TABLE 2.

Summary of measured and calculated cell cycle parameters for B. subtilis SG38 at different growth rates

Cell cycle parameter	Culture medium
	S	TS	CH	CHG
Generation time (min)	73	58	40	30
Avg cell length (μm)	2.2	3.1	3.6	4.5
Avg cell width (μm)a	0.81 (0.093)	0.83 (0.077)	0.86 (0.072)	0.81 (0.075)
Avg DNA content/ cell (G)b
Microscopic	1.6	2.6	2.9c	3.3
Chemical	1.5	2.3	NDe	3.1
C period (min)	58	53	50	52
Birth
Length (μm)	1.6	2.2	2.6	3.0
DNA content (G)	1.3	1.7	2.0	2.3
Initiation of DNA replication
Length (μm)	2.8	2.7	4.8	4.4
Time (min)	58	19	37	17
DNA content (G)	2	2	3.6	3.2
Li (μm)f	1.4	1.4	1.3	1.1
Termination of DNA replication
Length (μm)	2.4	2.6	2.9	3.7
Time (min)	43	14	7	9
DNA content (G)	2	2	2.4	2.8
D* period (min)	30	34	34	21
Nucleoid separation
Length (μm)	3.0	3.0	3.0	3.7
Time (min)	63	26	9	10
DNA content (G)	2.2	2.3	2.5	2.9
Nucleoid bilobation
Length (μm)	2.6	2.3	4.1d	4.8d
Time (min)	49	2.6	26d	21d
DNA content (G)	2.0	1.8	3.2d	3.5d

^aValues in parentheses are standard deviations. 

^bG, the DNA content of a single completed chromosome. 

^cData from reference 15. 

^dTransition from binucleate to binucleate bilobed state. 

^eND, not done. 

^fCell length per copy of oriC.