Figure 6.

RT-PCR profiles of 15 putative immune genes from 4 differentially challenged tissues of 5^th instar larvae. E- E. coli challenged, M- M. luteus challenged, S- saline-injected, U- unchallenged. Actin was used as an endogenous control. The GenBank accession numbers of the 15 genes are provided as additional data (see 5).