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Variability in Paralytic Shellfish Toxin Profiles and Dinoflagellate Diversity in Mussels and Seawater Collected during Spring in Korean Coastal Seawater.
Choi, Dong Han; Yang, Wonseok; Kim, Young-Eun; Park, Bum Soo; Sung, Jiyeon; Choi, Jaeho; Rho, Jung-Rae; Han, Young Seok; Lee, Yeonjung.
Affiliation
  • Choi DH; Ocean Climate Response and Ecosystem Research Department, Korea Institute of Ocean Science and Technology, Busan 49111, Republic of Korea.
  • Yang W; Department of Convergence Study on the Ocean Science and Technology, Ocean Science and Technology School, Korea Maritime and Ocean University, Busan 49112, Republic of Korea.
  • Kim YE; Ocean Climate Response and Ecosystem Research Department, Korea Institute of Ocean Science and Technology, Busan 49111, Republic of Korea.
  • Park BS; Department of Convergence Study on the Ocean Science and Technology, Ocean Science and Technology School, Korea Maritime and Ocean University, Busan 49112, Republic of Korea.
  • Sung J; Environmental Measurement & Analysis Center, National Institute of Environmental Research, Incheon 22689, Republic of Korea.
  • Choi J; Department of Life Science, College of Natural Sciences, Hanyang University, Seoul 04763, Republic of Korea.
  • Rho JR; Hanyang Institute of Bioscience and Biotechnology, Hanyang University, Seoul 04763, Republic of Korea.
  • Han YS; Research Institute for Natural Sciences, Hanyang University, Seoul 04763, Republic of Korea.
  • Lee Y; Department of Life Science, College of Natural Sciences, Hanyang University, Seoul 04763, Republic of Korea.
Toxins (Basel) ; 16(8)2024 Jul 31.
Article in En | MEDLINE | ID: mdl-39195748
ABSTRACT
Paralytic shellfish toxins (PSTs) are potent neurotoxins produced by certain microalgae, particularly dinoflagellates, and they can accumulate in shellfish in coastal seawater and thus pose significant health risks to humans. To explore the relationship between toxicity and PST profiles in seawater and mussels, the spatiotemporal variations in PST concentrations and profiles were investigated along the southern coast of Korea under peak PST levels during spring. Seawater and mussel samples were collected biweekly from multiple stations, and the toxin concentrations in the samples were measured. Moreover, the dinoflagellate community composition was analyzed using next-generation sequencing to identify potential PST-producing species. The PST concentrations and toxin profiles showed substantial spatiotemporal variability, with GTX1 and GTX4 representing the dominant toxins in both samples, and C1/2 tending to be higher in seawater. Alexandrium species were identified as the primary sources of PSTs. Environmental factors such as water temperature and salinity influenced PST production. This study demonstrates that variability in the amount and composition of PSTs is due to intricate ecological interactions. To mitigate shellfish poisoning, continuous monitoring must be conducted to gain a deeper understanding of these interactions.
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Full text: 1 Collection: 01-internacional Database: MEDLINE Main subject: Marine Toxins / Neurotoxins Country/Region as subject: Asia Language: En Journal: Toxins (Basel) Year: 2024 Document type: Article Country of publication: Switzerland

Full text: 1 Collection: 01-internacional Database: MEDLINE Main subject: Marine Toxins / Neurotoxins Country/Region as subject: Asia Language: En Journal: Toxins (Basel) Year: 2024 Document type: Article Country of publication: Switzerland