Cell size-based, passive selection of the blue diatom Haslea ostrearia by the oyster Crassostrea gigas
International audience Pre-ingestive selection has been identified as a feeding mechanism of oysters that may influence their uptake of particles and microalgal cells. Oysters can feed specifically on the pennate diatom Haslea ostrearia, which produces the blue pigment marennine that is responsible...
Published in: | Journal of Molluscan Studies |
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ftunimainelemans:oai:HAL:hal-03941995v1 2024-05-19T07:39:16+00:00 Cell size-based, passive selection of the blue diatom Haslea ostrearia by the oyster Crassostrea gigas Prasetiya, Fiddy Decottignies, Priscilla Barillé, Laurent Gastineau, Romain Jacquette, Boris Figiel, Amandine Morançais, Michèle Tremblay, Réjean Mouget, Jean-Luc Cognie, Bruno Mer, molécules et santé EA 2160 (MMS) Le Mans Université (UM)-Université de Nantes - UFR des Sciences et des Techniques (UN UFR ST) Université de Nantes (UN)-Université de Nantes (UN)-Université de Nantes - UFR des Sciences Pharmaceutiques et Biologiques Université de Nantes (UN)-Université de Nantes (UN) Université du Québec à Rimouski (UQAR) 2017-05-01 https://nantes-universite.hal.science/hal-03941995 https://nantes-universite.hal.science/hal-03941995/document https://nantes-universite.hal.science/hal-03941995/file/Passive_Selection_Prasetiya_et_al.pdf https://doi.org/10.1093/mollus/eyx012 en eng HAL CCSD Oxford University Press (OUP) info:eu-repo/semantics/altIdentifier/doi/10.1093/mollus/eyx012 hal-03941995 https://nantes-universite.hal.science/hal-03941995 https://nantes-universite.hal.science/hal-03941995/document https://nantes-universite.hal.science/hal-03941995/file/Passive_Selection_Prasetiya_et_al.pdf doi:10.1093/mollus/eyx012 info:eu-repo/semantics/OpenAccess ISSN: 0260-1230 EISSN: 1464-3766 Journal of Molluscan Studies https://nantes-universite.hal.science/hal-03941995 Journal of Molluscan Studies, 2017, 83 (2), pp.145-152. ⟨10.1093/mollus/eyx012⟩ [SDV]Life Sciences [q-bio] info:eu-repo/semantics/article Journal articles 2017 ftunimainelemans https://doi.org/10.1093/mollus/eyx012 2024-05-01T00:55:37Z International audience Pre-ingestive selection has been identified as a feeding mechanism of oysters that may influence their uptake of particles and microalgal cells. Oysters can feed specifically on the pennate diatom Haslea ostrearia, which produces the blue pigment marennine that is responsible for the greening of oysters. Because the size of particles or cells plays a significant role in the selection process, and given that diatoms experience a decrease in size as a consequence of vegetative reproduction, H. ostrearia consumption and marennine uptake might be influenced by pre-ingestive selection. We examined the role of H. ostrearia cell size in the selective feeding of Crassostrea gigas. Individual flow-through chambers were used to deliver mixtures of H. ostrearia of varying cell length to oysters. Inflow, outflow and pseudofaecal samples were collected from chambers during oyster feeding. Video-endoscopy was used to sample material in the dorsal and ventral particle tracts. Diatom cells counts showed that pseudofaeces contained on average larger cells than the ambient medium. However, proportions of the different populations of H. ostrearia in pseudofaeces were identical to those in the ventral tracts, indicating that no selection was performed by the labial palps. Video-endoscopy, plus imaging by scanning electron microscopy, of gills and labial palps revealed that only those larger H. ostrearia that were orientated dorsoventrally could enter the principal filaments (pfs) and then access the dorsal acceptance tract. These results show that for particles like Haslea cells with only one axis exceeding the width of the pfs, the selection on the oyster gills is passive and based on cell size. Article in Journal/Newspaper Crassostrea gigas Le Mans Université: Archives Ouvertes (HAL) Journal of Molluscan Studies 83 2 145 152 |
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Open Polar |
collection |
Le Mans Université: Archives Ouvertes (HAL) |
op_collection_id |
ftunimainelemans |
language |
English |
topic |
[SDV]Life Sciences [q-bio] |
spellingShingle |
[SDV]Life Sciences [q-bio] Prasetiya, Fiddy Decottignies, Priscilla Barillé, Laurent Gastineau, Romain Jacquette, Boris Figiel, Amandine Morançais, Michèle Tremblay, Réjean Mouget, Jean-Luc Cognie, Bruno Cell size-based, passive selection of the blue diatom Haslea ostrearia by the oyster Crassostrea gigas |
