Paralytic shellfish profiles produced by the toxic dinoflagellate pyrodinium bahamense from Sepanggar Bay, Malaysia
© Universiti Putra Malaysia Press.Pyrodinium bahamense var compressum is a harmful dinoflagellate that produces saxitoxin, which causes paralytic shellfish poisoning (PSP) that is deadly to humans. A non-axenic culture of P. bahamense was established using f/2 media from samples collected from Sepan...
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| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English English |
| Published: |
ResearchGate
2023
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| Subjects: | |
| Online Access: | https://eprints.ums.edu.my/id/eprint/36025/1/ABSTRACT.pdf https://eprints.ums.edu.my/id/eprint/36025/2/FULL%20TEXT.pdf https://eprints.ums.edu.my/id/eprint/36025/ https://doi.org/10.47836/pjtas.46.1.20 |
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| Institution: | Universiti Malaysia Sabah |
| Language: | English English |
| Summary: | © Universiti Putra Malaysia Press.Pyrodinium bahamense var compressum is a harmful dinoflagellate that produces saxitoxin, which causes paralytic shellfish poisoning (PSP) that is deadly to humans. A non-axenic culture of P. bahamense was established using f/2 media from samples collected from Sepanggar Bay, Kota Kinabalu, Sabah. Toxin analyses of cultures harvested on days 60, 120, 180, and 360 were performed using high-performance liquid chromatography with a fluorescence detector and compared with samples collected at the same location during the bloom in 2021. The highest cell toxin content was found in the bloom sample (86.2 fmole/cell), and no toxin was detected in the culture 60 days old. In addition, cell toxin content for the P. bahamense culture was low (9.4-16.5 fmole/cell). Based on the toxin profile, P. bahamense comprises 84-98% of gonyautoxin 4. In summary, the current findings add to the existing knowledge of the toxin profiling of P. bahamense, a toxic, harmful algal bloom species, thus, leading to better toxin management. |
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