Name: Peptostreptococcus heliotrinreducens (Lanigan 1983) Ezaki and Yabuuchi 1986

Category: Species

Proposed as: comb. nov.

Basonym: Peptococcus heliotrinreducens corrig. Lanigan 1983

Etymology: he.li.o.trin.re.du.cens. N.L. neut. n. heliotrinum, heliotrine, a pyrrolizidine alkaloid; L. pres. part. reducens, leading back, bringing back and in chemistry converting to a different oxidation state; N.L. part. adj. heliotrinreducens, referring to the organisms ability to bring about oxidative cleavage of the heliotrine molecule

Gender: masculine

Type strain: ATCC 29202; CCUG 47954; DSM 20476; JCM 14554; NCTC 11029; RHS 1

See detailed strain information at

Conduct genome-based taxonomy at

16S rRNA gene: AF101241 Analyse FASTA

Valid publication: Ezaki T, Yabuuchi E. Transfer of Peptococcus heliotrinreducens corrig. to the genus Peptostreptococcus: Peptostreptococcus heliotrinreducens Lanigan 1983 comb. nov. Int. J. Syst. Bacteriol. 1986; 36:107-108.

Nomenclatural status: validly published under the ICNP

Taxonomic status: synonym

Correct name: Slackia heliotrinireducens corrig. (Lanigan 1983) Wade et al. 1999

Risk group: 1

• Synonyms:

  • Name	Kind
    Peptococcus heliotrinreducens corrig. Lanigan 1983	homotypic synonym, validly published under the ICNP
    Peptococcus heliotrinreducans Lanigan 1983	homotypic synonym, inaccurate spelling
    Peptococcus helotrinreducens Lanigan 1983	homotypic synonym, inaccurate spelling
    Slackia heliotrinireducens corrig. (Lanigan 1983) Wade et al. 1999	homotypic synonym, validly published under the ICNP
    Slackia heliotrinreducens (Lanigan 1983) Wade et al. 1999	homotypic synonym, inaccurate spelling

• Notes:
  • Peptostreptococcus heliotrinreducens is the correct name 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 Peptostreptococcus.
  • The specific epithet heliotrinreducens (sic) has been corrected in the new combination Slackia heliotrinireducens [see, Slackia heliotrinireducens corrig. (Lanigan 1983) Wade et al. 1999, comb. nov.]. However the name "Peptostreptococcus heliotrinireducens" corrig. has never been formally proposed before December 14, 2000 (date of publication of the amended Rule 61; see Int. J. Syst. Evol. Microbiol., 2000, 50, page 2239, column 2). Consequently, in the "List of Prokaryotic names with Standing in Nomenclature", the epithet heliotrinreducens (sic) has been maintained for Peptostreptococcus heliotrinreducens. Publication: Wade WG, Downes J, Dymock D, Hiom SJ, Weightman AJ, Dewhirst FE, Paster BJ, Tzellas N, Coleman B. The family Coriobacteriaceae: reclassification of Eubacterium exiguum (Poco et al. 1996) and Peptostreptococcus heliotrinreducens (Lanigan 1976) as Slackia exigua gen. nov., comb. nov. and Slackia heliotrinireducens gen. nov., comb. nov., and Eubacterium lentum (Prevot 1938) as Eggerthella lenta gen. nov., comb. nov. Int J Syst Bacteriol 1999; 49:595-600.
  • The full TRBA 466 classification is: risk group = 1, note = "+".

Parent taxon: Peptostreptococcus Kluyver and van Niel 1936 (Approved Lists 1980)

Assigned by: Ezaki T, Yabuuchi E. Transfer of Peptococcus heliotrinreducens corrig. to the genus Peptostreptococcus: Peptostreptococcus heliotrinreducens Lanigan 1983 comb. nov. Int. J. Syst. Bacteriol. 1986; 36:107-108.

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Record number: 779382