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Species Bifidobacterium inopinatum
Name: Bifidobacterium inopinatum Crociani et al. 1996
Etymology: in.o.pi.na’tum. L. neut. adj. inopinatum, unexpected, referring to the very unusual morphology
Pronunciation (Latin), gender: … in-o-pi-NA-tum, neuter
Type strain: B 3109; CCUG 35729; CGMCC 1.2187; DSM 10107; JCM 12537; NCTC 12937
See detailed strain information at
Conduct genome-based taxonomy at
16S rRNA gene:
AB029087
Analyse
FASTA
Valid publication:
Crociani F, Biavati B, Alessandrini A, Chiarini C, Scardovi V. Bifidobacterium inopinatum sp. nov. and Bifidobacterium denticolens sp. nov., two new species isolated from human dental caries. Int J Syst Bacteriol 1996; 46:564-571. 
IJSEM list:
Anonymous. Notification list. Notification that new names and new combinations have appeared in volume 46, part 2 of the IJSB. Int J Syst Bacteriol 1996; 46:838.
Nomenclatural status: validly published under the ICNP
Taxonomic status: synonym (and not recommended for medical use)
Correct name: Scardovia inopinata (Crociani et al. 1996) Jian and Dong 2002
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Synonyms:
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Name Kind Scardovia inopinata (Crociani et al. 1996) Jian and Dong 2002 homotypic synonym, validly published under the ICNP
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Notes:
- ❗ Bifidobacterium inopinatum 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 Bifidobacterium.
- 😷 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 = 2, note = "PIIC". — The risk group for Germany has been imported on 2023-10-29. The full classification is: risk group = 1, note = "+". — 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 4 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 risk group of the species itself.
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🧍 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 (Reading) 2022; 168:0. 🇬🇧
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🧍 On the basis of HSP60 DNA sequences, Bifidobacterium inopinatum Crociani et al. 1996 and Bifidobacterium denticolens Crociani et al. 1996 are quite distant from other Bifidobacterium species. This result is in accordance with that of 16S rRNA sequence homology analysis, and led to the view that these two organisms should be removed from the genus Bifidobacterium Orla-Jensen 1924 (Approved Lists 1980) and proposed as new genera in the family Bifidobacteriaceae Stackebrandt et al. 1997.
Publication:
Jian W, Zhu L, Dong X. New approach to phylogenetic analysis of the genus Bifidobacterium based on partial HSP60 gene sequences. Int J Syst Evol Microbiol 2001; 51:1633-1638. 🇨🇳
Parent taxon: Bifidobacterium Orla-Jensen 1924 (Approved Lists 1980)
Assigned by:
Crociani F, Biavati B, Alessandrini A, Chiarini C, Scardovi V. Bifidobacterium inopinatum sp. nov. and Bifidobacterium denticolens sp. nov., two new species isolated from human dental caries. Int J Syst Bacteriol 1996; 46:564-571.
Linking: To permanently link to this page, use https://lpsn.dsmz.de/species/bifidobacterium-inopinatumLink copied to clipboard
Record number: 774040
This LPSN page was printed on 2026-02-09 21:50:06