Fig. 5. Effect of preloading apoLpIII on flight-induced immunosuppression. ApoLpIII, crickets pre-loaded with apoLpIII (N=23); Ringer, crickets preloaded with insect Ringer (N=23); Imm. Ch., crickets injected with an immune challenge of heat killed S. marcescens (N=19); Control, crickets given the LD₅₀ challenge, but not flown or injected (N=23). Mortality was significantly less in the apoLpIII group compared with Ringer-injected crickets (G=5.8, P<0.05) and was not significantly different from controls (G=2.45, P>0.1). n.s., not significantly different.