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Functional Anatomy and Histology of the Olfactory Organ in Korean Eel Goby, Odontamblyopus lacepedii (Pisces: Gobiidae)

  • Kim, Hyun Tae (Faculty of Biological Science and Institute for Biodiversity, College of Natural Science, Chonbuk National University) ;
  • Lee, Yong Joo (Jeonju National University of Education) ;
  • Park, Jong Young (Faculty of Biological Science and Institute for Biodiversity, College of Natural Science, Chonbuk National University)
  • Received : 2018.02.02
  • Accepted : 2018.03.18
  • Published : 2018.03.30

Abstract

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 pseudostratified layer consists of olfactory receptor neurons, supporting cells, basal cells and lymphatic cells. The non-sensory epithelium of a stratified layer has swollen stratified epithelial cells and mucous cells with acidic and neutral sulfomucin. From these results, we confirmed the olfactory organ of O. lacepedii is adapted to its ecological habit as well as its habitat with burrows at the muddy field with standing and murky waters.

Keywords

References

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