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Morphology of two pairs of identified peptidergic neurons in the Buccal ganglia of the mollusc Tritonia diomedea

1985; Wiley; Volume: 16; Issue: 1 Linguagem: Inglês

10.1002/neu.480160104

1097-4695

Boris Masinovsky, Philip E. Lloyd, A. O. Dennis Willows,

Neuropeptides and Animal Physiology

Journal of NeurobiologyVolume 16, Issue 1 p. 27-39 Article Morphology of two pairs of identified peptidergic neurons in the Buccal ganglia of the mollusc Tritonia diomedea Boris Masinovsky, Boris Masinovsky Department of Zoology, University of Washington, Seattle, Washington 98195Search for more papers by this authorPhilip E. Lloyd, Philip E. Lloyd Department of Zoology, University of Washington, Seattle, Washington 98195Search for more papers by this authorA. O. Dennis Willows, A. O. Dennis Willows Friday Harbor Laboratories, University of Washington, Friday Harbor, Washington 98250Search for more papers by this author Boris Masinovsky, Boris Masinovsky Department of Zoology, University of Washington, Seattle, Washington 98195Search for more papers by this authorPhilip E. Lloyd, Philip E. Lloyd Department of Zoology, University of Washington, Seattle, Washington 98195Search for more papers by this authorA. O. Dennis Willows, A. O. Dennis Willows Friday Harbor Laboratories, University of Washington, Friday Harbor, Washington 98250Search for more papers by this author First published: January 1985 https://doi.org/10.1002/neu.480160104Citations: 17AboutPDF ToolsRequest permissionExport citationAdd to favoritesTrack citation ShareShare Give accessShare full text accessShare full-text accessPlease review our Terms and Conditions of Use and check box below to share full-text version of article.I have read and accept the Wiley Online Library Terms and Conditions of UseShareable LinkUse the link below to share a full-text version of this article with your friends and colleagues. Learn more.Copy URL Share a linkShare onEmailFacebookTwitterLinkedInRedditWechat Abstract The morphology of two pairs of identified peptidergic neurons (B11 and B12) located in the buccal ganglia of Tritonia diomedea was described. Both pairs of neurons contained a large quantity of a small cardioactive peptide (SCP) in their somata. One of the pairs (B11), the large dorsal white cells, contained ACh in their somata along with SCP. Both pairs of cells appeared white in live preparations under epi-illumination. Each B11 and B12 was a unipolar neuron and sent its major axonal branch through the ipsilateral gastro-esophageal nerve to the gut. In addition, B12 sent a small branch to the contralateral buccal ganglion. A characteristic feature of both neuron pairs was their vesicular content. Three types of vesicles were observed in B11. Vesicles with electron-lucent core (LCV) and electron-dense core (DCV) were found in the somata. The axon hillock and the beginning of axon contained vesicles with variable electron dense core (VDCV) in addition to LCV and DCV. The ratio of DCV: LCV: VDCV changed from 5:95:0 for the perinuclear cytoplasm to 8:55:37 for the beginning of axon. The average maximum diameters were 97 ± 23 nm for DCV, 103 ± 32 nm for LCV and 106 ± 29 nm for VDCV. 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