Pelagodinium gen. nov and P-beii comb. nov., a Dinoflagellate Symbiont of Planktonic Foraminifera
International audience The taxonomic status of the free-living stage of the dinoflagellate Gymnodinium beii, symbiont of the foraminifer Orbulinauniversa, was reassessed on the basis of detailed morpho-genetic analyses. Electron microscopy observations revealed previously undescribed morphological f...
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Format: | Article in Journal/Newspaper |
Language: | English |
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Online Access: | https://doi.org/10.1016/j.protis.2010.01.002 https://hal.archives-ouvertes.fr/hal-01258255 |
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fttriple:oai:gotriple.eu:10670/1.1mx1rv 2023-05-15T18:00:38+02:00 Pelagodinium gen. nov and P-beii comb. nov., a Dinoflagellate Symbiont of Planktonic Foraminifera Siano, Raffaele Montresor, Marina Probert, Ian Not, Fabrice de Vargas, Colomban Institut Français de Recherche pour l'Exploitation de la Mer (IFREMER) Stazione Zoologica Anton Dohrn (SZN) Evolution des Protistes et Ecosystèmes Pélagiques (EPEP) Adaptation et diversité en milieu marin (AD2M) Station biologique de Roscoff Roscoff (SBR) Université Pierre et Marie Curie - Paris 6 (UPMC)-Centre National de la Recherche Scientifique (CNRS)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS)-Station biologique de Roscoff Roscoff (SBR) Université Pierre et Marie Curie - Paris 6 (UPMC)-Centre National de la Recherche Scientifique (CNRS)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS) Université Pierre et Marie Curie - Paris 6 (UPMC)-Centre National de la Recherche Scientifique (CNRS) Universite Pierre et Marie Curie (UMPC, France) 09036 ANR 05-BDIV-004 BioMarKs SYMFORAD Region Bretagne (France) ASSEMBLE EC 227799 2010-07-01 https://doi.org/10.1016/j.protis.2010.01.002 https://hal.archives-ouvertes.fr/hal-01258255 en eng HAL CCSD Elsevier hal-01258255 doi:10.1016/j.protis.2010.01.002 10670/1.1mx1rv https://hal.archives-ouvertes.fr/hal-01258255 undefined Hyper Article en Ligne - Sciences de l'Homme et de la Société ISSN: 1434-4610 Protist Protist, Elsevier, 2010, 161 (3), pp.385-399. ⟨10.1016/j.protis.2010.01.002⟩ dinoflagellates foraminifera Orbulina universa Pelagodinium Suessiales symbionts envir geo Journal Article https://vocabularies.coar-repositories.org/resource_types/c_6501/ 2010 fttriple https://doi.org/10.1016/j.protis.2010.01.002 2023-01-22T18:44:29Z International audience The taxonomic status of the free-living stage of the dinoflagellate Gymnodinium beii, symbiont of the foraminifer Orbulinauniversa, was reassessed on the basis of detailed morpho-genetic analyses. Electron microscopy observations revealed previously undescribed morphological features of the cell that are important for species recognition. The presence of a single elongated apical vesicle (EAV) ornamented with a row of small knobs, absent in species of the genus Gymnodinium, calls into question the current taxonomic position of the symbiont. The presence of a type E extraplastidial eyespot, the arrangement of the amphiesmal vesicles in series and the absence of trichocysts confirm the affiliation with other symbiotic dinoflagellates and certain genetically related non-symbiotic genera, all belonging to the order Suessiales. The arrangement of the series of vesicles of the analyzed strain is unique within the Suessiales, and the ultrastructure of the pyrenoidis different from other symbiotic dinoflagellates. A large subunit (LSU) rDNA phylogenetic analysis confirmed that the analyzed pelagic symbiont clusters in an independent, well-supported clade within the Suessiales with other sequences of symbiotic dinoflagellates extracted from planktonic foraminifera. Hence a novel genus, Pelagodinium gen. nov., is erected for this pelagic, symbiotic dinoflagellate, and Gymnodinium beii is reclassified as Pelagodinium beii. (C) 2010 Elsevier GmbH. All rights reserved. Article in Journal/Newspaper Planktonic foraminifera Unknown Protist 161 3 385 399 |
institution |
Open Polar |
collection |
Unknown |
op_collection_id |
fttriple |
language |
English |
topic |
dinoflagellates foraminifera Orbulina universa Pelagodinium Suessiales symbionts envir geo |
spellingShingle |
dinoflagellates foraminifera Orbulina universa Pelagodinium Suessiales symbionts envir geo Siano, Raffaele Montresor, Marina Probert, Ian Not, Fabrice de Vargas, Colomban Pelagodinium gen. nov and P-beii comb. nov., a Dinoflagellate Symbiont of Planktonic Foraminifera |
