Name: Leifsonia kafniensis Pindi et al. 2009

Category: Species

Proposed as: sp. nov.

Etymology: kaf.ni.en’sis. N.L. fem. adj. kafniensis, of or pertaining to the Kafni glacier in the Himalayas of India, where the type strain was isolated

Gender: feminine

Type strain: JCM 17021; KFC-22; LMG 24362; NCCB 100216

See detailed strain information at

Conduct genome-based taxonomy at

16S rRNA gene: AM889135 Analyse FASTA

Valid publication: Pindi PK, Kishore KH, Reddy GS, Shivaji S. Description of Leifsonia kafniensis sp. nov. and Leifsonia antarctica sp. nov. Int J Syst Evol Microbiol 2009; 59:1348-1352.

IJSEM list: Euzeby JP. Notification list. Notification that new names and new combinations have appeared in volume 59, part 6 of the IJSEM. Int J Syst Evol Microbiol 2009; 59:2131-2132.

Nomenclatural status: validly published under the ICNP

Taxonomic status: correct name (and explicitly recommended for medical use)

Risk group: 1

• Emendations:
  • Cai et al. 2018 Cai Y, Tao WZ, Ma YJ, Cheng J, Zhang MY, Zhang YX. Leifsonia flava sp. nov., a novel actinobacterium isolated from the rhizosphere of Aquilegia viridiflora. J Microbiol 2018; 56:549-555. Oren A, Garrity GM. List of changes in taxonomic opinion no. 29. Notification of changes in taxonomic opinion previously published outside the IJSEM. Int J Syst Evol Microbiol 2019; 69:13-32.

• Notes:
  • 😷 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 4 times in PubMed until 2024-03-27.
  • 🙆 This name is on the List of Recommended Names for bacteria of medical importance (LoRN) as the name to be applied to this species. The name is on LoRN because of the recorded risk group of other species in the genus.
  • 🧍 According to Ludwig et al. (2021), this "species affiliates away from the type species and may be reclassified as a new genus together with Microterricola gilva". 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: Leifsonia Evtushenko et al. 2000

Assigned by: Pindi PK, Kishore KH, Reddy GS, Shivaji S. Description of Leifsonia kafniensis sp. nov. and Leifsonia antarctica sp. nov. Int J Syst Evol Microbiol 2009; 59:1348-1352.

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Record number: 787904