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dc.creator Maldonado, Manuel
dc.creator Cortadellas, Nuria
dc.creator Trillas, Mª Isabel
dc.creator Rützler, Klaus
dc.date 2008-04-30T11:52:10Z
dc.date 2008-04-30T11:52:10Z
dc.date 2005-10
dc.date.accessioned 2017-01-31T01:08:30Z
dc.date.available 2017-01-31T01:08:30Z
dc.identifier Biol. Bull. 209: 94–106. (October 2005)
dc.identifier PMID: 16260769 [PubMed - indexed for MEDLINE]
dc.identifier http://hdl.handle.net/10261/3948
dc.identifier.uri http://dspace.mediu.edu.my:8181/xmlui/handle/10261/3948
dc.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.
dc.description 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).
dc.description Peer reviewed
dc.format 2143992 bytes
dc.format application/pdf
dc.language eng
dc.publisher Marine Biological Laboratory
dc.rights openAccess
dc.subject Demosponges
dc.subject Chondrilla
dc.subject Endosymbiotic yeast
dc.title Endosymbiotic Yeast Maternally Transmitted in a Marine Sponge
dc.title A sponge-endosymbiotic yeast
dc.type Artículo


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