| Method |
(Supplementary material 1st paragraph:) "Cultures were grown overnight in XY medium (2% peptone, 1% yeast extract, 0.01% adenine, 0.02% tryptophan) containing 2% glucose, diluted ~300-fold into fresh medium and grown for at least 5 hours (which corresponded to three population doublings for wild-type) at 30°C to a final density of 0.3-3×10^7 cells/mL, a cell density range in which wild-type size distributions do not vary. To obtain each size distribution, 100µL of culture was diluted into 10mL of IsotonII, sonicated gently for 10s to disperse aggregated cells, and analyzed with a Coulter Channelizer Z2 (Beckman-Coulter). Cell size distributions were saved in a tabular form, as a function of cell counts in each of 256 size bins." |