First identification of a C9-diol-ester of okadaic acid in Dinophysis acuta from Galician Rías Baixas (NW Spain)

Type Article
Date 2018-10
Language English
Author(s) Sibat ManoellaORCID1, Garcia-Portela Maria2, Hess PhilippORCID1
Affiliation(s) 1 : IFREMER, Phycotoxins Lab, Rue Ile d'Yeu, F-44311 Nantes, France.
2 : Oceanog Ctr Vigo, IEO, Subida Radio Faro 50, Vigo 36390, Spain.
Source Toxicon (0041-0101) (Pergamon-elsevier Science Ltd), 2018-10 , Vol. 153 , P. 19-22
DOI 10.1016/j.toxicon.2018.08.005
WOS© Times Cited 4
Keyword(s) Okadaic acid, Dinophysis, Diol ester, Target analysis, HAMS
Abstract

Dinoflagellates of the genus Dinophysis produce okadaic acid (OA) and analogues. Cultures of a strain of Dinophysis acuta isolated from the Galician Rías contained high levels of pectenotoxins but little OA. Isomeric forms of the latter were suspected as the concentration of OA increased after alkaline hydrolysis. High resolution mass spectra of candidate compounds suggest the presence of an OA-C9-diol ester, reported for the first time in Dinophysis acuta.

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