Figure 2.
Survival 1-day post-infection (dpi). The proportion of individuals surviving following a challenge when they had been previously primed with heat-killed Bacillus thuringiensis [heat-killed Bt1 (hkBt1), dark grey], saline solution (PBS, light grey), or left untreated (Naive, white). Challenge treatments are indicated in the x-axis labels: Bt1 = injected with live B. thuringiensis, PBS = injected with saline solution, Naive = untreated control. The results are reported as mean of three independent experiments ± SE. Asterisk indicates significant differences within challenge treatments (*p < 0.05).