Toxicity screening of 13 Gambierdiscus strains using neuro-2a and
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AuthorsPisapia, F. (Francesco); Holland, W.C. (William); Hardison, D.R. (Ramsom); Litaker, R.W. (Wayne); Fraga, S. (Santiago); Nishimura, T. (Tomohiro); Adachi, M. (Masao); Lam, N. (Nguyen-Ngoc); Séchet, V. (Veronique); Amzil, Z. (Zouer); Herrenknecht, C. (Christine); Hess, P. (Philipp)
Species in the epi-benthic dinoflagellate genus Gambierdiscus produce ciguatoxins (CTXs) and maitotoxins (MTXs), which are among the most potent marine toxins known. Consumption of fish contaminated with sufficient quantities of CTXs causes Ciguatera Fish Poisoning (CFP), the largest cause of non-bacterial food poisoning worldwide. Maitotoxins, which can be found in the digestive system of fish, could also contribute to CFP if such tissues are consumed. Recently, an increasing number of Gambierdiscus species have been identified; yet, little is known about the variation in toxicity among Gambierdiscus strains or species. This study is the first assessment of relative CTX- and MTX-toxicity of Gambierdiscus species from areas as widespread as the North-Eastern Atlantic Ocean, Pacific Ocean and the Mediterranean Sea. A total of 13 strains were screened: (i) seven Pacific strains of G. australes, G. balechii, G. caribaeus, G. carpenteri, G. pacificus, G. scabrosus and one strain ...
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