Distribution of Dinophysis species and their association with lipophilic phycotoxins in plankton from the Argentine Sea

Dinophysis is a cosmopolitan genus of marine dinoflagellates, considered as the major proximal source of diarrheic shellfish toxins and the only producer of pectenotoxins (PTX). From three oceanographic expeditions carried out during autumn, spring and late summer along the Argentine Sea (∼38–56°S),...

Descripción completa

Detalles Bibliográficos
Autores principales: Fabro Cerreia Fus, Elena Inés, Almandoz, Gastón Osvaldo, Ferrario, Martha Elba, Tillmann, Urban, Cembella, Allan, Krock, Bernd
Formato: Articulo
Lenguaje:Inglés
Publicado: 2016
Materias:
Botánica
Diarrheic shellfish toxins
Lipophilic toxins
LC–MS/MS
Dinophysis
D. norvegica
Argentine Sea
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/128433
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-128433
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Botánica
Diarrheic shellfish toxins
Lipophilic toxins
LC–MS/MS
Dinophysis
D. norvegica
Argentine Sea
spellingShingle Botánica
Diarrheic shellfish toxins
Lipophilic toxins
LC–MS/MS
Dinophysis
D. norvegica
Argentine Sea
Fabro Cerreia Fus, Elena Inés
Almandoz, Gastón Osvaldo
Ferrario, Martha Elba
Tillmann, Urban
Cembella, Allan
Krock, Bernd
Distribution of Dinophysis species and their association with lipophilic phycotoxins in plankton from the Argentine Sea
topic_facet Botánica
Diarrheic shellfish toxins
Lipophilic toxins
LC–MS/MS
Dinophysis
D. norvegica
Argentine Sea
description Dinophysis is a cosmopolitan genus of marine dinoflagellates, considered as the major proximal source of diarrheic shellfish toxins and the only producer of pectenotoxins (PTX). From three oceanographic expeditions carried out during autumn, spring and late summer along the Argentine Sea (∼38–56°S), lipophilic phycotoxins were determined by liquid chromatography coupled to tandem mass spectrometry (LC–MS/MS) in size-fractionated plankton samples. Lipophilic toxin profiles were associated with species composition by microscopic analyses of toxigenic phytoplankton. Pectenotoxin-2 and PTX-11 were frequently found together with the presence of Dinophysis acuminata and Dinophysis tripos. By contrast, okadaic acid was rarely detected and only in trace concentrations, and dinophysistoxins were not found. The clear predominance of PTX over other lipophilic toxins in Dinophysis species from the Argentine Sea is in accordance with previous results obtained from north Patagonian Gulfs of the Argentine Sea, and from coastal waters of New Zealand, Chile, Denmark and United States. Dinophysis caudata was rarely found and it was confined to the north of the sampling area. Because of low cell densities, neither D. caudata nor Dinophysis norvegica could be biogeographically related to lipophilic toxins in this study. Nevertheless, the current identification of D. norvegica in the southern Argentine Sea is the first record for the southwestern Atlantic Ocean. Given the typical toxigenicity of this species on a global scale, this represents an important finding for future surveillance of plankton-toxin associations.
format Articulo
Articulo
author Fabro Cerreia Fus, Elena Inés
Almandoz, Gastón Osvaldo
Ferrario, Martha Elba
Tillmann, Urban
Cembella, Allan
Krock, Bernd
author_facet Fabro Cerreia Fus, Elena Inés
Almandoz, Gastón Osvaldo
Ferrario, Martha Elba
Tillmann, Urban
Cembella, Allan
Krock, Bernd
author_sort Fabro Cerreia Fus, Elena Inés
title Distribution of Dinophysis species and their association with lipophilic phycotoxins in plankton from the Argentine Sea
title_short Distribution of Dinophysis species and their association with lipophilic phycotoxins in plankton from the Argentine Sea
title_full Distribution of Dinophysis species and their association with lipophilic phycotoxins in plankton from the Argentine Sea
title_fullStr Distribution of Dinophysis species and their association with lipophilic phycotoxins in plankton from the Argentine Sea
title_full_unstemmed Distribution of Dinophysis species and their association with lipophilic phycotoxins in plankton from the Argentine Sea
title_sort distribution of dinophysis species and their association with lipophilic phycotoxins in plankton from the argentine sea
publishDate 2016
url http://sedici.unlp.edu.ar/handle/10915/128433
work_keys_str_mv AT fabrocerreiafuselenaines distributionofdinophysisspeciesandtheirassociationwithlipophilicphycotoxinsinplanktonfromtheargentinesea
AT almandozgastonosvaldo distributionofdinophysisspeciesandtheirassociationwithlipophilicphycotoxinsinplanktonfromtheargentinesea
AT ferrariomarthaelba distributionofdinophysisspeciesandtheirassociationwithlipophilicphycotoxinsinplanktonfromtheargentinesea
AT tillmannurban distributionofdinophysisspeciesandtheirassociationwithlipophilicphycotoxinsinplanktonfromtheargentinesea
AT cembellaallan distributionofdinophysisspeciesandtheirassociationwithlipophilicphycotoxinsinplanktonfromtheargentinesea
AT krockbernd distributionofdinophysisspeciesandtheirassociationwithlipophilicphycotoxinsinplanktonfromtheargentinesea
bdutipo_str Repositorios
_version_ 1764820452395450369

Ejemplares similares