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Fig. 8. Immunohistochemistry of AgCA9 protein in whole-mount larvae (A,C,D) and
longitudinal paraffin sections of larvae (B). The figure shows laser confocal
microscope images of An. gambiae larval rectum immuno-stained with
chicken antibodies 5340 (green; A,D) and 5563 (green; B) and mouse monoclonal
antibodies against Na+/K+-ATPase (red; B,C). The ileum
is indicated at the anterior end of the rectum (A,C,D). AgCA9 protein
localized to the DAR cells exclusively (A,B,D; arrow). The banding pattern
seen in the DAR cells of whole mounts of the rectum is due to the
circumferential muscles of the rectum. This is better seen in D, which shows
muscle stained with phalloidin (red). Na+/K+-ATPase
localized to the entire rectum, with the exception of the DAR cells (B,C). DAR
cells are indicated with an arrow in each image. Scale bars: 150 µm (A,C);
75 µm (B,D).