Applied Microscopy

Korean Society of Microscopy (한국현미경학회)
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A Histological Study on the Visual Cell Layer of the Endemic Korean Species Liobagrus mediadiposalis (Pisces: Amblycipitidae)

  • Kim, Jae Goo (Department of Biological Sciences and Institute for Biodiversity Research, College of Natural Sciences, Chonbuk National University) ;
  • Park, Jong Young (Department of Biological Sciences and Institute for Biodiversity Research, College of Natural Sciences, Chonbuk National University)
  • Received : 2017.11.28
  • Accepted : 2017.12.21
  • Published : 2017.12.30
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Abstract

A study on the visual cell and eyeball of the endemic Korean species Liobagrus mediadiposalis was investigated by light and electron microscopes. The retina of a small and 2 mm-diameter round eye was thin, $151.0{\pm}4.0{\mu}m$ and has two visual cells, a single cone and a rod cell. The single cone cells are short and thick, $18.0{\pm}0.9{\mu}m$ in length and $5.1{\pm}0.7{\mu}m$ (n=30) in diameter, while the rod cells are longer and thinner, $54.8{\pm}2.9{\mu}m$ in length and $3.3{\pm}0.6{\mu}m$ in diameter. The cone cells are seen an irregular and random mosaic pattern, and the rod cells are also randomly situated at between cone cells. As a rare phenomenon, such structure is one of characteristics reflecting the eye of a nocturnal and bottom-dwelling freshwater fish. The ultrastructure of visual cells was observed with scanning and transmission electron microscopy, both cone and rod cells are divided into an inner segment with numerous mitochondria and an outer segment with stacks of membrane discs.

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References

  1. Donatti L and Fanta E (2007) Fine structure of the retinal pigment epithelium and cone of Antarctic fish Notohenia coriiceps Richardson in light and dark-conditions. Revista Brasileira de Zoologia 24, 33-40. https://doi.org/10.1590/S0101-81752007000100004
  2. Engstrom K (1963) Cone types and cone arrangements in teleost retinae. Acta Zoologica 44, 179-243. https://doi.org/10.1111/j.1463-6395.1963.tb00408.x
  3. Fernald R D (1982) Cone mosaics in a teleost retina: no difference between light and dark adapted states. Experientia 38, 1337-1339. https://doi.org/10.1007/BF01954937
  4. Fernald R D (1988) Aquatic adaptations of fish eyes. In: Sensory Biology of Aquatic Animals, eds. Atema J, Fay R R, Popper A N, and Tavolga W N, pp. 435-485, (Springer, New York).
  5. Gurr G T (1956) A Practical Manual of Medical and Biological Staining Techniques (Interscience, New York).
  6. Hagedorn M, Mack A F, Evans B, and Fernald R D (1998) The embryogenesis of rod photoreceptors in the teleost fish retina, Haplochromis burtoni. Dev. Brain Res. 108, 217-227. https://doi.org/10.1016/S0165-3806(98)00051-0
  7. Kim C H, Kim J G, and Park J Y (2015) The structure of visual cells in the retina of the pond loach, Misgurnus anguillicaudatus (Pisces; Cobitidae). Appl. Microsc. 45, 25-258.
  8. Kim I S and Park J Y (2002) Freshwater Fishes of Korea (Kyo-Hak Publishing, Seoul).
  9. Kim J G and Park J Y (2015) Visual cells in the retina of Iksookimia longicorpa (Pisces; Cobitidae) of Korea. Korean J. Ichthyol. 27, 257-262.
  10. Kim J G and Park J Y (2017) Morphological characteristics of visual cells in the endemic Korean loach Kichulchoia multifasciata (Pisces; Cobitidae) by microscopy. Folia Morphol. 76, 186-190. https://doi.org/10.5603/FM.a2016.0072
  11. Kim J G, Park J Y, and Kim C H (2014) Visual cells in the retina of the aucha perch Coreoperca herzi Herzenstein, 1896 (Pisces; Centropomidae) of Korea. J. Appl. Ichthyol. 30, 172-174. https://doi.org/10.1111/jai.12311
  12. Kim S H (2013) Taxonomic revision of the genus Liobagrus (Siluriformes: Amblycipitidae) from Korea. Ph.D dissertation, (Chonbuk National Univ., Jeonju).
  13. Kunz Y W (1980) Cone mosaics in a teleost retina: changes during light and dark adaptation. Experientia 36, 1371-1374. https://doi.org/10.1007/BF01960104
  14. Lee M S and Lim J W (2005) Comparative study of retinal tissues of genus Zacco and genus Pseudogobio in Korean fish: possible relationship with prey and habitat. Korean J. Anat. 38, 103-110.
  15. Marc R E and Sperling H G (1976) The chromatic organization of the goldfish cone mosaic. Vision Res. 16, 1211-1224. https://doi.org/10.1016/0042-6989(76)90044-4
  16. Nag T C and Bhattacharjee J (1993) Retinal vascularisation in the loach Noemacheilus rupicola rupicola: coexistence of falciform process and vitreal vessels. Environ. Biol. Fish 36, 385-388. https://doi.org/10.1007/BF00012417
  17. Nag T C and Bhattacharjee J (2002) Retinal cytoarchitecture in some mountain-stream teleosts of India. Environ. Biol. Fish 63, 435-449. https://doi.org/10.1023/A:1014982218347
  18. van der Meer H J (1992) Constructional morphology of photoreceptor patterns in percomorph fish. Acta Biotheoretica 40, 51-85. https://doi.org/10.1007/BF00046551
  19. You M J and Park J Y (2008) Comparative study of the retinal structure in two Korean endemic freshwater fishes, Zacco koreanus (Cyprinidae) and Pseudobagrus koreanus (Bagridae) based on their habitats. Korean J. Ichthyol. 20, 97-104.