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Composition of Bacterial Communities Associated with Aurelia aurita Changes with Compartment, Life Stage, and Population.

  • Academic Journal
  • Weiland-Bräuer N; Institute for General Microbiology, Christian Albrecht University Kiel, Kiel, Germany.
    Neulinger SC; Institute for General Microbiology, Christian Albrecht University Kiel, Kiel, Germany.
    Pinnow N; Institute for General Microbiology, Christian Albrecht University Kiel, Kiel, Germany.
    Künzel S; Max Planck Institute for Evolutionary Biology, Plön, Germany.
    Baines JF; Max Planck Institute for Evolutionary Biology, Plön, Germany Institute for Experimental Medicine, Christian Albrecht University Kiel, Kiel, Germany.
    Schmitz RA; Institute for General Microbiology, Christian Albrecht University Kiel, Kiel, Germany
  • Applied and environmental microbiology [Appl Environ Microbiol] 2015 Sep 01; Vol. 81 (17), pp. 6038-52. Date of Electronic Publication: 2015 Jun 26.
  • English
  • The scyphozoan Aurelia aurita is recognized as a key player in marine ecosystems and a driver of ecosystem change. It is thus intensely studied to address ecological questions, although its associations with microorganisms remain so far undescribed. In the present study, the microbiota associated with A. aurita was visualized with fluorescence in situ hybridization (FISH) analysis, and community structure was analyzed with respect to different life stages, compartments, and populations of A. aurita by 16S rRNA gene amplicon sequencing. We demonstrate that the composition of the A. aurita microbiota is generally highly distinct from the composition of communities present in ambient water. Comparison of microbial communities from different developmental stages reveals evidence for life stage-specific community patterns. Significant restructuring of the microbiota during strobilation from benthic polyp to planktonic life stages is present, arguing for a restructuring during the course of metamorphosis. Furthermore, the microbiota present in different compartments of the adult medusa (exumbrella mucus and gastric cavity) display significant differences, indicating body part-specific colonization. A novel Mycoplasma strain was identified in both compartment-specific microbiota and is most likely present inside the epithelium as indicated by FISH analysis of polyps, indicating potential endosymbiosis. Finally, comparison of polyps of different populations kept under the same controlled laboratory conditions in the same ambient water showed population-specific community patterns, most likely due the genetic background of the host. In conclusion, the presented data indicate that the associated microbiota of A. aurita may play important functional roles, e.g., during the life cycle.
    (Copyright © 2015, American Society for Microbiology. All Rights Reserved.)
Additional Information
Publisher: American Society for Microbiology Country of Publication: United States NLM ID: 7605801 Publication Model: Print-Electronic Cited Medium: Internet ISSN: 1098-5336 (Electronic) Linking ISSN: 00992240 NLM ISO Abbreviation: Appl Environ Microbiol Subsets: MEDLINE
Original Publication: Washington, American Society for Microbiology.
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SRA SRP049658
0 (DNA, Bacterial)
0 (RNA, Ribosomal, 16S)
Date Created: 20150628 Date Completed: 20160208 Latest Revision: 20181113