Figure 1.
Growth curves of calibrated cell density per ml of ancestral isolates of each species over 96 h on the three experimental media: (a) beech-leaf tea, (b) pH5 beech tea and (c) spruce tea. Curves show the averages across three replicates per species and standard errors are shown. Malthusian growth rates over the first 24 h did not vary significantly among environments (F2,105 = 1.25, p = 0.29). Maximum yields did vary significantly among environments (F2,105 = 4.13, p = 0.019), being marginally higher in pH5 and lower in spruce tea.