Saccharomyces cerevisiae
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ABSTRACT:
PROVIDER: PRJNA141227 | ENA |
REPOSITORIES: ENA
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Project description:Oxidative stress is experienced by all aerobic organisms and results in cellular damage. The damage caused during oxidative stress is particular to the oxidant challenge faced, and so too is the induced stress response. The eukaryote Saccharomyces cerevisiae is sensitive to low concentrations of the lipid hydroperoxide - linoleic acid hydroperoxide (LoaOOH) - and its response is unique relative to other peroxide treatments. Part of the yeast response to LoaOOH includes a change in the cellular requirement for nutrients, such as sulfur, nitrogen and various metal ions. The metabolism of sulfur is involved in antioxidant defence, although the role nitrogen during oxidative stress is not well understood. Investigating the response induced by yeast to overcome LoaOOH exposure, with a particular focus on nitrogen metabolism, will lead to greater understanding of how eukaryotes survive lipid hydroperoxide-induced stress, and associated lipid peroxidation, which occurs in the presence of polyunsaturated fatty acids. We used genome-wide microarrays to investigate the changes in gene expression of S. cerevisiae (Dal80Δ) to LoaOOH-induced oxidative stress.
2014-02-13 | GSE54951 | GEO
Project description:High resolution chromatin dynamics during a yeast stress response
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Project description:Samples GSM206658-GSM206693: Acquired Stress resistance in S. cerevisiae: NaCl primary and H2O2 secondary Transcriptional timecourses of yeast cells exposed to 0.7M NaCl alone, 0.5mM H2O2 alone, or 0.5mM H2O2 following 0.7M NaCl, all compared to an unstressed sample. Repeated using msn2∆ strain. Samples GSM291156-GSM291196: Transcriptional response to stress in strains lacking MSN2 and/or MSN4 Transcriptional timecourses of yeast cells (WT, msn2∆, msn4∆, or msn2∆msn4∆) exposed to 0.7M NaCl for 45 minutes or 30-37˚C Heat Shift for 15 min compared to an unstressed sample of the same strain. Keywords: Stress Response
2008-09-05 | GSE8335 | GEO
Project description:Yeast Genomic Expression Patterns in Response to Patulin and Ascorbic acid
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Project description:The model yeast species Saccharomyces cerevisiae is used in many fundamental and applied research applications, including biosensors and production of many compounds. However, given the enormous work invested in the studies of yeast transcription response to various conditions, there are still substances not explored in this regard. In this work, we explore the transcriptional response of S. cerevisiae to a wide range of concentrations of the D-enantiomer of lactic acid and compare it to the response to L-lactic acid. Of these conditions, we only recorded a transcriptional response to the relatively high concentrations of DLA of 5 and 45 mM, as well as to 45 mM LLA. Our data did not reveal any natural yeast promoters that quantitatively sense D-lactic acid but provide the first description of the transcriptome-wide response to DLA, as well as enrich our understanding of the LLA response.
2023-05-19 | GSE231937 | GEO
Project description:Oxidative stress is a harmful condition in a cell, tissue, or organ, caused by an imbalnace between reactive oxygen species and other oxidants and the capacity of antioxidant defense systems to remove them. The budding yeast S. cerevisiae has been the major eukaryotic model for studies of response to oxidative stress. We used microarrays to study the genome-wide temporal response of the yeast S. cerevisiae to oxidative stress induced by cumene hydroperoxide. Keywords: time course
2007-10-24 | GSE7645 | GEO