Name: Exiguobacterium aurantiacum Collins et al. 1984

Category: Species

Proposed as: sp. nov.

Etymology: au.ran.ti’a.cum. L. neut. n. aurum, gold; N.L. neut. n. Aurantium, generic name of the orange; L. neut. suff. -acum, adjectival suffix used with the sense of belonging to; N.L. neut. adj. aurantiacum, orange-colored

Gender: neuter

Type strain: ATCC 35652; CCUG 44910; CIP 103353; DSM 6208; IFO 14763; NBRC 14763; NCIB 11798; NCIMB 11798

See detailed strain information at

Conduct genome-based taxonomy at

16S rRNA gene: AB680657 Analyse FASTA

Effective publication: Collins MD, Lund BM, Farrow JAE, Schleifer KH. Chemotaxonomic study of an alkalophilic bacterium, Exiguobacterium aurantiacum gen. nov., sp. nov. J. Gen. Microbiol. 1983; 129:2037-2042.

IJSEM list: Anonymous. Validation list no. 13. Validation of publication of new names and new combinations previously effectively published outside the IJSB. Int J Syst Bacteriol 1984; 34:91-92.

Nomenclatural status: validly published under the ICNP

Taxonomic status: correct name

Risk group: 1

• Notes:
  • 🥇 Nomenclatural type of the genus Exiguobacterium Collins et al. 1984. Publication: Collins MD, Lund BM, Farrow JAE, Schleifer KH. Chemotaxonomic study of an alkalophilic bacterium, Exiguobacterium aurantiacum gen. nov., sp. nov. J. Gen. Microbiol. 1983; 129:2037-2042.
  • 😷 The risk group for Canada has been imported on 2024-02-27. The full classification is: risk group = 1, note = "Animal classification RG: 1 - Security sensitive biological agent: No - Terrestrial animal pathogen under Canadian Food Inspection Agency authority: No - Containment level: Containment Level 1". — The risk group for Swiss Confederation has been imported on 2024-02-01. The full classification is: risk group = 1. — 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 38 times in PubMed until 2024-03-27.
  • 🧍 According to Bartlett et al. (2022), this species is an established human pathogen. Publication: Bartlett A, Padfield D, Lear L, Bendall R, Vos M. A comprehensive list of bacterial pathogens infecting humans. Microbiology 2022; 168:0.

Parent taxon: Exiguobacterium Collins et al. 1984

Assigned by: Collins MD, Lund BM, Farrow JAE, Schleifer KH. Chemotaxonomic study of an alkalophilic bacterium, Exiguobacterium aurantiacum gen. nov., sp. nov. J. Gen. Microbiol. 1983; 129:2037-2042.

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Record number: 776141