Name: Natronobacillus azotifigens Sorokin et al. 2009

Category: Species

Proposed as: sp. nov.

Etymology: a.zo.ti.fi’gens. N.L. neut. n. azotum, nitrogen (from french noun azote); L. pres. part. figens, fixing, attaching; N.L. masc. part. adj. azotifigens, nitrogen-fixing

Pronunciation, gender: a-zo-ti-FI-gens, masculine

Type strain: 24KS-1; NCCB 100215; UNIQEM U378

Conduct genome-based taxonomy at

16S rRNA gene: EU143681 Analyse FASTA

Effective publication: Sorokin ID, Zadorina EV, Kravchenko IK, Boulygina ES, Tourova TP, Sorokin DY. Natronobacillus azotifigens gen. nov., sp. nov., an anaerobic diazotrophic haloalkaliphile from soda-rich habitats. Extremophiles 2008; 12:819-827.

IJSEM list: Euzeby JP. Validation list no. 125. List of new names and new combinations previously effectively, but not validly, published. Int J Syst Evol Microbiol 2009; 59:1-2.

Nomenclatural status: validly published under the ICNP

Taxonomic status: correct name

Risk group: 1

• Notes:
  • 🥇 Nomenclatural type of the genus Natronobacillus Sorokin et al. 2009. Publication: Sorokin ID, Zadorina EV, Kravchenko IK, Boulygina ES, Tourova TP, Sorokin DY. Natronobacillus azotifigens gen. nov., sp. nov., an anaerobic diazotrophic haloalkaliphile from soda-rich habitats. Extremophiles 2008; 12:819-827.
  • 📧 The e-mail address of the corresponding author given in the effective publication is not functional any more.
  • 😷 The risk group for Germany has been imported on 2023-10-29. The full classification is: risk group = 1. — If in doubt, use the risk group given in the regulations for your country and, if these are not available, use the risk group given in the catalogue of the culture collection from which you have obtained or intend to obtain the strain.
  • 🎓 Name mentioned 2 times in PubMed until 2025-06-04.
  • 🧍 According to Ludwig et al. (2021), this "species and genus affiliate within the genus Amphibacillus and may be reclassified". Publication: Ludwig W, Viver T, Westram R, Francisco Gago J, Bustos-Caparros E, Knittel K, Amann R, Rossello-Mora R. Release LTP_12_2020, featuring a new ARB alignment and improved 16S rRNA tree for prokaryotic type strains. Syst Appl Microbiol 2021; 44:126218.

Parent taxon: Natronobacillus Sorokin et al. 2009

Assigned by: Sorokin ID, Zadorina EV, Kravchenko IK, Boulygina ES, Tourova TP, Sorokin DY. Natronobacillus azotifigens gen. nov., sp. nov., an anaerobic diazotrophic haloalkaliphile from soda-rich habitats. Extremophiles 2008; 12:819-827.

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Record number: 787666