FIG 4.

Infection of Drosophila tep2 and tep4 mutant flies with Photorhabdus alters triglyceride levels. Shown are estimations of triglyceride levels in tep loss-of-function mutants and background controls (n = 5) injected with 1× PBS (negative control), E. coli (Ec), P. luminescens (Pl), or P. asymbiotica (Pa). Triglyceride levels (micrograms) are normalized to the protein content (micrograms) and represented as a ratio of the total triglyceride content to the total protein content in tep2 mutants (A and B) and tep4 mutants (C and D) compared to the background control strains (w¹¹¹⁸ and yw, respectively) at 6 and 18 h postinfection. The means from three independent experiments are shown, and error bars represent standard deviations. Significant differences are shown with asterisks (*, P < 0.05; **, P < 0.01).