic response of Saccharomyces cerevisiae to the presence of Hanseniaspora guilliermondii wine fermentation.

Organism:

Saccharomyces cerevisiae; Schizosaccharomyces pombe

Type:

Expression profiling by array

Platform:

GPL2529

16 Samples

Download data: CEL

(Submitter supplied) Proanthocyanidins (PAs) could pose significant enhancement on the metabolism and fermentation efficiency of Saccharomyces cerevisiae yeast cells, which has been elucidated from metabolic level and cell phenotype in our previous work. The goals of this study are to compare the transcriptome profiling (RNA-seq) of yeast cells treated with and without PAs to explore the possible global protection mechanism. more...

Organism:

Saccharomyces cerevisiae

Type:

Expression profiling by high throughput sequencing

Platform:

GPL26171

9 Samples

Download data: XLS, XLSX

(Submitter supplied) In order to asses yeast EC1118® strain expression changes during wine alcoholic fermentation triggered by various nutrient starvations, this experiment describes the gene expression under micronutrient starvations that lead to yeast cell death (oleic acid starvation, ergosterol starvation, pantothenic acid starvation and nicotinic starvation) or allow the maintenance of yeast viability (nitrogen starvation).

Organism:

Saccharomyces cerevisiae

Type:

Expression profiling by array

Platform:

GPL17690

72 Samples

Download data: GPR

(Submitter supplied) Our study involves a transcriptomic approach to the analysis of industrial yeast metabolism. Historically, among the hundreds of yeast species, Saccharomyces cerevisiae has played an important role in scientific investigations and industrial applications, and it is universally acknowledged as one of the model systems for eukaryotic organisms. Yeast is also an important component of the wine fermentation process and determines various attributes of the final product. more...

Organism:

Saccharomyces cerevisiae; Schizosaccharomyces pombe

Type:

Expression profiling by array

Dataset:

GDS3725

Platform:

GPL2529

43 Samples

Download data: CEL, CHP

Analysis of five industrial wine yeast strains during fermentation. Yeast is an important component of wine fermentation and determines various attributes of the final product. Results provide insight into the differences in wine yeast physiology and metabolism during fermentation.

Organism:

Schizosaccharomyces pombe; Saccharomyces cerevisiae

Type:

Expression profiling by array, count, 5 strain, 3 time sets

Platform:

GPL2529

Series:

GSE11651

43 Samples

Download data: CEL, CHP

(Submitter supplied) Comparison between two commercial wine yeast strains (UCD522 and P29) differing in their production of H2S during wine fermentation.

Organism:

Saccharomyces cerevisiae

Type:

Expression profiling by array

Platforms:

GPL8589 GPL4069

2 Samples

Download data: TXT

(Submitter supplied) EKD-13 is among the recently developed mannoprotein overproducing strains. It is a recombinant derivative of the well known EC1118 commercial strain, in which the ORF of all the alleles of KNR4/SMI1 was replaced by different integration cassettes. Lack of Knr4p resulted in a negligible impairment in fermentation kinetics and a net reduction in bentonite requirements to attain complete protein stabilization of white wines made out of natural grape must. more...

Organism:

Saccharomyces cerevisiae

Type:

Expression profiling by array

Platform:

GPL11639

6 Samples

Download data: GPR, TXT

(Submitter supplied) This work was designed to identify yeast cellular functions specifically affected by the stress factors predominating during the first stages of wine fermentation and genes required for optimal growth under these conditions. The main experimental method used was quantitative fitness analysis by means of competition experiments of whole genome barcoded yeast knock-out collections in continuous culture. more...

Organism:

Saccharomyces cerevisiae

Type:

Other

Platform:

GPL17030

28 Samples

Download data: CEL

(Submitter supplied) The objective of this work is to identify, in enological condition, differences in transcriptomic regulation that may explain the differences in strains fermentation properties. For this, we compared the global expression patterns of 8 Saccharomyces cerevisiae strains with different nitrogen requirement (L2868, 4CAR1, Fermiflor, Zymasil, MTF1782, 7013, K1M, EC1118). The transcriptome was analyzed on cells fermenting in a nitrogen limited medium containing 100mg.l-1 assimilable nitrogen (SM100) and harvested at stationary phase (45g/L of CO2 produced and corresponding to 6% ethanol). more...

Organism:

Saccharomyces cerevisiae

Type:

Expression profiling by array

Platform:

GPL17690

16 Samples

Download data: GPR