The low diverse gastric microbiome of the jellyfish Cotylorhiza tuberculata is dominated by four novel taxa

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Título: The low diverse gastric microbiome of the jellyfish Cotylorhiza tuberculata is dominated by four novel taxa
Autor/es: Viver, Tomeu | Orellana, Luis H. | Hatt, Janet K. | Urdiain, Mercedes | Díaz, Sara | Richter, Michael | Anton, Josefa | Avian, Massimo | Amann, Rudolf | Konstantinidis, Konstantinos T. | Rosselló Móra, Ramon
Grupo/s de investigación o GITE: Ecología Microbiana Molecular
Centro, Departamento o Servicio: Universidad de Alicante. Departamento de Fisiología, Genética y Microbiología | Universidad de Alicante. Instituto Multidisciplinar para el Estudio del Medio "Ramón Margalef"
Palabras clave: Cotylorhiza tuberculata | Scyphozoan jellyfish | Gastric microbiome | Novel taxa
Área/s de conocimiento: Microbiología
Fecha de publicación: ago-2017
Editor: Society for Applied Microbiology | John Wiley & Sons
Cita bibliográfica: Environmental Microbiology. 2017, 19(8): 3039-3058. doi:10.1111/1462-2920.13763
Resumen: 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’.
Patrocinador/es: This research from RRM’s group was partially supported by the Spanish Ministry of Economy projects CGL2012-39627-C03-03 and CLG2015_66686-C3-1-P, which were also supported with European Regional Development Fund (FEDER) funds. KTK’s research was supported, in part, by the U.S. National Science Foundation (Award No. 1241046). RRM acknowledges the economic support of grant PR2015-00008 included in the program Salvador de Madariaga of the Ministry of Education, Culture and Sports in order to undertake a research stay at the MPI-MM in Bremen. TVP acknowledges the predoctoral fellowship of the Ministerio de Economía y Competitividad of the Spanish Government for the FPI fellowship (Nr BES-2013-064420) supporting his research activities.
ISSN: 1462-2912 (Print) | 1462-2920 (Online)
DOI: 10.1111/1462-2920.13763
Idioma: eng
Tipo: info:eu-repo/semantics/article
Derechos: © 2017 Society for Applied Microbiology and John Wiley & Sons Ltd
Revisión científica: si
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Aparece en las colecciones:INV - EMM - Artículos de Revistas

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