Pst DC3000 inoculation and Na defensin silencing decreases leaf area damage by M. sexta larvae in N. attenuata. A) Mean (± SE) percentage of leaf area damage by M. sexta larvae on WT plants and irdefensin lines 76 and 96. A neonate larva was placed in a clip cage and allowed to feed for 12 days before the percentage of leaf area damage was estimated. B) Photographs taken after 12 days of M. sexta feeding on WT and irdefensin lines 76 and 96 that were either uninduced (left) or inoculated with Pst DC3000 (right). Different letters indicate significant differences between treatments and genotypes (N = 18).