Dinoflagellates producers of yessotoxins in the Argentine Sea

Yessotoxins (YTXs) consist of a recently described group of phycotoxins associated with shellfish toxicity and with cardiotoxicity in laboratory rodents. Until now there are only three dinoflagellate species considered as YTXs producers: Protoceratium reticulatum, Gonyaulax spinifera and Lingulodini...

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Autores principales: Fabro, Elena, Krock, Bernd, Almandoz, Gastón O.
Formato: Artículo revista
Lenguaje:Español
Publicado: Sociedad Argentina de Botánica 2018
Materias:
Protoceratium reticulatum
Gonyaulax spinifera
yessotoxinas
Mar Argentino.
yessotoxins
Argentine Sea.
Acceso en línea:https://revistas.unc.edu.ar/index.php/BSAB/article/view/21978
Aporte de:
Boletín de la Sociedad Argentina de Botánica de Universidad Nacional de Córdoba
id I10-R325-article-21978
record_format ojs
spelling I10-R325-article-219782019-12-14T13:46:00Z Dinoflagellates producers of yessotoxins in the Argentine Sea Dinoflagelados productores de yessotoxinas en el Mar argentino Fabro, Elena Krock, Bernd Almandoz, Gastón O. Protoceratium reticulatum Gonyaulax spinifera yessotoxinas Mar Argentino. Protoceratium reticulatum Gonyaulax spinifera yessotoxins Argentine Sea. Yessotoxins (YTXs) consist of a recently described group of phycotoxins associated with shellfish toxicity and with cardiotoxicity in laboratory rodents. Until now there are only three dinoflagellate species considered as YTXs producers: Protoceratium reticulatum, Gonyaulax spinifera and Lingulodinium polyedra. In this study the presence of YTX and its potential producers in the Argentine Sea was analyzed by four oceanographic expeditions carried out between 38 and 55ºS and during different seasons. Toxin detection was performed by application of liquid chromatography coupled to tandem mass spectrometry. Morphological analysis included optical and scanning electron microscopy. Two YTXs potential producers were found: Protoceratium reticulatum and Gonyaulax spinifera, showing highest concentrations of 660 and 140 cell L-1 respectively, during autumn and spring. YTX were also detected during autumn and spring in samples from San Jorge Gulf and slope waters and were associated with the presence of P. reticulatum, showing toxin cell quotas of 2.2 and 12.5 pg YTX cell-1. The data obtained suggest that P. reticulatum is the main YTXs producer in the Argentine Sea, while G. spinifera represents a potential producer in the region which did not show a clear association with YTX detection. Las yessotoxinas (YTXs) son un grupo de ficotoxinas descrito recientemente, asociado a toxicidad en moluscos y a cardiotoxicidad en ratones de laboratorio. Hasta el momento se conocen tres especies de dinoflagelados productoras de YTXs a nivel mundial: Protoceratium reticulatum, Gonyaulax spinifera y Lingulodinium polyedra. En este estudio se analizó la presencia de YTXs y de sus potenciales productores en cuatro campañas oceanográficas realizadas en diferentes estaciones del año entre los 38 y 55ºS. La detección de toxinas se realizó mediante cromatografía líquida de alta eficiencia acoplada con espectrometría de masas en tándem. Los análisis morfológicos incluyeron observaciones mediante microscopía óptica y electrónica de barrido. Se encontraron dos potenciales productores de YTXs, Protoceratium reticulatum y Gonyaulax spinifera, presentando densidades máximas de 660 y 140 cél. L-1 respectivamente durante las campañas de otoño y primavera, en las cuales se detectó YTX en muestras del Golfo San Jorge y del talud. Los datos obtenidos sugieren que la especie P. reticulatum es la principal productora de YTXs en el Mar Argentino presentando cuotas celulares entre 2,2 y 12,5 pg YTX cél.-1, mientras que G. spinifera representa un productor potencial en la región que no ha mostrado una asociación clara con la detección de YTX. Sociedad Argentina de Botánica 2018-12-10 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Artículo original application/pdf https://revistas.unc.edu.ar/index.php/BSAB/article/view/21978 10.31055/1851.2372.v53.n4.21978 Boletín de la Sociedad Argentina de Botánica (Journal of the Argentine Botanical Society; Vol. 53 No. 4 (2018): December; 551-566 Boletín de la Sociedad Argentina de Botánica; Vol. 53 Núm. 4 (2018): Diciembre; 551-566 Boletín de la Sociedad Argentina de Botánica; v. 53 n. 4 (2018): Diciembre; 551-566 1851-2372 0373-580X 10.31055/1851.2372.v53.n4 spa https://revistas.unc.edu.ar/index.php/BSAB/article/view/21978/21606 Derechos de autor 2018 Boletín de la Sociedad Argentina de Botánica
institution Universidad Nacional de Córdoba
institution_str I-10
repository_str R-325
container_title_str Boletín de la Sociedad Argentina de Botánica
language Español
format Artículo revista
topic Protoceratium reticulatum
Gonyaulax spinifera
yessotoxinas
Mar Argentino.
