Stable mucus-associated bacterial communities in bleached and healthy corals of Porites lobata from the Arabian Seas

Journal article


Hadaidi, Ghaida, Röthig, Till, Yum, Lauren K., Ziegler, Maren, Arif, Chatchanit, Roder, Cornelia, Burt, John and Voolstra, Christian R. 2017. Stable mucus-associated bacterial communities in bleached and healthy corals of Porites lobata from the Arabian Seas. Scientific Reports. https://doi.org/10.1038/srep45362
AuthorsHadaidi, Ghaida, Röthig, Till, Yum, Lauren K., Ziegler, Maren, Arif, Chatchanit, Roder, Cornelia, Burt, John and Voolstra, Christian R.
Abstract

Coral reefs are subject to coral bleaching manifested by the loss of endosymbiotic algae from coral host tissue. Besides algae, corals associate with bacteria. In particular, bacteria residing in the surface mucus layer are thought to mediate coral health, but their role in coral bleaching is unknown. We collected mucus from bleached and healthy Porites lobata colonies in the Persian/Arabian Gulf (PAG) and the Red Sea (RS) to investigate bacterial microbiome composition using 16S rRNA gene amplicon sequencing. We found that bacterial community structure was notably similar in bleached and healthy corals, and the most abundant bacterial taxa were identical. However, fine-scale differences in bacterial community composition between the PAG and RS were present and aligned with predicted differences in sulfur- and nitrogen-cycling processes. Based on our data, we argue that bleached corals benefit from the stable composition of mucus bacteria that resemble their healthy coral counterparts and presumably provide a conserved suite of protective functions, but monitoring of post-bleaching survival is needed to further confirm this assumption. Conversely, fine-scale site-specific differences highlight flexibility of the bacterial microbiome that may underlie adjustment to local environmental conditions and contribute to the widespread success of Porites lobata.

KeywordsCoral reef; Microbiome
Year2017
JournalScientific Reports
PublisherNature Research
ISSN2045-2322
Digital Object Identifier (DOI)https://doi.org/10.1038/srep45362
Web address (URL)http://hdl.handle.net/10545/623314
hdl:10545/623314
Publication dates31 Mar 2017
Publication process dates
Deposited17 Jan 2019, 18:09
Accepted23 Feb 2017
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Archived with thanks to Scientific Reports

ContributorsKing Abdullah University of Science and Technology (KAUST) and New York University, Abu Dhabi
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https://repository.derby.ac.uk/item/93215/stable-mucus-associated-bacterial-communities-in-bleached-and-healthy-corals-of-porites-lobata-from-the-arabian-seas

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