The toxic benthic dinoflagellate Prorocentrum maculosum Faust is a synonym of Prorocentrum hoffmannianum Faust

Three strains of the toxic benthic dinoflagellate Prorocentrum hoffmannianum were isolated in the Canary Islands (north-east Atlantic Ocean, Spain). The identity of the strains was determined by phylogenetic analyses of partial LSU rDNA (D1-D2 regions) but their morphology based on SEM images corres...

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Bibliographic Details
Published in:Harmful Algae
Main Authors: Rodríguez, Francisco, Riobó, Pilar, Crespín, Guillermo D., Hernández Daranas, Antonio, de Vera, Caterina R., Norte, Manuel, Fernández, José J., Fraga, Santiago
Other Authors: Universidad de Vigo, Instituto Español de Oceanografía
Format: Article in Journal/Newspaper
Language:English
Published: Elsevier 2018
Subjects:
Benthic dinoflagellates
Canary Islands
Dinophysistoxin
Okadaic acid
Prorocentrum
LSUrRNA
North East Atlantic
Online Access:http://hdl.handle.net/10261/213172
https://doi.org/10.1016/j.hal.2018.06.009
https://doi.org/10.13039/501100011034
https://doi.org/10.13039/501100006761
Description
Summary:Three strains of the toxic benthic dinoflagellate Prorocentrum hoffmannianum were isolated in the Canary Islands (north-east Atlantic Ocean, Spain). The identity of the strains was determined by phylogenetic analyses of partial LSU rDNA (D1-D2 regions) but their morphology based on SEM images corresponded to P. maculosum. Their toxin profiles were analyzed by liquid chromatography and high resolution mass spectrometry analysis (LC–HRMS) on cell extracts and culture media. Okadaic acid and three analogs were detected in all strains. Rather, in culture media the detected compounds were variable among strains, two of them being okadaic acid analogs not found on cell extracts. As a result, the taxonomy of the species was revised and P. maculosum is proposed as a junior synonym of P. hoffmannianum whose description is emended. Peer reviewed

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