Figure 7. Two ionotropic glutamate receptors are coexpressed in the pharyngeal nervous system. A, Confocal image of a transgenic worm expressing the
glr-7::GFP transgene in the pharyngeal nervous system (head region only).B, Diagram of the pharynx and the neuronal cell bodies that express
glr-7:: GFP. C, D, Confocal images of a transgenic worm expressing
glr-8::GFP in the pharyngeal nervous system (C, head region only) and in a single neuron in the tail (arrow; D). E, F, Neuronal cell bodies that express
glr-8::GFP. Neurons filled in black coexpress
glr-7::GFP and
glr-8::GFP. Neurons filled in gray only express
glr-8:: GFP in either the pharyngeal nervous system (E; URB is the only neuron of this subset that is not considered part of the pharyngeal nervous system) or the tail (F). Scale bars, 5 um.