Figure 8.

Pharynx functionality in apy-1(RNAi) worms. (A) Mean pharyngeal pumping rate of apy-1(RNAi) animals and N2 mock-treated animals for the indicated period of time. Error bars, SD; n = 60 for each treatment. The histogram shows the mean of three different experiments. (C and B) Ultrastructural analysis of pharynx in apy-1(RNAi) animals and N2 mock-treated animals after 3 d of treatment in sample electronic photographs from transverse section. Mar1–3 represents three marginal cells; Ph1–3 represents three pharyngeal myoepithelial cells. The lumen is the internal part of the pharynx. Arrow points to the failing loop of the pharynx. Scale bar, 1 μm.