Name: Acetivibrio cellulolyticus Patel et al. 1980

Category: Species

Proposed as: sp. nov.

Etymology: cel.lu.lo.ly’ti.cus. N.L. neut. n. cellulosum, cellulose; N.L. masc. adj. lyticus, able to loose, able to dissolve; from Gr. masc. adj. lytikos, dissolving; N.L. masc. adj. cellulolyticus, cellulose-dissolving [probably better: cellulosilyticus]

Pronunciation, gender: kel-lu-lo-LY-ti-kus, masculine

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: Patel GB, Khan AW, Agnew BJ, Colvin JR. Isolation and characterization of an anaerobic, cellulolytic microorganism, Acetivibrio cellulolyticus gen. nov., sp. nov. Int. J. Syst. Bacteriol. 1980; 30:179-185.

Nomenclatural status: validly published under the ICNP

Taxonomic status: correct name (and explicitly recommended for medical use)

Risk group: 1

• Synonyms:

  • Name	Kind
    Hungateiclostridium cellulolyticum (Patel et al. 1980) Zhang et al. 2018	homotypic synonym, validly published under the ICNP, illegitimate name
    Acetivibrio cellulosolvens Khan et al. 1984	heterotypic synonym, validly published under the ICNP

• Notes:
  • 🥇 Nomenclatural type of the genus Acetivibrio Patel et al. 1980. Publication: Patel GB, Khan AW, Agnew BJ, Colvin JR. Isolation and characterization of an anaerobic, cellulolytic microorganism, Acetivibrio cellulolyticus gen. nov., sp. nov. Int. J. Syst. Bacteriol. 1980; 30:179-185.
  • ⏰ 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.
  • 😷 The risk group for Canada has been imported on 2024-02-27. The full classification is: risk group = 1, note = "Animal classification RG: 1 - Security sensitive biological agent: No - Terrestrial animal pathogen under Canadian Food Inspection Agency authority: No - Containment level: Containment Level 1". — 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 39 times in PubMed until 2025-06-04.
  • 🙆 This name is on the List of Recommended Names for bacteria of medical importance (LoRN) as 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: Acetivibrio Patel et al. 1980

Assigned by: Patel GB, Khan AW, Agnew BJ, Colvin JR. Isolation and characterization of an anaerobic, cellulolytic microorganism, Acetivibrio cellulolyticus gen. nov., sp. nov. Int. J. Syst. Bacteriol. 1980; 30:179-185.

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Record number: 772481