Name: Loktanella sediminum Liang et al. 2015

Category: Species

Proposed as: sp. nov.

Etymology: se.di’mi.num. L. gen. neut. pl. n. sediminum, of sediments, pertaining to source of isolation

Gender: feminine

Type strain: DSM 28715; JCM 30120; MCCC 1K00257; S3B03

See detailed strain information at

Conduct genome-based taxonomy at

16S rRNA gene: KJ620985 Analyse FASTA

Valid publication: Liang J, Zhang Z, Liu Y, Wang M, Zhang XH. Loktanella sediminum sp. nov., isolated from marine surface sediment. Int J Syst Evol Microbiol 2015; 65:686-691.

IJSEM list: Oren A, Garrity GM. Notification list. Notification that new names and new combinations have appeared in volume 65, part 2 of the IJSEM. Int J Syst Evol Microbiol 2015; 65:1397-1399.

Nomenclatural status: validly published under the ICNP

Taxonomic status: synonym

Correct name: Cognatiyoonia sediminum (Liang et al. 2015) Wirth and Whitman 2018

Risk group: 1

• Synonyms:

  • Name	Kind
    Cognatiyoonia sediminum (Liang et al. 2015) Wirth and Whitman 2018	homotypic synonym, validly published under the ICNP

• Emendations:
  • Hördt et al. 2020 Hordt A, Lopez MG, Meier-Kolthoff JP, Schleuning M, Weinhold LM, Tindall BJ, Gronow S, Kyrpides NC, Woyke T, Goker M. Analysis of 1,000+ Type-Strain Genomes Substantially Improves Taxonomic Classification of Alphaproteobacteria. Front Microbiol 2020; 11:468. Oren A, Garrity GM. List of changes in taxonomic opinion no. 32. Notification of changes in taxonomic opinion previously published outside the IJSEM. Int J Syst Evol Microbiol 2020; 70:4061-4090.

• Notes:
  • Loktanella sediminum is the correct name if this species is regarded as a separate species (i.e., if its nomenclatural type is not assigned to another species whose name is validly published, legitimate and not rejected and has priority) within a separate genus Loktanella.
  • According to Ludwig et al. (2021), this "species affiliates away from its type species and may 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: Loktanella Van Trappen et al. 2004

Assigned by: Liang J, Zhang Z, Liu Y, Wang M, Zhang XH. Loktanella sediminum sp. nov., isolated from marine surface sediment. Int J Syst Evol Microbiol 2015; 65:686-691.

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Record number: 792552