Low pH reduces the virulence of black band disease on Orbicella faveolata

Muller, Erinn M.; Leporacci, Nicole M.; Macartney, Keir J.; Shea, Alessandra G.; Crane, Rachel E.; Hall, Emily R.; Ritchie, Kim B.

doi:10.1371/journal.pone.0178869

Cited by 14 publications

(11 citation statements)

References 55 publications

(65 reference statements)

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“…It has further been suggested that other anthropogenic activities, such as coastal pollution or ocean acidification, contribute to the increase of coral disease incidents ( Jackson et al, 2001 ; Muller et al, 2017 ; Rosenberg & Ben-Haim, 2002 ). The surveyed outbreak area was adjacent to the outflow of a large aquaculture facility, which might have further aggravated the effects of the bleaching event due to increased nutrient availability ( Roder et al, 2015 ; Ziegler et al, 2016 ).…”

Section: Discussionmentioning

confidence: 99%

Ecological and molecular characterization of a coral black band disease outbreak in the Red Sea during a bleaching event

Hadaidi

Ziegler

Shore‐Maggio

et al. 2018

PeerJ

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Black Band Disease (BBD) is a widely distributed and destructive coral disease that has been studied on a global scale, but baseline data on coral diseases is missing from many areas of the Arabian Seas. Here we report on the broad distribution and prevalence of BBD in the Red Sea in addition to documenting a bleaching-associated outbreak of BBD with subsequent microbial community characterization of BBD microbial mats at this reef site in the southern central Red Sea. Coral colonies with BBD were found at roughly a third of our 22 survey sites with an overall prevalence of 0.04%. Nine coral genera were infected including Astreopora, Coelastrea, Dipsastraea, Gardineroseris, Goniopora, Montipora, Pavona, Platygyra, and Psammocora. For a southern central Red Sea outbreak site, overall prevalence was 40 times higher than baseline (1.7%). Differential susceptibility to BBD was apparent among coral genera with Dipsastraea (prevalence 6.1%), having more diseased colonies than was expected based on its abundance within transects. Analysis of the microbial community associated with the BBD mat showed that it is dominated by a consortium of cyanobacteria and heterotrophic bacteria. We detected the three main indicators for BBD (filamentous cyanobacteria, sulfate-reducing bacteria (SRB), and sulfide-oxidizing bacteria (SOB)), with high similarity to BBD-associated microbes found worldwide. More specifically, the microbial consortium of BBD-diseased coral colonies in the Red Sea consisted of Oscillatoria sp. (cyanobacteria), Desulfovibrio sp. (SRB), and Arcobacter sp. (SOB). Given the similarity of associated bacteria worldwide, our data suggest that BBD represents a global coral disease with predictable etiology. Furthermore, we provide a baseline assessment of BBD disease prevalence in the Red Sea, a still understudied region.

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Section: Discussionmentioning

confidence: 99%

Ecological and molecular characterization of a coral black band disease outbreak in the Red Sea during a bleaching event

Hadaidi

Ziegler

Shore‐Maggio

et al. 2018

PeerJ

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“…However, Ruegeria had different patterns once it was the most abundant genera in diseased colonies. This genus is known to be associated with several healthy 14 , 59 – 61 and diseased zooxanthellate corals 10 , 11 , 14 , 22 – 24 . Previous studies suggested that Ruegeria inhibits/controls the growth of other bacteria genera through tropodithietic acid 62 .…”

Section: Discussionmentioning

confidence: 99%

The microbial profile of a tissue necrosis affecting the Atlantic invasive coral Tubastraea tagusensis

Zanotti

Gregoracci

Kitahara

2021

Sci Rep

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The Southwestern Atlantic rocky reef ecosystems are undergoing significant changes due to sun-corals (Tubastraea tagusensis and T. coccinea) invasion. At Búzios Island, on the northern coast of São Paulo State, where the abundance of T. tagusensis is particularly high, some colonies are displaying tissue necrosis, a phenomenon never reported for this invasive nor any other azooxanthellate coral species. Using next-generation sequencing, we sought to understand the relationship between T. tagusensis tissue necrosis and its microbiota. Thus, through amplicon sequencing, we studied both healthy and diseased coral colonies. Results indicate a wide variety of bacteria associated with healthy colonies and an even higher diversity associated with those corals presenting tissue necrosis, which displayed nearly 25% more microorganisms. Also, as the microbial community associated with the seven healthy colonies did not alter composition significantly, it was possible to verify the microbial succession during different stages of tissue necrosis (i.e., initial, intermediate, and advanced). Comparing the microbiome from healthy corals to those in early tissue necrosis suggests 21 potential pathogens, which might act as the promoters of such disease.

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“…The knowledge about coral disease interactions with environmental stressful conditions can also be widely expanded if we increase the attention to other variables or their interactions with some better studied ones. The role of high temperatures has been the main environmental driver addressed, in coral research, however there are other conditions that have been explored in a few papers like changes in water pH (Muller et al., 2017; Stanić et al., 2011; Remily & Richardson, 2006), dissolved oxygen (Remily & Richardson, 2006), and other better studied like the role of nutrient enrichment (Kaczmarsky & Richardson, 2011; Vega-Thurber et al., 2014; Voss & Richardson, 2006; Bruno et al., 2003; Looney, Sutherland & Lipp, 2010) whose potentially interactive effects with temperature and diseases remain far less explored.…”

Section: Discussionmentioning

confidence: 99%

Systematic review and meta-analysis of 50 years of coral disease research visualized through the scope of network theory

Montilla

Ascanio

Verde

et al. 2019

PeerJ

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Coral disease research encompasses five decades of undeniable progress. Since the first descriptions of anomalous signs, we have come to understand multiple processes and environmental drivers that interact with coral pathologies. In order to gain a better insight into the knowledge we already have, we explored how key topics in coral disease research have been related to each other using network analysis. We reviewed 719 papers and conference proceedings published from 1965 to 2017. From each study, four elements determined our network nodes: (1) studied disease(s); (2) host genus; (3) marine ecoregion(s) associated with the study site; and (4) research objectives. Basic properties of this network confirmed that there is a set of specific topics comprising the majority of research. The top five diseases, genera, and ecoregions studied accounted for over 48% of the research effort in all cases. The community structure analysis identified 15 clusters of topics with different degrees of overlap among them. These clusters represent the typical sets of elements that appear together for a given study. Our results show that while some coral diseases have been studied considering multiple aspects, the overall trend is for most diseases to be understood under a limited range of approaches, e.g., bacterial assemblages have been considerably studied in Yellow and Black band diseases while immune response has been better examined for the aspergillosis-Gorgonia system. Thus, our challenge in the near future is to identify and resolve potential gaps in order to achieve a more comprehensive progress on coral disease research.

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Low pH reduces the virulence of black band disease on Orbicella faveolata

Cited by 14 publications

References 55 publications

Ecological and molecular characterization of a coral black band disease outbreak in the Red Sea during a bleaching event

Ecological and molecular characterization of a coral black band disease outbreak in the Red Sea during a bleaching event

The microbial profile of a tissue necrosis affecting the Atlantic invasive coral Tubastraea tagusensis

Systematic review and meta-analysis of 50 years of coral disease research visualized through the scope of network theory

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