Ostreopsis cf. ovata in the French Mediterranean coast: molecular characterisation and toxin profile

Type : ACL
Nature : Production scientifique
Au bénéfice du Laboratoire : Oui
Statut de publication : Publié
Année de publication : 2012
Auteurs (11) : SÉCHET Véronique SIBAT M CHOMÉRAT Nicolas NEZAN E GROSSEL H LEHEBEL-PERON J,b JAUFFRAIS T GANZIN N MARCO-MIRALLES F LEMEE Rodolphe AMZIL Zouher
Revue scientifique : Cryptogamie Algologie
Volume : 33
Fascicule : 2
Pages : 89-98
DOI : 10.7872/crya.v33.iss2.2011.089
URL : <go to isi>://wos:000306043100004
Abstract : The presence of dinoflagellates of the genus Ostreopsis along Mediterranean coasts was first observed in 1972, in the bay of Villefranche-sur-Mer. However, over the past ten years, harmful events related to this benthic dinoflagellate have been reported in Italian, Spanish, Greek, French, Tunisian and Algerian coastal areas. In France, during a hot period in August 2006, cases of dermatitis and respiratory problems were registered in Marseille area. At that time, a link to the proliferation of Ostreopsis was highlighted for the first time in that area. A specific monitoring was designed and implemented in the summer 2007. Two strains of Ostreopsis cf. ovata, collected in 2008 from Villefranche-sur-Mer and Morgiret coastal waters and grown in culture, were identified by molecular analysis and studied to characterise their growth and toxin profile. Liquid chromatography-mass spectrometry (LC-MS/MS) indicated that both strains produced ovatoxin-a (OVTX-a) as the major component (ca. 90%), and traces of palytoxin (PLTX). Toxin content was determined at the end of the exponential growth phase with highest concentration of 55 pg.cell(-1) of OVTX-a and 2.5 pg.cell(-1) of PLTX.
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Commentaire : Times Cited: 2 Lemee, Rodolphe/G-3228-2011; jauffrais, thierry/H-1872-2012 Lemee, Rodolphe/0000-0002-7800-2220; 2
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Citation :
Séchet V, Sibat M, Chomérat N, Nezan E, Grossel H, Lehebel-Peron JB, Jauffrais T, Ganzin N, Marco-Miralles F, Lemee R, Amzil Z (2012) Ostreopsis cf. ovata in the French Mediterranean coast: molecular characterisation and toxin profile. Cryptogamie Algol 33: 89-98 | doi: 10.7872/crya.v33.iss2.2011.089