Name: Psychroflexus tropicus Donachie et al. 2004

Category: Species

Proposed as: sp. nov.

Etymology: tro’pi.cus. L. masc. adj. tropicus, tropical, of or pertaining to the tropic(s) or solstice, relating to its isolation from a subtropical lake

Pronunciation (Latin), gender: … TRO-pi-kus, masculine

Type strain: ATCC BAA-734; DSM 15496; LA1

See detailed strain information at

Conduct genome-based taxonomy at

16S rRNA gene: AF513434 Analyse FASTA

Valid publication: Donachie SP, Bowman JP, Alam M. Psychroflexus tropicus sp. nov., an obligately halophilic Cytophaga-Flavobacterium-Bacteroides group bacterium from an Hawaiian hypersaline lake. Int J Syst Evol Microbiol 2004; 54:935-940. 🇺🇸

IJSEM list: Euzeby JP. Notification list. Notification that new names and new combinations have appeared in volume 54, part 3 of the IJSEM. Int J Syst Evol Microbiol 2004; 54:1427-1428.

Nomenclatural status: validly published under the ICNP

Taxonomic status: correct name

Risk group: 1

• Emendations:
  • Hahnke et al. 2016 Hahnke RL, Meier-Kolthoff JP, Garcia-Lopez M, Mukherjee S, Huntemann M, Ivanova NN, Woyke T, Kyrpides NC, Klenk HP, Goker M. Genome-Based Taxonomic Classification of Bacteroidetes. Front Microbiol 2016; 7:2003. 🇩🇪 Oren A, Garrity GM. List of changes in taxonomic opinion no. 26. Notification of changes in taxonomic opinion previously published outside the IJSEM. Int J Syst Evol Microbiol 2017; 67:2081-2086.
    Notes:
    • 🧍 The genome of the type strain was sequenced as part of the GEBA (Genomic Encyclopedia of Bacteria and Archaea) project.

• 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 1 time in PubMed until 2025-06-04.

Parent taxon: Psychroflexus Bowman et al. 1999

Assigned by: Donachie SP, Bowman JP, Alam M. Psychroflexus tropicus sp. nov., an obligately halophilic Cytophaga-Flavobacterium-Bacteroides group bacterium from an Hawaiian hypersaline lake. Int J Syst Evol Microbiol 2004; 54:935-940. 🇺🇸

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Record number: 780253