Paper| Year: | 2017 |
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| Author(s): | T. Viver, L.H. Orellana, J.K. Hatt, M. Urdiain, M. Díaz, M. Richter, J. Antón, M. Avian, R. Amann, K.T. Konstantinidis, R. Rosselló-Móra |
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| Title: | The low diverse gastric microbiome of the jellyfish Cotylorhiza tuberculata is dominated by four novel taxa |
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| Journal: | ENVIRONMENTAL MICROBIOLOGY |
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| ISSN: | 1462-2912 |
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| JCR Impact Factor: | 4.974 |
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| Volume: | 18 |
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| Issue No.: | 8 |
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| Pages: | 3039-3058 |
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| D.O.I.: | 10.1111/1462-2920.13763 |
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| Web: | |
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| Abstract: | © 2017 Society for Applied Microbiology and John Wiley & Sons Ltd
Cotylorhiza tuberculata is an important scyphozoan jellyfish producing
population blooms in the Mediterranean probably due to pelagic
ecosystem's decay. Its gastric cavity can serve as a simple model of
microbial–animal digestive associations, yet poorly characterized. Using
state-of-the-art metagenomic population binning and catalyzed reporter
deposition fluorescence in situ hybridization (CARD-FISH), we show that
only four novel clonal phylotypes were consistently associated with
multiple jellyfish adults. Two affiliated close to Spiroplasma and
Mycoplasma genera, one to chlamydial ‘Candidatus Syngnamydia’, and one
to bacteroidetal Tenacibaculum, and were at least one order of magnitude
more abundant than any other bacteria detected. Metabolic modelling
predicted an aerobic heterotrophic lifestyle for the chlamydia, which
were found intracellularly in Onychodromopsis-like ciliates. The
Spiroplasma-like organism was predicted to be an anaerobic fermenter
associated to some jellyfish cells, whereas the Tenacibaculum-like as
free-living aerobic heterotroph, densely colonizing the mesogleal axis
inside the gastric filaments. The association between the jellyfish and
its reduced microbiome was close and temporally stable, and possibly
related to food digestion and protection from pathogens. Based on the
genomic and microscopic data, we propose three candidate taxa:
‘Candidatus Syngnamydia medusae’, ‘Candidatus Medusoplasma mediterranei’
and ‘Candidatus Tenacibaculum medusae’. |
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Related staffMercedes Urdiain AsensioRamon Rosselló MóraBartomeu Viver PizàRelated departmentsGeneral ServicesRelated projectsSALPLOMA CTA 146Related research groupsEnvironmental Microbiology
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