Metabolic flexibility allows bacterial habitat generalists to become dominant in a frequently disturbed ecosystem

The ISME Journal, Год журнала: 2021, Номер 15(10), С. 2986 - 3004

Опубликована: Май 3, 2021

Abstract Ecological theory suggests that habitat disturbance differentially influences distributions of generalist and specialist species. While well-established for macroorganisms, this has rarely been explored microorganisms. Here we tested these principles in permeable (sandy) sediments, ecosystems with much spatiotemporal variation resource availability physicochemical conditions. Microbial community composition function were profiled intertidal subtidal sediments using 16S rRNA gene amplicon sequencing metagenomics, yielding 135 metagenome-assembled genomes. Community metabolic traits modestly varied sediment depth sampling date. Several taxa highly abundant prevalent all samples, including within the orders Woeseiales Flavobacteriales, classified as generalists; genome reconstructions indicate are metabolically flexible facultative anaerobes adapt to variability by different electron donors acceptors. In contrast, obligately anaerobic such sulfate reducers candidate lineage MBNT15 less overall only thrived more stable deeper sediments. We substantiated findings measuring three processes sediments; whereas generalist-associated sulfide oxidation fermentation occurred rapidly at depths, specialist-associated process reduction was restricted A manipulative experiment also confirmed generalists outcompete during simulated disturbance. Together, show become dominant dynamic environments, constrained specialists narrower niches. Thus, an ecological describing distribution patterns macroorganisms likely extends Such have broad biogeochemical ramifications.

Язык: Английский

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Microbial metabolites in the marine carbon cycle

Nature Microbiology, Год журнала: 2022, Номер 7(4), С. 508 - 523

Опубликована: Апрель 1, 2022

Язык: Английский

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Recent advances of algae-bacteria consortia in aquatic remediation

Critical Reviews in Environmental Science and Technology, Год журнала: 2022, Номер 53(3), С. 315 - 339

Опубликована: Март 20, 2022

Algae-bacteria consortia treatment has been found to be a promising method for the remediation of aqueous systems. Given scope previous reviews on algae-bacteria interactions, sections chemical signaling between algae and bacteria don't cover current knowledge gap, recent advances in explore full depth. Accordingly, specific aim this review was thoroughly screen summarize peer-reviewed literature (1) mechanism algal selection enrichment wastewater treatment; (2) interactions ecological niche environments; (3) bacteria; (4) using consortia; (5) advanced techniques combined with systems improved remediation. The main challenges future perspectives are proposed, including: (i) comprehensively establishing network bacteria, especially quorum sensing phycospheric interactions; (ii) developing detailed understanding exchange microbial species based molecular diffusion processes; (iii) tracking complex aquatic environments machine learning (ML), providing potential tool design beneficial customizable synthetic communities (iv) integrating (e.g., MBRs, UV photolysis biological activated carbon) systems, increasing sustainability applicability processes. Therefore, provides guidance insights development their application

Язык: Английский

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Algicidal Bacteria: A Review of Current Knowledge and Applications to Control Harmful Algal Blooms

Frontiers in Microbiology, Год журнала: 2022, Номер 13

Опубликована: Апрель 7, 2022

Interactions between bacteria and phytoplankton in aqueous ecosystems are both complex dynamic, with associations that range from mutualism to parasitism. This review focuses on algicidal interactions, which capable of controlling algal growth through physical association or the production compounds. While there is some evidence for bacterial control field, our understanding these interactions largely based laboratory culture experiments. Here, discussed, including specificity control, mechanisms activity, insights into chemical biochemical analysis interactions. The development compounds derived harmful blooms reviewed a focus environmentally friendly sustainable methods application. Potential avenues future research further application algicides presented.

Язык: Английский

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

FEMS Microbiology Reviews, Год журнала: 2023, Номер 47(2)

Опубликована: Март 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.

Язык: Английский

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Bacterial lifestyle switch in response to algal metabolites

eLife, Год журнала: 2023, Номер 12

Опубликована: Янв. 18, 2023

Unicellular algae, termed phytoplankton, greatly impact the marine environment by serving as basis of food webs and playing central roles in biogeochemical cycling elements. The interactions between phytoplankton heterotrophic bacteria affect fitness both partners. It is becoming increasingly recognized that metabolic exchange determines nature such interactions, but underlying molecular mechanisms remain underexplored. Here, we investigated for bacterial lifestyle switch, from coexistence to pathogenicity, Sulfitobacter D7 during its interaction with Emiliania huxleyi , a cosmopolitan bloom-forming phytoplankter. To unravel analyzed transcriptomes response exudates derived algae exponential growth stationary phase, which supported pathogenicity lifestyles, respectively. In pathogenic mode, upregulated flagellar motility diverse transport systems, presumably maximize assimilation E. -derived metabolites released algal cells upon cell death. Algal dimethylsulfoniopropionate (DMSP) was pivotal signaling molecule mediated transition supporting our previous findings. However, coexisting lifestyles were evident only presence additional metabolites. Specifically, discovered algae-produced benzoate promoted hindered DMSP-induced switch demonstrating important maintaining bacteria. We propose can sense physiological state host through changes composition, will determine interaction.

Язык: Английский

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Algal blooms in the ocean: hot spots for chemically mediated microbial interactions

Nature Reviews Microbiology, Год журнала: 2023, Номер 22(3), С. 138 - 154

Опубликована: Окт. 13, 2023

Язык: Английский

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Host control of the microbiome: Mechanisms, evolution, and disease

Science, Год журнала: 2024, Номер 385(6706)

Опубликована: Июль 18, 2024

Many species, including humans, host communities of symbiotic microbes. There is a vast literature on the ways these microbiomes affect hosts, but here we argue for an increased focus how hosts their microbiomes. Hosts exert control over symbionts through diverse mechanisms, immunity, barrier function, physiological homeostasis, and transit. These mechanisms enable to shape ecology evolution generate natural selection microbial traits that benefit host. Our result from perpetual tension between symbiont evolution, can leverage host's evolved abilities regulate microbiota prevent treat disease. The study will be central our ability both understand manipulate microbiotas better health.

Язык: Английский

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Metabolic interactions between microalgae and bacteria: Multifunctional ecological interplay and environmental applications

Algal Research, Год журнала: 2025, Номер 86, С. 103904 - 103904

Опубликована: Янв. 10, 2025

Язык: Английский

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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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