Genus Exiguobacterium

Classification:

Bacteria Bacillati Bacillota Bacilli Caryophanales Bacillaceae Exiguobacterium

Name: Exiguobacterium Collins et al. 1984

Category, proposed as: genus, gen. nov.

Etymology: E.xi.gu.o.bac.te’ri.um. L. masc. adj. exiguus, short, small; N.L. neut. n. bacterium, a small rod; N.L. neut. n. Exiguobacterium, small rod

Gender, pronunciation (Latin): neuter (stem: Exiguobacteri-), e-xi-gu-o-bak-TE-ri-um

Type species: Exiguobacterium aurantiacum Collins et al. 1984

Conduct genome-based taxonomy of genus at TYGS

16S rRNA gene: Analyse FASTA

Effective publication: Collins MD, Lund BM, Farrow JAE, Schleifer KH. Chemotaxonomic study of an alkalophilic bacterium, Exiguobacterium aurantiacum gen. nov., sp. nov. J. Gen. Microbiol. 1983; 129:2037-2042. 🇬🇧

IJSEM list: Anonymous. Validation list no. 13. Validation of publication of new names and new combinations previously effectively published outside the IJSB. Int J Syst Bacteriol 1984; 34:91-92.

Nomenclatural status: validly published under the ICNP

Taxonomic status: correct name

Risk group: 2

Notes:
- 🥇 Nomenclatural type of the family Exiguobacteriaceae Chuvochina et al. 2024. Publication: Chuvochina M, Mussig AJ, Chaumeil PA, Skarshewski A, Rinke C, Parks DH, Hugenholtz P. Proposal of names for 329 higher rank taxa defined in the Genome Taxonomy Database under two prokaryotic codes. FEMS Microbiol Lett 2023; 0:0. 🇦🇺
- 🥇 Nomenclatural type of the order "Exiguobacterales" Glendinning et al. 2020. Publication: Glendinning L, Stewart RD, Pallen MJ, Watson KA, Watson M. Assembly of hundreds of novel bacterial genomes from the chicken caecum. Genome Biol 2020; 21:34. 🇬🇧
- 🥇 Nomenclatural type of the order "Exiguobacteriales" corrig. Glendinning et al. 2020. Publication: Glendinning L, Stewart RD, Pallen MJ, Watson KA, Watson M. Assembly of hundreds of novel bacterial genomes from the chicken caecum. Genome Biol 2020; 21:34. 🇬🇧
- 🥇 Nomenclatural type of the order Exiguobacteriales Chuvochina et al. 2024. Publication: Chuvochina M, Mussig AJ, Chaumeil PA, Skarshewski A, Rinke C, Parks DH, Hugenholtz P. Proposal of names for 329 higher rank taxa defined in the Genome Taxonomy Database under two prokaryotic codes. FEMS Microbiol Lett 2023; 0:0. 🇦🇺
- 🧕 Chuvochina et al. (2023) assigned this genus to the family Exiguobacteriaceae Chuvochina et al. 2024. Publication: Chuvochina M, Mussig AJ, Chaumeil PA, Skarshewski A, Rinke C, Parks DH, Hugenholtz P. Proposal of names for 329 higher rank taxa defined in the Genome Taxonomy Database under two prokaryotic codes. FEMS Microbiol Lett 2023; 0:0. 🇦🇺
- 🧕 Chuvochina et al. (2023) assigned this genus to the order Exiguobacteriales Chuvochina et al. 2024. Publication: Chuvochina M, Mussig AJ, Chaumeil PA, Skarshewski A, Rinke C, Parks DH, Hugenholtz P. Proposal of names for 329 higher rank taxa defined in the Genome Taxonomy Database under two prokaryotic codes. FEMS Microbiol Lett 2023; 0:0. 🇦🇺
- 🧕 De Vos et al. (2009) assigned this genus to the order Bacillales Prévot 1953 (Approved Lists 1980). Publication: Ludwig W, Schleifer K-H, Whitman WB. Class I. Bacilli class nov. In: De Vos P, Garrity GM, Jones D, Krieg NR, Ludwig W, Rainey FA, K.-H. S, Whitman WB (eds), Bergey's Manual of Systematic Bacteriology, 2nd edn, vol. 3 (The Firmicutes), Springer, New York, 2009, p. 19-20. 🇧🇪
- 🧕 Li et al. (2024) assigned this genus to the family Exiguobacteriaceae Chuvochina et al. 2024. Publication: Li Y, Zhang D, Bo D, Peng D, Sun M, Zheng J. A taxonomic note on the order Caryophanales: description of 12 novel families and emended description of 21 families. Int J Syst Evol Microbiol 2024; 74:6539. 🇨🇳
- 🧕 Tindall (2019) assigned this genus to the order Caryophanales Peshkoff 1939 (Approved Lists 1980). Publication: Tindall BJ. When treated as heterotypic synonyms the names Caryophanaceae Peshkoff 1939 (Approved Lists 1980) and Caryophanales Peshkoff 1939 (Approved Lists 1980) have priority over the names Planococcaceae Krasil'nikov 1949 (Approved Lists 1980) and Bacillales Prevot 1953 (Approved Lists 1980) and Bacillales Prevot 1953 (Approved Lists 1980), respectively. Int J Syst Evol Microbiol 2019; 69:2187-2195. 🇩🇪
- 🙄 This taxon name is occasionally misprinted (or affected by an OCR error) in some sources as: "Ekiguobacterium"; "Exieobacterium"; "Exigobacterium"; "Exiguobacteriurn"; "Exiguobaeterium"; "Exiguohacterium"; "Exigusbacterium"; "Exiquobacterium". — 🤨 This taxon name is occasionally used in plural form as: "Exiguobacteria".
- 💁 Taxonomists who have recently focused on this group are the corresponding authors of Chaturvedi et al. (2008), Farrow et al. (1994). 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 -0.01043 (N = 5).
- 🎰 The BRCs most frequently used for deposits in this group are: DSM: 15; CIP: 6; CCUG: 6; JCM: 6; KCTC: 5; MTCC: 4; CGMCC: 2; IFO: 2; NCIMB: 2; ATCC: 2.
- 😷 The risk group for Canada has been imported on 2024-02-27. The full classification is: risk group = 2, note = "Animal classification RG: 1 - Security sensitive biological agent: No - Terrestrial animal pathogen under Canadian Food Inspection Agency authority: No - Containment level: Containment Level 2". — The risk group for Taiwan has been imported on 2024-11-03. The full classification is: risk group = 1, note = "P650 = v". — 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 "EXBT" 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.

