Name: Enterobacter Hormaeche and Edwards 1960 (Approved Lists 1980)

Category: Genus

Proposed as: gen. nov.

Etymology: En.te.ro.bac’ter. Gr. neut. n. enteron, intestine; N.L. masc. n. bacter, a small rod; N.L. masc. n. Enterobacter, intestinal small rod

Gender: masculine (stem: Enterobacter-)

Type species: Enterobacter cloacae (Jordan 1890) Hormaeche and Edwards 1960 (Approved Lists 1980)

Conduct genome-based taxonomy of genus at TYGS

16S rRNA gene: Analyse FASTA

Effective publication: Hormaeche E, Edwards PR. A proposed genus Enterobacter. International Bulletin of Bacteriological Nomenclature and Taxonomy 1960; 10:71-74.

IJSEM list: Skerman VBD, McGowan V, Sneath PHA. Approved lists of bacterial names. Int J Syst Bacteriol 1980; 30:225-420.

Nomenclatural status: validly published under the ICNP, conserved name

Taxonomic status: correct name

Risk group: 2

• Synonyms:

  • Name	Kind
    "Cloaca" Castellani and Chalmers 1919	homotypic synonym, not validly published

• Emendations:
  • Brady et al. 2013 Brady C, Cleenwerck I, Venter S, Coutinho T, De Vos P. Taxonomic evaluation of the genus Enterobacter based on multilocus sequence analysis (MLSA): proposal to reclassify E. nimipressuralis and E. amnigenus into Lelliottia gen. nov. as Lelliottia nimipressuralis comb. nov. and Lelliottia amnigena comb. nov., respectively, E. gergoviae and E. pyrinus into Pluralibacter gen. nov. as Pluralibacter gergoviae comb. nov. and Pluralibacter pyrinus comb. nov., respectively, E. cowanii, E. radicincitans, E. oryzae and E. arachidis into Kosakonia gen. nov. as Kosakonia cowanii comb. nov., Kosakonia radicincitans comb. nov., Kosakonia oryzae comb. nov. and Kosakonia arachidis comb. nov., respectively, and E. turicensis, E. helveticus and E. pulveris into Cronobacter as Cronobacter zurichensis nom. nov., Cronobacter helveticus comb. nov. and Cronobacter pulveris comb. nov., respectively, and emended description of the genera Enterobacter and Cronobacter. Syst Appl Microbiol 2013; 36:309-319. Oren A, Garrity GM. List of changes in taxonomic opinion no. 19. Notification of changes in taxonomic opinion previously published outside the IJSEM. Int J Syst Evol Microbiol 2014; 64:8-10.
    Notes:
    • ⊖ Emendation accompanied by the removal of 11 species from the genus.

