Results 91 to 100 of about 1,940 (188)

First record of the spatial organization of the nucleosome‐less chromatin of dinoflagellates: The nonrandom distribution of microsatellites and bipolar arrangement of telomeres in the nucleus of Gambierdiscus australes (Dinophyceae)

Journal of Phycology, 2022
Dinoflagellates are a group of protists whose exceptionally large genome is organized in permanently condensed nucleosome‐less chromosomes. In this study, we examined the potential role of repetitive DNAs in both the structure of dinoflagellate ...
Á. Cuadrado, R. Figueroa, M. Sixto, I. Bravo, A. de Bustos   +4 more
semanticscholar   +1 more source

Taxonomic characterization and toxicity assessment of strains of Gambierdiscus belizeanus from Seychelles, southwestern Indian Ocean.

Harmful Algae
Benthic dinoflagellates associated with human ciguatera poisoning are present in the Indian Ocean and species such as Fukuyoa (formerly Gambierdiscus) yasumotoi, G. toxicus and G. belizeanus have been reported since the mid 90s.
N. Chomérat, Nikita Rose, Laura Lavenu, Lisbet Díaz-Asencio, Clara Belmont, S. Hollanda, Francois Oberhansli, A. Tunin‐Ley, Jean Turquet, Marie-Yasmine Dechraoui Bottein   +9 more
semanticscholar   +1 more source

Accumulation and depuration of ciguatoxins in green-lipped mussels fed toxic Gambierdiscus polynesiensis: Evidence from controlled feeding and transcriptomic analysis.

Ecotoxicology and Environmental Safety
Ciguatera poisoning (CP) was traditionally associated with fish consumption, but other marine invertebrates such as gastropods and bivalves can also serve as non-traditional vectors.
Laura Biessy, J. S. Murray, J. Pearman, J. Viallon, H. Darius, M. Chinain, A. Sim, Emillie M. F. Passfield, Lesley L. Rhodes, Kirsty F. Smith   +9 more
semanticscholar   +1 more source

STUDY OF PRODUCTION AND TOXICITY OF CULTUREDGAMBIERDISCUS TOXICUS

The Biological Bulletin, 1987
Gambierdiscus toxicus has been described as the chief producer of ciguateric toxins: ciguatoxin (CTX) and maitotoxin (MTX). Dr. R. Bagnis (Malarde Institute, Tahiti) provided us with a strain of this benthic dinoflagellate in 1981 to study its cytological, physiological, and toxicological characteristics.The growth of G.
openaire   +2 more sources

Novel biosensor documents toxin-producing taxa (Gambierdiscus and Ostreopsis) along the Iberian coastline

Phycologia
Increases in Harmful Algal Blooms (HABs) of toxic microalgae represent a growing concern worldwide. Poleward spread of HAB distribution is linked to climate change.
Linda K. Medlin, Francisco Rodríguez, Gerado Mengs, B. Reguera   +3 more
semanticscholar   +1 more source

Ciguatera poisoning in French Polynesia: insights into the novel trends of an ancient disease

New Microbes and New Infections, 2019
Ciguatera is a non-bacterial seafood poisoning highly prevalent in French Polynesia where it constitutes a major health issue and a major threat to food sustainability and food security for local populations. Ciguatera results from the bioaccumulation in
M. Chinain, C.M. Gatti, M. Roué, H.T. Darius   +3 more
doaj   +1 more source

Diversity and Toxicity of the Genus Coolia Meunier in Brazil, and Detection of 44-methyl Gambierone in Coolia tropicalis

Toxins, 2020
Coolia is a genus of marine benthic dinoflagellates which is widely distributed in tropical and temperate zones. Toxicity has been reported in selected Coolia species, although the identity of causative compounds is still controversial. In this study, we
Carlos Eduardo Junqueira de Azevedo Tibiriçá, Manoella Sibat, Luciano Felício Fernandes, Gwenaël Bilien, Nicolas Chomérat, Philipp Hess, Luiz L. Mafra Jr   +6 more
doaj   +1 more source

Development of a quantitative PCR assay to detect Gambierdiscus holmesii, a ciguatoxin producing species from Australian waters

PLoS ONE
A quantitative polymerase chain reaction (qPCR) assay was developed for the species-specific detection and quantification of Gambierdiscus holmesii, recently reported to produce known ciguatoxin (CTX) analogues in north Queensland. The assay was designed
Caroline Dornelles de Azevedo, Greta Gaiani, Matthew Tesoriero, Kirsty Smith, Shauna A. Murray   +4 more
semanticscholar   +1 more source

Bioguided fractionation of Gambierdiscus extracts

, 2017
Masters' degree in Environmental Marine Biology - University of Trieste (Italy) Internship at the Phycotoxins Laboratory - IFREMER Centre Atlantique, Nantes (France)
openaire   +1 more source

Genus Gambierdiscus in the Canary Islands (NE Atlantic Ocean) with Description of Gambierdiscus silvae sp. nov., a New Potentially Toxic Epiphytic Benthic Dinoflagellate

Protist, 2014
Species of the dinoflagellate genus Gambierdiscus are the cause of Ciguatera Fish Poisoning, common in tropical areas. Nevertheless, until recently this syndrome was not reported in the NE Atlantic Ocean. A new photosynthetic dinoflagellate species, Gambierdiscus silvae sp. nov. is described based on samples taken from tide pools on rocky shores of the
Fraga, S. (Santiago), Rodríguez, F. (Francisco)   +1 more
openaire   +4 more sources