Neuropilar projections of the anterior gastric receptor neuron in the stomatogastric ganglion of the Jonah crab, Cancer borealis.

Sensory neurons provide important feedback to pattern-generating motor systems. In the crustacean stomatogastric nervous system (STNS), feedback from the anterior gastric receptor (AGR), a muscle receptor neuron, shapes the activity of motor circuits in the stomatogastric ganglion (STG) via polysyna...

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Autores principales:	Marie L Goeritz, Matthew R Bowers, Brian Slepian, Eve Marder
Formato:	article
Lenguaje:	EN
Publicado:	Public Library of Science (PLoS) 2013
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/82d5dfe6b7c54f1bab0ccce969aa71c0
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spelling	oai:doaj.org-article:82d5dfe6b7c54f1bab0ccce969aa71c02021-11-18T08:43:49ZNeuropilar projections of the anterior gastric receptor neuron in the stomatogastric ganglion of the Jonah crab, Cancer borealis.1932-620310.1371/journal.pone.0079306https://doaj.org/article/82d5dfe6b7c54f1bab0ccce969aa71c02013-01-01T00:00:00Zhttps://www.ncbi.nlm.nih.gov/pmc/articles/pmid/24312448/?tool=EBIhttps://doaj.org/toc/1932-6203Sensory neurons provide important feedback to pattern-generating motor systems. In the crustacean stomatogastric nervous system (STNS), feedback from the anterior gastric receptor (AGR), a muscle receptor neuron, shapes the activity of motor circuits in the stomatogastric ganglion (STG) via polysynaptic pathways involving anterior ganglia. The AGR soma is located in the dorsal ventricular nerve posterior to the STG and it has been thought that its axon passes through the STG without making contacts. Using high-resolution confocal microscopy with dye-filled neurons, we show here that AGR from the crab Cancer borealis also has local projections within the STG and that these projections form candidate contact sites with STG motor neurons or with descending input fibers from other ganglia. We develop and exploit a new masking method that allows us to potentially separate presynaptic and postsynaptic staining of synaptic markers. The AGR processes in the STG show diversity in shape, number of branches and branching structure. The number of AGR projections in the STG ranges from one to three simple to multiply branched processes. The projections come in close contact with gastric motor neurons and descending neurons and may also be electrically coupled to other neurons of the STNS. Thus, in addition to well described long-loop pathways, it is possible that AGR is involved in integration and pattern regulation directly in the STG.Marie L GoeritzMatthew R BowersBrian SlepianEve MarderPublic Library of Science (PLoS)articleMedicineRScienceQENPLoS ONE, Vol 8, Iss 12, p e79306 (2013)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Marie L Goeritz Matthew R Bowers Brian Slepian Eve Marder Neuropilar projections of the anterior gastric receptor neuron in the stomatogastric ganglion of the Jonah crab, Cancer borealis.
description	Sensory neurons provide important feedback to pattern-generating motor systems. In the crustacean stomatogastric nervous system (STNS), feedback from the anterior gastric receptor (AGR), a muscle receptor neuron, shapes the activity of motor circuits in the stomatogastric ganglion (STG) via polysynaptic pathways involving anterior ganglia. The AGR soma is located in the dorsal ventricular nerve posterior to the STG and it has been thought that its axon passes through the STG without making contacts. Using high-resolution confocal microscopy with dye-filled neurons, we show here that AGR from the crab Cancer borealis also has local projections within the STG and that these projections form candidate contact sites with STG motor neurons or with descending input fibers from other ganglia. We develop and exploit a new masking method that allows us to potentially separate presynaptic and postsynaptic staining of synaptic markers. The AGR processes in the STG show diversity in shape, number of branches and branching structure. The number of AGR projections in the STG ranges from one to three simple to multiply branched processes. The projections come in close contact with gastric motor neurons and descending neurons and may also be electrically coupled to other neurons of the STNS. Thus, in addition to well described long-loop pathways, it is possible that AGR is involved in integration and pattern regulation directly in the STG.
format	article
author	Marie L Goeritz Matthew R Bowers Brian Slepian Eve Marder
author_facet	Marie L Goeritz Matthew R Bowers Brian Slepian Eve Marder
author_sort	Marie L Goeritz
title	Neuropilar projections of the anterior gastric receptor neuron in the stomatogastric ganglion of the Jonah crab, Cancer borealis.
title_short	Neuropilar projections of the anterior gastric receptor neuron in the stomatogastric ganglion of the Jonah crab, Cancer borealis.
title_full	Neuropilar projections of the anterior gastric receptor neuron in the stomatogastric ganglion of the Jonah crab, Cancer borealis.
title_fullStr	Neuropilar projections of the anterior gastric receptor neuron in the stomatogastric ganglion of the Jonah crab, Cancer borealis.
title_full_unstemmed	Neuropilar projections of the anterior gastric receptor neuron in the stomatogastric ganglion of the Jonah crab, Cancer borealis.
title_sort	neuropilar projections of the anterior gastric receptor neuron in the stomatogastric ganglion of the jonah crab, cancer borealis.
publisher	Public Library of Science (PLoS)
publishDate	2013
url	https://doaj.org/article/82d5dfe6b7c54f1bab0ccce969aa71c0
work_keys_str_mv	AT marielgoeritz neuropilarprojectionsoftheanteriorgastricreceptorneuroninthestomatogastricganglionofthejonahcrabcancerborealis AT matthewrbowers neuropilarprojectionsoftheanteriorgastricreceptorneuroninthestomatogastricganglionofthejonahcrabcancerborealis AT brianslepian neuropilarprojectionsoftheanteriorgastricreceptorneuroninthestomatogastricganglionofthejonahcrabcancerborealis AT evemarder neuropilarprojectionsoftheanteriorgastricreceptorneuroninthestomatogastricganglionofthejonahcrabcancerborealis
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Neuropilar projections of the anterior gastric receptor neuron in the stomatogastric ganglion of the Jonah crab, Cancer borealis.

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