The fine structure of corpora pedunculata in Gryllotalpa gryllotalpa L. (Insecta, Orthoptera)

Zs.-Nagy, Imre and Muskó, Ilona (1972) The fine structure of corpora pedunculata in Gryllotalpa gryllotalpa L. (Insecta, Orthoptera). A Magyar Tudományos Akadémia Tihanyi Biológiai Kutatóintézetének évkönyve, 39. pp. 81-87. ISSN 0365-3005

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Abstract

1. The structure of globuli cells is similar to the forms described in other Orthoptera and Hymenoptera. There are no axo-somatic synapses in the globuli cell layer. Intersomatic membrane discontinuities can be observed. 2. The calyx neuropile displays an expressed glomerular structure. The thin axons invaginating into the end knob are present even in this species. Typical “tight junctions” could not be observed. Synaptic vesicles of 300—400 Á are predominant in the end knobs, while dense-core vesicles of 800—1500 Á occur only rarely. 3. The structure of the pedunculus is also similar to that of other Orthoptera with the difference that the separation of zones is less expressed. 4. Alpha lobe: its structure differs from that of species investigated so far. One part of the peduncular thin axons enters the alpha lobe, where large varicosities and a medium sized axon form can also be found. Receding from the pedunculus, the latter two forms become more and more predominant. 5. Beta lobe: its structure differs from that of the alpha lobe, i.e. it contains large varicosities only randomly and the structure is more homogeneous and uniform.

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