Table 2.

D39 to D39SM ratios of viable cell counts (CFU mL⁻¹) in co-culture at the time of inoculation (T_0) and in mid-exponential phase of growth (T_MExp).

D39:D39SM ratio	Uracil (+U)			No uracil (-U)
T_0	0.94 ± 0.19	0.28 ± 0.04	4.09 ± 0.38	0.99 ± 0.42	0.23 ± 0.03	2.83 ± 0.25
	(1/1)	(1/4)	(4/1)	(1/1)	(1/4)	(3/1)
T_MExp	1.34 ± 0.45	0.43 ± 0.11	4.87 ± 0.39	0.09 ± 0.02	0.04 ± 0.01	0.40 ± 0.12
	(1/1)	(1/2)	(5/1)	(1/11)	(1/25)	(1/3)

Co-cultures of D39 wild-type and D39SM were grown as in Figure 4 and plated as in Figure S2.