Coral reef invertebrate microbiomes correlate with the presence of photosymbionts

Bourne, David G., Dennis, Paul G., Uthicke, Sven, Soo, Rochelle M., Tyson, Gene W. and Webster, Nicole (2013) Coral reef invertebrate microbiomes correlate with the presence of photosymbionts. Isme Journal, 7 7: 1452-1458. doi:10.1038/ismej.2012.172


Author Bourne, David G.
Dennis, Paul G.
Uthicke, Sven
Soo, Rochelle M.
Tyson, Gene W.
Webster, Nicole
Title Coral reef invertebrate microbiomes correlate with the presence of photosymbionts
Journal name Isme Journal   Check publisher's open access policy
ISSN 1751-7362
1751-7370
Publication date 2013-07
Year available 2013
Sub-type Article (original research)
DOI 10.1038/ismej.2012.172
Volume 7
Issue 7
Start page 1452
End page 1458
Total pages 7
Place of publication London, United Kingdom
Publisher Nature Publishing Group
Collection year 2014
Language eng
Formatted abstract
Coral reefs provide habitat for an array of marine invertebrates that host symbiotic microbiomes. Photosynthetic symbionts including Symbiodinium dinoflagellates and diatoms potentially influence the diversity of their host-associated microbiomes by releasing carbon-containing photosynthates and other organic compounds that fuel microbial metabolism. Here we used 16S ribosomal RNA (rRNA) gene amplicon pyrosequencing to characterise the microbiomes of 11 common Great Barrier Reef marine invertebrate species that host photosynthetic symbionts and five taxa in which they are absent. The presence of photosynthetic symbionts influenced the composition but not the species richness, evenness and phylogenetic diversity of invertebrate-associated microbiomes. Invertebrates without photosynthetic symbionts were dominated by Alphaproteobacteria, whereas those hosting photosynthetic symbionts were dominated by Gammaproteobacteria. Interestingly, many microbial species from photosymbiont-bearing invertebrates, including Oceanospirillales spp., Alteromonas spp., Pseudomonas spp., Halomonas spp., are implicated in the metabolism of dimethylsulfoniopropionate (DMSP). DMSP is produced in high concentrations by photosynthetic dinoflagellates and is involved in climate regulation by facilitating cloud formation. Microbiomes correlated with host taxa and replicate individuals from most sampled species grouped in distance-based redundancy analysis of retrieved 16S rRNA gene sequences. This study highlights the complex nature of invertebrate holobionts and confirms the importance of photosynthetic symbionts in structuring marine invertebrate bacterial communities
Keyword Marine invertebrate
Microbial Diversity
Pyrosequencing
Coral reefs
Mucus Associated Bacteria
Great Barrier Reef
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: Official 2014 Collection
School of Chemistry and Molecular Biosciences
Advanced Water Management Centre Publications
 
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