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Appears in Collections:Biological and Environmental Sciences Journal Articles
Peer Review Status: Refereed
Title: A genome-centric view of the role of the Acropora kenti microbiome in coral health and resilience
Author(s): Messer, Lauren F.
Bourne, David G.
Robbins, Steven J.
Clay, Megan
Bell, Sara C.
McIlroy, Simon J.
Tyson, Gene W.
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Keywords: coral microbiome
holobiont metagenomics
Issue Date: 4-Apr-2024
Date Deposited: 11-Apr-2024
Citation: Messer LF, Bourne DG, Robbins SJ, Clay M, Bell SC, McIlroy SJ & Tyson GW (2024) A genome-centric view of the role of the Acropora kenti microbiome in coral health and resilience. <i>Nature Communications</i>, 15, Art. No.: 2902.
Abstract: Microbial diversity has been extensively explored in reef-building corals. However, the functional roles of coral-associated microorganisms remain poorly elucidated. Here, we recover 191 bacterial and 10 archaeal metagenome-assembled genomes (MAGs) from the coral Acropora kenti (formerly A. tenuis) and adjacent seawater, to identify microbial functions and metabolic interactions within the holobiont. We show that 82 MAGs were specific to the A. kenti holobiont, including members of the Pseudomonadota, Bacteroidota, and Desulfobacterota. A. kenti-specific MAGs displayed significant differences in their genomic features and functional potential relative to seawater-specific MAGs, with a higher prevalence of genes involved in host immune system evasion, nitrogen and carbon fixation, and synthesis of five essential B-vitamins. We find a diversity of A. kenti-specific MAGs encode the biosynthesis of essential amino acids, such as tryptophan, histidine, and lysine, which cannot be de novo synthesised by the host or Symbiodiniaceae. Across a water quality gradient spanning 2° of latitude, A. kenti microbial community composition is correlated to increased temperature and dissolved inorganic nitrogen, with corresponding enrichment in molecular chaperones, nitrate reductases, and a heat-shock protein. We reveal mechanisms of A. kenti-microbiome-symbiosis on the Great Barrier Reef, highlighting the interactions underpinning the health of this keystone holobiont.
DOI Link: 10.1038/s41467-024-46905-5
Rights: This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made.
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