Results 1 to 10 of about 279 (95)

Transcriptomic analysis of polyketide synthases in a highly ciguatoxic dinoflagellate, Gambierdiscus polynesiensis and low toxicity Gambierdiscus pacificus, from French Polynesia. [PDF]

PLoS ONE, 2020
Marine dinoflagellates produce a diversity of polyketide toxins that are accumulated in marine food webs and are responsible for a variety of seafood poisonings.
Frances M Van Dolah, Jeanine S Morey, Shard Milne, André Ung, Paul E Anderson, Mireille Chinain   +5 more
doaj   +5 more sources

Targeted Metabolite Fingerprints of Thirteen Gambierdiscus, Five Coolia and Two Fukuyoa Species [PDF]

Marine Drugs
The genus Gambierdiscus produces an array of bioactive hydrophilic and lipophilic secondary metabolites that range in mode of action and toxicity. In this study, the metabolite fingerprint was mapped for thirteen Gambierdiscus, five Coolia and two ...
J. Sam Murray, Emillie M. F. Passfield, Lesley L. Rhodes, Jonathan Puddick, Sarah C. Finch, Kirsty F. Smith, Roel van Ginkel, Elizabeth M. Mudge, Tomohiro Nishimura, Hiroshi Funaki, Masao Adachi, Michèle R. Prinsep, D. Tim Harwood   +12 more
doaj   +5 more sources

Molecular Identification of Gambierdiscus and Fukuyoa (Dinophyceae) from Environmental Samples [PDF]

Marine Drugs, 2017
Ciguatera Fish Poisoning (CFP) is increasing across the Pacific and the distribution of the causative dinoflagellates appears to be expanding. Subtle differences in thecal plate morphology are used to distinguish dinoflagellate species, which are ...
Kirsty F. Smith, Laura Biessy, Phoebe A. Argyle, Tom Trnski, Tuikolongahau Halafihi, Lesley L. Rhodes   +5 more
doaj   +4 more sources

Comparative Study on the Performance of Three Detection Methods for the Quantification of Pacific Ciguatoxins in French Polynesian Strains of Gambierdiscus polynesiensis [PDF]

Marine Drugs, 2022
Gambierdiscus and Fukuyoa dinoflagellates produce a suite of secondary metabolites, including ciguatoxins (CTXs), which bioaccumulate and are further biotransformed in fish and marine invertebrates, causing ciguatera poisoning when consumed by humans ...
Hélène Taiana Darius, Taina Revel, Jérôme Viallon, Manoëlla Sibat, Philippe Cruchet, Sébastien Longo, Donnie Ransom Hardison, William C. Holland, Patricia A. Tester, R. Wayne Litaker, Jennifer R. McCall, Philipp Hess, Mireille Chinain   +12 more
doaj   +2 more sources

Tissue Distribution and Metabolization of Ciguatoxins in an Herbivorous Fish following Experimental Dietary Exposure to Gambierdiscus polynesiensis [PDF]

Marine Drugs, 2023
Ciguatoxins (CTXs), potent neurotoxins produced by dinoflagellates of the genera Gambierdiscus and Fukuyoa, accumulate in commonly consumed fish species, causing human ciguatera poisoning.
Rachel J. Clausing, Hela Ben Gharbia, Khalil Sdiri, Manoëlla Sibat, Ma. Llorina Rañada-Mestizo, Laura Lavenu, Philipp Hess, Mireille Chinain, Marie-Yasmine Dechraoui Bottein   +8 more
doaj   +2 more sources

Effects of pH and Nutrients (Nitrogen) on Growth and Toxin Profile of the Ciguatera-Causing Dinoflagellate Gambierdiscus polynesiensis (Dinophyceae) [PDF]

Toxins, 2020
Ciguatera poisoning is a foodborne disease caused by the consumption of seafood contaminated with ciguatoxins (CTXs) produced by dinoflagellates in the genera Gambierdiscus and Fukuyoa.
Sébastien Longo, Manoëlla Sibat, Hélène Taiana Darius, Philipp Hess, Mireille Chinain   +4 more
doaj   +2 more sources

Tissue Distribution and Elimination of Ciguatoxins in Tridacna maxima (Tridacnidae, Bivalvia) Fed Gambierdiscus polynesiensis [PDF]

Toxins, 2018
Ciguatera is a foodborne disease caused by the consumption of seafood contaminated with ciguatoxins (CTXs). Ciguatera-like poisoning events involving giant clams (Tridacna maxima) are reported occasionally from Pacific islands communities.
Mélanie Roué, Hélène Taiana Darius, André Ung, Jérôme Viallon, Manoella Sibat, Philipp Hess, Zouher Amzil, Mireille Chinain   +7 more
doaj   +2 more sources

Risk of ciguatoxins is shaped by Gambierdiscus community structure. [PDF]

PLoS ONE
Ciguatoxins (CTXs) are produced by marine microbial eukaryotes (Gambierdiscus/Fukuyoa, Dinophyta: Alveolata) that live epiphytically on macroalgae and other substrates. When CTXs accumulate in seafood they cause Ciguatera Poisoning (CP), which affects ca.
Kirsty F Smith, Lesley L Rhodes, Belinda Curley, Arjun Verma, Gurjeet Kohli, David Tim Harwood, James Sam Murray, Jérôme Viallon, Hélène Taiana Darius, Mireille Chinain, Teina Rongo, June Hosking, Phoebe A Argyle, Jacqui Stuart, Shauna A Murray   +14 more
doaj   +2 more sources

Ciguatera Fish Poisoning: The Risk from an Aotearoa/New Zealand Perspective [PDF]

Toxins, 2020
Gambierdiscus and Fukuyoa species have been identified in Aotearoa/New Zealand’s coastal waters and G. polynesiensis, a known producer of ciguatoxins, has been isolated from Rangitāhua/Kermadec Islands (a New Zealand territory).
Lesley L. Rhodes, Kirsty F. Smith, J. Sam Murray, Tomohiro Nishimura, Sarah C. Finch   +4 more
doaj   +2 more sources

A General Food Chain Model for Bioaccumulation of Ciguatoxin into Herbivorous Fish in the Pacific Ocean Suggests Few Gambierdiscus Species Can Produce Poisonous Herbivores, and Even Fewer Can Produce Poisonous Higher Trophic Level Fish [PDF]

Toxins
We adapt previous conceptual and numerical models of ciguateric food chains for the bioaccumulation of Pacific-ciguatoxin-1 (P-CTX-1) to a general model for bioaccumulation of P-CTX3C by parrotfish (Scarus frenatus, S. niger, and S.
Michael J. Holmes, Richard J. Lewis
doaj   +2 more sources