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Confocal imaging and phylogenetic considerations of the subcutaneous neurons in the Atlantic hagfish Myxine glutinosa
- Publication Year :
- 2015
-
Abstract
- Zaccone, G., Fudge, D.S., Winegard, T.M., Capillo, G., Kuciel, M., Funakoshi, K. and Lauriano, E.R. 2014. Confocal imaging and phylogenetic considerations of the subcutaneous neurons in the Atlantic hagfish Myxine glutinosa .— Acta Zoologica (Stockholm) 00: 000–000. We used confocal microscopy and immunohistochemistry to characterize the morphology of the subcutaneous neurons and the innervation of the slime glands and striated muscles in the hagfish Myxine glutinosa. A rich plexus of 5HT-, ChAT- and TH-positive neurons is described in the capsule of the slime glands. These neurons, like those of the subcutaneous plexus, receive pericellular terminations from the axons of central cells. Capsular neurons receive innervation from 5HT-positive and nNOS-positive nerve fibres. Other nerve endings belonging to two separate nerve populations are identified in the striated muscles. They contain TH and nNOS immunoreactivity. Due to the lack of any topographical labelling, the cell origin and the projections of the neurons into the cranial and spinal nerves are unknown. This study provides anatomical evidence of multiple (5HT and nNOS) peripheral innervation of the neurons. However, it does not provide information about the function of these neurons in the hagfish. We suggest that hagfish neurons have a phylogenetic relationship with the spinal group of the dorsal cells of lampreys and the supramedullary cells of teleosts.
- Subjects :
- Pathology
medicine.medical_specialty
hagfish
phylogeny
subcutaneous neurons, slime glands, striated muscle, confocal immunohistochemistry, hagfish, phylogeny
law.invention
Phylogenetics
Confocal microscopy
law
biology.animal
medicine
slime glands
Ecology, Evolution, Behavior and Systematics
Myxine glutinosa
Plexus
subcutenaeous neurons
biology
Phylogenetic tree
Cell Biology
Anatomy
biology.organism_classification
confocal immunohistochemistry
nervous system
striated muscle
Immunohistochemistry
Animal Science and Zoology
Free nerve ending
Hagfish
Subjects
Details
- Language :
- English
- Database :
- OpenAIRE
- Accession number :
- edsair.doi.dedup.....5b45e33e7a6580c3ed67ec6c37d35984