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Natronobacterium
Scientific classification
Domain:	Archaea
Kingdom:	Methanobacteriati
Phylum:	Methanobacteriota
Class:	Halobacteria
Order:	Natrialbales
Family:	Natrialbaceae
Genus:	Natronobacterium; Tindall et al. 1984 emend. Tindall 2001
Type species
	Natronobacterium gregoryi; Tindall et al. 1984
Species
	N. chahanensis; N. gregoryi; "N. innermongoliae"; N. texcoconense;
Synonyms
	Natronobacteria;

Natronobacterium is a genus of archaeans in the family the Natrialbaceae.^[1] A member of the domain Archaea, it is both an extreme halophile and alkaliphile, thriving at an optimum saline concentration of 20% and optimum pH of 10.

Taxonomy

The currently accepted taxonomy is based on the List of Prokaryotic names with Standing in Nomenclature (LPSN)^[2] and National Center for Biotechnology Information (NCBI).^[1]

Proposed species:

Natronobacterium chahanensis and Natronobacterium innemongoliae are proposed names for strains isolated from soda lakes in China. As of 2022, the descriptions from 1989 (N. chahanensis)^[3] and 1997 (N. innemongoliae)^[4] are not validly published.

Species formerly placed in this taxon.

Natronobacterium magadii, now Natrialba magadii
Natronobacterium nitratireducens, now Halobiforma nitratireducens
Natronobacterium pharaonis, now Natronomonas pharaonis
Natronobacterium vacuolatum, now Halorubrum vacuolatum

16S rRNA based LTP_07_2026^[5]^[6]^[7]

53 marker proteins based GTDB 11-RS232^[8]^[9]^[10]

Halobiforma

H. nitratireducens (Xin et al. 2001) Hezayen et al. 2002

	H. haloterrestris Hezayen et al. 2002

	H. lacisalsi Xu et al. 2005

Natronobacterium

	N. gregoryi Tindall et al. 1984

	N. texcoconense Ruiz-Romero et al. 2013

Natronococcus

Natronobacterium

	N. gregoryi

	N. texcoconense

N. nitratireducens Xin et al. 2001

	N. haloterrestris (Hezayen et al. 2002) Dong et al. 2025

	N. lacisalsi (Xu et al. 2005) Dong et al. 2025

References

1 2 3 C.L. Schoch. "Natronobacterium". National Center for Biotechnology Information (NCBI) taxonomy database. Retrieved 2026-08-01.
1 2 Natronobacterium in LPSN; Freese, H. M.; Meier-Kolthoff, J. P.; Sardà Carbasse, J.; Afolayan, A. O.; Göker, M. (2026). "TYGS and LPSN in 2025: a Global Core Biodata Resource for genome-based classification and nomenclature of prokaryotes within DSMZ Digital Diversity". Nucleic Acids Research. 54 (D1): D884–D891. doi:10.1093/nar/gkaf1110.
↑ Page Species: Natronobacterium chahanensis on "LPSN - List of Prokaryotic names with Standing in Nomenclature". Deutsche Sammlung von Mikroorganismen und Zellkulturen. Retrieved 2022-07-15.
↑ Page Species: Natronobacterium innemongoliae on "LPSN - List of Prokaryotic names with Standing in Nomenclature". Deutsche Sammlung von Mikroorganismen und Zellkulturen. Retrieved 2022-07-15.
↑ "The LTPlus". The All-Species Living Tree Project. Retrieved 1 August 2026.
↑ "LTP_all tree in newick format". The All-Species Living Tree Project. Retrieved 1 August 2026.
↑ Rossello-Mora, Ramon; Viver, Tomeu; Palmer-Rodríguez, Pere; Westram, Ralf; Bustos-Caparros, Esteban; Gago, Joan Francisco; Gonzalez-Mendez, Jaime; Llabrés, Mercè; Ludwig, Wolfgang; Amann, Rudolf (22 April 2026). "A pipeline for improved 16S rRNA gene-based phylogeny and diversity analyses of Bacteria and Archaea". Nature Portfolio. doi:10.21203/rs.3.rs-9370187/v1.
↑ "GTDB release 11-RS232". Genome Taxonomy Database. Retrieved 1 May 2026.
↑ "ar53_r232.sp_label". Genome Taxonomy Database. Retrieved 1 May 2026.
↑ "Taxon History". Genome Taxonomy Database. Retrieved 1 May 2026.

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Taxonomy

See also

References

Further reading