GEO DataSets

(Submitter supplied) In this study we investigate the molecular physiology of the main S. cerevisiae commercial strain (PE-2) used on Brazilian bioethanol process under two distinct conditions: typical (TF) and flocculated (co-aggregated - FL) fermentation. Transcriptional machinery of PE-2 was assessed by high throughput sequencing-based methods (RNA-seq) during industrial fed-batch fermentations. Data from comparative analysis revealed distinct transcriptional profiles among conditions, characterized mainly by a deep gene repression on FL process.

Organism:

Saccharomyces cerevisiae

Type:

Expression profiling by high throughput sequencing

Platform:

GPL9377

13 Samples

Download data: TXT

(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

(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

(Submitter supplied) In this study, we investigated the impact of industrial antifoam agents on the physiology and transcriptome of the industrial ethanol Saccharomyces cerevisiae strain CAT-1. We showed that under industrial molasses fermentations similar to the ones used for ethanol production in Brazil, antifoam agents had detrimental effects on productivity, viability and lead to increased stress responses in yeast.

Organism:

Saccharomyces cerevisiae

Type:

Expression profiling by high throughput sequencing

Platform:

GPL13821

9 Samples

Download data: TXT

(Submitter supplied) We have previously shown that fed-batch processes with the longest uncoupling phase (ethanol adapted) were characterized by induction of storage carbohydrates, a metabolic event typical of yeast cells experiencing nutrient limitation, at the onset of this phase, whereas this metabolic event was not seen in processes with a short uncoupling phase (ethanol non adapted culture). Taken together, our results suggested that reproducible high bioethanol performance in aerated fed-batch process may be linked to the ability of yeast cells to impede ethanol toxicity by triggering a metabolic remodelling reminiscent to that of cells entering a quiescent G0/G1 state. more...

Organism:

Saccharomyces cerevisiae

Type:

Expression profiling by array

Platform:

GPL8327

4 Samples

Download data: GPR