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Fig. 2. PRXamide-like immunoreactivity (PRXa-LI) in fifth-instar R.
prolixus. Dorsal views of (A) brain, (B) sub-oesophageal ganglion (SOG),
(C) prothoracic ganglion and (D) the mesothoracic ganglionic mass (MTGM). In
A, putative lateral neurosecretory cells and medial neurosecretory cells are
indicated by open and filled arrows, respectively. In B, note the strong
immunoreactivity in putative neurohaemal sites on the dorsal vessel (open
arrows) and light staining over the corpus cardiacum (filled arrow). In C,
note the numerous medial processes with PRXa-LI that originate in the SOG and
project into the MTGM. In D, note the lateral paired cells (open arrows) and
the processes originating from the ventral paired neurosecretory cells (filled
arrows). Scale bar, 100 µm.