Some like it fat: Comparative ultraestructure of the embryo in two demo sponges of the genus Mycale (Order Poecilosclerida): Mycale acerata from Antarctica and Mycale laevis from the Caribbean
During embryogenesis, organisms with lecithotrophic indirect development usually accu- mulate large quantities of energetic reserves in the form of yolk that are necessary for larval survival. Since all sponges have lecithotrophic development, yolk formation is an ineludible step of their embryogene...
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ftubarcepubl:oai:diposit.ub.edu:2445/104309 2024-02-11T09:57:28+01:00 Some like it fat: Comparative ultraestructure of the embryo in two demo sponges of the genus Mycale (Order Poecilosclerida): Mycale acerata from Antarctica and Mycale laevis from the Caribbean Riesgo Gil, Ana Taboada Moreno, Sergi Sánchez Vila, Laura Solà Peracaula, Joan Bertrán, Andrea. Ávila Escartín, Conxita 2015-03-18 18 p. application/pdf http://hdl.handle.net/2445/104309 eng eng Public Library of Science (PLoS) Reproducció del document publicat a: https://doi.org/10.1371/journal.pone.0118805 PLoS One, 2015, vol. 10, num. 3, p. e0118805 Articles publicats en revistes (Biologia Evolutiva, Ecologia i Ciències Ambientals) https://doi.org/10.1371/journal.pone.0118805 1932-6203 http://hdl.handle.net/2445/104309 647850 25785444 cc-by (c) Riesgo Gil, Ana et al., 2015 http://creativecommons.org/licenses/by/3.0/es info:eu-repo/semantics/openAccess Embriologia Esponges Embryology Sponges info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion 2015 ftubarcepubl https://doi.org/10.1371/journal.pone.0118805 2024-01-24T01:00:36Z During embryogenesis, organisms with lecithotrophic indirect development usually accu- mulate large quantities of energetic reserves in the form of yolk that are necessary for larval survival. Since all sponges have lecithotrophic development, yolk formation is an ineludible step of their embryogenesis. Sponge yolk platelets have a wide range of morphological forms, from entirely lipid or protein platelets to a combined platelet showing both lipids and proteins and even glycogen. So far, there are no comparative studies on the nature and content of yolk in congeneric species of sponges inhabiting contrasting environments, which could have putative effects on the larval adaptation to environmental conditions. Here, we have taken advantage of the worldwide distribution of the sponge genus Mycale, in order to compare the embryogenesis and yolk formation in two species inhabiting con- trasting latitudinal areas: M. acerata from Antarctic waters and M. laevis from the Caribbean. We have compared their brooded embryos and larvae using scanning and transmission electron microscopy, and calculated their energetic signatures based on the nature of their yolk. While the general morphological feature of embryos and larvae of both species were very similar, the main difference resided in the yolk nature. The Antarctic species, M. acer- ata, showed exclusively lipid yolk, whereas the Caribbean species, M. laevis, showed com- bined platelets of lipids and proteins and less frequently protein yolk platelets. The larvae of M. acerata were estimated to possess a two-fold energetic signature compared to that of M. laevis, which may have important ecological implications for their survival and for maintain- ing large population densities in the cold waters of the Southern Ocean. Article in Journal/Newspaper Antarc* Antarctic Antarctica Southern Ocean Dipòsit Digital de la Universitat de Barcelona Antarctic Southern Ocean The Antarctic PLOS ONE 10 3 e0118805 |
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Open Polar |
collection |
Dipòsit Digital de la Universitat de Barcelona |
op_collection_id |
ftubarcepubl |
language |
English |
topic |
Embriologia Esponges Embryology Sponges |
spellingShingle |
Embriologia Esponges Embryology Sponges Riesgo Gil, Ana Taboada Moreno, Sergi Sánchez Vila, Laura Solà Peracaula, Joan Bertrán, Andrea. Ávila Escartín, Conxita Some like it fat: Comparative ultraestructure of the embryo in two demo sponges of the genus Mycale (Order Poecilosclerida): Mycale acerata from Antarctica and Mycale laevis from the Caribbean |
topic_facet |
Embriologia Esponges Embryology Sponges |
description |
