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Criblage bioguidé et analyse CL - SMHR des toxines et d'au tres métabolites d'intérêt chez les dinoflagellés G ambierdiscus et Fukuyoa ArchiMer
Pisapia, Francesco.
The epi-benthic dinoflagellates Gambierdiscus and Fukuyoa produce ciguatoxins (CTXs) and maitotoxins (MTXs), which are among the most potent marine toxins known. CTXs are bio-accumulated and bio-transformed along the marine food chain and cause Ciguatera Fish Poisoning (CFP), the most common non-bacterial foodborne intoxication worldwide. Recently, CFP has been reported from areas previously not considered endemic, namely the Canary Islands, and an increasing number of species has been discovered in these genera. Little is known about the relative toxicity between different species and the toxin congeners produced by these dinoflagellates, especially by strains outside the Pacific Ocean. Several strains of Gambierdiscus and Fukuyoa were screened for their...
Tipo: Text Palavras-chave: Ciguatéra; Gambierdiscus; Fukuyoa; Ciguatoxines; Maïtotoxines; Test neuro-2a; Test hémolytique; Spectrométrie de masse.; Keywords: Ciguatera Fish Poisoning; Gambierdiscus; Fukuyoa; Ciguatoxins; Maitotoxins; Neuro-2a assay; Hemolytic assay; Mass spectrometry.
Ano: 2017 URL: https://archimer.ifremer.fr/doc/00415/52635/53481.pdf
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Use of Mass Spectrometry to Determine the Diversity of Toxins Produced by Gambierdiscus and Fukuyoa Species from Balearic Islands and Crete (Mediterranean Sea) and the Canary Islands (Northeast Atlantic) ArchiMer
Estevez, Pablo; Sibat, Manoella; Leão-martins, José Manuel; Tudó, Angels; Rambla-alegre, Maria; Aligizaki, Katerina; Diogène, Jorge; Gago-martinez, Ana; Hess, Philipp.
Over the last decade, knowledge has significantly increased on the taxonomic identity and distribution of dinoflagellates of the genera Gambierdiscus and Fukuyoa. Additionally, a number of hitherto unknown bioactive metabolites have been described, while the role of these compounds in ciguatera poisoning (CP) remains to be clarified. Ciguatoxins and maitotoxins are very toxic compounds produced by these dinoflagellates and have been described since the 1980s. Ciguatoxins are generally described as the main contributors to this food intoxication. Recent reports of CP in temperate waters of the Canary Islands (Spain) and the Madeira archipelago (Portugal) triggered the need for isolation and cultivation of dinoflagellates from these areas, and their...
Tipo: Text Palavras-chave: Maitotoxins; Ciguatoxins; Gambierdiscus; Fukuyoa; LC-MS; MS; HRMS; QToF; Ciguatera poisoning.
Ano: 2020 URL: https://archimer.ifremer.fr/doc/00629/74081/73530.pdf
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