Inherent differential microbial assemblages and functions associated with corals exhibiting different thermal phenotypes

Science Advances, Год журнала: 2025, Номер 11(3)

Опубликована: Янв. 17, 2025

Certain coral individuals exhibit enhanced resistance to thermal bleaching, yet the specific microbial assemblages and their roles in these phenotypes remain unclear. We compared communities of bleaching–resistant (TBR) bleaching–sensitive (TBS) corals using metabarcoding metagenomics. Our multidomain approach revealed stable distinct compositions between phenotypes. Notably, TBR were inherently enriched with eukaryotes, particularly Symbiodiniaceae, linked photosynthesis, biosynthesis antibiotic antitumor compounds glycosylphosphatidylinositol-anchor proteins, crucial for cell wall regulation metabolite exchange. In contrast, TBS dominated by bacterial metabolic genes related nitrogen, amino acid, lipid metabolism. The inherent microbiome differences corals, already observed before stress, point holobiont associated bleaching resistance, offering insights into mechanisms underlying response climate-induced stress.

Язык: Английский

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Advances in Microbiome Research for Animal Health

Annual Review of Animal Biosciences, Год журнала: 2020, Номер 9(1), С. 289 - 311

Опубликована: Дек. 15, 2020

Host-associated microbiomes contribute in many ways to the homeostasis of metaorganism. The microbiome's contributions range from helping provide nutrition and aiding growth, development, behavior protecting against pathogens toxic compounds. Here we summarize current knowledge diversity importance microbiome animals, using representative examples wild domesticated species. We demonstrate how beneficial ecological roles animal-associated can be generally grouped into well-defined main categories microbe-based alternative treatments applied mitigate problems for both economic conservation purposes crucial about host-microbiota symbiotic interactions. suggest a Customized Combination Microbial-Based Therapies promote animal health practice sustainable husbandry. also discuss connections threats associated with biodiversity loss, microorganism extinction, emerging diseases, such as COVID-19 pandemic.

Язык: Английский

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Defining Coral Bleaching as a Microbial Dysbiosis within the Coral Holobiont

Microorganisms, Год журнала: 2020, Номер 8(11), С. 1682 - 1682

Опубликована: Окт. 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.

Язык: Английский

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Coral environmental memory: causes, mechanisms, and consequences for future reefs

Trends in Ecology & Evolution, Год журнала: 2021, Номер 36(11), С. 1011 - 1023

Опубликована: Авг. 5, 2021

Язык: Английский

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Contrasting heat stress response patterns of coral holobionts across the Red Sea suggest distinct mechanisms of thermal tolerance

Molecular Ecology, Год журнала: 2021, Номер 30(18), С. 4466 - 4480

Опубликована: Авг. 3, 2021

Corals from the northern Red Sea, in particular Gulf of Aqaba (GoA), have exceptionally high bleaching thresholds approaching >5℃ above their maximum monthly mean (MMM) temperatures. These elevated are thought to be due historical selection, as corals passed through warmer Southern Sea during recolonization Arabian Sea. To test this hypothesis, we determined thermal tolerance GoA versus central (CRS) Stylophora pistillata using multi-temperature acute stress assays determine thresholds. Relative and CRS were indeed similar (~7℃ MMM). However, absolute on average 3℃ those corals. explore molecular underpinnings, gene expression microbiome response coral holobiont. Transcriptomic responses differed markedly, with a strong symbiotic algae remarkably muted colonies. Concomitant this, algal genes showed temperature-induced corals, while exhibiting fixed (front-loading) Bacterial community composition changed dramatically under heat stress, whereas displayed stable assemblages. We interpret that resilient population tipping point contrast pattern consistently resistance cannot further attune. Such differences suggest distinct mechanisms may affect populations ocean warming.

