{"response":{"status":"ok","message_type":"name"},"id":49710,"name":"Acaudatibacter","url":"https://api.seqco.de/v1/names/49710.json","uri":"https://seqco.de/i:49710","rank":"genus","status_name":"Valid (SeqCode)","syllabication":"A.cau.da.ti.bac'ter","priority_date":"2026-05-11T17:58:19.127Z","description":{"raw":"Members of this genus have been identified in freshwater, wastewater, and in soils from permafrost active layers, of glacier regions, and of rhizospheres of Barbacenia macrantha and Vellozia epidendroides. ANI values among genomes representing separate species within the genus range between \u003c 76.6% and 81.0%. AAI values among genomes representing separate species within the genus range between 65.4% and 78.8%. Genomes of this genus notably contain genes for the Entner-Doudoroff Pathway, for aerobic respiration using an NADH-quinone oxidoreductase, a ubiquinol-cytochrome c reductase, and a cytochrome c oxidase, an F-type ATPase, and for biosynthesis of polyphosphate and polyhydroxybutyrate. Some members have the genetic potential to produce bacteriochlorophyll and/or carotenoid pigments. Most members encode genes for type IV tight adhesion pili, with some members further encoding genes for flagellar motility, chemotaxis, and holdfast formation, with genetic potential similar to members of the Caulobacteraceae family with obligate dimorphic lifecycles. However, most members likely have a monomorphic cell developmental program, as inferred from their lack genes for flagella, chemotaxis, and polar holdfast adhesin, as well as absence of a large number (\u003e 20) of cell cycle regulation and polar morphogenesis genes present in related dimorphic taxa. The genus includes genomes with chemoheterotrophic, photoheterotrophic, and photoautotrophic genetic potentials. The taxon is supported as a genus-level group by phylogenomics and AAI, and corresponds to the GTDB taxonomy (R220) genus “g__Palsa-881”.\n\nThe nomenclatural type for the genus is Acaudatibacter aquilonius.","html":"\u003cdiv\u003eMembers of this genus have been identified in freshwater, wastewater, and in soils from permafrost active layers, of glacier regions, and of rhizospheres of \u003cem\u003eBarbacenia macrantha\u003c/em\u003e and \u003cem\u003eVellozia epidendroides\u003c/em\u003e. ANI values among genomes representing separate species within the genus range between \u0026lt; 76.6% and 81.0%. AAI values among genomes representing separate species within the genus range between 65.4% and 78.8%. Genomes of this genus notably contain genes for the Entner-Doudoroff Pathway, for aerobic respiration using an NADH-quinone oxidoreductase, a ubiquinol-cytochrome \u003cem\u003ec\u003c/em\u003e reductase, and a cytochrome \u003cem\u003ec\u003c/em\u003e oxidase, an F-type ATPase, and for biosynthesis of polyphosphate and polyhydroxybutyrate. Some members have the genetic potential to produce bacteriochlorophyll and/or carotenoid pigments. Most members encode genes for type IV tight adhesion pili, with some members further encoding genes for flagellar motility, chemotaxis, and holdfast formation, with genetic potential similar to members of the \u003cem\u003eCaulobacteraceae\u003c/em\u003e family with obligate dimorphic lifecycles. However, most members likely have a monomorphic cell developmental program, as inferred from their lack genes for flagella, chemotaxis, and polar holdfast adhesin, as well as absence of a large number (\u0026gt; 20) of cell cycle regulation and polar morphogenesis genes present in related dimorphic taxa. The genus includes genomes with chemoheterotrophic, photoheterotrophic, and photoautotrophic genetic potentials. The taxon is supported as a genus-level group by phylogenomics and AAI, and corresponds to the GTDB taxonomy (R220) genus “g__Palsa-881”.