Exploring Bacterial Diversity in Acropora pharaonis: Implications for Coral Health and Growth Anomalies.

Microbial Pathogenesis, Год журнала: 2025, Номер unknown, С. 107616 - 107616

Опубликована: Апрель 1, 2025

Язык: Английский

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Phototrophic bacteria as potential probiotics for corals

npj Biodiversity, Год журнала: 2025, Номер 4(1)

Опубликована: Апрель 29, 2025

Coral-associated microorganisms provide crucial nutritional, protective, and developmental benefits, yet many functional traits remain unexplored. Phototrophic bacteria may enhance coral nutrition reduce oxidative stress during bleaching via photosynthesis antioxidant production. Despite this potential, their role in the holobiont's energy budget heat resilience is understudied. This review explores potential of phototrophic to health under environmental stress.

Язык: Английский

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Jellyfish blooms through the microbial lens: temporal changes, cross-species and Jellyfish-water comparisons

Environmental Microbiome, Год журнала: 2025, Номер 20(1)

Опубликована: Май 9, 2025

Язык: Английский

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An intranuclear bacterial parasite of deep-sea mussels expresses apoptosis inhibitors acquired from its host

Nature Microbiology, Год журнала: 2024, Номер unknown

Опубликована: Сен. 6, 2024

Язык: Английский

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Influence of reef habitat on coral microbial associations

Environmental Microbiology Reports, Год журнала: 2024, Номер 16(6)

Опубликована: Ноя. 8, 2024

Corals have complex symbiotic associations that can be influenced by the environment. We compare dinoflagellate (family: Symbiodiniaceae) and microbiome of five scleractinian coral species from three different reef habitats in Palau, Micronesia. Although pH temperature corresponded with specific host-Symbiodiniaceae common to nearshore offshore habitats, bacterial community dissimilarity analyses indicated minimal influence these factors on microbial membership for corals Coelastrea aspera, Psammocora digitata, Pachyseris rugosa. However, colonies sampled close human development exhibited greater differences diversity compared habitat Montipora foliosa, Pocillopora acuta, while also showing less consistency Symbiodiniaceae associations. These findings indicate location has communities comprising holobiont provide important considerations conservation communities, especially island nations increasing populations development.

Язык: Английский

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Deep quantitative proteomics of North American Pacific coast star tunicate (Botryllus schlosseri)

PROTEOMICS, Год журнала: 2024, Номер 24(15)

Опубликована: Фев. 24, 2024

Botryllus schlosseri, is a model marine invertebrate for studying immunity, regeneration, and stress-induced evolution. Conditions validating its predicted proteome were optimized using nanoElute® 2 deep-coverage LCMS, revealing up to 4930 protein groups 20,984 unique peptides per sample. Spectral libraries generated filtered remove interferences, low-quality transitions, only retain proteins with >3 peptides. The resulting DIA assay library enabled label-free quantitation of 3426 represented by 22,593 Quantitative comparisons single systems from laboratory-raised two field-collected populations revealed (1) more in the population, (2) high/low individual variabilities each population. DNA repair/replication, ion transport, intracellular signaling processes distinct laboratory-cultured colonies. Spliceosome Wnt least variable (highly functionally constrained) all populations. In conclusion, we present first colonial tunicate's deep quantitative analysis, identifying functional clusters associated laboratory conditions, different habitats, strong versus relaxed abundance constraints. These results empower research on B. schlosseri proteomics resources enable molecular phenotyping changes transfer situ ex vivo vitro culture conditions.

