Figure 7: Cell-size variation and size homoeostasis.
From: Single-cell dynamics of the chromosome replication and cell division cycles in mycobacteria
(a-d) Time-lapse microscopy of bacteria expressing Wag31-GFP. Images recorded at 10-min intervals. This experiment was repeated three times with similar results. Graphs depict birth length (Lb) versus (a) elongation length from birth to next division (r=0.20), (b) length at division (r=0.83), (c) interdivision time (r=−0.42) and (d) fold-increase in length between birth and next division (r=−0.60). Grey circles represent single-cell values. Black circles represent mean values±s.d. for cells binned by Lb. Dashed red line, data fitted to a linear function. In the Ld versus Lb plot, the black solid line represents theoretical fit of the data for cells that precisely double their length before dividing. r values, Pearson's correlation coefficient (n=520).
