Pertanika Journal of Tropical Agricultural Science | |
Paralytic Shellfish Profiles Produced by the Toxic Dinoflagellate Pyrodinium bahamense from Sepanggar Bay, Malaysia | |
article | |
Asilah Al-Has1  Normawaty Mohammad-Noor1  Sitti Raehanah M. Shaleh2  Mohd Nor Azman Ayub3  Deny Susanti1  Ghaffur Rahim Mustakim2  | |
[1] Kuliyyah of Science, International Islamic University Malaysia;Borneo Marine Research Institute, Universiti Malaysia Sabah;Fisheries Research Institute | |
关键词: Gonyautoxin; HPLC; PSP; Pyrodinium bahamense; saxitoxin; | |
DOI : 10.47836/pjtas.46.1.20 | |
学科分类:农业科学(综合) | |
来源: Universiti Putra Malaysia, Universiti Pertanian Malaysia Press | |
【 摘 要 】
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.
【 授权许可】
Unknown
【 预 览 】
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RO202307080002176ZK.pdf | 643KB | download |