title: Monoamine-containing neurons and their projections in the brain (supraoesophageal ganglion) of cockroaches. AN aldehyde fluorescence study.
abstract: Fluorogenic monoamines were studied in the brain of three cockroach species by use of aldehyde-fluorescence techniques. All three optic ganglia contain fluorogenic monoamines. The lamina contains fibres with an indolylalkylamine-fluorophore. The medulla is innervated by local CA neurons which contribute to four fluorescent strata. The lobula receives both CA- and 5-HT-fibres, predominantly of central origin. CA occur in almost all areas of the brain. The areas are interconnected by a CA-fibre system. All parts of the mushroom body are innervated by CA-fibres from the surrounding neuropil. The CA innervation in the mushroom body divides it into a fronto-ventral part (alpha-lobe, beta-lobe, anterio-ventral peduncle) and a dorso-caudal part (caudo-dorsal peduncle, calices) leaving a fluorescence-free central part of the peduncle in between. CA-fibres run between the mushroom bodies of both hemispheres and also between the mushroom body and the lobula. The central body complex contains CA. The pons aggregates indolylalkylamine-containing fibres. The olfactory glomeruli are surrounded by CA-fibres originating from deutocerebral cell bodies. CA-fibres are further linked to the protocerebral neuropil. CA-fibre tracts pass from the brain to the suboesophageal ganglion and the stomatogastric nervous system. The cell bodies of the frontal ganglion are of indolylalkylamine type. Non-fluorescent neuropils (n. ocellaris, tractus olfactorio-globularis, lobus glomerulatus) are innervated by the CA-fibre system.
mesh_terms: D000447:Aldehydes; D000818:Animals; D001921:Brain / Q000378:metabolism*; D002395:Catecholamines / Q000378:metabolism*; D003058:Cockroaches / Q000378:metabolism*; D005260:Female; D008297:Male; D008856:Microscopy, Fluorescence; D009474:Neurons / Q000378:metabolism; D012701:Serotonin / Q000378:metabolism*
chemical_list: D000447:Aldehydes; D002395:Catecholamines; D012701:Serotonin