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Literature DB >> 52643

An ultrastructural and cytochemical study of neuromuscular junctions in echinoderms.

Abstract

The ultrastructure of neuromuscular junctions in various organs of a starfish and a holothurian was studied. All neurons were found to contain large (100-250 nm), dense-core vesicles. Cytochemical tests for acetylcholinesterase were negative for these neurons. The presence of proteinaceous neurosecretory material was contested by enzymatic digestion (pepsin) which did not attack the dense-core vesicles, as well as by incubation in phosphotungstic acid (PTA) which did not stain these structures. Staining with dichromate produced a positive reaction for 5-hydroxytryptamine. In the absence of synaptic modifications even after specific staining with PTA, the transmission of nervous impulses is effectuated through exocytosis of 5-hydroxytryptamine at nerve endings in the muscle tissue.

Entities: Chemical

Mesh：

Substances：

Year: 1975 PMID： 52643 DOI： 10.1007/bf00490368

Source DB: PubMed Journal: Histochemistry ISSN： 0301-5564

22 in total

1. Cholinergic action of homogenates of sea urchin pedicellariae.

Authors: E G MENDES; L ABBUD
Journal: Science Date: 1963-02-01 Impact factor: 47.728

2. An electron-microscopic study of zinc iodide-osmium impregnation of neurons. I. Staining of synaptic vesicles at cholinergic junctions.

Authors: K Akert; C Sandri
Journal: Brain Res Date: 1968-02 Impact factor: 3.252

3. [Innervation of the smooth penis retractor muscle from Helix pomatia: general histology and histochemistry of the monoaminergic system].

Authors: G Bogusch
Journal: Z Zellforsch Mikrosk Anat Date: 1972

4. Action of reserpine on the osmium tetroxide zinc iodide reactive site of synaptic vesicles in the pineal nerves of the rat.

Authors: A Pellegrino de Iraldi; R Gueudet
Journal: Z Zellforsch Mikrosk Anat Date: 1968

Review 1. Invaginating Presynaptic Terminals in Neuromuscular Junctions, Photoreceptor Terminals, and Other Synapses of Animals.

Authors: Ronald S Petralia; Ya-Xian Wang; Mark P Mattson; Pamela J Yao
Journal: Neuromolecular Med Date: 2017-06-13 Impact factor: 3.843

2. Immunocytochemical mapping of the novel echinoderm neuropeptide SALMFamide 1 (S1) in the starfish Asterias rubens.

Authors: S J Moore; M C Thorndyke
Journal: Cell Tissue Res Date: 1993-12 Impact factor: 5.249

3. An ultrastructural study of the dermal papulae of the starfish, Asterias rubens, with special reference to innervation of the muscles.

Authors: J L Cobb
Journal: Cell Tissue Res Date: 1978-03-13 Impact factor: 5.249

4. Ultrastructural, fluorescence microscopic and microfluorimetric study of the innervation of the axial complex in the sea urchin, Sphaerechinus granularis (lam.).

Authors: S Bachmann; A Goldschmid
Journal: Cell Tissue Res Date: 1978-11-20 Impact factor: 5.249

4 in total

An ultrastructural and cytochemical study of neuromuscular junctions in echinoderms.

1. Cholinergic action of homogenates of sea urchin pedicellariae.

2. An electron-microscopic study of zinc iodide-osmium impregnation of neurons. I. Staining of synaptic vesicles at cholinergic junctions.

3. [Innervation of the smooth penis retractor muscle from Helix pomatia: general histology and histochemistry of the monoaminergic system].

4. Action of reserpine on the osmium tetroxide zinc iodide reactive site of synaptic vesicles in the pineal nerves of the rat.

5. Acetylcholine and cholinesterase in the radial nerve of Asterias rubens.

6. Ultrastructure of the tube foot wall of a regular echinoid, Diadema antillarum Philippi.

7. Electron localization of amines in central nervous tissue.

8. Chemical and ultrastructural identification of 5-hydroxytryptamine in an identified neuron.

9. THE LOCALIZATION OF CHOLINESTERASE ACTIVITY IN RAT CARDIAC MUSCLE BY ELECTRON MICROSCOPY.

10. Myoneural junctions of two ultrastructurally distinct types in earthworm body wall muscle.

Review 1. Invaginating Presynaptic Terminals in Neuromuscular Junctions, Photoreceptor Terminals, and Other Synapses of Animals.

2. Immunocytochemical mapping of the novel echinoderm neuropeptide SALMFamide 1 (S1) in the starfish Asterias rubens.

3. An ultrastructural study of the dermal papulae of the starfish, Asterias rubens, with special reference to innervation of the muscles.

4. Ultrastructural, fluorescence microscopic and microfluorimetric study of the innervation of the axial complex in the sea urchin, Sphaerechinus granularis (lam.).