Co-occurrence of <i>Dinophysis tripos</i> and pectenotoxins in Argentinean shelf waters

Autores
Fabro Cerreia Fus, Elena Inés; Almandoz, Gastón Osvaldo; Ferrario, Martha Elba; Hoffmeyer, Mónica Susana; Pettigrosso, Rosa E.; Uibrig, Román Armando; Krock, Bernd
Año de publicación
2015
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
The species Dinophysis tripos is a widely distributed marine dinoflagellate associated with diarrheic shellfish poisoning (DSP) events, which has been recently identified as a pectenotoxin (PTX) producer. In two sampling expeditions carried out during austral autumns 2012 and 2013 along the Argentine Sea (≈38–56° S), lipophilic phycotoxins were measured by tandem mass spectrometry coupled to liquid chromatography (LC–MS/MS) in size-fractionated plankton samples together with microscopic analyses of potentially toxic phytoplankton. PTX-2, PTX-11 and PTX-2sa were recurrently detected in the 50–200 μm fractions, in association to D. tripos. PTX-2 was also widely distributed among the 20–50 μm fractions, mostly related to Dinophysis acuminata. Okadaic acid or its analogs were not detected in any sample. This is the first report of D. tripos related to PTX in the Argentine Sea and the first record of PTX-11 and PTX-2sa for this area. The morphological variability of D. tripos, including the presence of intermediate, small and dimorphic cells, is described. Also, the micro- and mesoplanktonic potential grazers of Dinophysis spp. were explored.
Facultad de Ciencias Naturales y Museo
Materia
Ciencias Naturales
Lipophilic toxins
LC-MS/MS
Dinophysis tripos
Morphological variability
Zooplankton bioaccumulation
South Atlantic
Nivel de accesibilidad
acceso abierto
Condiciones de uso
http://creativecommons.org/licenses/by-nc-sa/4.0/
Repositorio
SEDICI (UNLP)
Institución
Universidad Nacional de La Plata
OAI Identificador
oai:sedici.unlp.edu.ar:10915/101537
Acceder
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oai_identifier_str oai:sedici.unlp.edu.ar:10915/101537
network_acronym_str SEDICI
repository_id_str 1329
network_name_str SEDICI (UNLP)
spelling Co-occurrence of <i>Dinophysis tripos</i> and pectenotoxins in Argentinean shelf watersFabro Cerreia Fus, Elena InésAlmandoz, Gastón OsvaldoFerrario, Martha ElbaHoffmeyer, Mónica SusanaPettigrosso, Rosa E.Uibrig, Román ArmandoKrock, BerndCiencias NaturalesLipophilic toxinsLC-MS/MSDinophysis triposMorphological variabilityZooplankton bioaccumulationSouth AtlanticThe species Dinophysis tripos is a widely distributed marine dinoflagellate associated with diarrheic shellfish poisoning (DSP) events, which has been recently identified as a pectenotoxin (PTX) producer. In two sampling expeditions carried out during austral autumns 2012 and 2013 along the Argentine Sea (≈38–56° S), lipophilic phycotoxins were measured by tandem mass spectrometry coupled to liquid chromatography (LC–MS/MS) in size-fractionated plankton samples together with microscopic analyses of potentially toxic phytoplankton. PTX-2, PTX-11 and PTX-2sa were recurrently detected in the 50–200 μm fractions, in association to D. tripos. PTX-2 was also widely distributed among the 20–50 μm fractions, mostly related to Dinophysis acuminata. Okadaic acid or its analogs were not detected in any sample. This is the first report of D. tripos related to PTX in the Argentine Sea and the first record of PTX-11 and PTX-2sa for this area. The morphological variability of D. tripos, including the presence of intermediate, small and dimorphic cells, is described. Also, the micro- and mesoplanktonic potential grazers of Dinophysis spp. were explored.Facultad de Ciencias Naturales y Museo2015-02info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionArticulohttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdf25-33http://sedici.unlp.edu.ar/handle/10915/101537enginfo:eu-repo/semantics/altIdentifier/url/https://ri.conicet.gov.ar/11336/12515info:eu-repo/semantics/altIdentifier/issn/1568-9883info:eu-repo/semantics/altIdentifier/doi/10.1016/j.hal.2014.12.005info:eu-repo/semantics/altIdentifier/hdl/11336/12515info:eu-repo/semantics/openAccesshttp://creativecommons.org/licenses/by-nc-sa/4.0/Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)reponame:SEDICI (UNLP)instname:Universidad Nacional de La Platainstacron:UNLP2025-09-29T11:21:01Zoai:sedici.unlp.edu.ar:10915/101537Institucionalhttp://sedici.unlp.edu.ar/Universidad públicaNo correspondehttp://sedici.unlp.edu.ar/oai/snrdalira@sedici.unlp.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:13292025-09-29 11:21:01.719SEDICI (UNLP) - Universidad Nacional de La Platafalse
dc.title.none.fl_str_mv Co-occurrence of <i>Dinophysis tripos</i> and pectenotoxins in Argentinean shelf waters
title Co-occurrence of <i>Dinophysis tripos</i> and pectenotoxins in Argentinean shelf waters
spellingShingle Co-occurrence of <i>Dinophysis tripos</i> and pectenotoxins in Argentinean shelf waters
Fabro Cerreia Fus, Elena Inés
Ciencias Naturales
Lipophilic toxins
LC-MS/MS
Dinophysis tripos
Morphological variability
Zooplankton bioaccumulation
South Atlantic
title_short Co-occurrence of <i>Dinophysis tripos</i> and pectenotoxins in Argentinean shelf waters
title_full Co-occurrence of <i>Dinophysis tripos</i> and pectenotoxins in Argentinean shelf waters
title_fullStr Co-occurrence of <i>Dinophysis tripos</i> and pectenotoxins in Argentinean shelf waters
title_full_unstemmed Co-occurrence of <i>Dinophysis tripos</i> and pectenotoxins in Argentinean shelf waters
title_sort Co-occurrence of <i>Dinophysis tripos</i> and pectenotoxins in Argentinean shelf waters
dc.creator.none.fl_str_mv Fabro Cerreia Fus, Elena Inés
Almandoz, Gastón Osvaldo
Ferrario, Martha Elba
Hoffmeyer, Mónica Susana
Pettigrosso, Rosa E.
