Fig. 4
From: The distinct cell physiology of Bradyrhizobium at the population and cellular level
B. japonicum tend to display a fitness advantage over B. diazoefficiens during lag to early-exponential phase. Pairwise competition experiments between Bd110::gfp + and Bd122 (purple), Bd110 (green), Bj6 (red) and, Bj109 (blue) was performed as described in material and methods. For each time point OD450nm was determined. (a) Relative fitness at early (3 days), late exponential (7 days) and stationary phase (10 days) of growth in co-culture. The Bd110 against the same strain expressing gfp was taken as reference for relativizing fitness (green dotted line). Points represent mean with SEM (n = 4). Statistical differences were computed using Two-way ANOVA and Holm-Sidak for multiple comparisons. * and ** mean p < 0.05 and p < 0.01 respectively. (b) A representative dataset where Wrel (left axis, filled dots, dotted connecting lines) and OD450nm (right axis, solid connecting lines, empty dots) at each time point were plotted as a function of elapsed time since the beginning of the experiment