Mitochondrial superoxide dismutase is essential for ethanol tolerance of Saccharomyces cerevisiae in the post-diauxic phase
Article Abstract:
The messenger RNA-superoxide dismutase (mRNA-SOD) levels and SOD activity in Saccharomyces cerevisiae cells were analyzed during cell growth to determine the role of SOD1- and SOD2-encoded proteins on stress tolerance. The activities of SOD1- and SOD2-encoded CuZnSOD and MnSOD increased in Saccharomyces cerevisiae during the exponential phase to the diauxic shift. The levels of mRNA-SOD1 and mRNA-SOD2 also increased during growth from the exponential to the diauxic shift phase. However, mRNA-SOD levels did not alter the sensitivity of the cells to ethanol.
Publication Name: Microbiology
Subject: Biological sciences
ISSN: 1350-0872
Year: 1997
User Contributions:
Comment about this article or add new information about this topic:
Near-UV-induced absorbance change and photochemical decomposition of ergosterol in the plasma membrane of the yeast Saccharomyces cerevisiae
Article Abstract:
The spectral profiles of cell suspensions and membrane fractions of Saccharomyces cerevisiae that were exposed to near-ultraviolet (UV) were analyzed to determine the components of the plasma membrane. Analysis of spectral absorbance changes in UV-exposed Saccharomyces cerevisiae cells indicated the presence of reduced levels of absorption spectra. The reduced levels of absorption spectra were also correlated to the chemical decomposition of ergosterol in the plasma membrane via a photochemical mechanism that was mediated by oxygen.
Publication Name: Microbiology
Subject: Biological sciences
ISSN: 1350-0872
Year: 1997
User Contributions:
Comment about this article or add new information about this topic:
Comparative physiology of salt tolerance in Candida tropicalis and Saccharomyces cerevisiae
Article Abstract:
A comparison of the relative tolerance to osmotic stress and to alkali cation toxicity of the fermentive yeast Saccharomyces cerevisiae and the respiratory yeast Candida tropicalis was made. Glucose media distinguished that C. tropicalis has a poor adaptation to osmotic stress and exhibited reduced glycerol production compared to S. cerevisiae. Trehalose was also determined as an important osmoresponsive solute in S. cerevisiae in the absence of glucose repression.
Publication Name: Microbiology
Subject: Biological sciences
ISSN: 1350-0872
Year: 1997
User Contributions:
Comment about this article or add new information about this topic:
- Abstracts: Cse4p is a component of the core centromere of Saccharomyces cerevisiae. The ways of PARP
- Abstracts: Stress-induced transcriptional activation. Double-stranded RNA viruses of Saccharomyces cerevisiae. High-osmolarity signalling in Saccharomyces cerevisiae is modulated in carbon-source-dependent fashion
- Abstracts: MIG1 overexpression causes flocculation in Saccharomyces cerevisiae. part 2 LAG2, a gene that determines yeast longevity
- Abstracts: Multiple pathways of recombination induced by double-strand breaks in Saccharomyces cerevisiae. The many interfaces of Mre11
- Abstracts: New insights into the interaction of Ras with the plasma membrane. Roles for proteolysis and trafficking in notch maturation and signal transduction