{
  "abstract": "Microbial fuel cells (MFCs) are increasingly explored for soil remediation, yet the microbial ecological responses associated with conductive-material interfaces and closed-circuit operation remain incompletely understood. Using three experimental setups—a non-electrode anaerobic control (AT), an open-circuit conductive-material treatment (TO), and a closed-circuit treatment (TC)—we examined bacterial community composition, assembly processes, targeted functional-gene profiles, and exploratory co-occurrence patterns. The TO treatment showed a more highly connected exploratory network and slightly lower diversity within the targeted functional-gene panel than AT. The TC treatment showed a higher estimated relative contribution of deterministic processes than TO, although stochastic processes remained dominant in all treatments. TC was also characterized by several electroactive-associated taxa, including Geobacteraceae and Anaeromyxobacter , and by higher 16S-normalized relative abundances of several sulfur-cycling genes. These results suggest that the introduction of conductive materials and closed-circuit operation were associated with different bacterial community and targeted functional-gene responses. Because the TO–AT contrast includes both electrodes and carbon fibers, reactor-level replication was limited, and electrochemical output was not continuously quantified, the findings should be interpreted as exploratory associations rather than direct evidence of current-driven metabolic specialization. This study provides testable hypotheses for future bioelectrochemical soil-remediation experiments with greater reactor replication, electrochemical monitoring, and process-rate measurements.",
  "abstract_shown": true,
  "affiliations": [
    "College of Biological Sciences and Technology, Taiyuan Normal University",
    "Soil Health Laboratory in Shanxi Province",
    "Shanxi Key Laboratory of Earth Surface Processes and Resource Ecology Security in Fenhe River Basin, Taiyuan Normal University",
    "Institute of Eco-environment and Industrial Technology, Shanxi Agricultural University"
  ],
  "article_type": "research article",
  "arxiv": null,
  "author_total": 3,
  "authors": [
    {
      "affs": [
        0,
        1,
        2,
        3
      ],
      "name": "Pengyu Zhao"
    },
    {
      "affs": [
        0,
        2
      ],
      "name": "Shuhui Zhang"
    },
    {
      "affs": [
        0,
        2
      ],
      "name": "Xiaodong Zhao"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/cvqqa3c8ajn6a.bib",
  "cited_by": 0,
  "doi": "10.3389/fmicb.2026.1815770",
  "fulltext_url": "https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13690965/?tool=EBI",
  "id": "cvqqa3c8ajn6a",
  "issns": [
    "1664-302X"
  ],
  "landing_url": "https://www.frontiersin.org/articles/10.3389/fmicb.2026.1815770/full",
  "language": "eng",
  "licence": "CC-BY-4.0",
  "licence_label": "CC BY 4.0",
  "licence_source": "article",
  "licence_url": "https://creativecommons.org/licenses/by/4.0/",
  "metadata_licence": null,
  "native_subjects": [
    [
      "openalex",
      "2305|Microbial Fuel Cells and Bioremediation"
    ]
  ],
  "openalex": "W7221133919",
  "pdf_url": "https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13690965/pdf/?tool=EBI",
  "pmcid": "PMC13690965",
  "pmid": null,
  "published": "2026-10-09",
  "publisher": "Frontiers Media SA",
  "ris": "https://research.draconitic.com/paper/cvqqa3c8ajn6a.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:19:12Z",
      "native_id": "10.3389/fmicb.2026.1815770",
      "source": "crossref",
      "url": "https://www.frontiersin.org/articles/10.3389/fmicb.2026.1815770/full"
    },
    {
      "first_seen": "2026-10-30T12:19:59Z",
      "native_id": "PMC:PMC13690965",
      "source": "europepmc",
      "url": "https://europepmc.org/article/PMC/PMC13690965"
    }
  ],
  "subjects": [
    {
      "field": "earth",
      "origin": "openalex:2305|Microbial Fuel Cells and Bioremediation",
      "subfield": "environmental-science"
    }
  ],
  "title": "Closed-circuit bioelectrochemical operation is associated with a higher relative contribution of deterministic assembly and altered targeted functional-gene profiles in soil microbiomes",
  "title_text": "Closed-circuit bioelectrochemical operation is associated with a higher relative contribution of deterministic assembly and altered targeted functional-gene profiles in soil microbiomes",
  "type": "peer-reviewed",
  "updated_at": "2026-10-30T12:19:59Z",
  "url": "https://research.draconitic.com/paper/cvqqa3c8ajn6a",
  "venue": "Frontiers in Microbiology",
  "versions": []
}