Species Streptococcus difficilis

Name: Streptococcus difficilis corrig. Eldar et al. 1995

Category: Species

Proposed as: sp. nov.

Etymology: dif.fi’ci.lis. L. masc./fem. adj. difficilis, difficult, troublesome

Gender: masculine

Type strain: ATCC 51487; CIP 103768; LMG 15977; ND 2-22

16S rRNA gene: AB112407 Analyse FASTA

Effective publication: Eldar A, Bejerano Y, Bercovier H. Streptococcus shiloi and Streptococcus difficile: two new streptococcal species causing a meningoencephalitis in fish. Curr. Microbiol. 1994; 28:139-143.

IJSEM list: Anonymous. Validation list no. 52. Validation of publication of new names and new combinations previously effectively published outside the IJSB. Int J Syst Bacteriol 1995; 45:197-198.

Nomenclatural status: validly published under the ICNP

Taxonomic status: synonym

Correct name: Streptococcus agalactiae Lehmann and Neumann 1896 (Approved Lists 1980)

Risk group: 2

Synonyms:

Name	Kind
Streptococcus agalactiae Lehmann and Neumann 1896 (Approved Lists 1980)	heterotypic synonym, validly published under the ICNP, conserved name
Streptococcus difficile Eldar et al. 1995	other spelling of name, inaccurate spelling

Notes:
- According to Kawamura et al. (2005), this species is a later heterotypic synonym of Streptococcus agalactiae Lehmann and Neumann 1896 (Approved Lists 1980). Publication: Kawamura Y, Itoh Y, Mishima N, Ohkusu K, Kasai H, Ezaki T. High genetic similarity of Streptococcus agalactiae and Streptococcus difficilis: S. difficilis Eldar et al. 1995 is a later synonym of S. agalactiae Lehmann and Neumann 1896 (Approved Lists 1980). Int J Syst Evol Microbiol 2005; 55:961-965.
- Streptococcus difficilis 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 Streptococcus.
- Nom. corrig.: IJSB 48:1073; Streptococcus difficile (sic). Publication: Euzéby JP. Taxonomic note: necessary correction of specific and subspecific epithets according to Rules 12c and 13b of the International Code of Nomenclature of Bacteria (1990 Revision). Int. J. Syst. Bacteriol. 1998; 48:1073-1075.
- The original spelling of the specific epithet, difficile (sic), has been corrected by Euzéby 1998. Publication: Euzéby JP. Taxonomic note: necessary correction of specific and subspecific epithets according to Rules 12c and 13b of the International Code of Nomenclature of Bacteria (1990 Revision). Int. J. Syst. Bacteriol. 1998; 48:1073-1075.
- Vandamme et al. 1997 demonstrate that Streptococcus difficilis corrig. Eldar et al. 1995 is a group B streptococcus belonging to the capsular serotype Ib group with a whole-cell protein pattern and phenotypic characteristics similar to those of other type Ib variants of Streptococcus agalactiae Lehmann and Neumann 1896 (Approved Lists 1980). The fish isolates classified as Streptococcus difficilis corrig. could represent a distinct marine variant of Streptococcus agalactiae. Publication: Vandamme P, Devriese LA, Pot B, Kersters K, Melin P. Streptococcus difficile is a nonhemolytic group B, type Ib Streptococcus. Int J Syst Bacteriol 1997; 47:81-85.
- The full TRBA 466 classification is: risk group = 2, note = "ht".

Parent taxon: Streptococcus Rosenbach 1884 (Approved Lists 1980)

Assigned by: Eldar A, Bejerano Y, Bercovier H. Streptococcus shiloi and Streptococcus difficile: two new streptococcal species causing a meningoencephalitis in fish. Curr. Microbiol. 1994; 28:139-143.

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Record number: 781318

This LPSN page was printed on 2023-12-11 13:24:30