Endosymbiotic Yeast Maternally Transmitted in a Marine Sponge

The detection of an endosymbiotic yeast in demosponges of the genus Chondrilla described here records the first such association within the phylum Porifera. The symbiont, interpreted as a yolk body in previous ultrastructural studies, is a chitinous-walled fission yeast. Chitin was detected by an im...

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Detalles Bibliográficos
Autores: Maldonado, Manuel, Cortadellas, Nuria, Trillas, M. Isabel, Rützler, Klaus
Tipo de recurso: artículo
Fecha de publicación:2005
País:España
Institución:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/3948
Acceso en línea:http://hdl.handle.net/10261/3948
Access Level:acceso abierto
Palabra clave:Demosponges
Chondrilla
Endosymbiotic yeast
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spelling Endosymbiotic Yeast Maternally Transmitted in a Marine SpongeA sponge-endosymbiotic yeastMaldonado, ManuelCortadellas, NuriaTrillas, M. IsabelRützler, KlausDemospongesChondrillaEndosymbiotic yeastThe detection of an endosymbiotic yeast in demosponges of the genus Chondrilla described here records the first such association within the phylum Porifera. The symbiont, interpreted as a yolk body in previous ultrastructural studies, is a chitinous-walled fission yeast. Chitin was detected by an immunocytochemical technique that labels its beta-1,4-N-acetyl-D-glucosamine residues. Abundant symbiotic yeast cells (4.4 +/- 2.3 cells per 10 microm2) transmitted from the soma through the oocytes to the fertilized eggs are directly propagated by vertical transmission in the female. Vertically transmitted yeast were detected in three Chondrilla species with disjunct biogeographical distributions: the Mediterranean, the Caribbean, and the Australian Pacific. Apparently these yeasts are not present in other demosponge genera. Therefore, the fungal endosymbiosis most likely evolved before or during the diversification of the genus Chondrilla.This study was supported by grants from The Perry Institute for Marine Science (CMRC-00-26) and the Spanish Ministry for Science and Technology (MCYTBMC2002- 01228).Peer reviewedMarine Biological Laboratory200820082005info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_65012143992 bytesapplication/pdfhttp://hdl.handle.net/10261/3948reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)Inglésinfo:eu-repo/semantics/openAccessoai:digital.csic.es:10261/39482026-05-22T06:33:51Z
dc.title.none.fl_str_mv Endosymbiotic Yeast Maternally Transmitted in a Marine Sponge
A sponge-endosymbiotic yeast
title Endosymbiotic Yeast Maternally Transmitted in a Marine Sponge
spellingShingle Endosymbiotic Yeast Maternally Transmitted in a Marine Sponge
Maldonado, Manuel
Demosponges
Chondrilla
Endosymbiotic yeast
title_short Endosymbiotic Yeast Maternally Transmitted in a Marine Sponge
title_full Endosymbiotic Yeast Maternally Transmitted in a Marine Sponge
title_fullStr Endosymbiotic Yeast Maternally Transmitted in a Marine Sponge
title_full_unstemmed Endosymbiotic Yeast Maternally Transmitted in a Marine Sponge
title_sort Endosymbiotic Yeast Maternally Transmitted in a Marine Sponge
dc.creator.none.fl_str_mv Maldonado, Manuel
Cortadellas, Nuria
Trillas, M. Isabel
Rützler, Klaus
author Maldonado, Manuel
author_facet Maldonado, Manuel
Cortadellas, Nuria
Trillas, M. Isabel
Rützler, Klaus
author_role author
author2 Cortadellas, Nuria
Trillas, M. Isabel
Rützler, Klaus
author2_role author
author
author
dc.subject.none.fl_str_mv Demosponges
Chondrilla
Endosymbiotic yeast
topic Demosponges
Chondrilla
Endosymbiotic yeast
description The detection of an endosymbiotic yeast in demosponges of the genus Chondrilla described here records the first such association within the phylum Porifera. The symbiont, interpreted as a yolk body in previous ultrastructural studies, is a chitinous-walled fission yeast. Chitin was detected by an immunocytochemical technique that labels its beta-1,4-N-acetyl-D-glucosamine residues. Abundant symbiotic yeast cells (4.4 +/- 2.3 cells per 10 microm2) transmitted from the soma through the oocytes to the fertilized eggs are directly propagated by vertical transmission in the female. Vertically transmitted yeast were detected in three Chondrilla species with disjunct biogeographical distributions: the Mediterranean, the Caribbean, and the Australian Pacific. Apparently these yeasts are not present in other demosponge genera. Therefore, the fungal endosymbiosis most likely evolved before or during the diversification of the genus Chondrilla.
publishDate 2005
dc.date.none.fl_str_mv 2005
2008
2008
dc.type.none.fl_str_mv info:eu-repo/semantics/article
http://purl.org/coar/resource_type/c_6501
format article
dc.identifier.none.fl_str_mv http://hdl.handle.net/10261/3948
url http://hdl.handle.net/10261/3948
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv 2143992 bytes
application/pdf
dc.publisher.none.fl_str_mv Marine Biological Laboratory
publisher.none.fl_str_mv Marine Biological Laboratory
dc.source.none.fl_str_mv reponame:DIGITAL.CSIC. Repositorio Institucional del CSIC
instname:Consejo Superior de Investigaciones Científicas (CSIC)
instname_str Consejo Superior de Investigaciones Científicas (CSIC)
reponame_str DIGITAL.CSIC. Repositorio Institucional del CSIC
collection DIGITAL.CSIC. Repositorio Institucional del CSIC
repository.name.fl_str_mv
repository.mail.fl_str_mv
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