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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Unravelling microalgal-bacterial interactions in aquatic ecosystems through 16S rRNA gene-based co-occurrence networks

Scientific Reports, Год журнала: 2023, Номер 13(1)

Опубликована: Фев. 16, 2023

Abstract Interactions between microalgae and bacteria can directly influence the global biogeochemical cycles but majority of such interactions remain unknown. 16S rRNA gene-based co-occurrence networks have potential to help identify microalgal-bacterial interactions. Here, we used data from 10 Earth microbiome projects associations in aquatic ecosystems. A high degree clustering was observed modules, indicating densely connected neighbourhoods. Proteobacteria Bacteroidetes predominantly co-occurred with represented hubs most modules. Our results also indicated that species-specificity may be a characteristic microalgal associated microbiomes. Several previously known were recovered our network validating biologically meaningful inferred using this approach. range unknown recognised as co-occurrences Bacillariophyta uncultured Planctomycetes OM190 Deltaproteobacteria order NB1-j . Verrucomicrobia identified key associates due their frequent several taxa. Despite no clear taxonomic pattern, bacterial appeared functionally similar across different environments. To summarise, demonstrated hypothesis-generating framework guide more focused research on associations.

Язык: Английский

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Cross-Feeding between Filamentous Cyanobacteria and Symbiotic Bacteria Favors Rapid Photogranulation

Environmental Science & Technology, Год журнала: 2023, Номер 57(44), С. 16953 - 16963

Опубликована: Окт. 27, 2023

Photogranules are dense algal-bacterial aggregates used in aeration-free and carbon-negative wastewater treatment, wherein filamentous cyanobacteria (FC) essential components. However, little is known about the functional role of symbiotic bacteria photogranulation. Herein, we combined cyanobacterial isolation, reactor operation, multiomics analysis to investigate cyanobacterial-bacterial interaction during The addition FC inoculated sludge achieved a 1.4-fold higher granule size than control, aggregation capacity FC-dominant photogranules was closely related extracellular polysaccharide (PS) concentration (R = 0.86). Importantly, found that cross-feeding between for macromolecular PS synthesis at heart photogranulation substantially enhanced granular stability. Chloroflexi-affiliated intertwined with throughout promoted biosynthesis using partial nucleotide sugars produced by FC. Proteobacteria-affiliated were spatially close FC, highly expressed genes vitamin B1 B12 synthesis, contributing necessary cofactors promote proliferation. In addition, Bacteroidetes-affiliated degraded FC-derived carbohydrates influenced granules development. Our metabolic characterization identified shed light on critical interactions from viewpoint cross-feeding.

Язык: Английский

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Diverse interactions between bacteria and microalgae: A review for enhancing harmful algal bloom mitigation and biomass processing efficiency

Heliyon, Год журнала: 2024, Номер 10(17), С. e36503 - e36503

Опубликована: Авг. 24, 2024

The interactions between bacteria and microalgae play pivotal roles in resource allocation, biomass accumulation, nutrient recycling, species succession aquatic systems, offering ample opportunities to solve several social problems. escalating threat of harmful algal blooms (HABs) the environment lack cheap eco-friendly algal-biomass processing methods have been among main problems, demanding efficient sustainable solutions. In light this, application algicidal control HABs enhance has promoted past few decades as potentially suitable mechanisms those Hence, this comprehensive review aims explore diverse interaction modes microalgae, ranging from synergistic antagonistic, presents up-to-date information in-depth analysis their potential biotechnological applications, particularly controlling enhancing microalgal processing. For instance, studies revealed that can effectively inhibit growth

Язык: Английский

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Advances of high-throughput sequencing for unraveling biotechnological potential of microalgal-bacterial communities

Journal of Applied Phycology, Год журнала: 2024, Номер 36(4), С. 1901 - 1919

Опубликована: Май 18, 2024

Язык: Английский

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Microplastic and antibiotic proliferated the colonization of specific bacteria and antibiotic resistance genes in the phycosphere of Chlorella pyrenoidosa

Journal of Hazardous Materials, Год журнала: 2023, Номер 455, С. 131618 - 131618

Опубликована: Май 11, 2023

Язык: Английский

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The micro-ecological feature of colonies is a potential strategy for Phaeocystis globosa bloom formation

The Science of The Total Environment, Год журнала: 2024, Номер 946, С. 174134 - 174134

Опубликована: Июнь 21, 2024

Язык: Английский

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Formation and emergent dynamics of spatially organized microbial systems

Interface Focus, Год журнала: 2023, Номер 13(2)

Опубликована: Фев. 10, 2023

Spatial organization is the norm rather than exception in microbial world. While study of physiology has been dominated by studies well-mixed cultures, there now increasing interest understanding role spatial physiology, coexistence and evolution. Where studied, shown to influence all three these aspects. In this mini review perspective article, we emphasize that dynamics within spatially organized systems (SOMS) are governed feedbacks between local physico-chemical conditions, cell movement, These can give rise emergent dynamics, which need be studied through a combination spatio-temporal measurements mathematical models. We highlight initial formation SOMS their as two open areas investigation for future studies. will benefit from development model mimic natural ones terms species composition structure.

Язык: Английский

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Impact of host species on assembly, composition, and functional profiles of phycosphere microbiomes

mSystems, Год журнала: 2024, Номер 9(8)

Опубликована: Авг. 20, 2024

Microalgal microbiomes play vital roles in the growth and health of their host, however, composition functions remain only partially characterized, especially across microalgal phyla. In this study, a natural seawater microbiome was introduced to three distinct, axenic species microalgae, haptophyte

Язык: Английский

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Ammonifying and phosphorus-solubilizing function of Aliikangiella maris sp. nov. isolated from Phaeocystis globosa bloom and algal–bacterial interactions

Frontiers in Microbiology, Год журнала: 2025, Номер 16

Опубликована: Фев. 10, 2025

Phaeocystis globosa blooms are of escalating global concern due to their substantial ecological impacts on marine ecosystems. Emerging evidence indicates that algae–bacterial interactions play pivotal roles in shaping the ecology and evolution harmful algal blooms, although much this interplay remains unexplored. We successfully isolated propagated two novel bacterial strains from bloom. Two Gram-negative, non-spore-forming, motile, rod-shaped, yellow-pigmented bacteria were designated GXAS 306 T 311. According phenotypic, chemotaxonomic, phylogenomic, comparative genomic analyses data, 311 considered represent a species genus Aliikangiella . Genomic analysis revealed strain had many potential functions favorable for interacting with algae, further experimental confirmed ammonifying phosphorus-solubilizing function. Co-culture experiments showed significantly improved growth parameters typical P. (Pg293 PgV01), particularly under nitrogen or phosphorus deficiency. Specifically, cell densities observed increase by 19.6–86.0%, accompanied enhancements photosynthetic performance increases 8.0–30.6% F v /F m 10.9–27.9% r ETRmax Overall, these results shed light intricate relationships between its associated partners, which may influence characteristics algae.

Язык: Английский

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