Figure 2From: Insect immunity: oral exposure to a bacterial pathogen elicits free radical response and protects from a recurring infectionThe immune assays from differently primed larvae 120Â h after the initial exposure. Ec stands for the control bacterium, E. coli, and Sm for S. marcescens. Asterisk (*) indicates a significant (<0.05) difference between the oral priming treatments. The amount of ROS in the haemolymph (a), the lytic activity (b) and the PO activity (c).Back to article page