Name: Starkeya novella (Starkey 1934) Kelly et al. 2000

Category: Species

Proposed as: comb. nov.

Basonym: Thiobacillus novellus Starkey 1934 (Approved Lists 1980)

Etymology: no.vel’la. L. fem. adj. novella, new

Pronunciation (Latin), gender: … no-WEL-la, feminine

Type strain: ATCC 8093; CCM 1077; CIP 104402; CIP 106821; DSM 506; IAM 12100; IFO 12443; IFO 14993; JCM 20403; NBRC 12443; NBRC 14993; NCCB 38019; NCCB 81075; NCIB 10456; NCIB 9113; NCIMB 10456; NCIMB 9113

See detailed strain information at

Conduct genome-based taxonomy at

16S rRNA gene: D32247 Analyse FASTA

Valid publication: Kelly DP, McDonald IR, Wood AP. Proposal for the reclassification of Thiobacillus novellus as Starkeya novella gen. nov., comb. nov., in the alpha-subclass of the Proteobacteria. Int J Syst Evol Microbiol 2000; 50:1797-1802. 🇬🇧

IJSEM list: Anonymous. Notification list. Notification that new names and new combinations have appeared in volume 50, part 5 of the IJSEM. Int J Syst Evol Microbiol 2000; 50:1955.

Nomenclatural status: validly published under the ICNP

Taxonomic status: synonym (and not recommended for medical use)

Correct name: Ancylobacter novellus (Starkey 1934) Doronina et al. 2023

Risk group: 1

• Synonyms:

  • Name	Kind
    Ancylobacter novellus (Starkey 1934) Doronina et al. 2023	homotypic synonym, validly published under the ICNP
    Thiobacillus novellus Starkey 1934 (Approved Lists 1980)	homotypic synonym, validly published under the ICNP

• Emendations:
  • Hördt et al. 2020 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. 🇩🇪 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:
  • 🥇 Nomenclatural type of the genus Starkeya Kelly et al. 2000. Publication: Kelly DP, McDonald IR, Wood AP. Proposal for the reclassification of Thiobacillus novellus as Starkeya novella gen. nov., comb. nov., in the alpha-subclass of the Proteobacteria. Int J Syst Evol Microbiol 2000; 50:1797-1802. 🇬🇧
  • 📧 The e-mail address of the corresponding author given in the effective publication is not functional any more.
  • ❗ Starkeya novella 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 Starkeya.
  • 😷 The risk group for Canada has been imported on 2024-02-27. The full classification is: risk group = 1, note = "Security sensitive biological agent: No - Terrestrial animal pathogen under Canadian Food Inspection Agency authority: No". — 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 40 times in PubMed until 2025-06-04.
  • 🙅 This name is on the List of Recommended Names for bacteria of medical importance (LoRN) as a synonym of the name to be applied to this species. The name is on LoRN because of the recorded pathogenicity of other species in the genus.
  • 🧍 The genome of the type strain was sequenced as part of the DOE Joint Genome Institute Community Sequencing Programme. Publication: Kappler U, Davenport K, Beatson S, Lucas S, Lapidus A, Copeland A, Berry KW, Glavina Del Rio T, Hammon N, Dalin E, et al. Complete genome sequence of the facultatively chemolithoautotrophic and methylotrophic alpha Proteobacterium Starkeya novella type strain (ATCC 8093^T). Stand Genomic Sci 2012; 7:44-58. 🇩🇪
  • 🧍 In the paper by Kelly et al. 2000, the basonym of Starkeya novella (Starkey 1934) Kelly et al. 2000 is cited as Thiobacillus novellus Starkey 1935 (sic) (Approved Lists 1980). Publication: Starkey RL. Cultivation of Organisms Concerned in the Oxidation of Thiosulfate. J Bacteriol 1934; 28:365-386.

Parent taxon: Starkeya Kelly et al. 2000

Assigned by: Kelly DP, McDonald IR, Wood AP. Proposal for the reclassification of Thiobacillus novellus as Starkeya novella gen. nov., comb. nov., in the alpha-subclass of the Proteobacteria. Int J Syst Evol Microbiol 2000; 50:1797-1802. 🇬🇧

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Record number: 781238