Diversity of cultured photosynthetic flagellates in the northeast Pacific and Arctic Oceans in summer
International audience During the MALINA cruise (summer 2009), an extensive effort was undertaken to isolate phytoplankton strains from the northeast (NE) Pacific Ocean, the Bering Strait, the Chukchi Sea, and the Beaufort Sea. In order to characterise the main photosynthetic microorganisms occurrin...
Published in: | Biogeosciences |
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Main Authors: | , , , , , , , |
Other Authors: | , , , , , , , , , , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
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HAL CCSD
2012
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Online Access: | https://hal.archives-ouvertes.fr/hal-01253998 https://hal.archives-ouvertes.fr/hal-01253998/document https://hal.archives-ouvertes.fr/hal-01253998/file/bg-9-4553-2012.pdf https://doi.org/10.5194/bg-9-4553-2012 |
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Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe) |
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ftccsdartic |
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English |
topic |
[SDV]Life Sciences [q-bio] [SDE]Environmental Sciences |
spellingShingle |
[SDV]Life Sciences [q-bio] [SDE]Environmental Sciences Balzano, Sergio Gourvil, Priscillia Siano, R. Chanoine, M. Marie, Dominique Lessard, S. Sarno, D. Vaulot, Daniel Diversity of cultured photosynthetic flagellates in the northeast Pacific and Arctic Oceans in summer |
topic_facet |
[SDV]Life Sciences [q-bio] [SDE]Environmental Sciences |
description |
International audience During the MALINA cruise (summer 2009), an extensive effort was undertaken to isolate phytoplankton strains from the northeast (NE) Pacific Ocean, the Bering Strait, the Chukchi Sea, and the Beaufort Sea. In order to characterise the main photosynthetic microorganisms occurring in the Arctic during the summer season, strains were isolated by flow cytometry sorting (FCS) and single cell pipetting before or after phytoplankton enrichment of seawater samples. Strains were isolated both onboard and back in the laboratory and cultured at 4 degrees C under light/dark conditions. Overall, we isolated and characterised by light microscopy and 18 S rRNA gene sequencing 104 strains of photosynthetic flagellates which grouped into 21 genotypes (defined by 99.5% 18 S rRNA gene sequence similarity), mainly affiliated to Chlorophyta and Heterokontophyta. The taxon most frequently isolated was an Arctic ecotype of the green algal genus Micromonas (Arctic Micromonas), which was nearly the only phytoplankter recovered within the picoplankton (< 2 mu m) size range. Strains of Arctic Micromonas as well as other strains from the same class (Mamiellophyceae) were identified in further detail by sequencing the internal transcribed spacer (ITS) region of the rRNA operon. The MALINA Micromonas strains share identical 18 S rRNA and ITS sequences suggesting high genetic homogeneity within Arctic Micromonas. Three other Mamiellophyceae strains likely belong to a new genus. Other green algae from the genera Nephroselmis, Chlamydomonas, and Pyramimonas were also isolated, whereas Heterokontophyta included some unidentified Pelagophyceae, Dictyochophyceae (Pedinellales), and Chrysophyceae (Dinobryon faculiferum). Moreover, we isolated some Cryptophyceae (Rhodomonas sp.) as well as a few Prymnesiophyceae and dinoflagellates. We identified the dinoflagellate Woloszynskia cincta by scanning electron microscopy (SEM) and 28 S rRNA gene sequencing. Our morphological analyses show that this species possess the ... |
author2 |
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) Dynamiques de l'Environnement Côtier (DYNECO) Institut Français de Recherche pour l'Exploitation de la Mer (IFREMER) Diversité et Interactions au sein du Plancton Océanique (DIPO) 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) Institut des Sciences de la MER de Rimouski (ISMER) Université du Québec à Rimouski (UQAR) Stazione Zoologica Anton Dohrn (SZN) JST-CNRS ``Phytometagene'' ASSEMBLE EU FP7 MACUMBA EU FP7 CPER Souchotheque de Bretagne ANR MALINA ANR-08-BLAN-0308 |
format |
Article in Journal/Newspaper |
author |
Balzano, Sergio Gourvil, Priscillia Siano, R. Chanoine, M. Marie, Dominique Lessard, S. Sarno, D. Vaulot, Daniel |
author_facet |
Balzano, Sergio Gourvil, Priscillia Siano, R. Chanoine, M. Marie, Dominique Lessard, S. Sarno, D. Vaulot, Daniel |
author_sort |
Balzano, Sergio |
title |
Diversity of cultured photosynthetic flagellates in the northeast Pacific and Arctic Oceans in summer |
title_short |
Diversity of cultured photosynthetic flagellates in the northeast Pacific and Arctic Oceans in summer |
title_full |
Diversity of cultured photosynthetic flagellates in the northeast Pacific and Arctic Oceans in summer |
title_fullStr |
Diversity of cultured photosynthetic flagellates in the northeast Pacific and Arctic Oceans in summer |
title_full_unstemmed |
Diversity of cultured photosynthetic flagellates in the northeast Pacific and Arctic Oceans in summer |
title_sort |
diversity of cultured photosynthetic flagellates in the northeast pacific and arctic oceans in summer |
publisher |
HAL CCSD |
publishDate |
2012 |
url |
