Name: Acetivibrio thermocellus (Viljoen et al. 1926) Tindall 2019

Category: Species

Proposed as: comb. nov.

Basonym: Clostridium thermocellum Viljoen et al. 1926 (Approved Lists 1980)

Etymology: ther.mo.cel’lus. Gr. masc. adj. thermos, hot; N.L. neut. n. cellulosum, cellulose; N.L. masc. adj. thermocellus, a thermophile that digests cellulose

Gender: masculine

Type strain: ATCC 27405; DSM 1237; JCM 9322; LMG 10435; NBRC 103400; NRRL B-4536

See detailed strain information at

Conduct genome-based taxonomy at

16S rRNA gene: AB558166 Analyse FASTA

Valid publication: Tindall BJ. The names Hungateiclostridium Zhang et al. 2018, Hungateiclostridium thermocellum (Viljoen et al. 1926) Zhang et al. 2018, Hungateiclostridium cellulolyticum (Patel et al. 1980) Zhang et al. 2018, Hungateiclostridium aldrichii (Yang et al. 1990) Zhang et al. 2018, Hungateiclostridium alkalicellulosi (Zhilina et al. 2006) Zhang et al. 2018, Hungateiclostridium clariflavum (Shiratori et al. 2009) Zhang et al. 2018, Hungateiclostridium straminisolvens (Kato et al. 2004) Zhang et al. 2018 and Hungateiclostridium saccincola (Koeck et al. 2016) Zhang et al. 2018 contravene Rule 51b of the International Code of Nomenclature of Prokaryotes and require replacement names in the genus Acetivibrio Patel et al. 1980. Int J Syst Evol Microbiol 2019; 69:3927-3932.

IJSEM list: Oren A, Garrity GM. Notification list. Notification that new names and new combinations have appeared in volume 69, part 12 of the IJSEM. Int J Syst Evol Microbiol 2020; 70:1447-1449.

Nomenclatural status: validly published under the ICNP

Taxonomic status: correct name

• Synonyms:

  • Name	Kind
    "Ruminiclostridium thermocellum" (Viljoen et al. 1926) Yutin and Galperin 2013	homotypic synonym, not validly published
    Hungateiclostridium thermocellum (Viljoen et al. 1926) Zhang et al. 2018	homotypic synonym, validly published under the ICNP, illegitimate name
    Clostridium thermocellum Viljoen et al. 1926 (Approved Lists 1980)	homotypic synonym, validly published under the ICNP

• Notes:
  • The phylogenomic assignment score of this taxon is 0.04866 (N = 44).

Parent taxon: Acetivibrio Patel et al. 1980

Assigned by: Tindall BJ. The names Hungateiclostridium Zhang et al. 2018, Hungateiclostridium thermocellum (Viljoen et al. 1926) Zhang et al. 2018, Hungateiclostridium cellulolyticum (Patel et al. 1980) Zhang et al. 2018, Hungateiclostridium aldrichii (Yang et al. 1990) Zhang et al. 2018, Hungateiclostridium alkalicellulosi (Zhilina et al. 2006) Zhang et al. 2018, Hungateiclostridium clariflavum (Shiratori et al. 2009) Zhang et al. 2018, Hungateiclostridium straminisolvens (Kato et al. 2004) Zhang et al. 2018 and Hungateiclostridium saccincola (Koeck et al. 2016) Zhang et al. 2018 contravene Rule 51b of the International Code of Nomenclature of Prokaryotes and require replacement names in the genus Acetivibrio Patel et al. 1980. Int J Syst Evol Microbiol 2019; 69:3927-3932.

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Record number: 5956