Immunocytochemical localization of serotonin in the brain and pituitary gland of the platyfish, Xiphophorus maculatus.
Immunoreactive serotonin (ir-5HT) containing cells were localized in the brain and pituitary gland of the platyfish by use of immunoperoxidase procedures. In the brain, ir-neurons were found lining the wall of the third ventricle and in its lateral and posterior recesses. More caudally, ir-perikarya were found in the valvular portion of the cerebellum and in the raphe region. Ir-5HT was also localized within the pineal gland in fish that had been sacrificed before 1:00 p.m. Within the pituitary gland, ir-5HT was localized in periodic acid Schiff-positive cells of the pars intermedia of all fish while, in only a few animals, less intense immunoreactivity was also present in gonadotrophs of the caudal pars distalis.
D000818:Animals; D001921:Brain / Q000378:metabolism*; D005260:Female; D005399:Fishes / Q000378:metabolism*; D006651:Histocytochemistry; D007120:Immunochemistry; D008297:Male; D010902:Pituitary Gland / Q000378:metabolism*; D012701:Serotonin / Q000378:metabolism*
D012701:Serotonin