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      First identification of the neurotoxin homoanatoxin-a from mats of Hydrocoleum lyngbyaceum (marine cyanobacterium) possibly linked to giant clam poisoning in New Caledonia.

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      Animals, Bacterial Toxins, analysis, chemistry, Base Sequence, Bicyclo Compounds, Heterocyclic, Bivalvia, microbiology, Ciguatera Poisoning, epidemiology, Cyanobacteria, Gas Chromatography-Mass Spectrometry, Humans, Marine Biology, Molecular Sequence Data, New Caledonia, Polymerase Chain Reaction, RNA, Transfer, genetics, Sequence Homology, Nucleic Acid

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          Abstract

          We report the first identification of homoanatoxin-a from benthic marine cyanobacteria (Hydrocoleum lyngbyaceum) samples collected in Lifou (Loyalty Islands, New Caledonia), where cases of giant clams (Tridacna maxima) intoxications were recorded during a severe ciguatera fish poisoning outbreak. Homoanatoxin-a was also detected in extracts of giant clams harvested in the surroundings of the contaminated area suggesting the possible link between these poisoning events and the occurrence of potentially neurotoxic Hydrocoleum. Copyright 2009 Elsevier Ltd. All rights reserved.

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