GEO DataSets

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) 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:

Saccharomyces cerevisiae; Schizosaccharomyces pombe

Type:

Expression profiling by array

Dataset:

GDS3725

Platform:

GPL2529

43 Samples

Download data: CEL, CHP

(Submitter supplied) An evolved strain (ECA5) presented two successive yields of bioconversion of higher alcohols to acetate esters, while its parental strain (EC1118) had a constant yield through the fermentation. Transcriptomic analysis was performed during wine fermentation in SM330 containing 8mg/L phytosterols, at 35 g/l and at 70 g/l of CO2 released. For ECA5, this corresponds to a sample before and one after the change of bioconversion yield. more...

Organism:

Saccharomyces cerevisiae

Type:

Expression profiling by array

Platform:

GPL17690

10 Samples

Download data: GPR

(Submitter supplied) This research work investigates the expression of the genes involved in flavor compound production in two hybrids between Saccharomyces cerevisiae and S. kudriavzevii under low (12°C) and moderate fermentation temperatures (28°C).

Organism:

Saccharomyces cerevisiae x Saccharomyces kudriavzevii; Saccharomyces cerevisiae

Type:

Expression profiling by array

Platform:

GPL13945

12 Samples

Download data: GPR

(Submitter supplied) Gene expression profiles of baker’s yeast during initial dough-fermentation were investigated using liquid fermentation media to obtain insights at the molecular level into rapid adaptation mechanisms of baker’s yeast. Results showed that onset of fermentation caused drastic changes in gene expression profiles within 15 min. Genes involved in the tricarboxylic acid (TCA) cycle were down-regulated and genes involved in glycolysis were up-regulated, indicating a metabolic shift from respiration to fermentation. more...

Organism:

Saccharomyces cerevisiae

Type:

Expression profiling by array

Platform:

GPL90

6 Samples

Download data

(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) 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) 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) 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) 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:

Schizosaccharomyces pombe; Saccharomyces cerevisiae

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

(Submitter supplied) This SuperSeries is composed of the SubSeries listed below.

Organism:

Saccharomyces cerevisiae

Type:

Expression profiling by array

Platforms:

GPL15078 GPL15079

12 Samples

Download data: GPR

(Submitter supplied) Experience 2: 59A vs. 59A NADH Bdh200 mM, 59A NADPH Bdh200mM and 59A NADPH Bdh300 mM

Organism:

Saccharomyces cerevisiae

Type:

Expression profiling by array

Platform:

GPL15079

9 Samples

Download data: GPR

(Submitter supplied) Experience 1: 59A vs. 59A NADPH Bdh100mM

Organism:

Saccharomyces cerevisiae

Type:

Expression profiling by array

Platform:

GPL15078

3 Samples

Download data: GPR

(Submitter supplied) Commercial brewing yeast strains are exposed to a number of potential stresses including oxidative stress. The aim of this investigation was to measure the physiological and transcriptional changes of yeast cells during full-scale industrial brewing processes with a view to determining the environmental factors influencing the cell’s oxidative stress response. Cellular antioxidant levels were monitored throughout an industrial propagation and fermentation and microarray analysis was employed to determine transcriptional changes in antioxidant-encoding and other stress response genes. more...

Organism:

Schizosaccharomyces pombe; Saccharomyces cerevisiae

Type:

Expression profiling by array

Platform:

GPL2529

17 Samples

Download data: CEL

(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) This SuperSeries is composed of the SubSeries listed below.

Organism:

Saccharomyces cerevisiae

Type:

Expression profiling by array

Platform:

GPL9825

14 Samples

Download data: TXT

(Submitter supplied) The main objective was to identify genes regulated during different stages of fermentation: bottom of the fermentor, feeding and the fermentation stage. The experiment was further validated by microbiological assays.

Organism:

Saccharomyces cerevisiae

Type:

Expression profiling by array

Platform:

GPL9825

7 Samples

Download data: TXT