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...
Published in: | Protist |
---|---|
Main Authors: | , , , , |
Other Authors: | , , , , , , , , , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
HAL CCSD
2010
|
Subjects: | |
Online Access: | https://hal.science/hal-01258255 https://doi.org/10.1016/j.protis.2010.01.002 |
id |
ftsorbonneuniv:oai:HAL:hal-01258255v1 |
---|---|
record_format |
openpolar |
spelling |
ftsorbonneuniv:oai:HAL:hal-01258255v1 2024-02-11T10:08:03+01:00 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 https://hal.science/hal-01258255 https://doi.org/10.1016/j.protis.2010.01.002 en eng HAL CCSD Elsevier info:eu-repo/semantics/altIdentifier/doi/10.1016/j.protis.2010.01.002 hal-01258255 https://hal.science/hal-01258255 doi:10.1016/j.protis.2010.01.002 ISSN: 1434-4610 Protist https://hal.science/hal-01258255 Protist, 2010, 161 (3), pp.385-399. ⟨10.1016/j.protis.2010.01.002⟩ dinoflagellates foraminifera Orbulina universa Pelagodinium Suessiales symbionts [SDV]Life Sciences [q-bio] [SDE]Environmental Sciences info:eu-repo/semantics/article Journal articles 2010 ftsorbonneuniv https://doi.org/10.1016/j.protis.2010.01.002 2024-01-23T23:57:20Z 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 HAL Sorbonne Université Protist 161 3 385 399 |
institution |
Open Polar |
collection |
HAL Sorbonne Université |
op_collection_id |
ftsorbonneuniv |
language |
English |
topic |
dinoflagellates foraminifera Orbulina universa Pelagodinium Suessiales symbionts [SDV]Life Sciences [q-bio] [SDE]Environmental Sciences |
spellingShingle |
dinoflagellates foraminifera Orbulina universa Pelagodinium Suessiales symbionts [SDV]Life Sciences [q-bio] [SDE]Environmental Sciences 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 [SDV]Life Sciences [q-bio] [SDE]Environmental Sciences |
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://hal.science/hal-01258255 https://doi.org/10.1016/j.protis.2010.01.002 |
genre |
Planktonic foraminifera |
genre_facet |
Planktonic foraminifera |
op_source |
ISSN: 1434-4610 Protist https://hal.science/hal-01258255 Protist, 2010, 161 (3), pp.385-399. ⟨10.1016/j.protis.2010.01.002⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1016/j.protis.2010.01.002 hal-01258255 https://hal.science/hal-01258255 doi:10.1016/j.protis.2010.01.002 |
op_doi |
https://doi.org/10.1016/j.protis.2010.01.002 |
container_title |
Protist |
container_volume |
161 |
container_issue |
3 |
container_start_page |
385 |
op_container_end_page |
399 |
_version_ |
1790606963289096192 |