Innervation pattern of the gill arches and gills of the carp (<i>Cyprinus carpio</i>)

Degraaf, Pjf

doi:10.1002/jmor.1052060108

Cited by 16 publications

(9 citation statements)

References 19 publications

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“…We did not observe an additional extrinsic nerve bundle or innervation of the afferent aspect of the filament in the zebrafish with zn-12 antisera. Consistent with our findings, innervation of gill filaments by single nerve bundles has been reported in other teleosts (Donald, 1987;de Graaf, 1990). The zn-12-IR nerve plexus provided innervation to serotonergic and nonserotonergic NECs of the filament epithelium.…”

Section: Extrinsic Innervationsupporting

confidence: 93%

“…The filament contains afferent and efferent filament arteries (aFA and eFA, respectively) and is covered by an epithelial layer, while the lamellae contain a vascular sinus, where gas exchange occurs, and is overlaid by an epithelium housing cell types important in respiration, such as pavement cells and pillar cells (Laurent and Dunel, 1980;Laurent, 1984;Wilson and Laurent, 2002). Teleost gill arches are innervated primarily by pretrematic and posttrematic branches of the glossopharyngeal (IX, first arch only) and vagus (X) cranial nerves, which carry parasympathetic and motor (efferent) fibers to the gill vasculature and skeletal muscles, and visceral sensory (afferent) fibers from chemoreceptors of the gill filaments (Nilsson, 1984;de Graaf, 1990;Sundin and Nilsson, 2002). Extracellular recordings from afferent fibers of IX and X nerves of isolated gill arch preparations exposed to low arterial or ambient PO 2 provided compelling evidence for the existence of internal and external O 2 chemoreceptors in fish (Milsom and Brill, 1986;Burleson and Milsom, 1993).…”

mentioning

confidence: 99%

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Neuroepithelial cells and associated innervation of the zebrafish gill: A confocal immunofluorescence study

Jonz

Nurse

2003

J of Comparative Neurology

170

227

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Peripheral chemoreceptors responsive to hypoxia have been well characterized in air-breathing vertebrates, but poorly in water-breathers. The present study examined the distribution of five populations of neuroepithelial cells (NECs), putative O(2) chemoreceptors, and innervation patterns in the zebrafish gill using whole-mounts and confocal immunofluorescence. Nerve bundles and fibers of the gill were labeled with zn-12 (a zebrafish-specific neuronal marker) and SV2 antisera and NECs were characterized by serotonin (5-HT) immunoreactivity (IR), SV2-IR and the purinoceptor P2X(3)-IR. A zn-12-IR nerve bundle extended the length of the gill filament and gave rise to a nerve plexus surrounding the efferent filament artery (eFA) and a rich network of fibers that innervated both serotonergic and nonserotonergic NECs of the filament and lamellar epithelium. Three populations of serotonergic, SV2-IR neurons intrinsic to the gill filaments are described, one of which provided innervation to NECs of the filament epithelium. Degeneration of nerve fibers in gill arches maintained in explant culture for 2 days revealed the extrinsic origin of nerve fibers of the plexus and lamellae and the innervation of filament NECs by both intrinsic and extrinsic fibers. Intrinsic innervation surrounding the eFA survived in explant cultures, suggesting a mechanism of local vascular control within the gill. In addition, NECs survived in explants after degeneration of extrinsic nerve fibers. Thus, NECs of the zebrafish gill are organized in a manner reminiscent of O(2) chemoreceptors of mammalian vertebrates, suggesting a role in respiratory regulation.

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Section: Extrinsic Innervationsupporting

confidence: 93%

mentioning

confidence: 99%

Neuroepithelial cells and associated innervation of the zebrafish gill: A confocal immunofluorescence study

Jonz

Nurse

2003

J of Comparative Neurology

170

227

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“…Although innervation per se does not provide a clear answer, we propose lcb4′ as a replacement name for “le4,” thereby indicating its apparent origin. Graaf (1990) reported similar innervation of “le4” (“fourth external levator muscle” in that study) in Cyprinus carpio .…”

Section: Discussionsupporting

confidence: 52%

Homologies of the branchial arch muscles in Zacco platypus (Teleostei: Cypriniformes: Cyprinidae): Evidence from innervation pattern

