ArticleCell and tissue research1986
Ultrastructure of capitate projections in the optic neuropil of Diptera.
Article in Cell and tissue research, 1986. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers.
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Who cites it
17 citing papers in PubMed.
- Better Sleep at Night: How Light Influences Sleep inFrontiers in physiology · 2020Review
- Transcriptional Feedback Links Lipid Synthesis to Synaptic Vesicle Pools in Drosophila Photoreceptors.Neuron · 2019Article
- On Variations in the Level of PER in Glial Clocks ofFrontiers in physiology · 2018Article
- Downregulation ofFrontiers in neuroscience · 2017Article
- Article
- Structure, Distribution, and Function of Neuronal/Synaptic Spinules and Related Invaginating Projections.Neuromolecular medicine · 2015Review
- Long-distance mechanism of neurotransmitter recycling mediated by glial network facilitates visual function in Drosophila.Proceedings of the National Academy of Sciences of the United States of America · 2014Article
- Visual neurotransmission in Drosophila requires expression of Fic in glial capitate projections.Nature neuroscience · 2012Article
- Immunocytochemical localization of synaptic proteins to photoreceptor synapses of Drosophila melanogaster.The Journal of comparative neurology · 2010Article
- The functional organisation of glia in the adult brain of Drosophila and other insects.Progress in neurobiology · 2010Review
- Synaptic circuits of the Drosophila optic lobe: the input terminals to the medulla.The Journal of comparative neurology · 2008Article
- Central projections of photoreceptor axons originating from ectopic eyes in Drosophila.Proceedings of the National Academy of Sciences of the United States of America · 2008Article
- The role of carcinine in signaling at the Drosophila photoreceptor synapse.PLoS genetics · 2007Article
- Drosophila tan encodes a novel hydrolase required in pigmentation and vision.PLoS genetics · 2005Article
- Endophilin promotes a late step in endocytosis at glial invaginations in Drosophila photoreceptor terminals.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2003Article
- The rapid assembly of synaptic sites in photoreceptor terminals of the fly's optic lobe recovering from cold shock.Proceedings of the National Academy of Sciences of the United States of America · 1995Article
- More than just glue: the diverse roles of cell adhesion molecules in the Drosophila nervous system.Cell adhesion & migrationReview
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Authors and funding
2 authors.
Funding
Abstract
Photoreceptor axons in the first optic neuropil of the dipteran flies Musca domestica and Drosophila melanogaster was examined with electron microscopy. The objective was to determine ultrastructure, persistence and glial source of the capitate projections found within these neurons. Capitate projections are simple or compound processes of epithelial glial cells which profusely insert into form-fitting folds of axon terminals of the peripheral retinular cells (R1-6) in the synaptic plexus portion of the first optic neuropil. These neuro-glial junctions may be simple indentations, have a head with a single stalk, or possess a single, circular stalk from which 3 or 4 bulbous (glial) heads are elaborated. Using serial thick sections of Drosophila neuropil for HVEM we were able to observe that the stalks connecting nearly all capitate projections led directly to a glial cell. Thus no disembodied heads were found suspended in axoplasm. Capitate projections appeared to be persistent structures, present in young as well as senescent adults. No evolution of form was found; thus 3 distinct expressions of these glial processes (without transitional forms) are present. From freeze-fracture replicas and serial HVEM sections it was determined that there were approximately 3 capitate projections per micron 2 in Drosophila and Musca, respectively. About 800 capitate projections exist per Musca axon terminal or about 5 times the number of chemical synapses. Cp's were slightly larger in Drosophila than in Musca, although the Musca retinular axon has twice the diameter and length of that of the fruit fly. The evidence was reviewed in light of the likely supportive function of capitate projections on the R1-6 terminals.
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