Acidulidesulfobacteriales ord. nov. with a novel family, two novel genera, and four novel species

Submitted by Rodriguez-R, Luis M

Order Acidulidesulfobacteriales

Etymology: [A.ci.du.li.de.sul.fo.bac.te.ri.a'les] N.L. neut. n. Acidulidesulfobacterium, referring to the type genus Acidulidesulfobacterium; -ales, ending to denote an order; N.L. fem. pl. n. Acidulidesulfobacteriales, the Acidulidesulfobacterium order
Nomenclatural type: Genus Acidulidesulfobacterium
Description: Tan et al., 2019 (modified): Facultatively anaerobic autotrophs, likely use oxygen as terminal electron acceptor and thus couple Fe(II) and sulfide oxidation to aerobic respiration under aerobic conditions in AMD water and on biofilm surface, while they may perform dissimilatory sulfate reduction, Fe(III) respiration and fermentations under anaerobic conditions in the interior of biofilms and sediments.
Classification: Bacteria » “Acidulidesulfobacteriota” » “Acidulidesulfobacteriia” » Acidulidesulfobacteriales
References: Effective publication: Tan et al., 2019 [1]
Registry URL: https://seqco.de/i:275

Family Acidulidesulfobacteriaceae

Etymology: [A.ci.du.li.de.sul.fo.bac.te.ri.a'ce.ae] N.L. neut. n. Acidulidesulfobacterium, referring to the type genus Acidulidesulfobacterium; -aceae, ending to denote a family; N.L. fem. pl. n. Acidulidesulfobacteriaceae, the Acidulidesulfobacterium family
Nomenclatural type: Genus Acidulidesulfobacterium
Classification: Bacteria » “Acidulidesulfobacteriota” » “Acidulidesulfobacteriia” » Acidulidesulfobacteriales » Acidulidesulfobacteriaceae
References: Effective publication: Tan et al., 2019 [1]
Registry URL: https://seqco.de/i:41968

Genus Acididesulfobacter

Etymology: [A.ci.di.de.sul.fo.bac'ter] N.L. masc. adj. acidus, acid; L. pref. de-, from; L. n. sulfur, sulfur; N.L. pref. desulfo-, a dissimilatory sulfate-reducing bacterium; L. masc. n. bacter, a rod; N.L. masc. n. Acididesulfobacter, a rod-shaped sulfate reducer in acidic environments
Nomenclatural type: Species Acididesulfobacter guangdongensis^Ts
Description: A genus in the order Acidulidesulfobacteriales, described on the basis of metagenome-assembled genomes AP1 (Acididesulfobacter diazotrophicus) and AP2 (Acididesulfobacter guangdongensis). Established on the basis of maximum-likelihood phylogenetic reconstruction using the concatenated alignment of 16 ribosomal proteins.
Classification: Bacteria » “Acidulidesulfobacteriota” » “Acidulidesulfobacteriia” » Acidulidesulfobacteriales » Acidulidesulfobacteriaceae » Acididesulfobacter
References: Effective publication: Tan et al., 2019 [1]
Registry URL: https://seqco.de/i:39396

Genus Acidulidesulfobacterium

Etymology: [A.ci.du.li.de.sul.fo.bac.te'ri.um] L. masc. adj. acidulus, a little sour; N.L. pref. desulfo-, dissimilatory sulfate-reducing; N.L. neut. n. bacterium, rod; N.L. neut. n. Acidulidesulfobacterium, a sulfate-reducing rod in an acidic environment
Nomenclatural type: Species Acidulidesulfobacterium ferriphilum^Ts
Description: A genus in the order Acidulidesulfobacteriales, described on the basis of metagenome-assembled genomes AP3 (Acidulidesulfobacterium ferriphilum) and AP4 (Acidulidesulfobacterium acidiphilum). Established on the basis of maximum-likelihood phylogenetic reconstruction using the concatenated alignment of 16 ribosomal proteins.
Classification: Bacteria » “Acidulidesulfobacteriota” » “Acidulidesulfobacteriia” » Acidulidesulfobacteriales » Acidulidesulfobacteriaceae » Acidulidesulfobacterium
References: Effective publication: Tan et al., 2019 [1]
Corrigendum: Oren, Garrity, 2021 [2] (from “Acidulodesulfobacterium”)
Registry URL: https://seqco.de/i:39397