Nakae

Sasaki

Nakajima

et al. 2011

Journal of Morphology

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Homologies of the branchial arch muscles in the cyprinid Zacco platypus are assessed based on their innervation. Muscles serving the first gill arch are innervated by branches of the glossopharyngeal (IX) nerve and those serving other arches by the vagal (X) nerve. Absence of the levator posterior is confirmed. Five pairs of muscles originating from the cranium and inserted onto the specialized 5th ceratobranchial, all unique to cyprinids, are innervated by the 4th branchial trunks of X, indicating that all pairs are derivatives of the sphincter oesophagi, involving reorganization from intrinsic to extrinsic elements. Homologies of some ventral branchial muscles are also discussed and the criteria for homology improved by clarifying the innervation pattern.

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“…In fish, NECs are innervated by afferent nerves from cranial nerves IX and X (de Graaf, ; Sundin & Nilsson, ), which project to the general visceral nucleus, an area thought to be homologous to the nucleus tractus solitarius (NTS) in mammals (Sundin et al . ).…”

Section: Discussionmentioning

confidence: 99%

The role of hydrogen sulphide in the control of breathing in hypoxic zebrafish (Danio rerio)

Porteus

Abdallah

Pollack

et al. 2014

The Journal of Physiology

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Key pointsr Hydrogen sulphide (H 2 S), a gaseous neurotransmitter, is involved in oxygen sensing in glomus cells, which are oxygen-sensing cells found in the mammalian carotid body.r Neuroepithelial cells (NECs) are oxygen-sensing cells of fish and are thought to be phylogenetic precursors of mammalian glomus cells; however, the oxygen-sensing mechanisms of these cells remain largely unknown.r Both adult and larval zebrafish responded to exogenous H 2 S by increasing ventilation in a dose-dependent manner; H 2 S increased intracellular [Ca 2+ ] in NECs.r Inhibiting endogenous H 2 S production decreased or abolished the ventilatory response to hypoxia in both adult and larval zebrafish.r The results demonstrate an important role for H 2 S in oxygen sensing in zebrafish.Abstract The current study investigated the role of hydrogen sulphide (H 2 S) in oxygen sensing, intracellular signalling and promotion of ventilatory responses to hypoxia in adult and larval zebrafish (Danio rerio). Both larval and adult zebrafish exhibited a dose-dependent increase in ventilation to sodium sulphide (Na 2 S), an H 2 S donor. In vertebrates, cystathionine β-synthase (CBS) and cystathionine γ-lyase (CSE) are enzymes that catalyse the endogenous production of H 2 S. In adult zebrafish, inhibition of both CBS and CSE with aminooxyacetate (AOA) and propargyl glycine (PPG) blunted or abolished the hypoxic hyperventilation, and the addition of Na 2 S to the water partially rescued the effects of inhibiting endogenous H 2 S production. In zebrafish larvae (4 days post-fertilization), gene knockdown of either CBS or CSE using morpholinos attenuated the hypoxic ventilatory response. Furthermore, the intracellular calcium concentration of isolated neuroepithelial cells (NECs), which are putative oxygen chemoreceptors, increased significantly when these cells were exposed to 50 μM Na 2 S, supporting a role for H 2 S in Ca 2+ -evoked neurotransmitter release in these cells. Finally, immunohistochemical labelling showed that NECs dissociated from adult gill contained CBS and CSE, whereas cutaneous NECs in larval zebrafish expressed only CSE. Taken together, these data show that H 2 S can be produced in the putative oxygen-sensing cells of zebrafish, the NECs, in which it appears to play a pivotal role in promoting the hypoxic ventilatory response.

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Innervation pattern of the gill arches and gills of the carp (Cyprinus carpio)

Cited by 16 publications

References 19 publications

Neuroepithelial cells and associated innervation of the zebrafish gill: A confocal immunofluorescence study

Neuroepithelial cells and associated innervation of the zebrafish gill: A confocal immunofluorescence study

Homologies of the branchial arch muscles in Zacco platypus (Teleostei: Cypriniformes: Cyprinidae): Evidence from innervation pattern

The role of hydrogen sulphide in the control of breathing in hypoxic zebrafish (Danio rerio)

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