Junctional subsurface organs in frog sympathetic ganglion cells
- 1 February 1976
- journal article
- Published by Springer Nature in Journal of Neurocytology
- Vol. 5 (1), 125-136
- https://doi.org/10.1007/bf01176186
Abstract
Subsurface cisternae in frog sympathetic ganglion cells were studied and shown to have similar features to those of the C.N.S. A number of special features were, however, revealed by high resolution microscopy. Highly flattened subsurface cisternae occurred in close proximity to the ganglion cell membrane and formed structures comparable to gap junctions. These subsurface cisternae appeared to be elongated plates (about 0.3 × 2.5 μm) specifically restricted to the area of the ganglion cell membrane adjacent to nerve endings, although often with the intervention of a thin satellite sheath. Thus they have been termed here ‘Junctional subsurface organs’, although the nerve terminals opposing them did not show any synaptic specialization. The Junctional subsurface organ was often accompanied by closely arrayed endoplasmic reticulum and/or mitochondria. Where the Junctional subsurface organ intervened between plasma membrane and endoplasmic reticulum or mitochondria, faint particles appeared to traverse both sides and bridge the narrow spaces to the opposing plasma membrane and endoplasmic reticulum or mitochondria. The possible functional significance of the Junctional subsurface organs is discussed.Keywords
This publication has 24 references indexed in Scilit:
- Synaptic fine structure and nuclear, cytoplasmic and extracellular networksJournal of Neurocytology, 1975
- SPHEROIDAL BODIES IN THE JUNCTIONAL SARCOPLASMIC RETICULUM OF LIZARD MYOCARDIAL CELLSThe Journal of cell biology, 1974
- THE ROLE OF NERVE GROWTH FACTOR IN THE RAMIFICATION OF SYMPATHETIC NERVE FIBRES INTO THE RAT IRIS IN ORGAN CULTUREJournal of Neurochemistry, 1972
- SARCOPLASMIC RETICULUM AND EXCITATION-CONTRACTION COUPLING IN MAMMALIAN SMOOTH MUSCLESThe Journal of cell biology, 1972
- Subsurface cisterns and lamellar bodies: Particular forms of the endoplasmic reticulum in the neuronsCell and tissue research, 1972
- MEMBRANE-TO-MEMBRANE CROSS-BRIDGESThe Journal of cell biology, 1971
- CARDIAC MUSCLEThe Journal of cell biology, 1971
- STUDIES OF THE TRIADThe Journal of cell biology, 1970
- Some Observations on the Fine Structure of the Sympathetic Ganglion of the Toad, Bufo Vulgaris JaponicusArchivum histologicum japonicum, 1967
- THE FINE STRUCTURE OF THE PURKINJE CELLThe Journal of cell biology, 1963