Figure 4.

Relative normalised gene expression of targets after injection of PAMAM-CNTs, dsRNA or PAMAM-CNT-dsRNA complexes. mtpol expression (A) was significantly decreased following injection of naked dsRNAmtpol at 72 h (P < 0.05) post-injection. mtpol expression was also significantly reduced in PAMAM-CNT-dsRNAmtpol injected larvae at 72 h (P < 0.001). Expression was significantly lower in PAMAM-CNT-dsRNAmtpol compared to dsRNAmtpol alone at 72 h (P < 0.01). α-tubulin expression (B) was significantly decreased following injection of naked dsRNAαtub (P < 0.001). The α-tubulin expression was significantly reduced in PAMAM-CNT-dsRNAαtub injected larvae (P < 0.001). Expression was significantly greater in PAMAM-CNT-dsRNAαtub compared to dsRNAαtub alone (P < 0.001). Data are presented as means ± SEM (n = 4 per treatment) as Log10 relative normalised expression. Labelling with different letters indicates significant difference between treatments (a > b > c).