• Notes:
  • 🥇 Nomenclatural type of the family Enterobacteraceae (ex Lapage 1979) Lapage 1982. Publication: Lapage SP. Proposal of Enterobacteraceae fam. nov., nom. rev. as a substitute for the family name Enterobacteriaceae Rahn 1937. Int. J. Syst. Bacteriol. 1982; 32:237-238.
  • 🥇 Nomenclatural type of the order Enterobacterales Adeolu et al. 2016. Publication: Adeolu M, Alnajar S, Naushad S, S Gupta R. Genome-based phylogeny and taxonomy of the 'Enterobacteriales': proposal for Enterobacterales ord. nov. divided into the families Enterobacteriaceae, Erwiniaceae fam. nov., Pectobacteriaceae fam. nov., Yersiniaceae fam. nov., Hafniaceae fam. nov., Morganellaceae fam. nov., and Budviciaceae fam. nov. Int J Syst Evol Microbiol 2016; 66:5575-5599.
  • 🧕 Adeolu et al. (2016) assigned this genus to the order Enterobacterales Adeolu et al. 2016. Publication: Adeolu M, Alnajar S, Naushad S, S Gupta R. Genome-based phylogeny and taxonomy of the 'Enterobacteriales': proposal for Enterobacterales ord. nov. divided into the families Enterobacteriaceae, Erwiniaceae fam. nov., Pectobacteriaceae fam. nov., Yersiniaceae fam. nov., Hafniaceae fam. nov., Morganellaceae fam. nov., and Budviciaceae fam. nov. Int J Syst Evol Microbiol 2016; 66:5575-5599.
  • 🧕 Lapage (1982) assigned this genus to the family Enterobacteraceae (ex Lapage 1979) Lapage 1982. Publication: Lapage SP. Proposal of Enterobacteraceae fam. nov., nom. rev. as a substitute for the family name Enterobacteriaceae Rahn 1937. Int. J. Syst. Bacteriol. 1982; 32:237-238.
  • 🚋 The type species of this genus has alternatively been placed in the genus Bacillus Cohn 1872 (Approved Lists 1980). Publication: Jordan EO. A report on certain species of bacteria observed in sewage. In: Sedgewick WT (eds), A report of the biological work of the Lawrence Experiment Station, including an account of methods employed and results obtained in the microscopical and bacteriological investigation of sewage and water. Report on water supply and sewerage (Part II). Report of the Massachusetts Board of Public Health, Massachusetts Board of Public Health, Boston, 1890, p. 821-844.
  • 🚋 The type species of this genus has alternatively been placed in the genus "Cloaca" Castellani and Chalmers 1919. Publication: Castellani A, Chalmers AJ. A Manual of Tropical Medicine. 3rd ed. William Wood and Co, New York, 1919.
  • 🚋 The type species of this genus has alternatively been placed in the genus "Bacterium" Ehrenberg 1831. Publication: Lehmann KB, Neumann R. Atlas und Grundriss der Bakteriologie und Lehrbuch der speziellen bakteriologischen Diagnostik. Teil 2: Text, 1st ed. J.F. Lehmann, München, 1896.
  • 🙄 This taxon name is occasionally misprinted (or affected by an OCR error) in some sources as: "Emerobacter"; "Enferobacter"; "Enierobacter"; "Enlerobacter"; "Enlerohacler"; "Enrerobacter"; "Entcrobaclcr"; "Entcrobacler"; "Entcrobacter"; "Enteirobacter"; "Enteobacter"; "Enterabacter"; "Enteribacter"; "Enterobactcr"; "Enterobucter"; "Enterohucter"; "Enteroobacter"; "Entherobacter"; "Entorobacter"; "Entrobacter"; "Enzerobacter"; "Etiterobacter"; "Imterobacter"; "Znterobacter". — 🤨 This taxon name is occasionally used in plural form as: "Enterobacteria"; "Enterobacteriae".
