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TRP1 prototrophy confers growth advantage in the presence of SDS.

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posted on 11.03.2019, 17:29 authored by Lea Schroeder, Amy E. Ikui

(A) The indicated cells were 10-fold serially diluted onto YPD or SD plates with or without 0.0075% SDS. (B) Log phase cells of the genotype ade2-1 his3-11,15 leu2-3,112 trp1-1 ura3-1 (trp1-1) and isogenic TRP1 cells (TRP1) were grown in YPD with or without SDS (0.001%). Every hour for 4 hours the optical density (OD) was read and an aliquot of cells was stained with propidium iodide and analyzed by FACS. The bottom row is an example of the FACS readings at the 4 hour time-point and the gating used to determine live vs dead cells. The graph on the left indicates the percentage of dead cells. The graph on the right indicates the doubling times as the slope of the line determined by plotting log2 of the optical density reading vs. time.

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