PUBLICATION
The structure of the caudal wall of the zebrafish (Danio rerio) swim bladder: Evidence of localized lamellar body secretion and a proximate neural plexus
- Authors
- Robertson, G.N., Croll, R.P., Smith, F.M.
- ID
- ZDB-PUB-140513-319
- Date
- 2014
- Source
- Journal of morphology 275(8): 933-48 (Journal)
- Registered Authors
- Croll, Roger P.
- Keywords
- autonomic nervous system, cyprinid, surfactant, ultrastructure
- MeSH Terms
-
- Extracellular Matrix/ultrastructure
- Muscle, Smooth/ultrastructure
- Zebrafish Proteins/metabolism
- Air Sacs/enzymology
- Air Sacs/innervation*
- Animals
- Secretory Vesicles/ultrastructure
- Male
- Nitric Oxide Synthase Type I/metabolism
- Female
- Fibroblasts/ultrastructure
- Nerve Net/ultrastructure
- Multivesicular Bodies/ultrastructure
- Zebrafish/anatomy & histology*
- Epithelium
- PubMed
- 24643973 Full text @ J. Morphol.
Citation
Robertson, G.N., Croll, R.P., Smith, F.M. (2014) The structure of the caudal wall of the zebrafish (Danio rerio) swim bladder: Evidence of localized lamellar body secretion and a proximate neural plexus. Journal of morphology. 275(8):933-48.
Abstract
In this study, we present a morphological description of the fine structure of the tissues composing the caudal tip of the adult zebrafish swim bladder and an immunochemical survey of the innervation at this site. The internal aspect of the caudal tip is lined by an epithelium specialized to secrete surfactant into the lumen as evinced by the exocytosis of lamellar bodies. The sole innervation to this region consists of a neural plexus, present on the external surface, of nitric oxide synthase-positive (nNOS) neuronal cell bodies that are contacted by axon terminals, some containing neuropeptide Y and vasoactive intestinal polypeptide. As the specialized epithelium and neural plexus are coincident and of common extent, we suggest that the morphological relationship between the two elements allows the nervous system to affect surfactant processing, possibly through a paracrine mechanism.
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