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Published on: April 18, 2016
Acidic media promotes quiescence entry in Saccharomyces cerevisiae
Alison C Greenlaw1,2, Toshio Tsukiyama1
1Basic Sciences Division, Fred Hutchinson Cancer Center, Seattle, WA 98109, USA.
Abstract:
Quiescence is a conserved cellular state wherein cells cease proliferation and remain poised to re-enter the cell cycle when conditions are appropriate. Budding yeast is a powerful model for studying cellular quiescence. In this work, we demonstrate that the pH of the YPD media strongly affects quiescence entry efficiency in Saccharomyces cerevisiae. Adjusting media pH to 5.5 significantly improves quiescence entry efficiency compared to unadjusted YPD media. Thermotolerance of the produced quiescence yeast are similar, suggesting the media pH influences the quantity of quiescent cells more than quality of quiescence reached.
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