Journal Article
Histoanatomy and surface ultrastructure of the olfactory organ of the freshwater tank goby, Glossogobius giuris (Hamilton, 1822)
Ghosh, S.K.
Record Number:
5331
Year:
2020
Journal:
Fisheries and Aquatic Life
Pages:
141-148
Volume:
28
Notes:
© 2020 Author(s). This is an open access article licensed under the Creative Commons Attribution-NonCommercial-NoDerivs License
http://creativecommons.org/licenses/by-nc-nd/3.0/
Abstract:
Abstract. Characteristic features of histology and fine
morphology of the olfactory organ in the tank goby,
Glossogobius giuris (Perciformes, Gobiidae, Gobiinae), were
investigated with light and scanning electron microscopy. The
olfactory cavity contained single lamellae that were exposed to
the aquatic environment by small anterior and posterior
nostrils. Typical olfactory rosettes were not observed.
Histologically, each lamella consisted of two layers of
epithelium; wrapping the central core that was composed of
connective tissue stroma with nerve fibers and blood
capillaries. The mucosal lining of lamella was merged with
sensory and non-sensory olfactory cells, identified on the basis
of structural characters, surface specializations, and staining
features. The principal sensory elements were ciliated receptor
cells that were characterized by apical dendritic processes
expanded from cell soma and microvillous receptor cells
equipped with multiple tiny dendrons on the mucosal surface.
The bead-like appearance of several labyrinth cells, mucous
cells with secreted mucin, scattered lymphatic cells, stratified
epithelial cells bearing microfolds, and condensed ciliated
supporting cells were observed in the non-sensory epithelia.
Undifferentiated basal cells were embedded in the deeper zone
of the epithelium above the basement membrane. The cellular
organization of the olfactory lining was interpreted with
chemoreception of the fish concerned.
Keywords: Gobiid fish, olfactory structure,
morphoanatomy, histology, olfaction
Times Cited:
2