Name: Rufibacter quisquiliarum Felföldi et al. 2016

Category: Species

Proposed as: sp. nov.

Etymology: quis.qui.li.a’rum. L. gen. fem. pl. n. quisquiliarum, of waste, of rubbish

Gender: masculine

Type strain: CAI-18b; DSM 29854; NCAIM B.02614

See detailed strain information at

Conduct genome-based taxonomy at

16S rRNA gene: KM083132 Analyse FASTA

Valid publication: Felfoldi T, Mentes A, Schumann P, Keki Z, Mathe I, Marialigeti K, Toth EM. Rufibacter quisquiliarum sp. nov., a new member of the phylum Bacteroidetes isolated from a bioreactor treating landfill leachate. Int J Syst Evol Microbiol 2016; 66:5150-5154.

IJSEM list: Oren A, Garrity GM. Notification list. Notification that new names and new combinations have appeared in volume 66, part 12 of the IJSEM. Int J Syst Evol Microbiol 2017; 67:525-528.

Nomenclatural status: validly published under the ICNP

Taxonomic status: synonym

Correct name: Rufibacter ruber Kýrová et al. 2016

Risk group: 1

• Synonyms:

  • Name	Kind
    Rufibacter ruber Kýrová et al. 2016	heterotypic synonym, validly published under the ICNP

• Notes:
  • ⏲ According to Zhou et al. (2020), this species is a later heterotypic synonym of Rufibacter ruber Kýrová et al. 2016. Publication: Zhou J, Ma WW, Qu JH, Li HF, Yang BB, Qu LB, Wang LF. Rufibacter hautae sp. nov., a red-pigmented bacterium from freshwater lake sediment, and proposal of Rufibacter quisquiliarum as a latter heterotypic synonym of Rufibacter ruber. Int J Syst Evol Microbiol 2020; 70:5950-5957.
  • 🏢 Synonymy of this taxon was mentioned in an IJSEM list. Publication: Oren A, Garrity GM. Notification list. Notification that new names and new combinations have appeared in volume 70, part 11 of the IJSEM. Int J Syst Evol Microbiol 2021; 71:4645.
  • 😢 The terminology used by the authors is in line with many other taxonomic studies and does not negatively affect their main results; some improvements may nevertheless be possible. Contrasting the term "chemotaxonomic" with "phenotypic" is not recommended. Whether taxa can have "members" is debatable. See the LPSN phylogeny page for details. Publication: Göker M. What can genome analysis offer for bacteria? In: Bridge P, Smith D, Stackebrandt E (eds), Trends in the systematics of bacteria and fungi, CAB International, Wallingford, 2021, p. 255-281.
  • ❗ Rufibacter quisquiliarum is the correct name instead 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 Rufibacter.
  • 😷 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 3 times in PubMed until 2025-06-04.

Parent taxon: Rufibacter Abaydulla et al. 2014

Assigned by: Felfoldi T, Mentes A, Schumann P, Keki Z, Mathe I, Marialigeti K, Toth EM. Rufibacter quisquiliarum sp. nov., a new member of the phylum Bacteroidetes isolated from a bioreactor treating landfill leachate. Int J Syst Evol Microbiol 2016; 66:5150-5154.

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Record number: 794895