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Species Leptospira biflexa
Name: Leptospira biflexa (Wolbach and Binger 1914) Noguchi 1918 (Approved Lists 1980)
Basonym: "Spirochaeta biflexa" Wolbach and Binger 1914
Etymology: bi.fle’xa. L. adv. bis, twice; L. perf. part. flexus -a -um, bent, winding; from L. v. flecto, to bend, to curve; N.L. fem. part. adj. biflexa, bent twice
Pronunciation, gender: bi-FLE-xa, feminine
Type strain: ATCC 23582; Patoc 1; Patoc I; serovar Patoc strain Patoc I
See detailed strain information at
Conduct genome-based taxonomy at
16S rRNA gene:
EU159692
Analyse
FASTA
Effective publication:
Noguchi H. MORPHOLOGICAL CHARACTERISTICS AND NOMENCLATURE OF LEPTOSPIRA (SPIROCHAETA) ICTEROHAEMORRHAGIAE (INADA AND IDO). J Exp Med 1918; 27:575-592. 
IJSEM list:
Skerman VBD, McGowan V, Sneath PHA. Approved lists of bacterial names. Int J Syst Bacteriol 1980; 30:225-420.
Nomenclatural status: validly published under the ICNP
Taxonomic status: correct name (and explicitly recommended for medical use)
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Synonyms:
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Name Kind "Spirochaeta biflexa" Wolbach and Binger 1914 homotypic synonym, not validly published, basonym of name in Approved Lists
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Emendations:
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Faine and Stallman 1982
Faine S, Stallman ND. Amended descriptions of the genus Leptospira Noguchi 1917 and the species L. interrogans (Stimson 1907) Wenyon 1926 and L. biflexa (Wolbach and Binger 1914) Noguchi 1918. Int. J. Syst. Bacteriol. 1982; 32:461-463.
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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.
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Faine and Stallman 1982
Faine S, Stallman ND. Amended descriptions of the genus Leptospira Noguchi 1917 and the species L. interrogans (Stimson 1907) Wenyon 1926 and L. biflexa (Wolbach and Binger 1914) Noguchi 1918. Int. J. Syst. Bacteriol. 1982; 32:461-463.
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Notes:
- 🧬 The phylogenomic assignment score of this taxon is 0.12036 (N = 2).
- 😷 The risk group for Canada has been imported on 2024-02-27. The full classification is: risk group = 2, note = "Animal classification RG: 1 - Security sensitive biological agent: No - Terrestrial animal pathogen under Canadian Food Inspection Agency authority: No - Containment level: Containment Level 2". — The risk group for Swiss Confederation has been imported on 2024-02-01. The full classification is: risk group = 2. — 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 211 times in PubMed until 2025-06-04.
- 🙆 This name is on the List of Recommended Names for bacteria of medical importance (LoRN) as the name to be applied to this species. The name is on LoRN because of the recorded risk group of the species itself.
- 🧍 According to the CCUG curator, CCUG 5912 was received from ATCC and never processed; was not intended for distribution. — Moore ERB. Personal communication, 2023-05-25.
Parent taxon: Leptospira Noguchi 1917 (Approved Lists 1980)
Assigned by:
Noguchi H. MORPHOLOGICAL CHARACTERISTICS AND NOMENCLATURE OF LEPTOSPIRA (SPIROCHAETA) ICTEROHAEMORRHAGIAE (INADA AND IDO). J Exp Med 1918; 27:575-592.
Linking: To permanently link to this page, use https://lpsn.dsmz.de/species/leptospira-biflexaLink copied to clipboard
Record number: 784132
This LPSN page was printed on 2025-11-11 03:01:02