Fig. 8

Principal component analysis of transcriptomic variation. Variation is assessed for npr-1(ur89) and N2 upon exposure to pathogens (B-18247 and PA14) and the control bacterium OP50. N2 is shown in blue whereas npr-1(ur89) is shown in red. Light and dark colors indicate the early and late time point, respectively (12 h versus 24 h). Filled and open symbols denote exposure to pathogens (B-18247 and PA14) and control bacteria (OP50), respectively. NGM is the nematode growth medium enriched with peptone for the PA14 assay plates, PFM refers to peptone-free NGM used for the B-18247 assay plates