Name: Defluviicoccus vanus corrig. Maszenan et al. 2005

Category: Species

Proposed as: sp. nov.

Etymology: va.nus. L. masc. adj. vanus, empty, idle, referring to its staining behaviour

Gender: masculine

Type strain: Ben 114; CIP 107350; NCIMB 13612

See detailed strain information at

Conduct genome-based taxonomy at

16S rRNA gene: AF179678 Analyse FASTA

Valid publication: Maszenan AM, Seviour RJ, Patel BK, Janssen PH, Wanner J. Defluvicoccus vanus gen. nov., sp. nov., a novel Gram-negative coccus/coccobacillus in the 'Alphaproteobacteria' from activated sludge. Int J Syst Evol Microbiol 2005; 55:2105-2111.

IJSEM list: Euzeby JP. Notification list. Notification that new names and new combinations have appeared in volume 55, part 5 of the IJSEM. Int J Syst Evol Microbiol 2006; 56:7-9.

Nomenclatural status: validly published under the ICNP

Taxonomic status: correct name

• Synonyms:

  • Name	Kind
    Defluvicoccus vanus Maszenan et al. 2005	other spelling of name, inaccurate spelling

• Notes:
  • 🥇 Nomenclatural type of the genus Defluviicoccus corrig. Maszenan et al. 2005. Publication: Maszenan AM, Seviour RJ, Patel BK, Janssen PH, Wanner J. Defluvicoccus vanus gen. nov., sp. nov., a novel Gram-negative coccus/coccobacillus in the 'Alphaproteobacteria' from activated sludge. Int J Syst Evol Microbiol 2005; 55:2105-2111.
  • 😢 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. Using the term "phylogenetic data" (or equivalent) for sequence data is not advocated. 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.
  • 🎓 Name mentioned 10 times in PubMed until 2024-03-27.
  • 🧍 According to Ludwig et al. (2021), this "species classified within the Geminicoccaceae is susceptible to being reclassified as a different family". 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.
  • 🧍 The original spelling, Defluvicoccus (sic) vanus, has been corrected on notification with the authors' agreement. Publication: Euzeby JP. Notification list. Notification that new names and new combinations have appeared in volume 55, part 5 of the IJSEM. Int J Syst Evol Microbiol 2006; 56:7-9.

Parent taxon: Defluviicoccus corrig. Maszenan et al. 2005

Assigned by: Maszenan AM, Seviour RJ, Patel BK, Janssen PH, Wanner J. Defluvicoccus vanus gen. nov., sp. nov., a novel Gram-negative coccus/coccobacillus in the 'Alphaproteobacteria' from activated sludge. Int J Syst Evol Microbiol 2005; 55:2105-2111.

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Record number: 775448