Язык: Английский

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Coral microbiomes are structured by environmental gradients in deep waters

Environmental Microbiome, Год журнала: 2024, Номер 19(1)

Опубликована: Июнь 10, 2024

Язык: Английский

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Distinct modes of holobiont specialization among cryptic coral lineages

bioRxiv (Cold Spring Harbor Laboratory), Год журнала: 2024, Номер unknown

Опубликована: Июль 6, 2024

Abstract As ocean warming threatens reefs worldwide, identifying corals with adaptations to higher temperatures is critical for conservation. Genetically distinct but morphologically similar ( i.e., cryptic) coral populations can be specialized extreme habitats and thrive under stressful conditions. These often associate locally beneficial microbiota (Symbiodiniaceae photobionts bacteria), clouding interpretation of the drivers thermal tolerance. Here, we leverage a holobiont (massive Porites ) high host-partner fidelity investigate adaptive variation across classic (“typical” conditions) characterized by light attenuation. We uncovered three cryptic lineages that exhibit limited micro-morphological variation; one lineage dominated (L1), had more even distributions (L2), third was restricted (L3). Two were closely related ∼4300 km away, suggesting these are widespread. All harbored Cladocopium C15 photobionts, strain-level compositions differed among reef types. L1 associated bacteria in each type, whereas L2 relatively stable associations. L3 hosted unique photobiont strains, signaling host-photobiont fidelity. Analysis harvesting capacity tolerance revealed key underpinning survival habitats. highest absorption efficiency lowest tolerance, it specialist. showing an intermediate habitat generalism, potentially explaining how survives well both findings reveal diverging strategies cope Resolving understanding populations; uncovering thermally-tolerant holobionts strengthen our evolution symbiosis, support global conservation restoration efforts.

Язык: Английский

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Microscale sampling of the coral gastrovascular cavity reveals a gut-like microbial community

Animal Microbiome, Год журнала: 2024, Номер 6(1)

Опубликована: Окт. 8, 2024

Animal guts contain numerous microbes, which are critical for nutrient assimilation and pathogen defence. While corals other Cnidaria lack a true differentiated gut, they possess semi-enclosed gastrovascular cavities (GVCs), where vital processes such as digestion, reproduction symbiotic exchanges take place. The microbiome harboured in GVCs is therefore likely key to holobiont fitness, but remains severely understudied due challenges of working these small compartments. Here, we developed minimally invasive methodologies sample the GVC coral polyps characterise microbial communities within. We used glass capillaries, low dead volume microneedles, or nylon microswabs individual from six species corals, then applied low-input DNA extraction microliter samples. Microsensor measurements revealed anoxic hypoxic micro-niches, persist even under prolonged illumination with saturating irradiance. These niches enriched putatively microaerophilic facultatively anaerobic taxa, Epsilonproteobacteria. Some core taxa found Lobophyllia hemprichii Great Barrier Reef were also detected conspecific colonies held aquaria, indicating that associations unlikely be transient. Our findings suggest chemically microbiologically similar gut higher Metazoa. Given importance microbiomes mediating animal health, harnessing "gut microbiome" may foster novel active interventions aimed at increasing resilience reefs climate crisis.

Язык: Английский

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Insights into the occurrence of phylosymbiosis and co-phylogeny in the holobionts of octocorals from the Mediterranean Sea and Red Sea

Animal Microbiome, Год журнала: 2024, Номер 6(1)

Опубликована: Ноя. 4, 2024

Corals are the foundational species of coral reefs and coralligenous ecosystems. Their success has been linked to symbioses with microorganisms, a host its symbionts therefore considered single entity, called holobiont. This suggests that there may be evolutionary links between corals their microbiomes. While is evidence phylosymbiosis in scleractinian hexacorals, little known about holobionts Alcyonacean octocorals. 16S rRNA gene amplicon sequencing revealed differences diversity composition bacterial communities associated octocorals collected from mesophotic zones Mediterranean Red Seas. The low consistent dominance Endozoicomonadaceae and/or Spirochaetaceae suggest these have shared history microbiota. Phylosymbiotic signals were indeed detected cophylogeny associations several strains, particularly those belonging or Spirochaetaceae, identified. Conversely, phylosymbiotic patterns not evident Sea octocorals, likely due high taxonomic microbiota, but certain was observed. Noteworthy Endozoicomonadaceae, suggesting plausible link warrants further investigations uncover potential underlying patterns. Overall, our findings emphasize importance symbiosis significance exploring host-microbiome interactions ecosystems for comprehensive understanding coral-microbiome history.

Язык: Английский

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