GEO DataSets

(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) 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 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

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) 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) 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

Download data

(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

Download data

(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) An eQTL analysis show that mutations in PDR8 gene in 59A strain versus S288c could trigger expressions variations of QDR2. In order to confirm this result and highlight other gene expression variations associated to PDR8 allelic variation, we performed an allele switch of PDR8 in 59A background (59A PDR8-S288c) and compared the transcriptomic profile of this strain to 59A. The analysis was performed in wine alcoholic fermentation conditions in stationary phase during nitrogen starvation and in alcoholic stress. more...

Organism:

Saccharomyces cerevisiae

Type:

Expression profiling by array

Platform:

GPL16012

6 Samples

Download data: GPR

(Submitter supplied) We performed here the transcriptomic profile of 44 segregants from a cross between S288c and 59A (a spore of EC1118 strain). The analysis was performed in wine fermentation condition in stationary phase during nitrogen starvation and in alcoholic stress. These data, associated with an individual genotyping by Affymetrix array allow us to highlight genetic variations involved in perturbation of regulatory network and fermentative behavior.

Organism:

Saccharomyces cerevisiae

Type:

Expression profiling by array

Platform:

GPL16012

56 Samples

Download data: GPR

(Submitter supplied) Comparative gene expression analysis of two wine yeast strains at three time points (days 2, 5 and 14) during fermentation of colombar must. In our study we conducted parallel fermentations with the VIN13 and BM45 wine yeast strains in two different media, namely MS300 (syntheticmust) and Colombar must. The intersection of transcriptome datasets from both MS300 (simulated wine must;GSE11651) and Colombar fermentations should help to delineate relevant and ‘noisy’ changes in gene expression in response to experimental factors such as fermentation stage and strain identity.

Organism:

Saccharomyces cerevisiae; Schizosaccharomyces pombe

Type:

Expression profiling by array

Platform:

GPL2529

17 Samples

Download data: CEL, CHP

(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:

Schizosaccharomyces pombe; Saccharomyces cerevisiae

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) 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) 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:

GPL66 GPL3795

6 Samples

Download data

(Submitter supplied) To assess the impact of a higher oligopeptide assimilation mediated by Fot1/2, oligopeptides transporters acquired by HGT on wine yeast cell metabolism in winemaking conditions,we carried out a comparison of transcriptomic profiles of the wine wild type strain 59A and the deletion mutant of FOT1/2 genes during exponential growth.

Organism:

Saccharomyces cerevisiae

Type:

Expression profiling by array

Platform:

GPL17690

15 Samples

Download data: GPR

(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) Oxygen additions play a critical role in winemaking. However, few studies have focused on how this oxygen affects yeast metabolism and physiology in wine making conditions. We performed microarrays to unveil the oxygen response in wine making conditions.

Organism:

Saccharomyces cerevisiae EC1118; Saccharomyces cerevisiae; Schizosaccharomyces pombe

Type:

Expression profiling by array

Platform:

GPL2529

12 Samples

Download data: CEL

(Submitter supplied) Industrial wine yeast strains are geno- and phenotypically highly diversified, and have adapted to the ecological niches provided by industrial wine making environments. These strains have been selected for very specific and diverse purposes, and the adaptation of these strains to the oenological environment is a function of the specific expression profiles of their genomes. It has been proposed that some of the primary targets of yeast adaptation are functional binding sites of transcription factors (TF) and the transcription factors themselves. more...

Organism:

Saccharomyces cerevisiae; Saccharomyces cerevisiae Vin13; Schizosaccharomyces pombe

Type:

Expression profiling by array

Platform:

GPL2529

6 Samples

Download data: CEL