Figure 1. Aphid survival in relation to pre-exposure with bacterial elicitors and subsequent challenge with S. marcescens.

A) B) In Experiment 1, while S. marcescens reduced aphid survival (pathogen-infected treatments are dotted, uninfected treatments are solid), the interaction between pre-exposure to bacterial elicitors (pre-exposed treatments are red, unprimed treatments are black) and subsequent challenge with live S. marcescens was not significant. A) Experiment 1, aphid genotype 5A0. B) Experiment 1, aphid genotype LSR1. C) In follow-up Experiment 2, giving all aphids (line 5AR) a subsequent challenge with live S. marcescens, pre-exposure did not impact survival. D) In follow-up Experiment 3, giving all aphids (genotype LSR1) a subsequent challenge with live S. marcescens, pre-exposure did not impact survival.