Subdivision:

Number of child taxa with a validly published and correct name: 15
Number of child taxa with a validly published name, including synonyms: 19
Total number of child taxa: 25

Child taxa:

Name	Nomenclatural status	Taxonomic status
"Exiguobacterium abrahamii" Salim and Sugathan 2025	not validly published	preferred name
Exiguobacterium acetylicum (Levine and Soppeland 1926) Farrow et al. 1994	validly published under the ICNP	correct name
Exiguobacterium aestuarii Kim et al. 2005	validly published under the ICNP	correct name
Exiguobacterium algae Liu et al. 2022	validly published under the ICNP	correct name
Exiguobacterium alkaliphilum Kulshreshtha et al. 2013	validly published under the ICNP	correct name
Exiguobacterium antarcticum Frühling et al. 2002	validly published under the ICNP	correct name
Exiguobacterium aquaticum Raichand et al. 2012	validly published under the ICNP	synonym
"Exiguobacterium arabatum" Jakubauskas et al. 2009	not validly published	preferred name
Exiguobacterium artemiae López-Cortés et al. 2006	validly published under the ICNP	correct name
Exiguobacterium aurantiacum Collins et al. 1984	validly published under the ICNP	correct name
"Exiguobacterium chiriqhucha" Gutierrez-Preciado et al. 2017	not validly published	preferred name
Exiguobacterium enclense Dastager et al. 2015	validly published under the ICNP	synonym
Exiguobacterium flavidum Meng et al. 2020	validly published under the ICNP	correct name
"Exiguobacterium himgiriensis" Singh et al. 2013	not validly published	preferred name
"Exiguobacterium homiense" Sivaprakasam et al. 2008	not validly published	preferred name
Exiguobacterium indicum Chaturvedi and Shivaji 2006	validly published under the ICNP	correct name
Exiguobacterium marinum Kim et al. 2005	validly published under the ICNP	correct name
Exiguobacterium mexicanum López-Cortés et al. 2006	validly published under the ICNP	correct name
Exiguobacterium oxidotolerans Yumoto et al. 2004	validly published under the ICNP	correct name
"Exiguobacterium pavilionensis" White et al. 2013	not validly published	preferred name
Exiguobacterium profundum Crapart et al. 2007	validly published under the ICNP	correct name
Exiguobacterium qingdaonense Liu et al. 2022	validly published under the ICNP	correct name
Exiguobacterium sibiricum Rodrigues et al. 2006	validly published under the ICNP	synonym
Exiguobacterium soli Chaturvedi et al. 2008	validly published under the ICNP	synonym
Exiguobacterium undae Frühling et al. 2002	validly published under the ICNP	correct name

Parent taxon: Bacillaceae Fischer 1895 (Approved Lists 1980)

Assigned by: Garrity GM, Holt JG. The Road Map to the Manual. In: Boone DR, Castenholz RW, Garrity GM (eds), Bergey's Manual of Systematic Bacteriology, second edition, vol. 1 (The Archaea and the deeply branching and phototrophic Bacteria), Springer-Verlag, New York, 2001, p. 119-166. 🇺🇸

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Record number: 515610

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