. 2016 Mar 4;7:273. doi: 10.3389/fmicb.2016.00273

Table 3.

Relative fitness (W_der) of Escherichia coli MG1655 derivative strains obtained by selection with carvacrol (CAR), citral (CIT) and (+)-limonene oxide (LIM).

Co-culture	*W_der*	W_der (ICs)
WT + CAR	0.66^a ± 0.04	0.74^a ± 0.15
WT + CIT	0.75^a ±0.01	1.36^b ± 0.05
WT + LIM	0.95^a ± 0.05	1.10^b ± 0.06

Cells from derivative strains were grown in co-culture with wild type cells (WT) at 37°C for 10 h in tryptic soy broth with yeast extract added, in absence (W_der) and presence of the same individual constituent (ICs) used as selection agents [W_der(ICs)]. Data are means of three independent observations ± standard deviations. Co-cultures involving the same strains were studied independently, thus

^a,b

same letters in each line indicate non-significant differences among mean values; p > 0.05.