Ontology highlight
ABSTRACT:
PROVIDER: PRJNA1321199 | ENA |
REPOSITORIES: ENA
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Project description:Two synthetic bacterial consortia (SC) composed by bacterial strains isolated from a natural phenanthrene-degrading consortium (CON), Sphingobium sp. AM, Klebsiella aerogenes B, Pseudomonas sp. Bc-h and T, Burkholderia sp. Bk and Inquilinus limosus Inq were grown in LMM supplemented with 200 mg/L of phenanthrene (PHN) during 72 hours in triplicate.
2021-09-09 | PXD022882 | Pride
Project description:Anaerobic ammonium oxidation (anammox) emerges as a sustainable solution for nitrogen removal in sewage, but it is susceptible to stress induced by xenobiotics that are ubiquitous in sewage. Despite wide recognition of this critical issue, a comprehensive understanding of the molecular and ecological mechanisms underlying the response of anammox consortia to xenobiotic stress remain elusive. Here, we integrated multi-omics approaches with biofilm reactor operation to unravel how bisphenol A (BPA, a representative xenobiotic) perturbs anammox consortia across environmentally relevant concentrations. We show that anammox consortia tolerated low BPA levels (0.2–2 mg/L), where nitrogen removal efficiency transiently declined and subsequently recovered, aided by a 30.9% increase in quorum-sensing (QS) signal C6-HSL. By contrast, exposure to ≥10 mg/L BPA caused severe and irreversible inhibition, with total inorganic nitrogen removal dropping to 17.8%. High BPA concentrations suppressed QS signaling, intensified oxidative stress, and compromised membrane integrity, leading to enzymatic inhibition and transcriptional repression of anammox functional genes. Multi-omics evidence revealed that BPA stress also promoted horizontal transfer of the BPA-degrading gene bisdA via extracellular DNA, suggesting a new community-level adaptive mechanism. Metagenomic and metabolomic analyses further indicated BPA-driven restructuring of microbial networks, namely high BPA levels favored denitrifiers and BPA degraders while suppressing anammox bacteria, and triggered metabolic reprogramming toward xenobiotic degradation at the expense of nucleotide and amino acid biosynthesis. Together, these findings reveal a multifaceted collapse mechanism of anammox under BPA stress, providing a mechanistic basis for designing strategies to safeguard microbial nitrogen removal in xenobiotic-laden wastewaters.
2026-03-27 | MTBLS14153 | MetaboLights
Project description:Synthetic microbial consortia represent a new frontier for synthetic biology given that they can solve more complex problems than monocultures. However, most attempts to co-cultivate these artificial communities fail because of the ‘‘winner-takes-all’’ in nutrients competition. In soil, multiple species can coexist with a spatial organization. Inspired by nature, here we show that an engineered spatial segregation method can assemble stable consortia with both flexibility and precision. We create microbial swarmbot consortia (MSBC) by encapsulating subpopulations with polymeric microcapsules. The crosslinked structure of microcapsules fences microbes, but allows the transport of small molecules and proteins. MSBC method enables the assembly of various synthetic communities and the precise control over the subpopulations. These capabilities can readily modulate the division of labor and communication. Our work integrates the synthetic biology and material science to offer new insights into consortia assembly and server as foundation to diverse applications from biomanufacturing to engineered photosynthesis.
2022-07-04 | PXD034417 | Pride
Project description:Microbial consortia consist of a multitude of prokaryotic and eukaryotic microorganisms. Their interaction is critical for the functioning of ecosystems. Until now, there is limited knowledge about the communication signals determining the interaction between bacteria and fungi and how they influence microbial consortia. Here, we discovered that bacterial low molecular weight arginine-derived polyketides trigger the production of distinct natural products in fungi. These compounds are produced by actinomycetes found on all continents except Antarctica and are characterized by an arginine-derived positively charged group linked to a linear or cyclic polyene moiety. Producer bacteria can be readily isolated from soil as well as fungi that decode the signal and respond with the biosynthesis of natural products. Both arginine-derived polyketides and the compounds produced by fungi in response shape microbial interactions.
2023-06-16 | PXD033242 | Pride
Project description:Objective to investigate the functional gene expressions of specialized microbial consortia in a perchlorate-reducing bioreactor.
2026-02-21 | PXD074710 |
Project description:FHMs were exposed to three concentrations of phenanthrene (average measured 29, 287, 1006 ng/L) and fish were sampled after 48hr. There were 20 samples analyzed 5) control liver tissues 5) 29 ng/L phenanthrene exposed liver tissues 5) 287 ng/L phenanthrene exposed liver tissues 5)1006 ng/L phenanthrene exposed liver tissues. There was a total of 20 microarrays processed. In this study, gene expression to a 'dose-response' was investigated after in vivo exposure of fish to phenanthrene.
2013-08-27 | E-GEOD-44839 | biostudies-arrayexpress
Project description:Microbial coexistence in complex communities requires mechanisms that minimize competition and optimize resource use. Here, we show that bacteria modulate protein abundance in response to specific community members, reducing functional redundancy and promoting metabolic complementarity. Using synthetic gut-derived consortia exposed to distinct carbon sources, we systematically profiled proteomic responses of individual species across isolate, pairwise, and four-member communities. We found that biotic interactions, rather than abiotic conditions, were the dominant drivers of proteomic variation. These interactions led to reproducible, partner-specific expression shifts that significantly reduced functional overlap and were frequently associated with increased community productivity. Our findings reveal that microbes dynamically reshape their realized niche through protein abundance plasticity, enabling them to partition metabolic space and stabilize community structure. This study provides a mechanistic link between microbial interaction networks, regulatory flexibility, and coexistence, offering a generalizable framework for understanding and engineering functional microbial ecosystems.
2026-02-19 | PXD071838 | Pride
Project description:Microbial coexistence in complex communities requires mechanisms that minimize competition and optimize resource use. Here, we show that bacteria modulate protein abundance in response to specific community members, reducing functional redundancy and promoting metabolic complementarity. Using synthetic gut-derived consortia exposed to distinct carbon sources, we systematically profiled proteomic responses of individual species across isolate, pairwise, and four-member communities. We found that biotic interactions, rather than abiotic conditions, were the dominant drivers of proteomic variation. These interactions led to reproducible, partner-specific expression shifts that significantly reduced functional overlap and were frequently associated with increased community productivity. Our findings reveal that microbes dynamically reshape their realized niche through protein abundance plasticity, enabling them to partition metabolic space and stabilize community structure. This study provides a mechanistic link between microbial interaction networks, regulatory flexibility, and coexistence, offering a generalizable framework for understanding and engineering functional microbial ecosystems.
2026-02-19 | PXD073583 | Pride
Project description:au10-04_phytoremediation; impact of sucrose on the tolerance of phenanthrene Effect of phenanthrene and sucrose - We test 3 conditions plants non-treated (C or t0), plants treated with phenanthrene (P) and plants tread with phenanthrene and sucrose (S). The plants were grown on MS/2 media for 17 days and then transferred on the corresponding condition. We took a sample of 30 plants at different times (0, 30 min, 2h, 4h, 8h and 24h).
2013-06-28 | GSE48181 | GEO