ArticleThe ISME journal2023
Closed genomes uncover a saltwater species of Candidatus Electronema and shed new light on the boundary between marine and freshwater cable bacteria.
Article in The ISME journal, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 25 papers.
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25 citing papers in PubMed.
- Extracellular electron transfer in cable bacteria enables growth rates comparable to aerobic respiration.Nature communications · 2026Article
- 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
- Distribution of a novel DsrEFH sulfur transferase suggests widespread sulfur oxidation capacity in sulfate reducers.The ISME journal · 2026Article
- Genomic adaptation strategies to habitat switching in Korarchaeota.Science advances · 2026Article
- gcMeta 2025: a global repository of metagenome-assembled genomes enabling cross-ecosystem microbial discovery and function research.Nucleic acids research · 2026Article
- Article
- Inactive "Ghost" Cells Do Not Affect Motility and Long-Range Electron Transport in Filamentous Cable Bacteria.Environmental microbiology · 2025Article
- 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
- Biodegradation of S-Triazine Herbicides Under Saline Conditions byMicroorganisms · 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
- Article
- Article
- Comparative genomic analysis of nickel homeostasis in cable bacteria.BMC genomics · 2024Article
- Electrogenic sulfur oxidation mediated by cable bacteria and its ecological effects.Environmental science and ecotechnology · 2024Review
- Electron Transfer in the Biogeochemical Sulfur Cycle.Life (Basel, Switzerland) · 2024Review
- Macroevolutionary Dynamics in Micro-organisms: Generalists Give Rise to Specialists Across Biomes in the Ubiquitous Bacterial Phylum Myxococcota.Molecular biology and evolution · 2024Article
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9 authors.
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Abstract
Cable bacteria of the Desulfobulbaceae family are centimeter-long filamentous bacteria, which are capable of conducting long-distance electron transfer. Currently, all cable bacteria are classified into two candidate genera: Candidatus Electronema, typically found in freshwater environments, and Candidatus Electrothrix, typically found in saltwater environments. This taxonomic framework is based on both 16S rRNA gene sequences and metagenome-assembled genome (MAG) phylogenies. However, most of the currently available MAGs are highly fragmented, incomplete, and thus likely miss key genes essential for deciphering the physiology of cable bacteria. Also, a closed, circular genome of cable bacteria has not been published yet. To address this, we performed Nanopore long-read and Illumina short-read shotgun sequencing of selected environmental samples and a single-strain enrichment of Ca. Electronema aureum. We recovered multiple cable bacteria MAGs, including two circular and one single-contig. Phylogenomic analysis, also confirmed by 16S rRNA gene-based phylogeny, classified one circular MAG and the single-contig MAG as novel species of cable bacteria, which we propose to name Ca. Electronema halotolerans and Ca. Electrothrix laxa, respectively. The Ca. Electronema halotolerans, despite belonging to the previously recognized freshwater genus of cable bacteria, was retrieved from brackish-water sediment. Metabolic predictions showed several adaptations to a high salinity environment, similar to the "saltwater" Ca. Electrothrix species, indicating how Ca. Electronema halotolerans may be the evolutionary link between marine and freshwater cable bacteria lineages.
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