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Localization of Allatostatin-Immunoreactive Material in the Central Nervous System, Stomatogastric Nervous System, and Gut of the Cockroach Blattella germanica

AutorMaestro, José L. ; Bellés, Xavier ; Piulachs, Maria-Dolors ; Thorpe, Alan J.; Duve, Hanne
Palabras claveBlattella germanica
Allatostatin
Peptide
Immunocytochemistry
Fecha de publicación1998
EditorJohn Wiley & Sons
CitaciónArchives of Insect Biochemistry and Physiology 37(4): 269-282 (1998)
ResumenImmunoreactivity against peptides of the allatostatin family having a typical YXFGL-NH2 C-terminus has been localized in different areas of the central nervous system, stomatogastric nervous system and gut of the cockroach Blattella germanica. In the protocerebrum, the most characteristic immunoreactive perikarya are situated in the lateral and median neurosecretory cell groups. Immunoreactive median neurosecretory cells send their axons around the circumesophageal connectives to form arborizations in the anterior neuropil of the tritocerebrum. A group of cells in the lateral aspect of the tritocerebrum project to the antennal lobes in the deutocerebrum, where immunoreactive arborizations can be seen in the periphery of individual glomeruli. Nerve terminals were shown in the corpora allata. These terminals come from perikarya situated in the lateral neurosecretory cells in the pars lateralis and in the subesophageal ganglion. Immunoreactive axons from median neurosecretory cells and from cells positioned in the anteriormost part of the tritocerebrum enter together in the stomatogastric nervous system and innervate foregut and midgut, especially the crop and the valve between the crop and the midgut. The hindgut is innervated by neurons whose perikarya are located in the last abdominal ganglion. Besides immunoreactivity in neurons, allatostatin-immunoreactive material is present in endocrine cells distributed within the whole midgut epithelium. Possible functions for these peptides according to their localization are discussed. © 1998 Wiley-Liss, Inc.
Versión del editorhttp://doi.org/10.1002/(SICI)1520-6327(1998)37:4<269::AID-ARCH2>3.0.CO;2-M
URIhttp://hdl.handle.net/10261/147917
DOI10.1002/(SICI)1520-6327(1998)37:4<269::AID-ARCH2>3.0.CO;2-M
Identificadoresissn: 0739-4462
e-issn: 1520-6327
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