D. melanogaster Tep2 and Tep6 differentially regulate the activation of immune pathways against Photorhabdus. Transcript levels for (A, B) Defensin (Toll pathway), (C, D) Diptericin (IMD pathway), (E, F) Tot-M (JAK/STAT pathway) and (G, H) Puckered (JNK pathway) in loss-of function tep2 and tep6 mutants with their corresponding control strain (w1118) at 6 and 18 hpi with 1XPBS, E. coli (Ec), P. luminescens (Pl) or P. asymbiotica (Pa) (n = 3 individuals per experimental condition). Gene transcript levels are shown as relative abundance of transcripts normalized to RpL32 and expressed as a ratio compared with untreated flies (negative control). Values represent the means from 3 biologic replicates and error bars represent standard deviations. Significant differences are indicated with asterisks; *p <0.05, **p <0.01, ***p <0.001, ****p <0.0001).