Modulation of dimethylsulfoniopropionate (DMSP) concentration in an Alexandrium minutum (Dinophyceae) culture by small-scale turbulence: A link to toxin production?

8 pages, 3 figures

Detalles Bibliográficos
Autores: Berdalet, Elisa, Llaveria, Gisela, Simó, Rafel
Tipo de recurso: artículo
Fecha de publicación:2011
País:España
Institución:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/46038
Acceso en línea:http://hdl.handle.net/10261/46038
Access Level:acceso abierto
Palabra clave:Alexandrium minutum
Dinoflagellates
DMSP
Paralytic shellfish toxins
Small-scale turbulence
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spelling Modulation of dimethylsulfoniopropionate (DMSP) concentration in an Alexandrium minutum (Dinophyceae) culture by small-scale turbulence: A link to toxin production?Berdalet, ElisaLlaveria, GiselaSimó, RafelAlexandrium minutumDinoflagellatesDMSPParalytic shellfish toxinsSmall-scale turbulence8 pages, 3 figuresSome marine dinoflagellates produce important amounts of dimethylsulfoniopropionate (DMSP), a common compatible solute, and its cleavage product dimethylsulfide (DMS), a climatically active trace gas. In the field, dinoflagellate proliferations appear to be favored by calm weather and water column stability; indeed, small-scale turbulence is a physical factor that directly affects ecophysiological aspects of this phytoplankton group, including toxin production. Here we report the effect of experimentally generated turbulence on DMSP production by a paralytic shellfish poisoning (PSP) toxin producing strain of Alexandrium minutum, a widespread bloomforming dinoflagellate species. With respect to still conditions, the populations exposed to turbulence grew at a slower growth rate and yielded low cell numbers turbulence. Concurrently, the cellular DMSP concentration increased by ca. 20% (from 0.22 ± 0.01 to 0.27 ± 0.03 fmol μm−3 on a cell volume basis) in the shaken cultures. DMSP was preferentially synthesized during the light period in both treatments. During the night, a slowdown of the division process caused DMSP accumulation in the cells exposed to shaking. The study suggests the existence of a tight link between the dynamics of DMSP concentration and other cell processes entrained by circadian rhythms in dinoflagellates. The observed effects of small-scale turbulence on the DMSP dynamics supports the suggested role of this compound as an overflow mechanism in metabolically unbalanced cells. Furthermore, considering all the effects on the physiology of A. minutum exposed to the same experimental setup, we propose a possible link between the DMSP and the PSP metabolismsThis work has been supported by the Spanish funded projects TURECOTOX (CTM2006-13884-C02-00/MAR) and ECOALFACS (CTM2009-09581), that are endorsed to the SCOR/IOC program GEOHAB (Golbal Ecology and Oceanography of Harmful Algal Blooms, www.geohab.info). G. Llaveria held an FPU fellowship from the Spanish Ministry of Science and Education. We appreciate the technical support kindly provided by Martí GalíPeer reviewedElsevierMinisterio de Educación y Ciencia (España)201220122011info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501http://hdl.handle.net/10261/46038reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)Ingléshttps://doi.org/10.1016/j.hal.2011.08.003info:eu-repo/semantics/openAccessoai:digital.csic.es:10261/460382026-05-22T06:33:51Z
dc.title.none.fl_str_mv Modulation of dimethylsulfoniopropionate (DMSP) concentration in an Alexandrium minutum (Dinophyceae) culture by small-scale turbulence: A link to toxin production?
title Modulation of dimethylsulfoniopropionate (DMSP) concentration in an Alexandrium minutum (Dinophyceae) culture by small-scale turbulence: A link to toxin production?
spellingShingle Modulation of dimethylsulfoniopropionate (DMSP) concentration in an Alexandrium minutum (Dinophyceae) culture by small-scale turbulence: A link to toxin production?
Berdalet, Elisa
Alexandrium minutum
Dinoflagellates
DMSP
Paralytic shellfish toxins
Small-scale turbulence
title_short Modulation of dimethylsulfoniopropionate (DMSP) concentration in an Alexandrium minutum (Dinophyceae) culture by small-scale turbulence: A link to toxin production?
title_full Modulation of dimethylsulfoniopropionate (DMSP) concentration in an Alexandrium minutum (Dinophyceae) culture by small-scale turbulence: A link to toxin production?
title_fullStr Modulation of dimethylsulfoniopropionate (DMSP) concentration in an Alexandrium minutum (Dinophyceae) culture by small-scale turbulence: A link to toxin production?
title_full_unstemmed Modulation of dimethylsulfoniopropionate (DMSP) concentration in an Alexandrium minutum (Dinophyceae) culture by small-scale turbulence: A link to toxin production?
title_sort Modulation of dimethylsulfoniopropionate (DMSP) concentration in an Alexandrium minutum (Dinophyceae) culture by small-scale turbulence: A link to toxin production?
dc.creator.none.fl_str_mv Berdalet, Elisa
Llaveria, Gisela
Simó, Rafel
author Berdalet, Elisa
author_facet Berdalet, Elisa
Llaveria, Gisela
Simó, Rafel
author_role author
author2 Llaveria, Gisela
Simó, Rafel
author2_role author
author
dc.contributor.none.fl_str_mv Ministerio de Educación y Ciencia (España)
dc.subject.none.fl_str_mv Alexandrium minutum
Dinoflagellates
DMSP
Paralytic shellfish toxins
Small-scale turbulence
topic Alexandrium minutum
Dinoflagellates
DMSP
Paralytic shellfish toxins
Small-scale turbulence
description 8 pages, 3 figures
publishDate 2011
dc.date.none.fl_str_mv 2011
2012
2012
dc.type.none.fl_str_mv info:eu-repo/semantics/article
http://purl.org/coar/resource_type/c_6501
format article
dc.identifier.none.fl_str_mv http://hdl.handle.net/10261/46038
url http://hdl.handle.net/10261/46038
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv https://doi.org/10.1016/j.hal.2011.08.003
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv Elsevier
publisher.none.fl_str_mv Elsevier
dc.source.none.fl_str_mv reponame:DIGITAL.CSIC. Repositorio Institucional del CSIC
instname:Consejo Superior de Investigaciones Científicas (CSIC)
instname_str Consejo Superior de Investigaciones Científicas (CSIC)
reponame_str DIGITAL.CSIC. Repositorio Institucional del CSIC
collection DIGITAL.CSIC. Repositorio Institucional del CSIC
repository.name.fl_str_mv
repository.mail.fl_str_mv
_version_ 1869403174429786112
score 15,81155

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