Transition between fermentation and respiration determines history-dependent behavior in fluctuating carbon sources

Life Sciences & Biomedicine - Other Topics 0301 basic medicine Saccharomyces cerevisiae Proteins Time Factors QH301-705.5 Science Genes, Fungal Carbohydrates NUCLEAR-PORE COMPLEX SIGNAL-TRANSDUCTION Cell Count Saccharomyces cerevisiae YEAST SACCHAROMYCES-CEREVISIAE CATABOLITE INACTIVATION cellular memory GLUCOSE 03 medical and health sciences Oxygen Consumption Gene Expression Regulation, Fungal single-cell analysis Gene Regulatory Networks RNA, Messenger Biology (General) Biology GAL GENES Cell Nucleus Science & Technology Gene Expression Profiling Q R ENVIRONMENTAL-CHANGES Aerobiosis Carbon TRANSCRIPTIONAL MEMORY CELLULAR MEMORY Fermentation Mutation lag phase Medicine glucose repression gene regulation Life Sciences & Biomedicine metabolic shift MALTOSE TRANSPORTER Computational and Systems Biology
DOI: 10.7554/elife.39234 Publication Date: 2018-10-09T12:00:27Z
ABSTRACT
Cells constantly adapt to environmental fluctuations. These physiological changes require time and therefore cause a lag phase during which the cells do not function optimally. Interestingly, past exposure an condition can shorten needed when re-occurs, even in daughter that never directly encountered initial condition. Here, we use molecular toolbox of Saccharomyces cerevisiae systematically unravel mechanism underlying such history-dependent behavior transitions between glucose maltose. In contrast previous hypotheses, does depend on persistence proteins involved metabolism specific sugar. Instead, presence induces gradual decline cells’ ability activate respiration, is metabolize alternative carbon sources. results reveal how trans-generational central generate yeast, provide mechanistic framework for similar phenomena other cell types.
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