Figure 4. (A) The plastic bag assay recapitulates the results of a 96-well assay in a comparison between wild-type and Bc/imd larvae. Mortality of D. melanogaster was documented 48h after the infection with different doses of H. bacteriophora in plastic bags at 29°C, (B) a Bc/imd larva infected with H. bacteriophora harbouring GFP-expressing P. luminescens, visualized under UV light (upper part, arrows – note the nematodes which are visible as black shades in an green fluorescent background due to systemic infection with GFP-expressing Photorhabdus) and normal light (lower part).