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Postembryonic development of Arg-Phe-amide-like and cholecystokinin-like immunoreactive neurons in the blowfly optic lobe
Department of Zoology, University of Lund.
1989 (English)In: Cell and Tissue Research, ISSN 0302-766X, E-ISSN 1432-0878, Vol. 256, p. 199-211Article in journal (Refereed) Published
Abstract [en]

The adult optic lobes of the blowfly Calliphoraerythrocephala were found to be innervated by more than2000 neurons immunoreactive to antisera raised against theneuropeptides FMRFamide, its fragment RFamide, andgastrin/cholecystokinin (CCK). All of the CCK-like immunoreactive(CCK-IR) neurons also reacted with antisera toRFamide, FMRFamide and pancreatic polypeptide. A fewRFamide/FMRFamide-like immunoreactive (RF-IR) neuronsdid not react with CCK antisera; they reacted insteadwith antisera to Leu-enkephalin and Met-enkephalin-Arg 6-Phe 7. The RF-IR neurons are, thus, heterogeneous withrespect to their contents of immunoreactive peptides. Twoof the RF-IR neuron types innervating the adult optic lobescould be traced in their entirety only after following theirpostembryonic development, because of the complexity ofthe trajectories of the immunoreactive neuronal process inthe adult insect. The majority of the cell bodies of the RFIRand CCK-IR neurons lie within the optic lobes andare derived from imaginal neuroblasts of the inner and outeroptic anlagen. Six of the peptidergic neurons are, however,metamorphosing larval neurons with their cell bodiesin the central part of the protocerebrum. The full extentof immunoreactivitiy is not attained in some of the neuronsuntil the late pupal or early adult stage. The larval opticcenter was also found to be innervated by neurons immunoreactivewith both RFamide and CCK antisera. The cellbodies of these RF-IR/CCK-IR neurons are located nearthe developing lamina (one on each side). In the 24 h pupa,the cell bodies of these neurons are still immunoreactive,but thereafter they cannot be immunolabeled apparentlydue to cell death or a change in transmitter phenotype. 

Place, publisher, year, edition, pages
1989. Vol. 256, p. 199-211
National Category
Medical and Health Sciences
Research subject
Natural Science, Biomedical Sciences
Identifiers
URN: urn:nbn:se:lnu:diva-1790DOI: 10.1007/BF00224735OAI: oai:DiVA.org:lnu-1790DiVA, id: diva2:308838
Available from: 2010-04-06 Created: 2010-04-06 Last updated: 2017-12-12Bibliographically approved

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Johansson, Kjell

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