Name: Hungateiclostridium cellulolyticum (Patel et al. 1980) Zhang et al. 2018

Category: Species

Proposed as: comb. nov.

Basonym: Acetivibrio cellulolyticus Patel et al. 1980

Etymology: cel.lu.lo.ly’ti.cum. N.L. neut. n. cellulosum, cellulose; N.L. neut. adj. lyticum, able to loosen, able to dissolve; from Gr. neut. adj. lytikon, able to loose, dissolving; N.L. neut. adj. cellulolyticum, cellulose-dissolving [probably better: cellulosilyticum]

Pronunciation, gender: kel-lu-lo-LY-ti-kum, neuter

Type strain: ATCC 33288; CD2; DSM 1870; LMG 8466; NRC 2248

See detailed strain information at

Conduct genome-based taxonomy at

16S rRNA gene: L35516 Analyse FASTA

Valid publication: Zhang X, Tu B, Dai LR, Lawson PA, Zheng ZZ, Liu LY, Deng Y, Zhang H, Cheng L. Petroclostridium xylanilyticum gen. nov., sp. nov., a xylan-degrading bacterium isolated from an oilfield, and reclassification of clostridial cluster III members into four novel genera in a new Hungateiclostridiaceae fam. nov. Int J Syst Evol Microbiol 2018; 68:3197-3211.

IJSEM list: Oren A, Garrity GM. Notification list. Notification that new names and new combinations have appeared in volume 68, part 10 of the IJSEM. Int J Syst Evol Microbiol 2019; 69:10-12.

Nomenclatural status: validly published under the ICNP, illegitimate name

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

Correct name: Acetivibrio cellulolyticus Patel et al. 1980

• Synonyms:

  • Name	Kind
    Acetivibrio cellulolyticus Patel et al. 1980	homotypic synonym, validly published under the ICNP
    Acetivibrio cellulosolvens Khan et al. 1984	heterotypic synonym, validly published under the ICNP

• Notes:
  • ⏰ According to Murray (1986), this species is an earlier heterotypic synonym of Acetivibrio cellulosolvens Khan et al. 1984. Publication: Murray WD. Acetivibrio cellulosolvens is a synonym for Acetivibrio cellulolyticus: emendation of the genus Acetivibrio. Int. J. Syst. Bacteriol. 1986; 36:314-316.
  • ⏰ According to Tindall (2019), this species is an earlier heterotypic synonym of Acetivibrio cellulosolvens Khan et al. 1984. 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.
  • 🏢 Synonymy of this taxon was mentioned in an IJSEM list. Publication: 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.
  • 🎓 Name mentioned 1 time 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.

Parent taxon: Hungateiclostridium Zhang et al. 2018

Assigned by: Zhang X, Tu B, Dai LR, Lawson PA, Zheng ZZ, Liu LY, Deng Y, Zhang H, Cheng L. Petroclostridium xylanilyticum gen. nov., sp. nov., a xylan-degrading bacterium isolated from an oilfield, and reclassification of clostridial cluster III members into four novel genera in a new Hungateiclostridiaceae fam. nov. Int J Syst Evol Microbiol 2018; 68:3197-3211.

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Record number: 798414