Journals Information
Advances in Zoology and Botany Vol. 8(6), pp. 483 - 490
DOI: 10.13189/azb.2020.080602
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Light and Transmission Electron Microscopic Study of Olfactory Organ of Spotted Snakehead, Channa punctata (Bloch)
Prakash Ghodeswar 1, Nilesh Gorghate 2, Suresh Masram 1,*
1 Department of Zoology, RTM Nagpur University, Nagpur (M.S.), India
2 Department of Zoology, M.B. Patel College, Sadak Arjuni, Dist- Gondia (M.S.), India
ABSTRACT
The olfactory organ of Channa punctata (Bloch) has been studied under light microscope and transmission electron microscope. The olfactory apparatus of C. punctata comprises of olfactory rosette, olfactory nerve, and olfactory bulb. Paired, oval shaped olfactory rosette present in the olfactory chamber on fish rostrum. Olfactory chamber opens externally via an anterior inlet and a posterior nostril outlet. Olfactory epithelium comprises of sensory and non-sensory regions. Sensory region is at basal part and non-sensory region is at proximal area of olfactory lamellae. In olfactory lamellae, sensory epithelium consists of olfactory receptor cells, supporting cells, basal cells, goblet cells, mucous cell and white cell. Olfactory receptor cells are of two types microvillous and ciliated. In C. punctata, olfactory bulb is sessile and is attached to the telencephalon. Cells of olfactory bulb are organized in four concentric layers. Outer layer is olfactory nerve layer formed by axons of olfactory receptor cells. Inner to it is glomerular layer where axons of olfactory receptor cells synapse with dendrites of mitral cells. Next towards deeper part is mitral cell layer which comprises larger multipolar mitral cells. Central core is formed by granular cell layer with small granular cells.
KEYWORDS
Channa punctata, Olfactory Rosette, Olfactory Bulb, Olfactory Epithelium
Cite This Paper in IEEE or APA Citation Styles
(a). IEEE Format:
[1] Prakash Ghodeswar , Nilesh Gorghate , Suresh Masram , "Light and Transmission Electron Microscopic Study of Olfactory Organ of Spotted Snakehead, Channa punctata (Bloch)," Advances in Zoology and Botany, Vol. 8, No. 6, pp. 483 - 490, 2020. DOI: 10.13189/azb.2020.080602.
(b). APA Format:
Prakash Ghodeswar , Nilesh Gorghate , Suresh Masram (2020). Light and Transmission Electron Microscopic Study of Olfactory Organ of Spotted Snakehead, Channa punctata (Bloch). Advances in Zoology and Botany, 8(6), 483 - 490. DOI: 10.13189/azb.2020.080602.