Coral microbiome dynamics, functions and design in a changing world

Nature Reviews Microbiology, Journal Year: 2019, Volume and Issue: 17(9), P. 557 - 567

Published: July 1, 2019

Language: Английский

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Adapting with Microbial Help: Microbiome Flexibility Facilitates Rapid Responses to Environmental Change

BioEssays, Journal Year: 2020, Volume and Issue: 42(7)

Published: June 16, 2020

Abstract Animals and plants are metaorganisms associate with microbes that affect their physiology, stress tolerance, fitness. Here the hypothesis alteration of microbiome may constitute a fast‐response mechanism to environmental change is examined. This supported by recent reciprocal transplant experiments reef corals, which have shown adapts thermally variable habitats changes over time when transplanted into different environments. Further, inoculation corals beneficial bacteria increases tolerance. But differ in ability flexibly bacteria. How scales flexibility reflect metaorganism adaptation mechanisms discussed future directions for research pinpointed. It posited broad phenomenon contributes organisms respond change. Importantly, adapting microbial help provide an alternate route organismal facilitates rapid responses.

Language: Английский

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Microbial Community Shifts Associated With the Ongoing Stony Coral Tissue Loss Disease Outbreak on the Florida Reef Tract

Frontiers in Microbiology, Journal Year: 2019, Volume and Issue: 10

Published: Sept. 24, 2019

As many as 22 of the 45 coral species on Florida Reef Tract are currently affected by stony tissue loss disease (SCTLD). The ongoing outbreak was first observed in 2014 Southeast near Miami and early 2019 has been documented from northernmost reaches reef tract Martin County down to Key West. We examined microbiota associated with lesions apparently healthy diseased colonies Montastraea cavernosa, Orbicella faveolata, Diploria labyrinthiformis, Dichocoenia stokesii. Analysis differentially abundant taxa between identified five unique amplicon sequence variants enriched three (all except O. faveolata), namely an unclassified genus Flavobacteriales sequences Fusibacter (Clostridiales), Planktotalea (Rhodobacterales), Algicola (Alteromonadales), Vibrio (Vibrionales). In addition, several groups likely opportunistic or saprophytic colonizers such Epsilonbacteraeota, Patescibacteria, Clostridiales, Bacteroidetes, Rhodobacterales were also SCTLD lesions. This work represents microbiological characterization SCTLD, initial step toward identifying potential pathogen(s) responsible for SCTLD.

Language: Английский

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Towards enhancing coral heat tolerance: a “microbiome transplantation” treatment using inoculations of homogenized coral tissues

Microbiome, Journal Year: 2021, Volume and Issue: 9(1)

Published: May 6, 2021

Microbiome manipulation could enhance heat tolerance and help corals survive the pressures of ocean warming. We conducted coral microbiome transplantation (CMT) experiments using reef-building corals, Pocillopora Porites, investigated whether this technique can benefit resistance while modifying bacterial microbiome. Initially, heat-tolerant donors were identified in wild. then used fresh homogenates made from donor tissues to inoculate conspecific, heat-susceptible recipients documented their bleaching responses microbiomes by 16S rRNA gene metabarcoding.Recipients both species bleached at lower rates compared control group when exposed short-term stress (34 °C). One hundred twelve (Pocillopora sp.) sixteen (Porites donor-specific indicating transmission bacteria. The amplicon sequence variants majority these transmitted bacteria belonged known, putatively symbiotic taxa linked observed beneficial effect on response. dynamics our support notion that community evenness dominance one or few species, rather than host-species identity, drivers for stability a holobiont context.Our results suggest likely favor uptake putative symbionts, recommending include taxonomic groups future probiotics screening efforts. Our study suggests scenario where symbionts might have been more efficient supporting resist native present group. These findings urgently call further experimental investigation mechanisms action underlying CMT field-based long-term studies testing persistence effect. Video abstract.