Uibrig, Román Armando
Krock, Bernd
author Fabro Cerreia Fus, Elena Inés
author_facet Fabro Cerreia Fus, Elena Inés
Almandoz, Gastón Osvaldo
Ferrario, Martha Elba
Hoffmeyer, Mónica Susana
Pettigrosso, Rosa E.
Uibrig, Román Armando
Krock, Bernd
author_role author
author2 Almandoz, Gastón Osvaldo
Ferrario, Martha Elba
Hoffmeyer, Mónica Susana
Pettigrosso, Rosa E.
Uibrig, Román Armando
Krock, Bernd
author2_role author
author
author
author
author
author
dc.subject.none.fl_str_mv Ciencias Naturales
Lipophilic toxins
LC-MS/MS
Dinophysis tripos
Morphological variability
Zooplankton bioaccumulation
South Atlantic
topic Ciencias Naturales
Lipophilic toxins
LC-MS/MS
Dinophysis tripos
Morphological variability
Zooplankton bioaccumulation
South Atlantic
dc.description.none.fl_txt_mv The species Dinophysis tripos is a widely distributed marine dinoflagellate associated with diarrheic shellfish poisoning (DSP) events, which has been recently identified as a pectenotoxin (PTX) producer. In two sampling expeditions carried out during austral autumns 2012 and 2013 along the Argentine Sea (≈38–56° S), lipophilic phycotoxins were measured by tandem mass spectrometry coupled to liquid chromatography (LC–MS/MS) in size-fractionated plankton samples together with microscopic analyses of potentially toxic phytoplankton. PTX-2, PTX-11 and PTX-2sa were recurrently detected in the 50–200 μm fractions, in association to D. tripos. PTX-2 was also widely distributed among the 20–50 μm fractions, mostly related to Dinophysis acuminata. Okadaic acid or its analogs were not detected in any sample. This is the first report of D. tripos related to PTX in the Argentine Sea and the first record of PTX-11 and PTX-2sa for this area. The morphological variability of D. tripos, including the presence of intermediate, small and dimorphic cells, is described. Also, the micro- and mesoplanktonic potential grazers of Dinophysis spp. were explored.
Facultad de Ciencias Naturales y Museo
description The species Dinophysis tripos is a widely distributed marine dinoflagellate associated with diarrheic shellfish poisoning (DSP) events, which has been recently identified as a pectenotoxin (PTX) producer. In two sampling expeditions carried out during austral autumns 2012 and 2013 along the Argentine Sea (≈38–56° S), lipophilic phycotoxins were measured by tandem mass spectrometry coupled to liquid chromatography (LC–MS/MS) in size-fractionated plankton samples together with microscopic analyses of potentially toxic phytoplankton. PTX-2, PTX-11 and PTX-2sa were recurrently detected in the 50–200 μm fractions, in association to D. tripos. PTX-2 was also widely distributed among the 20–50 μm fractions, mostly related to Dinophysis acuminata. Okadaic acid or its analogs were not detected in any sample. This is the first report of D. tripos related to PTX in the Argentine Sea and the first record of PTX-11 and PTX-2sa for this area. The morphological variability of D. tripos, including the presence of intermediate, small and dimorphic cells, is described. Also, the micro- and mesoplanktonic potential grazers of Dinophysis spp. were explored.
publishDate 2015
dc.date.none.fl_str_mv 2015-02
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Articulo
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://sedici.unlp.edu.ar/handle/10915/101537
url http://sedici.unlp.edu.ar/handle/10915/101537
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/https://ri.conicet.gov.ar/11336/12515
info:eu-repo/semantics/altIdentifier/issn/1568-9883
info:eu-repo/semantics/altIdentifier/doi/10.1016/j.hal.2014.12.005
info:eu-repo/semantics/altIdentifier/hdl/11336/12515
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
http://creativecommons.org/licenses/by-nc-sa/4.0/
Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)
eu_rights_str_mv openAccess
rights_invalid_str_mv http://creativecommons.org/licenses/by-nc-sa/4.0/
Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)
dc.format.none.fl_str_mv application/pdf
25-33
dc.source.none.fl_str_mv reponame:SEDICI (UNLP)
instname:Universidad Nacional de La Plata
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reponame_str SEDICI (UNLP)
collection SEDICI (UNLP)
instname_str Universidad Nacional de La Plata
instacron_str UNLP
institution UNLP
repository.name.fl_str_mv SEDICI (UNLP) - Universidad Nacional de La Plata
repository.mail.fl_str_mv alira@sedici.unlp.edu.ar
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