Paralytic shellfish profiles produced by the toxic dinoflagellate pyrodinium bahamense from Sepanggar Bay, Malaysia

Asilah Al -Has and Normawaty Mohammad Noor and Sitti Raehanah Muhamad Shaleh and Mohd Nor Azman Ayub and Deny Susanti and Ghaffur Rahim Mustakim (2023) Paralytic shellfish profiles produced by the toxic dinoflagellate pyrodinium bahamense from Sepanggar Bay, Malaysia. Pertanika Journal of Tropical Agricultural Science, 46. pp. 359-372. ISSN 22318542, 15113701

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URL: https://www.researchgate.net/publication/368712502...

Abstract

© 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.

Item Type:	Article
Keyword:	Gonyautoxin, HPLC, PSP, Pyrodinium bahamense, saxitoxin.
Subjects:	Q Science > Q Science (General) > Q1-390 Science (General) > Q1-295 General Q Science > QK Botany > QK1-989 Botany > QK504-(638) Cryptogams
Department:	INSTITUTE > Borneo Marine Research Institute
Depositing User:	ABDULLAH BIN SABUDIN -
Date Deposited:	01 Sep 2023 08:45
Last Modified:	01 Sep 2023 08:45
URI:	https://eprints.ums.edu.my/id/eprint/36025

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