  • 🧔 This taxon was discussed in a meeting of a Taxonomic Subcommittee of the ICSP. Publication: Holmes B, Farmer Iii JJ. International Committee on Systematics of Prokaryotes Subcommittee on the taxonomy of Enterobacteriaceae. Minutes of the meetings, 7 August 2008, Istanbul, Turkey. Int. J. Syst. Evol. Microbiol. 2009; 59:2643-2645.
  • 💁 Taxonomists who have recently focused on this group are the corresponding authors of Hoffmann et al. (2005), He et al. (2024), Ma et al. (2020), Stephan et al. (2014), Li et al. (2016). Editors in search of reviewers are advised to consider additional criteria such as whether a taxon is covered by one of the ICSP subcommittees.
  • 🧬 The phylogenomic assignment score of this taxon is 0.06492 (N = 7).
  • 🎰 The BRCs most frequently used for deposits in this group are: DSM: 32; CCUG: 27; JCM: 21; CIP: 20; ATCC: 18; NCTC: 15; KCTC: 9; NBRC: 7; ICMP: 5; NBIMCC: 4.
  • 😷 The risk group for Canada has been imported on 2024-02-27. The full classification is: risk group = 2, note = "c6-6: 1 Animal classification RG: 1 - Security sensitive biological agent: No - Containment level: Containment Level 1; default: 2 Animal classification RG: 2 - Security sensitive biological agent: No - Terrestrial animal pathogen under Canadian Food Inspection Agency authority: No - Containment level: Containment Level 2". — The risk group for France has been imported on 2024-08-30. The full classification is: risk group = 2. — The risk group for Sweden has been imported on 2024-02-05. The full classification is: risk group = 2. — The risk group for Taiwan has been imported on 2024-11-03. The full classification is: risk group = 2, note = "P650 = v". — The risk group for United Kingdom has been imported on 2024-01-31. The full classification is: risk group = 2. — 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.
  • 🧍 Pittman et al. (1991) suggested the abbreviation "ENBT" for this genus name but this does not appear to be of practical relevance any longer. Publication: Pittman KF, Walczak CA, Lock CM. Codes and abbreviations for approved of effectively published names of genera of bacteria published from January 1980 to December 1990. Int J Syst Bacteriol 1991; 41:571-579.
  • 🧍 Conserved name (Judicial Opinion 28). Rejection of the name Cloaca Castellani and Chalmers and conservation of its counterpart. Publication: Judicial Commission. Judicial Opinion No. 28. Int J Syst Bacteriol 1963; 13:38.
  • 🧍 According to the Judicial Opinion 15, the genus Enterobacter Hormaeche and Edwards 1960 (Approved Lists 1980) is an exception to Rules 15 and 21a because it is not the type genus of the family Enterobacteriaceae Rahn 1937 (Approved Lists 1980). The Judicial Opinion 15 states that the nomenclatural type of the family Enterobacteriaceae Rahn 1937 (Approved Lists 1980) is the the genus Escherichia Castellani and Chalmers 1919 (Approved Lists 1980). Publication: Judicial Commission. Judicial Opinion No. 15. Int J Syst Bacteriol 1958; 8:73-74.

