Cultivable yeasts associated with demosponges from Puerto Rico
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1.
University of Puerto Rico at Mayagü
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2.
University of Puerto Rico at Mayagüez, Department of Biology, Call Box 9000, Mayagüez PR 00681
More Information
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Received:
21 July 2019
Revised:
16 August 2019
Published online:
25 September 2019
Studies in Fungi
4(1): 153−161(2019) |
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Abstract
Sponges are known for their symbiotic associations with bacteria and to a lesser extent with fungi. It has been argued that the association between fungi and sponges is not truly symbiotic, and fungal presence is incidental. Nevertheless, a vertically transmitted endosymbiotic yeast has been observed by transmission electron microscopy in sponges of the genus Chondrilla. Our work was focused on documenting the presence of yeasts associated with marine sponges from Puerto Rico. Sponge samples were taken from healthy mature colonies of Ircinia strobilina, Tedania ignis, and Chondrilla caribensis. A total of 36 yeast morphotypes were isolated and analysed by sequencing the nuclear ribosomal ITS region. Saccharomyces cerevisiae, was isolated from all the samples, comprising the first report of this yeast as a common inhabitant in marine sponges. Other yeasts isolated include the halophilic black yeast, Hortaea werneckii, and an unidentified species belongs to the Sporidiobolales (Basidiomycota). The high isolation frequency of S. cerevisiae from our sponge samples supports the possibility that Saccharomyces cerevisiae as an active member of the sponges’ microbial community.
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Copyright: © 2019 by the author(s). This article is an open access article distributed under Creative Commons Attribution License (CC BY 4.0), visit https://creativecommons.org/licenses/by/4.0/.
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G Rosado-Rodríguez, E Sánchez-Martínez, SL Maldonado-Ramírez, E Otero. 2019. Cultivable yeasts associated with demosponges from Puerto Rico. Studies in Fungi 4(1):153−161 doi: 10.5943/sif/4/1/18
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G Rosado-Rodríguez, E Sánchez-Martínez, SL Maldonado-Ramírez, E Otero. 2019. Cultivable yeasts associated with demosponges from Puerto Rico. Studies in Fungi 4(1):153−161 doi: 10.5943/sif/4/1/18
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