Язык: Английский

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Fast and pervasive transcriptomic resilience and acclimation of extremely heat-tolerant coral holobionts from the northern Red Sea

Proceedings of the National Academy of Sciences, Год журнала: 2021, Номер 118(19)

Опубликована: Май 3, 2021

Corals from the northern Red Sea and Gulf of Aqaba exhibit extreme thermal tolerance. To examine underlying gene expression dynamics, we exposed

Язык: Английский

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Insights into the Cultured Bacterial Fraction of Corals

mSystems, Год журнала: 2021, Номер 6(3)

Опубликована: Июнь 22, 2021

Our paper is the first study to synthesize currently available but decentralized data of cultured microbes associated with corals. We were able collate 3,055 isolates across a number published studies and unpublished collections from various laboratories researchers around world.

Язык: Английский

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Experimental temperatures shape host microbiome diversity and composition

Global Change Biology, Год журнала: 2022, Номер 29(1), С. 41 - 56

Опубликована: Окт. 17, 2022

Global climate change has led to more extreme thermal events. Plants and animals harbour diverse microbial communities, which may be vital for their physiological performance help them survive stressful climatic conditions. The extent microbiome communities in response warming or cooling important predicting host under global change. Using a meta-analysis of 1377 microbiomes from 43 terrestrial aquatic species, we found decrease the amplicon sequence variant-level phylogenetic diversity alteration composition both experimental cooling. Microbiome beta dispersion was not affected by temperature changes. We showed that habitat factors than biological traits. In particular, organisms-especially marine habitats-experienced greater depletion cold conditions, compared hosts. Exposure involving sudden long static shift associated with loss, but this reduction attenuated prior-experimental lab acclimation when ramped regime (i.e., warming) used. Microbial differential abundance co-occurrence network analyses revealed several potential indicator bacterial classes hosts heated environments on different biome levels. Overall, our findings improve understanding impact changes animal plant structures across range habitats. next step is link these measures fitness, as well community functions, determine whether can buffer some species against thermally variable world.

Язык: Английский

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Greater functional diversity and redundancy of coral endolithic microbiomes align with lower coral bleaching susceptibility

The ISME Journal, Год журнала: 2022, Номер 16(10), С. 2406 - 2420

Опубликована: Июль 15, 2022

Abstract The skeleton of reef-building coral harbors diverse microbial communities that could compensate for metabolic deficiencies caused by the loss algal endosymbionts, i.e., bleaching. However, it is unknown to what extent endolith taxonomic diversity and functional potential might contribute thermal resilience. Here we exposed Goniastrea edwardsi Porites lutea, two common corals from central Red Sea a 17-day long heat stress. Using hyperspectral imaging, marker gene/metagenomic sequencing, NanoSIMS, characterized their endolithic microbiomes together with 15N 13C assimilation skeletal compartments: band directly below tissue deep skeleton. bleaching-resistant G. was associated greater redundancy exhibited lower N C than endoliths in bleaching-sensitive P. lutea. We propose primary productivity can be attributed dominance chemolithotrophs. Lower production within may prevent unbalanced nutrient fluxes tissues under stress, thereby preserving nutrient-limiting conditions characteristic stable coral-algal symbiosis. Our findings link microbiome structure function bleaching susceptibility, providing new avenues understanding eventually mitigating reef loss.

Язык: Английский

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Horizon scanning the application of probiotics for wildlife

Trends in Microbiology, Год журнала: 2023, Номер 32(3), С. 252 - 269

Опубликована: Сен. 25, 2023

The provision of probiotics benefits the health a wide range organisms, from humans to animals and plants. Probiotics can enhance stress resilience endangered many which are critically threatened by anthropogenic impacts. use so-called 'probiotics for wildlife' is nascent application, field needs reflect on standards its development, testing, validation, risk assessment, deployment. Here, we identify main challenges this emerging intervention provide roadmap validate effectiveness wildlife probiotics. We cover essential inert negative controls in trials investigation probiotic mechanisms action. also suggest alternative microbial therapies that could be tested parallel with application. Our recommendations align approaches used humans, aquaculture, plants concept wildlife.

Язык: Английский

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