Extending the natural adaptive capacity of coral holobionts

Nature Reviews Earth & Environment, Journal Year: 2021, Volume and Issue: 2(11), P. 747 - 762

Published: Oct. 12, 2021

Language: Английский

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Coral microbiome manipulation elicits metabolic and genetic restructuring to mitigate heat stress and evade mortality

Science Advances, Journal Year: 2021, Volume and Issue: 7(33)

Published: Aug. 13, 2021

Probiotics mitigate post-heat stress disorder, preventing coral mortality.

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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Coral Probiotics: Premise, Promise, Prospects

Annual Review of Animal Biosciences, Journal Year: 2020, Volume and Issue: 9(1), P. 265 - 288

Published: Dec. 15, 2020

The use of Beneficial Microorganisms for Corals (BMCs) has been proposed recently as a tool the improvement coral health, with knowledge in this research topic advancing rapidly. BMCs are defined consortia microorganisms that contribute to health through mechanisms include (a) promoting nutrition and growth, (b) mitigating stress impacts toxic compounds, (c) deterring pathogens, (d) benefiting early life-stage development. Here, we review current BMC approach outline studies have proven its potential increase resilience stress. We revisit expand list putative beneficial associated corals their mechanismsthat facilitate improved host performance. Further, discuss caveats bottlenecks affecting efficacy close by focusing on next steps application at larger scales can improve outcomes reefs globally.

Language: Английский

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Coral bleaching patterns are the outcome of complex biological and environmental networking

Global Change Biology, Journal Year: 2019, Volume and Issue: 26(1), P. 68 - 79

Published: Oct. 16, 2019

Abstract Continued declines in coral reef health over the past three decades have been punctuated by severe mass bleaching‐induced mortality events that grown intensity and frequency under climate change. Intensive global research efforts therefore persistently focused on bleaching phenomena to understand where corals bleach, when why—resulting a large—yet still somewhat patchy—knowledge base. Particularly catastrophic 5 years catalyzed calls for more diverse set of management tools, extending far beyond mitigation protection, also include aggressive interventions. However, effectiveness these various tools now rests rapidly assimilating our knowledge base into integrated frameworks. Here, we consider how intensive has established basis complex biological environmental networks, which together regulate outcomes severity. We discuss enough scaffold conceptual frameworks underpinning susceptibility, but new are urgently required translate this an operational system informing—and testing—bleaching outcomes. Specifically, adopting network models can fully describe predict metabolic functioning holobionts, is regulated doses interactions among factors. Identifying gaps limiting operation such logical step immediately guide prioritize future experiments observations. at time‐critical point implement capacity resolve patterns emerge from biological–environmental so effectively inform evolving ecological social adaptation aimed securing reefs.

Language: Английский

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Multiple impacts of microplastics can threaten marine habitat-forming species

Communications Biology, Journal Year: 2021, Volume and Issue: 4(1)

Published: March 30, 2021

Abstract Microplastics are recognised as a potential global threat to marine ecosystems, but the biological mechanisms determining their impact on life still largely unknown. Here, we investigated effects of microplastics red coral, long-lived habitat-forming organism belonging Corallium genus, which is present at almost all latitudes from shallow-water deep-sea habitats. When exposed microplastics, corals preferentially ingest polypropylene, with multiple effects, feeding impairment mucus production and altered gene expression. can alter coral microbiome directly indirectly by causing tissue abrasions that allow proliferation opportunistic bacteria. These suggest concentrations in some areas predicted for most oceans coming decades, ultimately cause death. Other suspension-feeding species likely subjected similar impacts, may act synergistically climate-driven events primarily responsible mass mortalities.

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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Coral holobiont cues prime Endozoicomonas for a symbiotic lifestyle

The ISME Journal, Journal Year: 2022, Volume and Issue: 16(8), P. 1883 - 1895

Published: April 20, 2022

Abstract Endozoicomonas are prevalent, abundant bacterial associates of marine animals, including corals. Their role in holobiont health and functioning, however, remains poorly understood. To identify potential interactions within the coral holobiont, we characterized novel isolate marisrubri sp. nov. 6c assessed its transcriptomic proteomic response to tissue extracts native host, Red Sea Acropora humilis. We show that stimulated differential expression genes putatively involved symbiosis establishment via modulation host immune by E. 6c, such as for flagellar assembly, ankyrins, ephrins, serpins. Proteome analyses revealed upregulated vitamin B1 B6 biosynthesis glycolytic processes cues. Our results suggest priming a symbiotic lifestyle involves immunity exchange essential metabolites with other members. Consequently, may play an important nutrient cycling therefore contribute health, acclimatization, adaptation.

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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Colocalization and potential interactions of Endozoicomonas and chlamydiae in microbial aggregates of the coral Pocillopora acuta

Science Advances, Journal Year: 2023, Volume and Issue: 9(20)

Published: May 17, 2023

Corals are associated with a variety of bacteria, which occur in the surface mucus layer, gastrovascular cavity, skeleton, and tissues. Some tissue-associated bacteria form clusters, termed cell-associated microbial aggregates (CAMAs), poorly studied. Here, we provide comprehensive characterization CAMAs coral Pocillopora acuta. Combining imaging techniques, laser capture microdissection, amplicon metagenome sequencing, show that (i) located tentacle tips may be intracellular; (ii) contain Endozoicomonas (Gammaproteobacteria) Simkania (Chlamydiota) bacteria; (iii) vitamins to its host use secretion systems and/or pili for colonization aggregation; (iv) distinct, but adjacent, CAMAs; (v) receive acetate heme from neighboring Endozoicomonas. Our study provides detailed insight into endosymbionts, thereby improving our understanding physiology health providing important knowledge reef conservation climate change era.

Language: Английский

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