title: Diversity in neurohaemal organs for homologous neurosecretory cells in different insect species as demonstrated by immunocytochemistry with an antiserum to molluscan cardioexcitatory peptide.
abstract: Neurosecretory cells were histochemically identified in the thoracic ganglia of the Colorado potato beetle and Drosophila melanogaster with an antiserum to the molluscan cardioexcitatory neuropeptide FMRFamide (Phe-Met-Arg-Phe-NH2). These cells and the FMRFamide-immunoreactive neurosecretory cells identified in a locust are most likely homologous. The neurosecretory axon terminals in the 3 species use different neurohaemal organs. Such a structural diversity in release sites of apparently homologous neurosecretory cells in different species may account for the large structural variability in neurohaemal organs in insects in general.
mesh_terms: D000818:Animals; D001517:Coleoptera / Q000033:anatomy & histology; D004331:Drosophila melanogaster / Q000033:anatomy & histology; D019835:FMRFamide; D006651:Histocytochemistry; D007124:Immunoenzyme Techniques; D007313:Insecta / Q000032:analysis* / Q000033:anatomy & histology; D009419:Nerve Tissue Proteins / Q000032:analysis*; D009490:Neurosecretory Systems / Q000032:analysis* / Q000033:anatomy & histology
chemical_list: D009419:Nerve Tissue Proteins; D019835:FMRFamide