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  • 1990-1994  (2)
  • Immunocytochemistry  (1)
  • Neurosecretion  (1)
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  • 1
    ISSN: 1432-0878
    Keywords: Antennae ; Motoneurons ; Immunocytochemistry ; Cobalt labelling ; GABA ; Gryllus bimaculatus (Insecta)
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Summary In crickets, a deutocerebral motoneuron sends axon collaterals to 6 of the 7 antennal muscles. Previous results indicated that this neuron exerts inhibition on these muscles and thus may be a common inhibitory motoneuron. In our present study, we show by doublelabelling, i.e. retrograde cobalt-filling and GABA-immunocytochemistry, that this neuron is GABA-immunoreactive, thus demonstrating that one common inhibitory motoneuron is part of the antennal motor system of crickets.
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Springer
    Cell & tissue research 260 (1990), S. 95-108 
    ISSN: 1432-0878
    Keywords: Retrocerebral complex ; Neurosecretion ; DUM neurons ; Moulting ; Locusta migratoria (Insecta)
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Summary The nervus corporis cardiaci III (NCC III) of the locust Locust migratoria was investigated with intracellular and extracellular cobalt staining techniques in order to elucidate the morphology of neurons within the suboesophageal ganglion, which send axons into this nerve. Six neurons have many features in common with the ‘dorsal, unpaired, median (DUM)’ neurons of thoracic and abdominal ganglia. Three other cells have cell bodies contralateral to their axons (contralateral neuron 1–3; CN 1–3). Two of these neurons (CN2 and CN3) appear to degenerate after imaginal ecdysis. CN3 innervates pharyngeal dilator muscles via its anterior axon in the NCC III, and a neck muscle via an additional posterior axon within the intersegmental nerve between the suboesophageal and prothoracic ganglia. A large cell with a ventral posterior cell body is located close to the sagittal plane of the ganglion (ventral, posterior, median neuron; VPMN). Staining of the NCC III towards the periphery reveals that the branching pattern of this nerve is extremely variable. It innervates the retrocerebral glandular complex, the antennal heart and pharyngeal dilator muscles, and has a connection to the frontal ganglion.
    Type of Medium: Electronic Resource
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