Korean Journal of Environmental Biology (환경생물)

Korean Society of Environmental Biology (한국환경생물학회)
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First report of Amphidinium fijiense(Dinophyceae) from the intertidal zone of a sandy beach of Jeju Island, Korea

  • Su-Min Kang (Department of Earth and Marine Science, College of Ocean Sciences, Jeju National University) ;
  • Taehee Kim (Department of Biotechnology, Sangmyung University) ;
  • Joon-Baek Lee (Department of Earth and Marine Science, College of Ocean Sciences, Jeju National University) ;
  • Jang-Seu Ki (Department of Biotechnology, Sangmyung University) ;
  • Jin Ho Kim (Department of Earth and Marine Science, College of Ocean Sciences, Jeju National University)
  • Received : 2022.11.29
  • Accepted : 2022.12.13
  • Published : 2022.12.31
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Abstract

A strain of Amphidinium species was established from samples collected from the intertidal zone of a sandy beach of Jeju Island, Korea. Its cells were 13.0-15.0 ㎛ in length and 10.0-13.0 ㎛ in width. Its cell shape was round or oval and dorsoventrally flat. A pyrenoid was located in the center of the cell and a nucleus was posteriorly located. Its epicone was small and left-deflecting. Its cingulum had V-shape on the ventral side, forming a ventral ridge and extending to the sulcus. Polygonal amphiesmal vesicles and ring-shaped body scales not described previous were observed on the surface of the cell. Its morphological features were consistent with those of previously described Amphidinium fijiense. Phylogeny based on ITS region and LSU rDNA sequences revealed that this Amphidinium isolate was clearly clustered with other A. fijiense strains, but separated from other Amphidinium species. These results indicate that this Amphidinium isolate is A. fijiense. This study reports its presence for the first time in the intertidal zone of a sandy beach of Jeju Island, Korea.

Keywords

Acknowledgement

This research was supported by the National Research Foundation of Korea (NRF) grant funded by the Korea government(MSIT)(No. 2022R1C1C1003582), National University Development Project funded by the Ministry of Education (Korea) and National Research Foundation of Korea (2021), and a grant from the National Institute of Biological Resources (NIBR), funded by the Ministry of Environment(MOE) of the Republic of Korea(NIBR202203204 and NIBR202212103).

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