Name: Psychroserpens mesophilus Kwon et al. 2006

Category: Species

Proposed as: sp. nov.

Etymology: me.so.phi’lus. Gr. masc. adj. mesos, middle; N.L. masc. adj. suff. -philus, loving; N.L. masc. adj. mesophilus, middle (temperature)-loving, mesophilic

Gender: masculine

Type strain: JCM 13413; KCCM 42261; KOPRI 13649

See detailed strain information at

Conduct genome-based taxonomy at

16S rRNA gene: DQ001321 Analyse FASTA

Valid publication: Kwon KK, Lee SJ, Park JH, Ahn TY, Lee HK. Psychroserpens mesophilus sp. nov., a mesophilic marine bacterium belonging to the family Flavobacteriaceae isolated from a young biofilm. Int J Syst Evol Microbiol 2006; 56:1055-1058.

IJSEM list: Euzeby JP. Notification list. Notification that new names and new combinations have appeared in volume 56, part 5 of the IJSEM. Int J Syst Evol Microbiol 2006; 56:1719-1720.

Nomenclatural status: validly published under the ICNP

Taxonomic status: correct name

Risk group: 1

• Emendations:
  • García-López et al. 2019 Garcia-Lopez M, Meier-Kolthoff JP, Tindall BJ, Gronow S, Woyke T, Kyrpides NC, Hahnke RL, Goker M. Analysis of 1,000 Type-Strain Genomes Improves Taxonomic Classification of Bacteroidetes. Front Microbiol 2019; 10:2083. 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:
  • 😷 The risk group for Germany has been imported on 2023-10-29. The full classification is: risk group = 1.
  • 🎓 Name mentioned 5 times in PubMed until 2024-03-28.
  • 🧍 According to Ludwig et al. (2021), this "species affiliates away from its type species and may be reclassified as a new genus together with P. jangbogonensis". 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: Psychroserpens Bowman et al. 1997

Assigned by: Kwon KK, Lee SJ, Park JH, Ahn TY, Lee HK. Psychroserpens mesophilus sp. nov., a mesophilic marine bacterium belonging to the family Flavobacteriaceae isolated from a young biofilm. Int J Syst Evol Microbiol 2006; 56:1055-1058.

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Record number: 784751