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Actualités anglophones Alexandrium minutum

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Mol Ecol. 2016 Oct;25(20):5129-5143. Evolutionary processes and cellular functions underlying divergence in Alexandrium minutum. J. BLACK SEA/ MEDITERRANEAN ENVIRONMENT - 2016 - Relationship between dinoflagellate Alexandrium minutum (Halim) and environmental factors in Homa Lagoon (İzmir Bay) Talanta January 2016, Volume 147 Rapid detection and quantification of the marine toxic algae, Alexandrium minutum, using a super-paramagnetic immunochromatographic strip test. FRONTIERS IN MICROBIOLOGY 01/05/15 Paralytic shellfish toxin content is related to genomic sxtA4 copy number in Alexandrium minutum strains. 1Department of Biosciences, University of Oslo, Oslo, Norway2U.A.

FRONTIERS IN MICROBIOLOGY 01/05/15 Paralytic shellfish toxin content is related to genomic sxtA4 copy number in Alexandrium minutum strains

Microalgas Nocivas (Consejo Superior de Investigaciones Científicas – Instituto Español de Oceanografía), Instituto de Investigaciones Marinas, Vigo, Spain3Centre for Ecological and Evolutionary Synthesis, Department of Biosciences, University of Oslo, Oslo, Norway4Laboratoire Adaptation et Diversité en Milieu Marin, CNRS, UMR 7144, Roscoff, France5Sorbonne Universités – Université Pierre et Marie Curie, UMR 7144, Roscoff, France6Aquatic Ecology, Lund University, Lund, Sweden7U.A. Microalgas Nocivas (Consejo Superior de Investigaciones Científicas – Instituto Español de Oceanografía), Instituto Español de Oceanografía, Vigo, Spain Dinoflagellates are microscopic aquatic eukaryotes with huge genomes and an unusual cell regulation. For example, most genes are present in numerous copies and all copies seem to be obligatorily transcribed. Received: 03 September 2014; Accepted: 17 April 2015; Published online: 01 May 2015. Molecular Ecology Volume 23, Issue 3, pages 549–560, February 2014 Spatiotemporal changes in the genetic diversity of harmful algal blooms caused by the toxic dinoflagellate Alexandrium minutum.

UNIVERSITE PARIS 06 31/10/14 Direct and fast detection of Alexandrium minutum algae by using high frequency microbalance. Glob Chang Biol. 2015 May 29. Warm temperature acclimation impacts metabolism of paralytic shellfish toxins from Alexandrium minutum in commercial oysters. Aquat Toxicol. 2015 Jan;158:41-9. The toxic dinoflagellate Alexandrium minutum disrupts daily rhythmic activities at gene transcription, physiological and behavioral levels in the oyster Crassostrea gigas. Mar. Drugs 2014, 12(10), 5258-5276; SxtA and sxtG Gene Expression and Toxin Production in the Mediterranean Alexandrium minutum (Dinophyceae)

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Mar. Drugs 2014, 12(10), 5258-5276; SxtA and sxtG Gene Expression and Toxin Production in the Mediterranean Alexandrium minutum (Dinophyceae)

Introduction Dinoflagellates are unicellular protists that play important ecological roles in marine and freshwater habitats. Approximately 2000 species of dinoflagellates are known to date, most of which are found in marine habitats [1,2]. In the marine environment, they are important primary producers, both as free living phytoplankton and symbionts of reef forming corals or other animals [3].

Dinoflagellates also produce a wide variety of secondary metabolites including a diverse array of toxins that have a significant impact on marine ecosystems and fisheries. Nearly all the classical seafood poisoning syndromes, paralytic- (PSP), diarrhetic- (DSP), neurotoxic- (NSP), azaspiracid shellfish poisoning (AZP), and ciguatera fish poisoning (CFP), are caused by dinoflagellate toxins.

In recent years, A. minutum has been studied for identifying genes and expression patterns involved in critical pathways, such as those for toxin production [28]. 2. Malaysian Journal of Science 32 (SCS Sp Issue) : 65-80 (2013) Rapid Detection of Toxic Dinoflagellate, Alexandrium Minutum (Dino. Harmful Algae 4 (2005) 109–121 Toxin composition variations in cultures of Alexandrium species isolated from the coastal waters.

Harmful Algae 4 (2005) 109–121 Toxin composition variations in cultures of Alexandrium species isolated from the coastal waters of southern China – guatemalt

J Microbiol Methods. 2014 Jun 11;104C:49-54. Direct and fast detection of Alexandrium minutum algae by using high frequency micr.

J Microbiol Methods. 2014 Jun 11;104C:49-54. Direct and fast detection of Alexandrium minutum algae by using high frequency microbalance. – guatemalt

Sains Malaysiana 41(12)(2012): 1509–1515 Harmful Algal Blooms in Malaysian Waters. World J Microbiol Biotechnol. 2012 Dec;28(12):3255-60. Detection and quantification of cultured marine Alexandrium species by re.

World J Microbiol Biotechnol. 2012 Dec;28(12):3255-60. Detection and quantification of cultured marine Alexandrium species by real-time PCR. Zhang F, Li Z. – guatemalt

Harmful Algae Volume 26, June 2013, Pages 45–51 Effects of the dinoflagellate Alexandrium minutum and its toxin (saxitoxin) on t. AQUACULTURE Volume 298, Issues 3–4, 7 January 2010, Behavioral responses of Crassostrea gigas exposed to the harmful algae Alexa. JOURNAL OF MARINE SYSTEMS - NOV 2010 - Alexandrium minutum growth controlled by phosphorus: An applied model. IRTA - 2012 - Levels of PSP toxins in bivalves exposed to natural blooms of Alexandrium minutum in Catalan harbours. The development, validation, comparison and evaluation of analytical methods for marine toxins rely on the availability of toxic material.

IRTA - 2012 - Levels of PSP toxins in bivalves exposed to natural blooms of Alexandrium minutum in Catalan harbours

Within the project JACUMAR PSP, our interest is mainly focused on autochthonous bivalve species with the toxic profile of Alexandrium minutum, since this is the principal species involved regionally in PSP outbreaks. Mussels and oysters were exposed during few days in the harbor of Vilanova i la Geltrú, to blooms reaching a maximum A. minutum concentration of 200,000 cells L-1 in 2008, and 40,000 and 800,000 cells L-1, in 2009. Mussels, oysters and clams were exposed to one bloom of 22,000 cells L-1 in the harbor of Cambrils in 2009.

In all situations higher toxic levels analyzed by HPLC-FD with postcolumn oxidation were observed in mussels (i.e. 1,200-2,500 μg eq. STX kg-1) than in oysters (i.e. 60-800 μg eq.