Bacterial diversity and White Plague Disease-associated community changes in the Caribbean coral <i>Montastraea faveolata</i>

Sunagawa, Shinichi; DeSantis, Todd Z.; Piceno, Yvette M.; Brodie, Eoin L.; DeSalvo, Michael K.; Voolstra, Christian R.; Weil, Ernesto; Andersen, Gary L.; Medina, Mónica

doi:10.1038/ismej.2008.131

Cited by 364 publications

(405 citation statements)

References 61 publications

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“…Another interesting finding we observed when examining the community in the corals exposed to pH 7.3 was the increase in species showing close homology to families that include known coral pathogens, such as Vibrionaceae and Alteromonadaceae (Ritchie, 2006;Bourne et al, 2007;Arboleda and Reichardt, 2009;Sunagawa et al, 2009), as well as Rhodobacteraceae (Alphaproteobacteria), previously isolated from diseased, injured or stressed marine invertebrates (Sekar et al, 2006;Sunagawa et al, 2009).…”

Section: Discussionmentioning

confidence: 87%

“…In this group, clones were found related to coral bacterial symbionts previously found in the Caribbean coral Montastraea faveolata (Sunagawa et al, 2009), Siderastrea siderea (Sekar et al, 2008) and the Mediterranean coral Oculina patagonica . Although Bacteroidetes have been previously detected in healthy corals (Sekar et al, 2008), an increase in Bacteroidetes was associated with Black Band Disease (Cooney et al, 2002;Frias-Lopez et al, 2002, 2004Barneah et al, 2007).…”

Section: Discussionmentioning

confidence: 99%

“…(GU726843) (see Supplementary Table S2). This change is especially interesting as species that belong to Vibrionaceae and Alteromonadaceae were previously associated with diseased or stressed corals (Ritchie, 2006;Bourne et al, 2007;Arboleda and Reichardt, 2009;Sunagawa et al, 2009).…”

Section: Diversity Of the Culturable Bacterial Communities And Their mentioning

confidence: 99%

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The impact of reduced pH on the microbial community of the coral Acropora eurystoma

et al. 2010

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Rising concentrations of atmospheric carbon dioxide are acidifying the world's oceans. Surface seawater pH is 0.1 units lower than pre-industrial values and is predicted to decrease by up to 0.4 units by the end of the century. This change in pH may result in changes in the physiology of ocean organisms, in particular, organisms that build their skeletons/shells from calcium carbonate, such as corals. This physiological change may also affect other members of the coral holobiont, for example, the microbial communities associated with the coral, which in turn may affect the coral physiology and health. In the present study, we examined changes in bacterial communities in the coral mucus, tissue and skeleton following exposure of the coral Acropora eurystoma to two different pH conditions: 7.3 and 8.2 (ambient seawater). The microbial community was different at the two pH values, as determined by denaturing gradient gel electrophoresis and 16S rRNA gene sequence analysis. Further analysis of the community in the corals maintained at the lower pH revealed an increase in bacteria associated with diseased and stressed corals, such as Vibrionaceae and Alteromonadaceae. In addition, an increase in the number of potential antibacterial activity was recorded among the bacteria isolated from the coral maintained at pH 7.3. Taken together, our findings highlight the impact that changes in the pH may have on the coral-associated bacterial community and their potential contribution to the coral host.

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Section: Discussionmentioning

confidence: 87%

Section: Discussionmentioning

confidence: 99%

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The impact of reduced pH on the microbial community of the coral Acropora eurystoma

et al. 2010

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“…Animal-plant/microbe symbioses are vital to these ecosystems as they facilitate photosynthetic productivity, mineral recycling, nutrient provision to the host and secondary metabolite production (Smith and Douglas, 1987). Although patterns of microbial diversity and putative symbiotic functions have been well explored in corals and sponges (Sunagawa et al, 2009;Mouchka et al, 2010;Webster and Taylor, 2012;Bourne and Webster, 2013), there is a lack of data on microbial associations in other reef taxa including Bivalves, Foraminifera and Ascidians.…”

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confidence: 99%

Coral reef invertebrate microbiomes correlate with the presence of photosymbionts

et al. 2013

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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 invertebrateassociated 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.

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“…Although an infectious agent, the bacterium Aurantimonas coralicida, was hypothesized to be the cause of WP type II in the coral Dichocoenia stokesii (Richardson et al, 1998;Denner et al, 2003), A. coralicida is not always associated with WP-infected coral colonies. For example, this bacterium was associated with healthy but not WP-infected Montastraea annularis colonies (Pantos et al, 2003) or WP-infected colonies from different geographic regions and/or host species (Siderastrea, Diploria; Sunagawa et al, 2009;Cárdenas et al, 2012).…”

Section: Introductionmentioning

confidence: 99%

Potential role of viruses in white plague coral disease

Soffer

Brandt

Correa³

et al. 2013

The ISME Journal

107

121

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White plague (WP)-like diseases of tropical corals are implicated in reef decline worldwide, although their etiological cause is generally unknown. Studies thus far have focused on bacterial or eukaryotic pathogens as the source of these diseases; no studies have examined the role of viruses. Using a combination of transmission electron microscopy (TEM) and 454 pyrosequencing, we compared 24 viral metagenomes generated from Montastraea annularis corals showing signs of WP-like disease and/or bleaching, control conspecific corals, and adjacent seawater. TEM was used for visual inspection of diseased coral tissue. No bacteria were visually identified within diseased coral tissues, but viral particles and sequence similarities to eukaryotic circular Rep-encoding single-stranded DNA viruses and their associated satellites (SCSDVs) were abundant in WP diseased tissues. In contrast, sequence similarities to SCSDVs were not found in any healthy coral tissues, suggesting SCSDVs might have a role in WP disease. Furthermore, Herpesviridae gene signatures dominated healthy tissues, corroborating reports that herpes-like viruses infect all corals. Nucleocytoplasmic large DNA virus (NCLDV) sequences, similar to those recently identified in cultures of Symbiodinium (the algal symbionts of corals), were most common in bleached corals. This finding further implicates that these NCLDV viruses may have a role in bleaching, as suggested in previous studies. This study determined that a specific group of viruses is associated with diseased Caribbean corals and highlights the potential for viral disease in regional coral reef decline.

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Bacterial diversity and White Plague Disease-associated community changes in the Caribbean coral Montastraea faveolata

Cited by 364 publications

References 61 publications

The impact of reduced pH on the microbial community of the coral Acropora eurystoma

The impact of reduced pH on the microbial community of the coral Acropora eurystoma

Coral reef invertebrate microbiomes correlate with the presence of photosymbionts

Potential role of viruses in white plague coral disease

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