Fig. 6

Relationship between the cell size and population density. a. Size distribution of an identical cell population. A size distribution of more than 10,000 E. coli cells growing exponentially in M63 is shown as an example. b. The relationship between the population density and cell size. E. coli cells of either the wild-type (No. 0, triangle) or the reduced (No. 28, circle) genomes were grown in M63. The cell size of the culture at various population densities was measured, and the median size of the cell population was used for analysis. The red broken lines represent the exponential regression