Register list for 8 new names including Aridivitia classis nov.

Submitted by Leung, Pok Man

Class Aridivitia

Etymology: [A.ri.di.vi'ti.a.] N.L. fem. n. Aridivita, the type genus of the family; L. neut. pl. suff. -ia, ending to denote a class; N.L. neut. pl. n. Aridivitia, the Aridivita class
Nomenclatural type: Genus Aridivita
Description: Order formerly known as "CADDZG01" in GTDB R226. The description of the class is the same as for its type genus Aridivita.
Classification: Bacteria » Actinomycetota » Aridivitia
References: Effective publication: Ortiz et al., 2021 [1]
Assigned taxonomically: Ortiz et al., 2021 [1]
Registry URL: https://seqco.de/i:49037

Order Aridivitales

Etymology: [A.ri.di.vi.ta'les] N.L. fem. n. Aridivita, the type genus of the family; L. fem. pl. suff. -ales, ending to denote an order; N.L. fem. pl. n. Aridivitales, the Aridivita order
Nomenclatural type: Genus Aridivita
Description: Order formerly known as "CADDZG01" in GTDB R226. The description of the family is the same as for its type genus Aridivita.
Classification: Bacteria » Actinomycetota » Aridivitia » Aridivitales
References: Effective publication: Ortiz et al., 2021 [1]
Assigned taxonomically: Ortiz et al., 2021 [1]
Registry URL: https://seqco.de/i:52911

Family Aridivitaceae

Etymology: [A.ri.di.vi.ta'ce.ae] N.L. fem. n. Aridivita, the type genus of the family; L. fem. pl. suff. -aceae, ending to denote a family; N.L. fem. pl. n. Aridivitaceae, family of the genus Aridivita
Nomenclatural type: Genus Aridivita
Description: Family formerly known as "WHSQ01" in GTDB R226. The description of the family is the same as for its type genus Aridivita.
Classification: Bacteria » Actinomycetota » Aridivitia » Aridivitales » Aridivitaceae
References: Effective publication: Ortiz et al., 2021 [1]
Assigned taxonomically: Ortiz et al., 2021 [1]
Registry URL: https://seqco.de/i:52910

Family Edaphomicrobiaceae

Etymology: [E.da.pho.mi.cro.bi.a'ce.ae] N.L. neut. n. Edaphomicrobium, the type genus of the family; L. fem. pl. suff. -aceae, ending to denote a family; N.L. fem. pl. n. Edaphomicrobiaceae, family of the genus Edaphomicrobium
Nomenclatural type: Genus Edaphomicrobium
Description: Family formerly known as "CSP1-4" in GTDB R226. The description of the family is the same as for its type genus Edaphomicrobium.
Classification: Bacteria » Chloroflexota » Candidatus Limnocylindria » Candidatus Limnocylindrales » Edaphomicrobiaceae
References: Effective publication: Ortiz et al., 2021 [1]
Registry URL: https://seqco.de/i:52914

Genus Aridivita

Etymology: [A.ri.di.vi'ta.] L. masc. adj. aridus, dry; L. fem. n. vita, life; N.L. fem. n. Aridivita, a dry life
Nomenclatural type: Species Aridivita willemsiae^Ts
Description: An actinobacterial genus that thrives in arid desert soils. The genus is formerly known as "JACCZU01" in GTDB R202 to R226.
Classification: Bacteria » Actinomycetota » Aridivitia » Aridivitales » Aridivitaceae » Aridivita
References: Effective publication: Ortiz et al., 2021 [1]
Assigned taxonomically: Ortiz et al., 2021 [1]
Registry URL: https://seqco.de/i:52908

Genus Edaphomicrobium

Etymology: [E.da.pho.mi.cro'bi.um.] Gr. neut. n. edaphos, soil; N.L. neut. n. microbium, a microbe; N.L. neut. n. Edaphomicrobium, a soil microbe
Nomenclatural type: Species Edaphomicrobium janssenii^Ts
Description: A Chloroflexota genus that thrives in arid desert soils. The genus is formerly known as "CF-46" in GTDB R202 to R226.
Classification: Bacteria » Chloroflexota » Candidatus Limnocylindria » Candidatus Limnocylindrales » Edaphomicrobiaceae » Edaphomicrobium
References: Effective publication: Ortiz et al., 2021 [1]
Assigned taxonomically: Ortiz et al., 2021 [1]
Registry URL: https://seqco.de/i:52912

Species Aridivita willemsiae^Ts

Etymology: [wi.llem'si.ae] N.L. gen. n. willemsiae, of Willems, named after Anne Willems, for her contributions to Antarctic microbiology using isolation-based approaches
Nomenclatural type: NCBI Assembly: GCA_013695835.1 ^Ts
Description: An actinobacterial bacterium represented a high-quality metagenome-assembled genome (MAG), recovered from desert soils from the Mackay Glacier region, Antarctica. The bacterium is predicted to be capable of aerotrophic growth (growth of on atmospheric substrates), using H2 (via a high-affinity group 1h [NiFe]-hydrogenase) and CO (via a Form I carbon monoxide dehydrogenase) as energy and electron sources to fix CO2 (via CBB cycle mediated by a Type IE RuBisCO). The species is proposed to serve as the nomenclatural type for the Aridivita genus, named after Anne Willems, for her contributions to Antarctic microbiology using isolation-based approaches.
Classification: Bacteria » Actinomycetota » Aridivitia » Aridivitales » Aridivitaceae » Aridivita » Aridivita willemsiae^Ts
References: Effective publication: Ortiz et al., 2021 [1]
Assigned taxonomically: Ortiz et al., 2021 [1]
Registry URL: https://seqco.de/i:23574

Species Edaphomicrobium janssenii^Ts

Etymology: [jans.sen'i.i.] N.L. gen. n. janssenii, of Janssen, named after Peter H. Janssen, for his pioneering isolation-based studies that first described this lineage (Ellin6529)
Nomenclatural type: NCBI Assembly: GCA_013698095.1 ^Ts
Description: A Chloroflexota bacterium represented a high-quality metagenome-assembled genome (MAG), recovered from desert soils from the Mackay Glacier region, Antarctica. The bacterium is predicted to be an atmospheric hydrogen oxidizer using H2 (via a high-affinity group 1h [NiFe]-hydrogenase) from air as a key energy source for survival in oligotrophic desert soils. The species is proposed to serve as the nomenclatural type for the Edaphomicrobium genus, and honors Peter H. Janssen, for his pioneering isolation-based studies that first described the class lineage of this bacterium (Ellin6529, later named as Limnocylindria).
Classification: Bacteria » Chloroflexota » Candidatus Limnocylindria » Candidatus Limnocylindrales » Edaphomicrobiaceae » Edaphomicrobium » Edaphomicrobium janssenii^Ts
References: Effective publication: Ortiz et al., 2021 [1]
Assigned taxonomically: Ortiz et al., 2021 [1]
Registry URL: https://seqco.de/i:52913

References

Ortiz et al. (2021). Multiple energy sources and metabolic strategies sustain microbial diversity in Antarctic desert soils. Proceedings of the National Academy of Sciences. DOI:10.1073/pnas.2025322118

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:lfje5-e8 submitted by Leung, Pok Man and including 8 new names has been successfully validated.

Date of Priority: 2025-09-11 01:25 UTC

DOI: 10.57973/seqcode.r:lfje5-e8