We assessed the ability of MYb115 PBADsga (MYb115 PKS cluster, Fig. 1A) and MYb115 PBADnrpA (MYb115 NRPS cluster, Fig. 1B) in an induced (+ arabinose) and non-induced (− arabinose) state to protect C. elegans against Bt247 infection. This evidence concerns the gene ARAF and infection.