Protoceratium reticulatum
Gonyaulax spinifera
yessotoxins
Argentine Sea.
spellingShingle Protoceratium reticulatum
Gonyaulax spinifera
yessotoxinas
Mar Argentino.
Protoceratium reticulatum
Gonyaulax spinifera
yessotoxins
Argentine Sea.
Fabro, Elena
Krock, Bernd
Almandoz, Gastón O.
Dinoflagellates producers of yessotoxins in the Argentine Sea
topic_facet Protoceratium reticulatum
Gonyaulax spinifera
yessotoxinas
Mar Argentino.
Protoceratium reticulatum
Gonyaulax spinifera
yessotoxins
Argentine Sea.
author Fabro, Elena
Krock, Bernd
Almandoz, Gastón O.
author_facet Fabro, Elena
Krock, Bernd
Almandoz, Gastón O.
author_sort Fabro, Elena
title Dinoflagellates producers of yessotoxins in the Argentine Sea
title_short Dinoflagellates producers of yessotoxins in the Argentine Sea
title_full Dinoflagellates producers of yessotoxins in the Argentine Sea
title_fullStr Dinoflagellates producers of yessotoxins in the Argentine Sea
title_full_unstemmed Dinoflagellates producers of yessotoxins in the Argentine Sea
title_sort dinoflagellates producers of yessotoxins in the argentine sea
description Yessotoxins (YTXs) consist of a recently described group of phycotoxins associated with shellfish toxicity and with cardiotoxicity in laboratory rodents. Until now there are only three dinoflagellate species considered as YTXs producers: Protoceratium reticulatum, Gonyaulax spinifera and Lingulodinium polyedra. In this study the presence of YTX and its potential producers in the Argentine Sea was analyzed by four oceanographic expeditions carried out between 38 and 55ºS and during different seasons. Toxin detection was performed by application of liquid chromatography coupled to tandem mass spectrometry. Morphological analysis included optical and scanning electron microscopy. Two YTXs potential producers were found: Protoceratium reticulatum and Gonyaulax spinifera, showing highest concentrations of 660 and 140 cell L-1 respectively, during autumn and spring. YTX were also detected during autumn and spring in samples from San Jorge Gulf and slope waters and were associated with the presence of P. reticulatum, showing toxin cell quotas of 2.2 and 12.5 pg YTX cell-1. The data obtained suggest that P. reticulatum is the main YTXs producer in the Argentine Sea, while G. spinifera represents a potential producer in the region which did not show a clear association with YTX detection.
publisher Sociedad Argentina de Botánica
publishDate 2018
url https://revistas.unc.edu.ar/index.php/BSAB/article/view/21978
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AT krockbernd dinoflageladosproductoresdeyessotoxinasenelmarargentino
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first_indexed 2024-09-03T22:49:12Z
last_indexed 2024-09-03T22:49:12Z
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