Subdivision:

Number of child taxa with a validly published and correct name: 27
Number of child taxa with a validly published name, including synonyms: 51
Total number of child taxa: 60

• Child taxa:

  • Name	Nomenclatural status	Taxonomic status
    "Enterobacter adelaidei" Siderius et al. 2024	not validly published	preferred name (not correct name)
    Enterobacter aerogenes Hormaeche and Edwards 1960 (Approved Lists 1980)	validly published under the ICNP	synonym
    Enterobacter agglomerans (Beijerinck 1888) Ewing and Fife 1972 (Approved Lists 1980)	validly published under the ICNP	synonym
    Enterobacter amnigenus Izard et al. 1981	validly published under the ICNP	synonym
    Enterobacter arachidis Madhaiyan et al. 2010	validly published under the ICNP	synonym
    Enterobacter asburiae Brenner et al. 1988	validly published under the ICNP	correct name
    Enterobacter bugandensis Doijad et al. 2016	validly published under the ICNP	correct name
    Enterobacter cancerogenus (Urosevic 1966) Dickey and Zumoff 1988	validly published under the ICNP	correct name
    Enterobacter chengduensis Wu et al. 2019	validly published under the ICNP	correct name
    Enterobacter chinensis He et al. 2025	validly published under the ICNP	correct name
    Enterobacter chuandaensis Wu et al. 2019	validly published under the ICNP	correct name
    Enterobacter cloacae (Jordan 1890) Hormaeche and Edwards 1960 (Approved Lists 1980)	validly published under the ICNP	correct name
    Enterobacter cowanii Inoue et al. 2001	validly published under the ICNP	synonym
    Enterobacter dissolvens (Rosen 1922) Brenner et al. 1988	validly published under the ICNP	synonym
    Enterobacter dykesii Cho et al. 2021	validly published under the ICNP	correct name
    "Enterobacter faecalis" Riegel et al. 1995	not validly published	preferred name (not correct name)
    Enterobacter gergoviae Brenner et al. 1980	validly published under the ICNP	synonym
    Enterobacter helveticus Stephan et al. 2007	validly published under the ICNP	synonym
    "Enterobacter hoffmannii" (Sutton et al. 2018) Wu et al. 2020	not validly published	synonym (and no standing)
    Enterobacter hormaechei O'Hara et al. 1990	validly published under the ICNP	correct name
    Enterobacter huaxiensis Wu et al. 2019	validly published under the ICNP	correct name
    Enterobacter intermedium Izard et al. 1980	inaccurate spelling	misspelling
    Enterobacter intermedius corrig. Izard et al. 1980	validly published under the ICNP	synonym
    Enterobacter kobei Kosako et al. 1997	validly published under the ICNP	correct name
    "Enterobacter lignolyticus" Deangelis et al. 2011	not validly published	preferred name (not correct name)
    "Enterobacter liquefaciens" Davis and Ewing 1964	not validly published	preferred name (not correct name)
    Enterobacter ludwigii Hoffmann et al. 2005	validly published under the ICNP	correct name
    Enterobacter massiliensis Lagier et al. 2014	validly published under the ICNP	synonym
    Enterobacter mori Zhu et al. 2011	validly published under the ICNP	correct name
    Enterobacter muelleri Kämpfer et al. 2015	validly published under the ICNP	synonym
    Enterobacter nematophilus Machado et al. 2023	validly published under the ICNP	correct name
    Enterobacter nimipressuralis (Carter 1945) Brenner et al. 1988	validly published under the ICNP	synonym
    Enterobacter oligotrophica Akita et al. 2020	inaccurate spelling	misspelling
    Enterobacter oligotrophicus corrig. Akita et al. 2020	validly published under the ICNP	correct name
    Enterobacter oryzae Peng et al. 2009	validly published under the ICNP	synonym
    Enterobacter oryzendophyticus Hardoim et al. 2015	validly published under the ICNP	synonym
    Enterobacter oryziphilus Hardoim et al. 2015	validly published under the ICNP	synonym
    Enterobacter pasteurii Rahi et al. 2024	validly published under the ICNP	correct name
    Enterobacter pseudoroggenkampii Wu et al. 2024	validly published under the ICNP	correct name
    Enterobacter pulveris Stephan et al. 2008	validly published under the ICNP	synonym
    Enterobacter pyrinus Chung et al. 1993	validly published under the ICNP	synonym
    Enterobacter quasihormaechei Wang et al. 2020	validly published under the ICNP	correct name
    Enterobacter quasimori Wu et al. 2021	validly published under the ICNP	correct name
    Enterobacter quasiroggenkampii Wu et al. 2020	validly published under the ICNP	correct name
    Enterobacter radicincitans Kämpfer et al. 2005	validly published under the ICNP	synonym
    Enterobacter roggenkampii Sutton et al. 2018	validly published under the ICNP	correct name
    Enterobacter rongchengensis He et al. 2025	validly published under the ICNP	correct name
    Enterobacter sacchari Zhu et al. 2013	validly published under the ICNP	synonym
    Enterobacter sakazakii Farmer et al. 1980	validly published under the ICNP	synonym
    Enterobacter siamensis Khunthongpan et al. 2014	validly published under the ICNP	correct name
    Enterobacter sichuanensis Wu et al. 2018	validly published under the ICNP	correct name
    Enterobacter soli Manter et al. 2011	validly published under the ICNP	correct name
    Enterobacter tabaci Duan et al. 2016	validly published under the ICNP	synonym
    Enterobacter taylorae Farmer et al. 1985	validly published under the ICNP	synonym
    "Enterobacter timonensis" Tidjani-Alou et al. 2017	not validly published	synonym (and no standing)
    "Enterobacter timonensis" Takakura et al. 2019	not validly published	preferred name (not correct name)
    Enterobacter turicensis Stephan et al. 2007	validly published under the ICNP	synonym
    Enterobacter vonholyi Cho et al. 2021	validly published under the ICNP	correct name
    Enterobacter wuhouensis Wang et al. 2020	validly published under the ICNP	correct name
    Enterobacter xiangfangensis Gu et al. 2014	validly published under the ICNP	synonym

Parent taxon: Enterobacteriaceae Rahn 1937 (Approved Lists 1980)

Assigned by: Adeolu M, Alnajar S, Naushad S, S Gupta R. Genome-based phylogeny and taxonomy of the 'Enterobacteriales': proposal for Enterobacterales ord. nov. divided into the families Enterobacteriaceae, Erwiniaceae fam. nov., Pectobacteriaceae fam. nov., Yersiniaceae fam. nov., Hafniaceae fam. nov., Morganellaceae fam. nov., and Budviciaceae fam. nov. Int J Syst Evol Microbiol 2016; 66:5575-5599.

Linking: To permanently link to this page, use https://lpsn.dsmz.de/genus/enterobacterCopy to clipboardLink copied to clipboard

Record number: 515587