topic_facet |
dinoflagellates foraminifera Orbulina universa Pelagodinium Suessiales symbionts envir geo |
description |
International audience The taxonomic status of the free-living stage of the dinoflagellate Gymnodinium beii, symbiont of the foraminifer Orbulinauniversa, was reassessed on the basis of detailed morpho-genetic analyses. Electron microscopy observations revealed previously undescribed morphological features of the cell that are important for species recognition. The presence of a single elongated apical vesicle (EAV) ornamented with a row of small knobs, absent in species of the genus Gymnodinium, calls into question the current taxonomic position of the symbiont. The presence of a type E extraplastidial eyespot, the arrangement of the amphiesmal vesicles in series and the absence of trichocysts confirm the affiliation with other symbiotic dinoflagellates and certain genetically related non-symbiotic genera, all belonging to the order Suessiales. The arrangement of the series of vesicles of the analyzed strain is unique within the Suessiales, and the ultrastructure of the pyrenoidis different from other symbiotic dinoflagellates. A large subunit (LSU) rDNA phylogenetic analysis confirmed that the analyzed pelagic symbiont clusters in an independent, well-supported clade within the Suessiales with other sequences of symbiotic dinoflagellates extracted from planktonic foraminifera. Hence a novel genus, Pelagodinium gen. nov., is erected for this pelagic, symbiotic dinoflagellate, and Gymnodinium beii is reclassified as Pelagodinium beii. (C) 2010 Elsevier GmbH. All rights reserved. |
author2 |
Institut Français de Recherche pour l'Exploitation de la Mer (IFREMER) Stazione Zoologica Anton Dohrn (SZN) Evolution des Protistes et Ecosystèmes Pélagiques (EPEP) Adaptation et diversité en milieu marin (AD2M) Station biologique de Roscoff Roscoff (SBR) Université Pierre et Marie Curie - Paris 6 (UPMC)-Centre National de la Recherche Scientifique (CNRS)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS)-Station biologique de Roscoff Roscoff (SBR) Université Pierre et Marie Curie - Paris 6 (UPMC)-Centre National de la Recherche Scientifique (CNRS)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS) Université Pierre et Marie Curie - Paris 6 (UPMC)-Centre National de la Recherche Scientifique (CNRS) Universite Pierre et Marie Curie (UMPC, France) 09036 ANR 05-BDIV-004 BioMarKs SYMFORAD Region Bretagne (France) ASSEMBLE EC 227799 |
format |
Article in Journal/Newspaper |
author |
Siano, Raffaele Montresor, Marina Probert, Ian Not, Fabrice de Vargas, Colomban |
author_facet |
Siano, Raffaele Montresor, Marina Probert, Ian Not, Fabrice de Vargas, Colomban |
author_sort |
Siano, Raffaele |
title |
Pelagodinium gen. nov and P-beii comb. nov., a Dinoflagellate Symbiont of Planktonic Foraminifera |
title_short |
Pelagodinium gen. nov and P-beii comb. nov., a Dinoflagellate Symbiont of Planktonic Foraminifera |
title_full |
Pelagodinium gen. nov and P-beii comb. nov., a Dinoflagellate Symbiont of Planktonic Foraminifera |
title_fullStr |
Pelagodinium gen. nov and P-beii comb. nov., a Dinoflagellate Symbiont of Planktonic Foraminifera |
title_full_unstemmed |
Pelagodinium gen. nov and P-beii comb. nov., a Dinoflagellate Symbiont of Planktonic Foraminifera |
title_sort |
pelagodinium gen. nov and p-beii comb. nov., a dinoflagellate symbiont of planktonic foraminifera |
publisher |
HAL CCSD |
publishDate |
2010 |
url |
https://doi.org/10.1016/j.protis.2010.01.002 https://hal.archives-ouvertes.fr/hal-01258255 |
genre |
Planktonic foraminifera |
genre_facet |
Planktonic foraminifera |
op_source |
Hyper Article en Ligne - Sciences de l'Homme et de la Société ISSN: 1434-4610 Protist Protist, Elsevier, 2010, 161 (3), pp.385-399. ⟨10.1016/j.protis.2010.01.002⟩ |
op_relation |
hal-01258255 doi:10.1016/j.protis.2010.01.002 10670/1.1mx1rv https://hal.archives-ouvertes.fr/hal-01258255 |
op_rights |
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op_doi |
https://doi.org/10.1016/j.protis.2010.01.002 |
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Protist |
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161 |
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3 |
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385 |
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399 |
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