ArticleSystematic and applied microbiology2016
A taxonomic framework for cable bacteria and proposal of the candidate genera Electrothrix and Electronema.
Article in Systematic and applied microbiology, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 57 papers, 1 of them a synthesis that pooled it.
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57 citing papers in PubMed, 1 synthesis or guideline pooled it, 146 citations in OpenAlex.
- How low can they go? Aerobic respiration by microorganisms under apparent anoxia.FEMS microbiology reviews · 2022Pooled it
- Evidence for cable bacteria inhabiting deep in anoxic sediment reveals a novel ecological niche.Environmental microbiome · 2026Article
- Metagenome-assembled genome sequence ofMicrobiology resource announcements · 2026Article
- The genetic repertoire underlying electrogenic sulphur oxidation in cable bacteria.BMC genomics · 2026Article
- Artificial sediments enable reproducible cultivation and recapitulate ecological interactions of cable bacteria.ISME communications · 2026Article
- A novel cable bacteria species with a distinct morphology and genomic potential.Applied and environmental microbiology · 2025Article
- Comparison of cable bacteria genera reveals details of their conduction machinery.EMBO reports · 2025Article
- Extracellular electron transfer genes expressed by candidate flocking bacteria in cable bacteria sediment.mSystems · 2025Article
- Multidisciplinary methodologies used in the study of cable bacteria.FEMS microbiology reviews · 2025Review
- End-to-end contact enables long-distance electron transport between filaments in cable bacteria.The ISME journal · 2025Article
- Groundwater electro-bioremediation via diffuse electro-conductive zones: A critical review.Environmental science and ecotechnology · 2025Review
- Cable Bacteria and Their Biotechnological Application.Advances in biochemical engineering/biotechnology · 2025Review
- Article
- Interaction of living cable bacteria with carbon electrodes in bioelectrochemical systems.Applied and environmental microbiology · 2024Article
- Comparative genomic analysis of nickel homeostasis in cable bacteria.BMC genomics · 2024Article
- Closing the genome of unculturable cable bacteria using a combined metagenomic assembly of long and short sequencing reads.Microbial genomics · 2024Article
- Electromicrobiological concentration cells are an overlooked potential energy conservation mechanism for subsurface microorganisms.Frontiers in microbiology · 2024Article
- On the diversity, phylogeny and biogeography of cable bacteria.Frontiers in microbiology · 2024Article
- Closed genomes uncover a saltwater species of Candidatus Electronema and shed new light on the boundary between marine and freshwater cable bacteria.The ISME journal · 2023Article
- Composition and Metabolic Potential of Fe(III)-Reducing Enrichment Cultures of Methanotrophic ANME-2a Archaea and Associated Bacteria.Microorganisms · 2023Article
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Authors and funding
7 authors at 1 institution in 2 countries.
Funding
Abstract
Cable bacteria are long, multicellular filaments that can conduct electric currents over centimeter-scale distances. All cable bacteria identified to date belong to the deltaproteobacterial family Desulfobulbaceae and have not been isolated in pure culture yet. Their taxonomic delineation and exact phylogeny is uncertain, as most studies so far have reported only short partial 16S rRNA sequences or have relied on identification by a combination of filament morphology and 16S rRNA-targeted fluorescence in situ hybridization with a Desulfobulbaceae-specific probe. In this study, nearly full-length 16S rRNA gene sequences of 16 individual cable bacteria filaments from freshwater, salt marsh, and marine sites of four geographic locations are presented. These sequences formed a distinct, monophyletic sister clade to the genus Desulfobulbus and could be divided into six coherent, species-level clusters, arranged as two genus-level groups. The same grouping was retrieved by phylogenetic analysis of full or partial dsrAB genes encoding the dissimilatory sulfite reductase. Based on these results, it is proposed to accommodate cable bacteria within two novel candidate genera: the mostly marine "Candidatus Electrothrix", with four candidate species, and the mostly freshwater "Candidatus Electronema", with two candidate species. This taxonomic framework can be used to assign environmental sequences confidently to the cable bacteria clade, even without morphological information. Database searches revealed 185 16S rRNA gene sequences that affiliated within the clade formed by the proposed cable bacteria genera, of which 120 sequences could be assigned to one of the six candidate species, while the remaining 65 sequences indicated the existence of up to five additional species.
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