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    Distinct bacterial microbiomes associate with the deep-sea coral Eguchipsammia fistula from the Red Sea and from aquaria settings.

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    Authors
    Röthig, Till
    Roik, Anna
    Yum, Lauren K.
    Voolstra, Christian R.
    Affiliation
    King Abdullah University of Science and Technology (KAUST)
    Issue Date
    2017-08-10
    
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    Abstract
    Microbial communities associated with deep-sea corals are beginning to be studied in earnest and the contribution of the microbiome to host organismal function remains to be investigated. In this regard, the ability of the microbiome to adjust to prevailing environmental conditions might provide clues to its functional importance. In this study, we characterized bacterial community composition associated with the deep-sea coral Eguchipsammia fistula under natural (in situ) and aquaria (ex situ) settings using 16S rRNA gene amplicon sequencing. We compared freshly collected Red Sea coral specimens with those reared for >1 year at conditions that partially differed from the natural environment, in particular regarding increased oxygen and food availability under ex situ conditions. We found substantial differences between the microbiomes associated with corals under both environmental settings. The core microbiome comprised only six bacterial taxa consistently present in all corals, whereas the majority of bacteria were exclusively associated either with freshly collected corals or corals under long-term reared aquaria settings. Putative functional profiling of microbial communities showed that corals in their natural habitat were enriched for processes indicative of a carbon- and nitrogen-limited environment, which might be reflective of differences in diet under in situ and ex situ conditions. The ability of E. fistula to harbor distinct microbiomes under different environmental settings might contribute to the flexibility and phenotypic plasticity of this cosmopolitan coral. Future efforts should further assess the role of these different bacteria in holobiont function, in particular since E. fistula is naturally present in markedly different environments.
    Citation
    Röthig T. et al. (2017) ‘Distinct bacterial microbiomes associate with the deep-sea coral Eguchipsammia fistula from the Red Sea and from aquaria settings’ Frontiers in Marine Science, 4: 259. Doi: 10.3389/fmars.2017.00259
    Publisher
    Frontiers Media
    Journal
    Frontiers in Marine Science
    URI
    http://hdl.handle.net/10545/623302
    DOI
    10.3389/fmars.2017.00259
    Additional Links
    http://journal.frontiersin.org/article/10.3389/fmars.2017.00259/full
    Type
    Article
    Language
    en
    EISSN
    2296-7745
    ae974a485f413a2113503eed53cd6c53
    10.3389/fmars.2017.00259
    Scopus Count
    Collections
    Environmental Sustainability Research Centre

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