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- W1964826448 abstract "Aims The present work aimed at identifying the metabolic response to acid stress and the mechanisms that lead to cell tolerance and adaptation. Methods and Results Two strategies were used: screening deletion mutants for cell growth at neutral and acid pH compared to wild type and measurement by qPCR of the expression of yeast genes involved in different pathways. Conclusions The results complement our previous findings and showed that the Cell Wall Integrity pathway is the main mechanism for cell tolerance to acid pH, and this damage triggers the protein kinase C (PKC) pathway mainly via the Wsc1p membrane sensor. In addition, cell wall injury might mimic the effects of high osmotic shock and activates the High Osmolarity Glycerol pathway, which amplifies the signal in the upper part of PKC pathway and leads to the activation of Ca2+ channels by SLT2 overexpression and this Ca2+ influx further activates calcineurin. Together, these mechanisms induce the expression of genes involved in cell cycle regulation and cell wall regeneration. Significance and Impact of the Study These interactions are responsible for long-term adaptation of yeast cells to the acidic environment, and the results could drive future work on the genetic modification of yeast strains for high tolerance to the stresses of the bioethanol fermentation process." @default.
- W1964826448 created "2016-06-24" @default.
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- W1964826448 date "2012-07-17" @default.
- W1964826448 modified "2023-10-18" @default.
- W1964826448 title "Participation of CWI, HOG and Calcineurin pathways in the tolerance of Saccharomyces cerevisiae to low pH by inorganic acid" @default.
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- W1964826448 doi "https://doi.org/10.1111/j.1365-2672.2012.05362.x" @default.
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