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All Journal Jurnal Kelautan : Indonesian Journal of Marine Science and Technology
Suriyanti Su Nyun Pau
School of Environmental Science and Natural Resources, Faculty Science and Technology, Universiti Kebangsaan Malaysia, 43600 Bangi, Selangor, Malaysia

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SCREENING OF TOXIC MARINE NITZSCHIA SPECIES (BACILLARIOPHYCEAE) IN MALAYSIA Suriyanti Su Nyun Pau; Dzulhelmi Muhammad Nasir; Gires Usup
Jurnal Kelautan Vol 10, No 1 (2017)
Publisher : Department of Marine Sciences, Trunojoyo University of Madura, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21107/jk.v10i1.2635

Abstract

Amnesic Shellfish Poisoning (ASP) is a type of intoxication caused by the neurotoxin domoic acid (DA). The diatom genus Nitzschia is capable of producing this toxin. Screening for the presence of toxic Nitzschia spp. was carried out at various estuaries in Malaysia. Nitzschia-like cells were isolated and established into clonal cultures. Late stationary phase of cultures were harvested and tested for toxin production using HPLC. Toxin production and compound was verified by LC-MS. From the analyses, at least three cultures were detected with DA, while the rest of the cultures did not show detectable amounts of DA. The localities of the toxic species are Johor and Sabah. Here we conclude that toxic Nitzschia species are present in Malaysian water.Keywords: diatom, estuary, intoxication, safety, toxic 
Co-Authors Dzulhelmi Muhammad Nasir Gires Usup