Results 161 to 170 of about 2,815 (172)
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à propos de gambierdiscus toxicus
Revue Française des Laboratoires, 2002Resume Des irritations parfois invalidantes des muqueuses oculaires et nasales, apparues chez des individus travaillant sur le cote ocean d'un atoll, semblent dues a la presence, dans les embruns, de Gambierdiscus toxicus, dont la concentration anormale serait due a un remaniement du massif corallien.
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Toxicity and growth characteristics of epiphytic dinoflagellate Gambierdiscus silvae in Japan
Harmful Algae, 2022The genus Gambierdiscus is a marine benthic/epiphytic dinoflagellate that has been investigated worldwide as the causative agent of ciguatera poisoning (CP). In Japan, CP occurs mainly in the subtropical region and sporadically in the temperate region.
Hiroshi Funaki +7 more
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Gambierone, a Ladder-Shaped Polyether from the Dinoflagellate Gambierdiscus belizeanus
Organic Letters, 2015A new natural product named gambierone (1) was isolated from the cultured dinoflagellate Gambierdiscus belizeanus. The structure of this compound features an unprecedented polyether skeleton and an unusual right-hand side chain. Its relative configuration was fully determined by interpretation of ROESY experiment and comparison between experimental and
Inés Rodríguez +8 more
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Global distribution of ciguatera causing dinoflagellates in the genus Gambierdiscus
Toxicon, 2010Dinoflagellates in the genus Gambierdiscus produce toxins that bioaccumulate in tropical and sub-tropical fishes causing ciguatera fish poisoning (CFP). Little is known about the diversity and distribution of Gambierdiscus species, the degree to which individual species vary in toxicity, and the role each plays in causing CFP.
R Wayne, Litaker +8 more
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Evaluation of Gambierdiscus survival after exposure to ballast water
Harmful Algae, 2011Abstract The dinoflagellate Gambierdiscus was exposed to ballast water from a trans-oceanic vessel, and maintained at a variety of temperatures in the dark to determine if viability would be maintained. Logarithmically growing Gambierdiscus inocula were admixed (1:6, vol:vol) with ballast water, maintained in the dark at 22.6 °C, 24.6 °C, 26.8 °C and
P.K. Bienfang +3 more
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Metabolic relationships of uncultured bacteria associated with the microalgae Gambierdiscus
Environmental Microbiology, 2019Summary Microbial communities inhabit algae cell surfaces and produce a variety of compounds that can impact the fitness of the host. These interactions have been studied via culturing, single‐gene diversity and metagenomic read survey methods that are limited by culturing biases and fragmented genetic ...
Ian M. Rambo +4 more
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Isolation and characterisation of new compounds from Gambierdiscus belizeanus
Planta Medica, 2016Ciguatera fish poisoning (CFP) is a human foodborne intoxication caused by ingestion of tropical fish contaminated with ciguatoxins (CTXs), potent polyether compounds. These toxins are produced by dinoflagellates from the genus Gambierdiscus. These microalgae are known to produce several toxins such as maitotoxin (MTX), gambieric acid and derivatives ...
Rodriguez, L. +6 more
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A study of toxin production by Gambierdiscus toxicus in culture
Toxicon, 1986The dinoflagellate Gambierdiscus toxicus was cultivated under different environmental conditions. By an improved toxin extraction procedure the toxicity of methanol extracts was evaluated. Medium composition, temperature decrease, origin (clonal or not clonal) and culture age did not significantly modify toxin production.
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Cytotoxic quantification of maitotoxin-like activity from the dinoflagellate Gambierdiscus toxicus
Toxicology in Vitro, 1994Gambierdiscus toxicus is a marine dinoflagellate involved in the food-borne disease ciguatera. Its toxicity is mainly due to maitotoxin, a hydrophilic toxin, the chemical structure of which has recently been described. This toxin increases internal Ca(2+) concentration and triggers phosphoinositide breakdown.
G, Diogène +3 more
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