Figure 8.

Defence-related gene expression in Kalanchoe roots pre-treated with bacterial strains DD6 or EC9 and subsequently inoculated with F. oxysporum, as described in Materials and Methods. Roots were sampled at 24 and 48 h after the inoculation. The expression of PR1 and LOX2 transcripts was determined relative to the controls (no bacteria, no F. oxysporum). Error bars represent standard error of the mean (n = 3). Different letters indicate significant differences at p ≤ 0.05. Capitalised and non-capitalised letters refer to statistical differences in the PR1 and LOX2 transcript levels, respectively.