https://hal.archives-ouvertes.fr/hal-01253998 https://hal.archives-ouvertes.fr/hal-01253998/document https://hal.archives-ouvertes.fr/hal-01253998/file/bg-9-4553-2012.pdf https://doi.org/10.5194/bg-9-4553-2012 |
geographic |
Arctic Bering Strait Chukchi Sea Pacific |
geographic_facet |
Arctic Bering Strait Chukchi Sea Pacific |
genre |
Arctic Beaufort Sea Bering Strait Chukchi Chukchi Sea Phytoplankton |
genre_facet |
Arctic Beaufort Sea Bering Strait Chukchi Chukchi Sea Phytoplankton |
op_source |
ISSN: 1726-4170 EISSN: 1726-4189 Biogeosciences https://hal.archives-ouvertes.fr/hal-01253998 Biogeosciences, European Geosciences Union, 2012, 9 (11), pp.4553-4571. ⟨10.5194/bg-9-4553-2012⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.5194/bg-9-4553-2012 hal-01253998 https://hal.archives-ouvertes.fr/hal-01253998 https://hal.archives-ouvertes.fr/hal-01253998/document https://hal.archives-ouvertes.fr/hal-01253998/file/bg-9-4553-2012.pdf doi:10.5194/bg-9-4553-2012 |
op_rights |
http://creativecommons.org/licenses/by/ info:eu-repo/semantics/OpenAccess |
op_doi |
https://doi.org/10.5194/bg-9-4553-2012 |
container_title |
Biogeosciences |
container_volume |
9 |
container_issue |
11 |
container_start_page |
4553 |
op_container_end_page |
4571 |
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1766314998753132544 |
spelling |
ftccsdartic:oai:HAL:hal-01253998v1 2023-05-15T14:43:20+02:00 Diversity of cultured photosynthetic flagellates in the northeast Pacific and Arctic Oceans in summer Balzano, Sergio Gourvil, Priscillia Siano, R. Chanoine, M. Marie, Dominique Lessard, S. Sarno, D. Vaulot, Daniel 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) Dynamiques de l'Environnement Côtier (DYNECO) Institut Français de Recherche pour l'Exploitation de la Mer (IFREMER) Diversité et Interactions au sein du Plancton Océanique (DIPO) 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) Institut des Sciences de la MER de Rimouski (ISMER) Université du Québec à Rimouski (UQAR) Stazione Zoologica Anton Dohrn (SZN) JST-CNRS ``Phytometagene'' ASSEMBLE EU FP7 MACUMBA EU FP7 CPER Souchotheque de Bretagne ANR MALINA ANR-08-BLAN-0308 2012 https://hal.archives-ouvertes.fr/hal-01253998 https://hal.archives-ouvertes.fr/hal-01253998/document https://hal.archives-ouvertes.fr/hal-01253998/file/bg-9-4553-2012.pdf https://doi.org/10.5194/bg-9-4553-2012 en eng HAL CCSD European Geosciences Union info:eu-repo/semantics/altIdentifier/doi/10.5194/bg-9-4553-2012 hal-01253998 https://hal.archives-ouvertes.fr/hal-01253998 https://hal.archives-ouvertes.fr/hal-01253998/document https://hal.archives-ouvertes.fr/hal-01253998/file/bg-9-4553-2012.pdf doi:10.5194/bg-9-4553-2012 http://creativecommons.org/licenses/by/ info:eu-repo/semantics/OpenAccess ISSN: 1726-4170 EISSN: 1726-4189 Biogeosciences https://hal.archives-ouvertes.fr/hal-01253998 Biogeosciences, European Geosciences Union, 2012, 9 (11), pp.4553-4571. ⟨10.5194/bg-9-4553-2012⟩ [SDV]Life Sciences [q-bio] [SDE]Environmental Sciences info:eu-repo/semantics/article Journal articles 2012 ftccsdartic https://doi.org/10.5194/bg-9-4553-2012 2021-04-03T23:25:42Z International audience During the MALINA cruise (summer 2009), an extensive effort was undertaken to isolate phytoplankton strains from the northeast (NE) Pacific Ocean, the Bering Strait, the Chukchi Sea, and the Beaufort Sea. In order to characterise the main photosynthetic microorganisms occurring in the Arctic during the summer season, strains were isolated by flow cytometry sorting (FCS) and single cell pipetting before or after phytoplankton enrichment of seawater samples. Strains were isolated both onboard and back in the laboratory and cultured at 4 degrees C under light/dark conditions. Overall, we isolated and characterised by light microscopy and 18 S rRNA gene sequencing 104 strains of photosynthetic flagellates which grouped into 21 genotypes (defined by 99.5% 18 S rRNA gene sequence similarity), mainly affiliated to Chlorophyta and Heterokontophyta. The taxon most frequently isolated was an Arctic ecotype of the green algal genus Micromonas (Arctic Micromonas), which was nearly the only phytoplankter recovered within the picoplankton (< 2 mu m) size range. Strains of Arctic Micromonas as well as other strains from the same class (Mamiellophyceae) were identified in further detail by sequencing the internal transcribed spacer (ITS) region of the rRNA operon. The MALINA Micromonas strains share identical 18 S rRNA and ITS sequences suggesting high genetic homogeneity within Arctic Micromonas. Three other Mamiellophyceae strains likely belong to a new genus. Other green algae from the genera Nephroselmis, Chlamydomonas, and Pyramimonas were also isolated, whereas Heterokontophyta included some unidentified Pelagophyceae, Dictyochophyceae (Pedinellales), and Chrysophyceae (Dinobryon faculiferum). Moreover, we isolated some Cryptophyceae (Rhodomonas sp.) as well as a few Prymnesiophyceae and dinoflagellates. We identified the dinoflagellate Woloszynskia cincta by scanning electron microscopy (SEM) and 28 S rRNA gene sequencing. Our morphological analyses show that this species possess the ... Article in Journal/Newspaper Arctic Beaufort Sea Bering Strait Chukchi Chukchi Sea Phytoplankton Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe) Arctic Bering Strait Chukchi Sea Pacific Biogeosciences 9 11 4553 4571 |