\u003cbr\u003e\u003cbr\u003eThe nomenclatural type for the genus is \u003cem\u003eAcaudatibacter\u003c/em\u003e \u003cem\u003eaquilonius\u003c/em\u003e.\u003c/div\u003e"},"formal_styling":{"raw":"Acaudatibacter Hallgren et al., 2025 (priority 2026)","html":"\u003cspan data-type=name data-value=\"Acaudatibacter\" data-id=\"49710\" data-validated=1 data-correct=1 data-candidatus=0\u003e\u003ci\u003eAcaudatibacter\u003c/i\u003e\u003c/span\u003e Hallgren et al., 2025 (priority 2026)"},"etymology":"Gr. pref. a-, not, without [inseparable prefix]; L. masc. adj. caudatus, tailed or having a tail; N.L. masc. n. bacter, rod; N.L. masc. n. Acaudatibacter, tailless rod","nomenclatural_type":{"class":"Name","id":49709,"url":"https://api.seqco.de/v1/names/49709.json","uri":"https://seqco.de/i:49709","display":"Acaudatibacter aquilonius"},"proposed_in":{"id":4535,"citation":"Hallgren et al., 2025, Nature Communications","doi":"10.1038/s41467-025-65642-x","url":"https://api.seqco.de/v1/publications/4535.json"},"classification":[{"id":753,"name":"Bacteria","rank":"domain","status_name":"Valid (ICNP)","priority_date":null,"nomenclatural_type":{"class":"Name","id":3437,"url":"https://api.seqco.de/v1/names/3437.json","uri":"https://seqco.de/i:3437","display":"Bacillus"},"created_at":"2021-09-30T17:32:32.936Z","updated_at":"2024-12-13T10:36:54.606Z","url":"https://api.seqco.de/v1/names/753.json","uri":"https://seqco.de/i:753"},{"id":791,"name":"Pseudomonadota","rank":"phylum","status_name":"Valid (ICNP)","priority_date":null,"nomenclatural_type":{"class":"Name","id":16834,"url":"https://api.seqco.de/v1/names/16834.json","uri":"https://seqco.de/i:16834","display":"Pseudomonas"},"created_at":"2021-10-22T14:21:06.631Z","updated_at":"2026-07-10T13:23:46.732Z","url":"https://api.seqco.de/v1/names/791.json","uri":"https://seqco.de/i:791"},{"id":847,"name":"Alphaproteobacteria","rank":"class","status_name":"Valid (ICNP)","priority_date":null,"nomenclatural_type":{"class":"Name","id":4750,"url":"https://api.seqco.de/v1/names/4750.json","uri":"https://seqco.de/i:4750","display":"Caulobacter"},"created_at":"2021-10-22T14:21:07.612Z","updated_at":"2024-12-30T01:54:14.378Z","url":"https://api.seqco.de/v1/names/847.json","uri":"https://seqco.de/i:847"},{"id":1956,"name":"Caulobacterales","rank":"order","status_name":"Valid (ICNP)","priority_date":null,"nomenclatural_type":{"class":"Name","id":4750,"url":"https://api.seqco.de/v1/names/4750.json","uri":"https://seqco.de/i:4750","display":"Caulobacter"},"created_at":"2021-10-22T14:22:07.655Z","updated_at":"2024-12-30T01:55:00.972Z","url":"https://api.seqco.de/v1/names/1956.json","uri":"https://seqco.de/i:1956"},{"id":2917,"name":"Caulobacteraceae","rank":"family","status_name":"Valid (ICNP)","priority_date":null,"nomenclatural_type":{"class":"Name","id":4750,"url":"https://api.seqco.de/v1/names/4750.json","uri":"https://seqco.de/i:4750","display":"Caulobacter"},"created_at":"2021-10-22T14:22:50.949Z","updated_at":"2024-12-30T01:54:52.395Z","url":"https://api.seqco.de/v1/names/2917.json","uri":"https://seqco.de/i:2917"}],"children":[{"id":49709,"name":"Acaudatibacter aquilonius","url":"https://api.seqco.de/v1/names/49709.json","uri":"https://seqco.de/i:49709"},{"id":49711,"name":"Acaudatibacter boreus","url":"https://api.seqco.de/v1/names/49711.json","uri":"https://seqco.de/i:49711"},{"id":49712,"name":"Acaudatibacter lapponiensis","url":"https://api.seqco.de/v1/names/49712.json","uri":"https://seqco.de/i:49712"}],"register":{"acc_url":"seqco.de/r:9aocwnme","title":"Register list for 4 new names including Acaudatibacter gen. nov.","priority_date":"2026-05-11T17:58:19.127Z","url":"https://api.seqco.de/v1/registers/r:9aocwnme.json","uri":"https://seqco.de/r:9aocwnme"},"created_at":"2025-02-10T12:14:30.437Z","updated_at":"2026-05-11T18:02:50.888Z"}