Name: Leifsonia psychrotolerans Ganzert et al. 2011

Category: Species

Proposed as: sp. nov.

Etymology: psy.chro.to’le.rans. Gr. masc. adj. psychros, cold; L. pres. part. tolerans, tolerating; N.L. part. adj. psychrotolerans, cold-tolerating

Gender: feminine

Type strain: DSM 22824; LI1; NCCB 100313

See detailed strain information at

Conduct genome-based taxonomy at

16S rRNA gene: GQ406810 Analyse FASTA

Valid publication: Ganzert L, Bajerski F, Mangelsdorf K, Lipski A, Wagner D. Leifsonia psychrotolerans sp. nov., a psychrotolerant species of the family Microbacteriaceae from Livingston Island, Antarctica. Int J Syst Evol Microbiol 2011; 61:1938-1943.

IJSEM list: Euzeby JP. Notification list. Notification that new names and new combinations have appeared in volume 61, part 8 of the IJSEM. Int J Syst Evol Microbiol 2011; 61:2566-2567.

Nomenclatural status: validly published under the ICNP

Taxonomic status: correct name

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 phylogenomic assignment score of this taxon is -0.01533 (N = 34).
  • According to Ludwig et al. (2021), this "species affiliates away from the type species of the genus, and should be reclassified as a new genus". 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: Ganzert L, Bajerski F, Mangelsdorf K, Lipski A, Wagner D. Leifsonia psychrotolerans sp. nov., a psychrotolerant species of the family Microbacteriaceae from Livingston Island, Antarctica. Int J Syst Evol Microbiol 2011; 61:1938-1943.

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Record number: 789395