Species Gemmobacter nectariphilus

Name: Gemmobacter nectariphilus (Tanaka et al. 2004) Chen et al. 2013

Category, proposed as: species, comb. nov.

Basonym: Catellibacterium nectariphilum Tanaka et al. 2004

Etymology: nec.ta.ri’phi.lus. L. neut. n. nectar, nectar; N.L. adj. philus -a -um, friend, loving; from Gr. adj. philos -ê -on, loving; N.L. masc. adj. nectariphilus, loving nectar, referring to the stimulation of growth by excretions of other bacteria

Pronunciation (Latin), gender: gem-mo-BAK-ter nek-ta-RI-p^hi-lus, masculine

Type strain: AST4; DSM 15620; JCM 11959; NBRC 100046

See detailed strain information at

Conduct genome-based taxonomy at

16S rRNA gene: AB681137 Analyse FASTA

Valid publication: Chen WM, Cho NT, Huang WC, Young CC, Sheu SY. Description of Gemmobacter fontiphilus sp. nov., isolated from a freshwater spring, reclassification of Catellibacterium nectariphilum as Gemmobacter nectariphilus comb. nov., Catellibacterium changlense as Gemmobacter changlensis comb. nov., Catellibacterium aquatile as Gemmobacter aquaticus nom. nov., Catellibacterium caeni as Gemmobacter caeni comb. nov., Catellibacterium nanjingense as Gemmobacter nanjingensis comb. nov., and emended description of the genus Gemmobacter and of Gemmobacter aquatilis. Int J Syst Evol Microbiol 2013; 63:470-478. 🇹🇼

IJSEM list: Euzeby JP. Notification list. Notification that new names and new combinations have appeared in volume 63, part 2 of the IJSEM. Int J Syst Evol Microbiol 2013; 63:1581-1583.

Nomenclatural status: validly published under the ICNP

Taxonomic status: correct name

Risk group: 1

• Synonyms:

  • Name	Kind
    Wagnerdoeblera nectariphila (Tanaka et al. 2004) Hördt et al. 2020	homotypic synonym, validly published under the ICNP, illegitimate name
    Catellibacterium nectariphilum Tanaka et al. 2004	homotypic synonym, validly published under the ICNP

• Notes:
  • 😢 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. 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. 🇬🇧
  • 🧬 The phylogenomic assignment score of this taxon is -0.02905 (N = 46).
  • 😷 The risk group for Germany has been imported on 2026-08-13. 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 5 times in PubMed until 2026-06-11.
  • 🧍 The genome of the type strain was sequenced as part of the GEBA (Genomic Encyclopedia of Bacteria and Archaea) project. Publication: 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. 🇩🇪

Parent taxon: Gemmobacter Rothe et al. 1988

Assigned by: Chen WM, Cho NT, Huang WC, Young CC, Sheu SY. Description of Gemmobacter fontiphilus sp. nov., isolated from a freshwater spring, reclassification of Catellibacterium nectariphilum as Gemmobacter nectariphilus comb. nov., Catellibacterium changlense as Gemmobacter changlensis comb. nov., Catellibacterium aquatile as Gemmobacter aquaticus nom. nov., Catellibacterium caeni as Gemmobacter caeni comb. nov., Catellibacterium nanjingense as Gemmobacter nanjingensis comb. nov., and emended description of the genus Gemmobacter and of Gemmobacter aquatilis. Int J Syst Evol Microbiol 2013; 63:470-478. 🇹🇼

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Record number: 790526