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The microbiome of coral surface mucus has a key role in mediating holobiont health and survival upon disturbance

dc.contributor.authorGlasl, Bettina
dc.contributor.authorHerndl, Gerhard J.
dc.contributor.authorFrade, Pedro R.
dc.date.accessioned2017-04-07T15:56:04Z
dc.date.available2017-04-07T15:56:04Z
dc.date.issued2016-09
dc.description.abstractMicrobes are well-recognized members of the coral holobiont. However, little is known about the short-term dynamics of mucus-associated microbial communities under natural conditions and after disturbances, and how these dynamics relate to the host's health. Here we examined the natural variability of prokaryotic communities (based on 16S ribosomal RNA gene amplicon sequencing) associating with the surface mucus layer (SML) of Porites astreoides, a species exhibiting cyclical mucus aging and shedding. Shifts in the prokaryotic community composition during mucus aging led to the prevalence of opportunistic and potentially pathogenic bacteria (Verrucomicrobiaceae and Vibrionaceae) in aged mucus and to a twofold increase in prokaryotic abundance. After the release of aged mucus sheets, the community reverted to its original state, dominated by Endozoicimonaceae and Oxalobacteraceae. Furthermore, we followed the fate of the coral holobiont upon depletion of its natural mucus microbiome through antibiotics treatment. After re-introduction to the reef, healthy-looking microbe-depleted corals started exhibiting clear signs of bleaching and necrosis. Recovery versus mortality of the P. astreoides holobiont was related to the degree of change in abundance distribution of the mucus microbiome. We conclude that the natural prokaryotic community inhabiting the coral SML contributes to coral health and that cyclical mucus shedding has a key role in coral microbiome dynamics.
dc.identifier.doi10.1038/ismej.2016.9
dc.identifier.issn1751-7362
dc.identifier.urihttp://hdl.handle.net/10400.1/9306
dc.language.isoeng
dc.peerreviewedyes
dc.relation.isbasedonWOS:000386664600018
dc.titleThe microbiome of coral surface mucus has a key role in mediating holobiont health and survival upon disturbance
dc.typejournal article
dspace.entity.typePublication
oaire.citation.endPage2292
oaire.citation.issue9
oaire.citation.startPage2280
oaire.citation.titleISME Journal
oaire.citation.volume10
rcaap.rightsrestrictedAccess
rcaap.typearticle

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