期刊
HARMFUL ALGAE
卷 2, 期 3, 页码 201-206出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/S1568-9883(03)00042-8
关键词
alexandrium tamarense; detoxilication; excretion; mussel; Mytilus galloprovincialis; PSP toxins; seawater; biotransformation
Mussels (Mytilus galloprovincialis) were experimentally contaminated with paralytic shellfish poisoning (PSP) toxins by being fed with the toxic dinoflagellate Alexandrium tamarense, and changes in toxin content and specific composition during the decontamination period were analyzed by high-performance liquid chromatography (HPLC). Toxins excreted by the mussels into the seawater were also recovered using an activated charcoal column and analyzed by HPLC. The predominant toxins in A. tamarense, mussels, and seawater were the N-sulfocarbamoyl-11-hydrosulfate toxins (C1,2) and carbamate gonyautoxins-1,4 (GTX1,4). There were no remarkable differences in the relative proportions of the predominant toxins within A. tamarense, mussels and seawater. Because the relative proportion of the various toxin analogues excreted by the mussels was similar to that within their tissues during detoxification, it appeared that the selective release of particular toxins by the mussels was unlikely. The total amount of toxin lost from mussels was nearly equal to that which was found dissolved in the seawater, suggesting that, at least the early stages of mussel detoxification, most losses can be accounted for by excretion. (C) 2003 Elsevier B.V. All rights reserved.
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