환경생물 (Korean Journal of Environmental Biology)

  • 제41권4호
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  • Pages.608-615
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  • 2023
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  • 1226-9999(pISSN)
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  • 2287-7851(eISSN)
한국환경생물학회 (Korean Society of Environmental Biology)
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Morphology and molecular phylogeny of harmful dinoflagellate Pseudocochlodinium profundisulcus from Korean coastal area

  • Joo Yeon Youn (Library of Marine Samples, Korea Institute of Ocean Science and Technology) ;
  • Kyong Ha Han (Library of Marine Samples, Korea Institute of Ocean Science and Technology) ;
  • Kyeong Yoon Kwak (Library of Marine Samples, Korea Institute of Ocean Science and Technology) ;
  • Hyeon Ho Shin (Library of Marine Samples, Korea Institute of Ocean Science and Technology)
  • 투고 : 2023.11.30
  • 심사 : 2023.12.19
  • 발행 : 2023.12.31
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초록

The morphological features of germling cells were examined to identify an unspecified resting cyst (described as Cochlodinium cf. polykrikoides-like resting cyst) in the Korean coastal area. LSU rRNA gene sequences were also obtained from a strain established from the germling cells. The resting cysts isolated from Korean coastal sediment were characterized as being brown in color, having a large dark-red body, and fibrous lobed ornaments. The germling cells were ellipsoidal with an irregular outline and had an open comma-shaped ASC (apical structure complex), a wide and deep cingulum, and a deep sulcus. These morphological features were consistent with those of previously described harmful dinoflagellate Pseudocochlodinium profundisulcus. The molecular phylogeny revealed that the germling cells and P. profundisulcus were conspecific. Based on these morphological and phylogenetic data, this study documents the occurrence of P. profundisulcus in a Korean coastal area for the first time.

키워드

과제정보

This work was supported by the management of Marine Fishery Bio-resources Center(2023) funded by the National Marine Biodiversity Institute of Korea (MABIK), the Korean Culture Collection of Microalgae and Collaboration Center(NRF-2022M3H9A1083416) and the KIOST project(PEA0121).

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