topic_facet |
[SDV]Life Sciences [q-bio] |
description |
International audience Pre-ingestive selection has been identified as a feeding mechanism of oysters that may influence their uptake of particles and microalgal cells. Oysters can feed specifically on the pennate diatom Haslea ostrearia, which produces the blue pigment marennine that is responsible for the greening of oysters. Because the size of particles or cells plays a significant role in the selection process, and given that diatoms experience a decrease in size as a consequence of vegetative reproduction, H. ostrearia consumption and marennine uptake might be influenced by pre-ingestive selection. We examined the role of H. ostrearia cell size in the selective feeding of Crassostrea gigas. Individual flow-through chambers were used to deliver mixtures of H. ostrearia of varying cell length to oysters. Inflow, outflow and pseudofaecal samples were collected from chambers during oyster feeding. Video-endoscopy was used to sample material in the dorsal and ventral particle tracts. Diatom cells counts showed that pseudofaeces contained on average larger cells than the ambient medium. However, proportions of the different populations of H. ostrearia in pseudofaeces were identical to those in the ventral tracts, indicating that no selection was performed by the labial palps. Video-endoscopy, plus imaging by scanning electron microscopy, of gills and labial palps revealed that only those larger H. ostrearia that were orientated dorsoventrally could enter the principal filaments (pfs) and then access the dorsal acceptance tract. These results show that for particles like Haslea cells with only one axis exceeding the width of the pfs, the selection on the oyster gills is passive and based on cell size. |
author2 |
Mer, molécules et santé EA 2160 (MMS) Le Mans Université (UM)-Université de Nantes - UFR des Sciences et des Techniques (UN UFR ST) Université de Nantes (UN)-Université de Nantes (UN)-Université de Nantes - UFR des Sciences Pharmaceutiques et Biologiques Université de Nantes (UN)-Université de Nantes (UN) Université du Québec à Rimouski (UQAR) |
format |
Article in Journal/Newspaper |
author |
Prasetiya, Fiddy Decottignies, Priscilla Barillé, Laurent Gastineau, Romain Jacquette, Boris Figiel, Amandine Morançais, Michèle Tremblay, Réjean Mouget, Jean-Luc Cognie, Bruno |
author_facet |
Prasetiya, Fiddy Decottignies, Priscilla Barillé, Laurent Gastineau, Romain Jacquette, Boris Figiel, Amandine Morançais, Michèle Tremblay, Réjean Mouget, Jean-Luc Cognie, Bruno |
author_sort |
Prasetiya, Fiddy |
title |
Cell size-based, passive selection of the blue diatom Haslea ostrearia by the oyster Crassostrea gigas |
title_short |
Cell size-based, passive selection of the blue diatom Haslea ostrearia by the oyster Crassostrea gigas |
title_full |
Cell size-based, passive selection of the blue diatom Haslea ostrearia by the oyster Crassostrea gigas |
title_fullStr |
Cell size-based, passive selection of the blue diatom Haslea ostrearia by the oyster Crassostrea gigas |
title_full_unstemmed |
Cell size-based, passive selection of the blue diatom Haslea ostrearia by the oyster Crassostrea gigas |
title_sort |
cell size-based, passive selection of the blue diatom haslea ostrearia by the oyster crassostrea gigas |
publisher |
HAL CCSD |
publishDate |
2017 |
url |
https://nantes-universite.hal.science/hal-03941995 https://nantes-universite.hal.science/hal-03941995/document https://nantes-universite.hal.science/hal-03941995/file/Passive_Selection_Prasetiya_et_al.pdf https://doi.org/10.1093/mollus/eyx012 |
genre |
Crassostrea gigas |
genre_facet |
Crassostrea gigas |
op_source |
ISSN: 0260-1230 EISSN: 1464-3766 Journal of Molluscan Studies https://nantes-universite.hal.science/hal-03941995 Journal of Molluscan Studies, 2017, 83 (2), pp.145-152. ⟨10.1093/mollus/eyx012⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1093/mollus/eyx012 hal-03941995 https://nantes-universite.hal.science/hal-03941995 https://nantes-universite.hal.science/hal-03941995/document https://nantes-universite.hal.science/hal-03941995/file/Passive_Selection_Prasetiya_et_al.pdf doi:10.1093/mollus/eyx012 |
op_rights |
info:eu-repo/semantics/OpenAccess |
op_doi |
https://doi.org/10.1093/mollus/eyx012 |
container_title |
Journal of Molluscan Studies |
container_volume |
83 |
container_issue |
2 |
container_start_page |
145 |
op_container_end_page |
152 |
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1799478829884899328 |