During embryogenesis, organisms with lecithotrophic indirect development usually accu- mulate large quantities of energetic reserves in the form of yolk that are necessary for larval survival. Since all sponges have lecithotrophic development, yolk formation is an ineludible step of their embryogenesis. Sponge yolk platelets have a wide range of morphological forms, from entirely lipid or protein platelets to a combined platelet showing both lipids and proteins and even glycogen. So far, there are no comparative studies on the nature and content of yolk in congeneric species of sponges inhabiting contrasting environments, which could have putative effects on the larval adaptation to environmental conditions. Here, we have taken advantage of the worldwide distribution of the sponge genus Mycale, in order to compare the embryogenesis and yolk formation in two species inhabiting con- trasting latitudinal areas: M. acerata from Antarctic waters and M. laevis from the Caribbean. We have compared their brooded embryos and larvae using scanning and transmission electron microscopy, and calculated their energetic signatures based on the nature of their yolk. While the general morphological feature of embryos and larvae of both species were very similar, the main difference resided in the yolk nature. The Antarctic species, M. acer- ata, showed exclusively lipid yolk, whereas the Caribbean species, M. laevis, showed com- bined platelets of lipids and proteins and less frequently protein yolk platelets. The larvae of M. acerata were estimated to possess a two-fold energetic signature compared to that of M. laevis, which may have important ecological implications for their survival and for maintain- ing large population densities in the cold waters of the Southern Ocean. |
format |
Article in Journal/Newspaper |
author |
Riesgo Gil, Ana Taboada Moreno, Sergi Sánchez Vila, Laura Solà Peracaula, Joan Bertrán, Andrea. Ávila Escartín, Conxita |
author_facet |
Riesgo Gil, Ana Taboada Moreno, Sergi Sánchez Vila, Laura Solà Peracaula, Joan Bertrán, Andrea. Ávila Escartín, Conxita |
author_sort |
Riesgo Gil, Ana |
title |
Some like it fat: Comparative ultraestructure of the embryo in two demo sponges of the genus Mycale (Order Poecilosclerida): Mycale acerata from Antarctica and Mycale laevis from the Caribbean |
title_short |
Some like it fat: Comparative ultraestructure of the embryo in two demo sponges of the genus Mycale (Order Poecilosclerida): Mycale acerata from Antarctica and Mycale laevis from the Caribbean |
title_full |
Some like it fat: Comparative ultraestructure of the embryo in two demo sponges of the genus Mycale (Order Poecilosclerida): Mycale acerata from Antarctica and Mycale laevis from the Caribbean |
title_fullStr |
Some like it fat: Comparative ultraestructure of the embryo in two demo sponges of the genus Mycale (Order Poecilosclerida): Mycale acerata from Antarctica and Mycale laevis from the Caribbean |
title_full_unstemmed |
Some like it fat: Comparative ultraestructure of the embryo in two demo sponges of the genus Mycale (Order Poecilosclerida): Mycale acerata from Antarctica and Mycale laevis from the Caribbean |
title_sort |
some like it fat: comparative ultraestructure of the embryo in two demo sponges of the genus mycale (order poecilosclerida): mycale acerata from antarctica and mycale laevis from the caribbean |
publisher |
Public Library of Science (PLoS) |
publishDate |
2015 |
url |
http://hdl.handle.net/2445/104309 |
geographic |
Antarctic Southern Ocean The Antarctic |
geographic_facet |
Antarctic Southern Ocean The Antarctic |
genre |
Antarc* Antarctic Antarctica Southern Ocean |
genre_facet |
Antarc* Antarctic Antarctica Southern Ocean |
op_relation |
Reproducció del document publicat a: https://doi.org/10.1371/journal.pone.0118805 PLoS One, 2015, vol. 10, num. 3, p. e0118805 Articles publicats en revistes (Biologia Evolutiva, Ecologia i Ciències Ambientals) https://doi.org/10.1371/journal.pone.0118805 1932-6203 http://hdl.handle.net/2445/104309 647850 25785444 |
op_rights |
cc-by (c) Riesgo Gil, Ana et al., 2015 http://creativecommons.org/licenses/by/3.0/es info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1371/journal.pone.0118805 |
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PLOS ONE |
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10 |
container_issue |
3 |
container_start_page |
e0118805 |
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1790609757835362304 |