Species Acididesulfobacter diazotrophicus

Etymology: [di.a.zo.tro'phi.cus] Gr. pref. di-, twice, doubly; N.L. neut. n. azotum, nitrogen; N.L. pref. diazo-, pertaining to dinitrogen; N.L. masc. adj. trophicus, (from Gr. masc. adj. trophikos) nursing, tending; N.L. masc. adj. diazotrophicus, growing on dinitrogen
Nomenclatural type: NCBI Assembly: GCA_004195025.1 ^Ts
Description: Established on the basis of Average Nucleotide Identity (ANI, using OrthoANI), 16S rRNA identity, and maximum-likelihood phylogenetic reconstruction using the concatenated alignment of 16 ribosomal proteins. The type genome is AP1.
Classification: Bacteria » “Acidulidesulfobacteriota” » “Acidulidesulfobacteriia” » Acidulidesulfobacteriales » Acidulidesulfobacteriaceae » Acididesulfobacter » Acididesulfobacter diazotrophicus
References: Effective publication: Tan et al., 2019 [1]
Registry URL: https://seqco.de/i:42351

Species Acididesulfobacter guangdongensis^Ts

Etymology: [guang.dong.en'sis] N.L. masc. adj. guangdongensis, pertaining to Guangdong, a province of southern China, where this organism was first genomically described
Nomenclatural type: NCBI Assembly: GCA_004195045.1 ^Ts
Description: Established on the basis of Average Nucleotide Identity (ANI, using OrthoANI), 16S rRNA identity, and maximum-likelihood phylogenetic reconstruction using the concatenated alignment of 16 ribosomal proteins. The type genome is AP2.
Classification: Bacteria » “Acidulidesulfobacteriota” » “Acidulidesulfobacteriia” » Acidulidesulfobacteriales » Acidulidesulfobacteriaceae » Acididesulfobacter » Acididesulfobacter guangdongensis^Ts
References: Effective publication: Tan et al., 2019 [1]
Registry URL: https://seqco.de/i:42752

Species Acidulidesulfobacterium acidiphilum

Etymology: [a.ci.di.phi'lum] L. masc. adj. acidus, sour, acid; Gr. masc. adj. philos, loving; N.L. neut. adj. acidiphilum, acid-loving
Nomenclatural type: NCBI Assembly: GCA_008534395.1 ^Ts
Description: Established on the basis of Average Nucleotide Identity (ANI, using OrthoANI), 16S rRNA identity, and maximum-likelihood phylogenetic reconstruction using the concatenated alignment of 16 ribosomal proteins. The type genome is AP4.
Classification: Bacteria » “Acidulidesulfobacteriota” » “Acidulidesulfobacteriia” » Acidulidesulfobacteriales » Acidulidesulfobacteriaceae » Acidulidesulfobacterium » Acidulidesulfobacterium acidiphilum
References: Effective publication: Tan et al., 2019 [1]
Corrigendum: Oren, Garrity, 2021 [2] (from “Acidulodesulfobacterium acidiphilum”)
Assigned taxonomically: Tan et al., 2019 [1]
Registry URL: https://seqco.de/i:54849

Species Acidulidesulfobacterium ferriphilum^Ts

Etymology: [fer.ri.phi'lum] L. neut. n. ferrum, iron; N.L. neut. adj. philum, loving; N.L. neut. adj. ferriphilum, iron-loving
Nomenclatural type: NCBI Assembly: GCA_004195035.1 ^Ts
Description: Established on the basis of Average Nucleotide Identity (ANI, using OrthoANI), 16S rRNA identity, and maximum-likelihood phylogenetic reconstruction using the concatenated alignment of 16 ribosomal proteins. The type genome is AP3.
Classification: Bacteria » “Acidulidesulfobacteriota” » “Acidulidesulfobacteriia” » Acidulidesulfobacteriales » Acidulidesulfobacteriaceae » Acidulidesulfobacterium » Acidulidesulfobacterium ferriphilum^Ts
References: Effective publication: Tan et al., 2019 [1]
Corrigendum: Oren, Garrity, 2021 [2] (from “Acidulodesulfobacterium ferriphilum”)
Registry URL: https://seqco.de/i:42041

References

Tan et al. (2019). Insights into ecological role of a new deltaproteobacterial order Candidatus Acidulodesulfobacterales by metagenomics and metatranscriptomics. The ISME Journal. DOI:10.1038/s41396-019-0415-y
Oren, Garrity (2021). Candidatus List No. 2. Lists of names of prokaryotic Candidatus taxa. International Journal of Systematic and Evolutionary Microbiology. DOI:10.1099/ijsem.0.004671

Register List Certificate of Validation

On behalf of the Committee on the Systematics of Prokaryotes Described from Sequence Data (SeqCode Committee), we hereby certify that the Register List seqco.de/r:xmm5ngub submitted by Rodriguez-R, Luis M and including 8 new names has been successfully validated.

Date of Priority: 2026-01-30 02:22 UTC

DOI: 10.57973/seqcode.r:xmm5ngub