{"response":{"status":"ok","message_type":"publication"},"id":4869,"citation":"Ravin et al., 2026, International Journal of Molecular Sciences","doi":"10.3390/ijms27198801","url":"https://api.seqco.de/v1/publications/4869.json","link_ext":"https://doi.org/10.3390/ijms27198801","title":"The Genomic Characterization of a Novel Candidatus Genus of the Family Gallionellaceae, a Novel Candidatus Species of the Genus Gallionella and Their Metabolic Potential for Iron Oxidation","journal":"International Journal of Molecular Sciences","journal_loc":"27 (19)","journal_date":"2026-10-01","pub_type":"journal-article","abstract":"\u003cjats:p\u003eThe family Gallionellaceae includes neutrophilic, aerobic, iron-oxidizing bacteria, many of which remain uncultured and known only from metagenomic data. In this study, two high-quality Gallionellaceae genomes were assembled from a ferruginous spring in the Voronezh region, Russia. Phylogenetic analysis based on 120 concatenated proteins, ANI (average nucleotide identity), and AAI (average amino acid identity) indicates that BG-057 belongs to the genus Gallionella and BG-364 to the genus 39-52-133. We propose the names “Candidatus Gallionella aquifuscii” sp. nov. for BG-057 and “Candidatus Dubininella ochracea” gen. nov., sp. nov. for BG-364. Both genomes encode genes for the Calvin-Benson-Bassham (CBB) cycle. Both are potentially capable of aerobic respiration due to the presence of electron transfer chain components. Both genomes encode the iron oxidase Cyc2, and BG-057 also encodes MtoA. BG-057 is potentially capable of lithotrophic growth in the presence of H2 and H2S. BG-364 is potentially capable of growth via Mn (II) oxidation; arsenite oxidation; the direct oxidation of thiosulfate; H2S, elemental sulfur, and sulfite oxidation. BG-364 encodes denitrification genes (narGHI, nirS, norBC). BG-057 possesses systems for the biosynthesis and export of siderophores, while BG-364 lacks these systems but retains Ton-dependent receptors, suggesting the use of exogenous siderophores.\u003c/jats:p\u003e","long_citation_html":"Ravin et al. (2026). The Genomic Characterization of a Novel Candidatus Genus of the Family Gallionellaceae, a Novel Candidatus Species of the Genus Gallionella and Their Metabolic Potential for Iron Oxidation.\n\u003ci\u003eInternational Journal of Molecular Sciences\u003c/i\u003e.\n\u003ca href=\"https://doi.org/10.3390/ijms27198801\" target=\"_blank\"\u003eDOI: 10.3390/ijms27198801\u003c/a\u003e\n","created_at":"2026-10-02T00:00:21.231Z","updated_at":"2026-10-17T00:00:15.647Z","authors":[{"id":6334,"given":"Nikolai V.","family":"Ravin","created_at":"2019-04-15T19:30:24.267Z","updated_at":"2019-04-15T19:30:24.267Z","url":"https://api.seqco.de/v1/authors/6334.json"},{"id":10504,"given":"Maria V.","family":"Gureeva","created_at":"2022-07-05T22:00:10.563Z","updated_at":"2022-07-05T22:00:10.563Z","url":"https://api.seqco.de/v1/authors/10504.json"},{"id":6332,"given":"Alexey V.","family":"Beletsky","created_at":"2019-04-15T19:30:24.240Z","updated_at":"2019-04-15T19:30:24.240Z","url":"https://api.seqco.de/v1/authors/6332.json"},{"id":9148,"given":"Margarita Y.","family":"Grabovich","created_at":"2021-10-22T22:00:12.918Z","updated_at":"2021-10-22T22:00:12.918Z","url":"https://api.seqco.de/v1/authors/9148.json"}],"names":[{"id":56860,"name":"Candidatus Dubininella ochracea","url":"https://api.seqco.de/v1/names/56860.json","uri":"https://seqco.de/i:56860"},{"id":56861,"name":"Candidatus Gallionella aquifuscii","url":"https://api.seqco.de/v1/names/56861.json","uri":"https://seqco.de/i:56861"}],"subjects":[]}