Language: Английский

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Frenemies on the reef? Resolving the coral–Endozoicomonas association

Trends in Microbiology, Journal Year: 2024, Volume and Issue: 32(5), P. 422 - 434

Published: Jan. 11, 2024

Language: Английский

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Deciphering Coral Disease Dynamics: Integrating Host, Microbiome, and the Changing Environment

Frontiers in Ecology and Evolution, Journal Year: 2020, Volume and Issue: 8

Published: Nov. 30, 2020

Diseases of tropical reef organisms is an intensive area study, but despite significant advances in methodology and the global knowledge base, identifying proximate causes disease outbreaks remains difficult. The dynamics infectious wildlife diseases are known to be influenced by shifting interactions among host, pathogen, other members microbiome, a collective body work clearly demonstrates that this also case for main foundation species on reefs, corals. Yet, wildlife, coral stand out as being driven largely changing environment. These contributed not only losses whole ecosystem regime shifts. Here we suggest better decipher corals, must integrate more holistic modern paradigms consider multiple variable three major players epizootics: its associated In perspective, discuss how expanding pathogen component classic host-pathogen-environment triad incorporate shifts microbiome leading dysbiosis provides model understanding dynamics. We outline issues arising when evaluating each trio make suggestions bridging gaps between them. further best tackle these challenges, researchers adjust standard paradigms, like one pathogen-one model, that, date, have been ineffectual at uncovering many emergent properties Lastly, recommendations ways forward fields marine ecology future conservation restoration given observations.

Language: Английский

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Modularity and predicted functions of the global sponge-microbiome network

Nature Communications, Journal Year: 2019, Volume and Issue: 10(1)

Published: March 1, 2019

Defining the organisation of species interaction networks and unveiling processes behind their assembly is fundamental to understanding patterns biodiversity, community stability ecosystem functioning. Marine sponges host complex communities microorganisms that contribute health survival, yet mechanisms microbiome are largely unknown. We present global marine sponge-microbiome network reveal a modular in both structure function. Modules linked by few sponge share microbes with other around world. Further, we provide evidence abiotic factors influence structuring when considering all present, but biotic interactions drive more intimately associated 'core' microorganisms. These findings suggest ecological evolutionary at play host-microbe assembly. expect be consistent across multicellular hosts throughout tree life.

Language: Английский

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Defining Coral Bleaching as a Microbial Dysbiosis within the Coral Holobiont

Microorganisms, Journal Year: 2020, Volume and Issue: 8(11), P. 1682 - 1682

Published: Oct. 29, 2020

Coral microbiomes are critical to holobiont health and functioning, but the stability of host–microbial interactions is fragile, easily shifting from eubiosis dysbiosis. The heat-induced breakdown symbiosis between host its dinoflagellate algae (that is, “bleaching”), one most devastating outcomes for reef ecosystems. Yet, bleaching tolerance has been observed in some coral species. This review provides an overview holobiont’s diversity, explores thermal relation their associated microorganisms, discusses hypothesis adaptive dysbiosis as a mechanism environmental adaptation, mentions potential solutions mitigate bleaching, suggests new research avenues. More specifically, we define succession three stages, where microbiota can (i) maintain essential functions homeostasis during stress and/or (ii) act buffer by favoring recruitment thermally tolerant Symbiodiniaceae species (adaptive dysbiosis), (iii) stressors exceed buffering capacity both microbial partners leading death.

Language: Английский

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The Lizard Gut Microbiome Changes with Temperature and Is Associated with Heat Tolerance

Applied and Environmental Microbiology, Journal Year: 2020, Volume and Issue: 86(17)

Published: June 24, 2020

Gut microbial communities affect their animal hosts in numerous ways, motivating investigations of the factors that shape gut microbiota and consequences variation for host traits. In this study, we tested effects increases environmental temperatures on fence lizards, a vertebrate ectotherm threatened by warming climates. By monitoring lizards microbes during an experimental temperature treatment, showed altered destabilized lizard microbiota. Moreover, measuring thermal performance at end experiment indicated composition was associated with tolerance. These results indicate can alter ectotherms suggest relationships between physiology natural populations.

Language: Английский

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Structure and stability of the coral microbiome in space and time

Scientific Reports, Journal Year: 2019, Volume and Issue: 9(1)

Published: May 1, 2019

Abstract Although it is well established that the microbial communities inhabiting corals perform key functions promote health and persistence of their hosts, little known about spatial structure temporal stability. We examined natural variability associated with six Caribbean coral species from three genera at four reef sites over one year. identified differences in community composition between persisted across space time, suggesting local host identity likely plays a dominant role structuring microbiome. However, we found dissimilarity increased geographical distance, which indicates regional processes such as dispersal limitation spatiotemporal environmental heterogeneity also influence composition. In addition, network analysis revealed strength varied genera, genus Acropora having most community. Overall, our results demonstrate despite high levels diversity, are characterized by signature microbiomes stable both time.

Language: Английский

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