Species Lactobacillus malefermentans

Name: Lactobacillus malefermentans (ex Russell and Walker 1953) Farrow et al. 1989

Category: Species

Proposed as: sp. nov., nom. rev.

Etymology: ma.le.fer.men’tans. L. fem. n. malus, bad; L. pres. part. fermentans, fermenting; N.L. masc. part. adj. malefermentans, badly fermenting, referring to spoiled beer

Pronunciation (Latin), gender: … ma-le-fer-MEN-tans, masculine

Type strain: CCUG 32206; CIP 103367; DSM 5705; IFO 15905; JCM 12497; LMG 11455; NBRC 15905; NCDO 1410; NCFB 1410; NCIMB 701410; Strain D2 MF1

See detailed strain information at

Conduct genome-based taxonomy at

16S rRNA gene: AB680994 Analyse FASTA

Effective publication: Farrow JAE, Phillips BA, Collins MD. Nucleic acid studies on some heterofermentative lactobacilli: description of Lactobacillus malefermentans sp. nov. and Lactobacillus parabuchneri sp. nov. FEMS Microbiol. Lett. 1988; 55:163-168.

IJSEM list: Anonymous. Validation list no. 30. Validation of publication of new names and new combinations previously effectively published outside the IJSB. Int J Syst Bacteriol 1989; 39:371.

Nomenclatural status: validly published under the ICNP

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

Correct name: Secundilactobacillus malefermentans (Farrow et al. 1989 ex Russell and Walker 1953) Zheng et al. 2020

Risk group: 1

Synonyms:

Name	Kind
Secundilactobacillus malefermentans (Farrow et al. 1989 ex Russell and Walker 1953) Zheng et al. 2020	homotypic synonym, validly published under the ICNP

Notes:
- 😩 Deposit incorrectly indicated in some sources as representing the type strain of this taxon: ATCC 49373.
- ❗ Lactobacillus malefermentans 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 Lactobacillus.
- 😷 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 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 5 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 other species in the genus.
- 🧍 The year of publication of the reference of the paper by Farrow et al. must be 1988, not 1986 as cited in the Validation List no. 30. This error is derived from the error by the publisher of FEMS Microbiology Letter. — Kudo T. Personal communication, 2005-01-14.

Parent taxon: Lactobacillus Beijerinck 1901 (Approved Lists 1980)

Assigned by: Farrow JAE, Phillips BA, Collins MD. Nucleic acid studies on some heterofermentative lactobacilli: description of Lactobacillus malefermentans sp. nov. and Lactobacillus parabuchneri sp. nov. FEMS Microbiol. Lett. 1988; 55:163-168.

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Record number: 10944

This LPSN page was printed on 2026-02-15 05:27:40

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Species Lactobacillus malefermentans