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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Comparative Analyses of Vertebrate Gut Microbiomes Reveal Convergence between Birds and Bats

mBio, Journal Year: 2020, Volume and Issue: 11(1)

Published: Jan. 6, 2020

In this comprehensive survey of microbiomes >900 species, including 315 mammals and 491 birds, we find a striking convergence the birds animals that fly. nonflying mammals, diet short-term evolutionary relatedness drive microbiome, many microbial species are specific to particular kind mammal, but flying break pattern with microbes shared across different little correlation either or hosts. This finding suggests adaptation flight breaks long-held relationships between hosts their microbes.

Language: Английский

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Coral bacterial community structure responds to environmental change in a host-specific manner

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

Published: July 12, 2019

Abstract The global decline of coral reefs heightens the need to understand how corals respond changing environmental conditions. Corals are metaorganisms, so-called holobionts, and restructuring associated bacterial community has been suggested as a means holobiont adaptation. However, potential for communities across species in different environments not systematically investigated. Here we show that structure responds host-specific manner upon cross-transplantation between reef sites with differing levels anthropogenic impact. Acropora hemprichii harbors highly flexible microbiome differs each level impact which had transplanted. In contrast, Pocillopora verrucosa remains remarkably stable. Interestingly, unaffected sites, find microbiomes become indistinguishable from back-transplanted controls, suggesting ability recover. It unclear whether differences associate bacteria flexibly reflects adaptation mechanisms change.

Language: Английский

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An introduction to phylosymbiosis

Proceedings of the Royal Society B Biological Sciences, Journal Year: 2020, Volume and Issue: 287(1922), P. 20192900 - 20192900

Published: March 4, 2020

Phylosymbiosis was recently formulated to support a hypothesis-driven framework for the characterization of new, cross-system trend in host-associated microbiomes. Defining phylosymbiosis as ‘microbial community relationships that recapitulate phylogeny their host’, we review relevant literature and data last decade, emphasizing frequently used methods regular patterns observed analyses. Quantitative is provided by statistical evaluating higher microbiome variation between host species than within species, topological similarities dendrogram, positive association genetic beta diversity. Significant degrees are prevalent, but not universal, microbiomes plants animals from terrestrial aquatic habitats. Consistent with natural selection shaping phylosymbiosis, transplant experiments demonstrate reduced performance and/or fitness upon host–microbiome mismatches. Hybridization can also disrupt phylosymbiotic cause hybrid pathologies. The pervasiveness carries several important implications advancing knowledge eco-evolutionary processes impact interactions future applications precision microbiology. Important steps will be examine beyond bacterial communities, apply evolutionary modelling an increasingly sophisticated understanding unravel microbial mechanisms contribute pattern. This serves gateway experimental, conceptual quantitative themes outlines opportunities ripe investigation diversity disciplines.

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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The coral microbiome: towards an understanding of the molecular mechanisms of coral–microbiota interactions

FEMS Microbiology Reviews, Journal Year: 2023, Volume and Issue: 47(2)

Published: March 1, 2023

Corals live in a complex, multipartite symbiosis with diverse microbes across kingdoms, some of which are implicated vital functions, such as those related to resilience against climate change. However, knowledge gaps and technical challenges limit our understanding the nature functional significance complex symbiotic relationships within corals. Here, we provide an overview complexity coral microbiome focusing on taxonomic diversity functions well-studied cryptic microbes. Mining literature indicate that while corals collectively harbour third all marine bacterial phyla, known symbionts antagonists represent minute fraction this these taxa cluster into select genera, suggesting selective evolutionary mechanisms enabled bacteria gain niche holobiont. Recent advances research aimed at leveraging manipulation increase coral's fitness help mitigate heat stress-related mortality discussed. Then, insights potential through microbiota can communicate modify host responses examined by describing recognition patterns, microbially derived epigenome effector proteins gene regulation. Finally, power omics tools used study highlighted emphasis integrated host-microbiota multiomics framework understand underlying during change-driven dysbiosis.

Language: Английский

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The coral microbiome in sickness, in health and in a changing world

Nature Reviews Microbiology, Journal Year: 2024, Volume and Issue: 22(8), P. 460 - 475

Published: March 4, 2024

Language: Английский

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Triggers, cascades, and endpoints: connecting the dots of coral bleaching mechanisms

Biological reviews/Biological reviews of the Cambridge Philosophical Society, Journal Year: 2024, Volume and Issue: 99(3), P. 715 - 752

Published: Jan. 12, 2024

ABSTRACT The intracellular coral–dinoflagellate symbiosis is the engine that underpins success of coral reefs, one most diverse ecosystems on planet. However, breakdown and loss microalgal symbiont (i.e. bleaching) due to environmental changes are resulting in rapid degradation reefs globally. There an urgent need understand cellular physiology bleaching at mechanistic level help develop solutions mitigate reef crisis. Here, unprecedented scope, we present novel models integrate putative mechanisms within a common framework according triggers (initiators bleaching, e.g. heat, cold, light stress, hypoxia, hyposalinity), cascades (cellular pathways, photoinhibition, unfolded protein response, nitric oxide), endpoints (mechanisms loss, apoptosis, necrosis, exocytosis/vomocytosis). supported by direct evidence from cnidarian systems, indirectly through comparative evolutionary analyses non‐cnidarian systems. With this approach, new have been established between initiated different triggers. In particular, provide insights into poorly understood connections highlight role mechanism i.e. ‘symbiolysosomal digestion’, which symbiophagy. This review also increases approachability for specialists non‐specialists mapping vast landscape atlas comprehensible detailed models. We then discuss major knowledge gaps how future research may improve understanding cascade pathways (endpoints).

Language: Английский

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