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KMID : 1102020180480010011
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Applied Microscopy
2018 Volume.48 No. 1 p.11 ~ p.16
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Functional Anatomy and Histology of the Olfactory Organ in Korean Eel Goby, Odontamblyopus lacepedii (Pisces: Gobiidae)
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Kim Hyun-Tae
Lee Yong-Joo
Park Jong-Young
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Abstract
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For Odontamblyopus lacepedii with small and turbid eyes, the gross structure and histology of the olfactory organ, which is important for its survival and protection of the receptor neuron in estuarial environment and its ecological habit, was investigated using a stereo, light and scanning electron microscopes. Externally, the paired olfactory organs with two nostrils are located identically on each side of the snout. These nostrils are positioned at the anterior tip of the upper lip (anterior nostril) and just below eyes covered with the epidermis (posterior nostril). Internally, this is built of an elongated olfactory chamber and two accessory nasal sacs. In histology, the olfactory chamber is elliptical in shape, and lined by the sensory epithelium and the non-sensory epithelium. The sensory epithelium of a pseudostrati?ed layer consists of olfactory receptor neurons, supporting cells, basal cells and lymphatic cells. The non-sensory epithelium of a strati?ed layer has swollen strati?ed epithelial cells and mucous cells with acidic and neutral sulfomucin. From these results, we con?rmed the olfactory organ of O. lacepedii is adapted to its ecological habit as well as its habitat with burrows at the muddy ?eld with standing and murky waters.
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KEYWORD
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Odontamblyopus lacepedii, Olfactory organ, Anterior nostril, Two nasal sac, Mucous cell
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