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  • Immunocytochemistry  (4)
  • Antennae  (1)
  • Dopamin  (1)
  • 1
    Digitale Medien
    Digitale Medien
    GABA-like immunoreactivity in a common inhibitory neuron of the antennal motor system of crickets (1990)
    Springer
    Cell & tissue research 260 (1990), S. 349-354 
    Details
    ISSN: 1432-0878
    Schlagwort(e): Antennae ; Motoneurons ; Immunocytochemistry ; Cobalt labelling ; GABA ; Gryllus bimaculatus (Insecta)
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Biologie , Medizin
    Notizen: 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.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF00318637
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  • 2
    Digitale Medien
    Digitale Medien
    Serotonin-immunoreactive and dopamine-immunoreactive neurones in the terminal ganglion of the cricket, Acheta domestica: Light- and electron-microscopic immunocytochemistry (1987)
    Springer
    Cell & tissue research 250 (1987), S. 167-180 
    Details
    ISSN: 1432-0878
    Schlagwort(e): Serotonin ; Dopamin ; Immunocytochemistry ; Terminal ganglion ; Acheta domestica
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Biologie , Medizin
    Notizen: Summary The distribution and ultrastructure of serotonin- and dopamine-immunoreactive (5-HTi and DAi) neurones have been investigated in the terminal ganglion of the cricket, Acheta domestica, using a pre-embedding chopper technique. Special attention has been paid to the immunoreactive structures in the neuropil. 5-HTi structures are extensively distributed and densely packed throughout the 5 neuromeres of the terminal ganglion and originate from several interneurones and efferent neurones. In contrast, DAi fibres are distributed sparsely although they extend to all neuromeres of the ganglion and originate from 6 interneurons only. For both 5-HTi and DAi neurones characteristic axonal projections and branching patterns can be distinguished. The 5-HTi axons exhibit rich varicose arborizations, whereas DAi neurones possess fewer varicosities in the neuropil. Electron microscopy shows that 5-HTi varicosities contain small (∼ 60 nm) and large (∼ 100 nm) agranular vesicles, and large (∼ 100 nm) granular vesicles, whereas in DAi varicosities small (∼ 60 nm) agranular and large (∼ 100 nm) granular vesicles are seen. Both 5-HTi and DAi varicosities form synaptic contacts. We conclude that both serotonin and dopamine may be used as neurotransmitters in the terminal ganglion of the cricket.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF00214668
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  • 3
    Digitale Medien
    Digitale Medien
    Distribution of serotonin-containing neurons in the central nervous system of the snail Helix pomatia (1989)
    Springer
    Cell & tissue research 257 (1989), S. 313-323 
    Details
    ISSN: 1432-0878
    Schlagwort(e): Serotonin (5HT) ; Immunocytochemistry ; 5,6-Dihydroxytryptamine ; Central nervous system ; Helix pomatia (Mollusca)
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Biologie , Medizin
    Notizen: Summary The distribution of serotonin (5HT)-containing neurons in the central nervous system of the snail Helix pomatia has been determined in whole-mount preparations by use of immunocytochemical and in vivo 5,6-dihydroxy-tryptamine labelling. 5HT-immunoreactive neuronal somata occur in all but the buccal and pleural ganglia. Immunoreactive fibres are present throughout the central nervous system. The 5HT-immunoreactive neuronal somata characteristically appear in groups, located mainly in the cerebral, pedal, visceral and right parietal ganglia. The majority of 5HT-immunoreactive neurons is located in the pedal ganglia. Additionally a dense network of 5HT-immunoreactive varicose fibres is found in the neural sheath of the central nervous system including all the nerves and ganglia. The number and distribution of 5HT-immunoreactive neurons correlates with that demonstrated by 5,6-dihydroxytryptamine labelling method.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF00261835
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  • 4
    Digitale Medien
    Digitale Medien
    Pigment-dispersing hormone-like immunoreactive neurons in the central nervous system of the gastropods, Helix pomatia and Lymnaea stagnalis (1999)
    Springer
    Cell & tissue research 295 (1999), S. 339-348 
    Details
    ISSN: 1432-0878
    Schlagwort(e): Key words Pigment-dispersing hormone ; Immunocytochemistry ; Central nervous system ; Gastropoda ; Helix pomatia ; Lymnaea stagnalis (Mollusca)
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Biologie , Medizin
    Notizen: Abstract By using an antiserum raised against a crustacean β-pigment-dispersing hormone (PDH), the distribution and chemical neuroanatomy of PDH-like immunoreactive neurons was investigated in the central nervous system of the gastropod snails, Helix pomatia and Lymnaea stagnalis. The number of immunoreactive cells in the Helix central nervous system was found to be large (700–900), whereas in Lymnaea, only a limited number (50–60) of neurons showed immunoreactivity. The immunostained neurons in Helix were characterized by rich arborizations in all central ganglia and revealed massive innervation of all peripheral nerves and the neural (connective tissue) sheath around the ganglia and peripheral nerve trunks. A small number of Helix nerve cell bodies in the viscero-parietal ganglion complex were also found to be innervated by PDH-like immunoreactive processes. Hence, a complex central and peripheral regulatory role, including neurohormonal actions, is suggested for a PDH-like substance in Helix, whereas the sites of action may be more limited in Lymnaea.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/s004410051240
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