Ultrastructure of larval and pupal cuticles from TcCHT7-deficient insects.

<p>ds<i>TcCHT7</i> or ds<i>TcVer</i> was injected at the young larval stage (200 ng per insect; n = 30). The ultrastructure of larval (A-D) and newly forming pupal (E-H) cuticles from late instar larvae and pharate pupae, respectively, was analyzed by TEM. The middle portions of the larval and pupal cuticles are enlarged in bottom panels. EN, envelope; EP, epicuticle; PRO, procuticle; PC, pore canal. Scale bar in A, C, E and G = 1 μm; B, D, F and H = 500 nm.