Name: Rhizobiaceae Conn 1938 (Approved Lists 1980)

Category: Family

Proposed as: fam. nov.

Etymology: N.L. neut. n. Rhizobium, type genus of the family; L. fem. pl. n. suff. -aceae, ending to denote a family; N.L. fem. pl. n. Rhizobiaceae, the Rhizobium family

Gender: feminine

Type genus: Rhizobium Frank 1889 (Approved Lists 1980)

Effective publication: Conn HJ. Agricultural and industrial bacteriology. Journal of Bacteriology 1938; 36:320-321.

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

Taxonomic status: correct name

• Emendations:
  • Hördt et al. 2020 Hordt A, Lopez MG, Meier-Kolthoff JP, Schleuning M, Weinhold LM, Tindall BJ, Gronow S, Kyrpides NC, Woyke T, Goker M. Analysis of 1,000+ Type-Strain Genomes Substantially Improves Taxonomic Classification of Alphaproteobacteria. Front Microbiol 2020; 11:468. Oren A, Garrity GM. List of changes in taxonomic opinion no. 32. Notification of changes in taxonomic opinion previously published outside the IJSEM. Int J Syst Evol Microbiol 2020; 70:4061-4090.
    Notes:
    • Emendation accompanied by the inclusion of 5 genera in the family. — Emendation accompanied by the removal of 3 genera from the family.

• Notes:
  • Breed et al. (1948) assigned this family to the suborder Eubacteriineae Breed et al. 1944 (Approved Lists 1980). Publication: Burkholder WH. Genus I. Pseudomonas Migula. Bacterial plant pathogens. In: Breed RS, Murray EGD, Hitchens AP (eds), Bergey's Manual of Determinative Bacteriology, 6th ed., The Williams & Wilkins Co, Baltimore, 1948, p. 82-150.
  • Breed et al. (1957) assigned this family to the order Eubacteriales Buchanan 1917 (Approved Lists 1980). Publication: Parker CD. Genus V. Thiobacillus Beijerinck 1904. In: Breed RS, Murray EGD, Smith NR (eds), Bergey's Manual of Determinative Bacteriology, 7th edition, The Williams & Wilkins Co, Baltimore, 1957, p. 83-88.
  • Brenner et al. (2005) assigned this family to the order Rhizobiales Kuykendall 2006. Publication: Kuykendall LD. Order VI. Rhizobiales ord. nov. In: Brenner DJ, Krieg NR, Staley JT, Garrity GM (eds), Bergey's Manual of Systematic Bacteriology, 2nd edn, vol. 2 (The Proteobacteria), part C (The Alpha-, Beta-, Delta-, and Epsilonproteobacteria), Springer, New York, 2005, p. 324.
  • Boone et al. (2001) assigned the genus Chelatobacter Auling et al. 1993 to this family. Publication: 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.
  • Breed et al. (1957) assigned the genus Chromobacterium Bergonzini 1880 (Approved Lists 1980) to this family. Publication: Parker CD. Genus V. Thiobacillus Beijerinck 1904. In: Breed RS, Murray EGD, Smith NR (eds), Bergey's Manual of Determinative Bacteriology, 7th edition, The Williams & Wilkins Co, Baltimore, 1957, p. 83-88.
  • Brenner et al. (2005) assigned the genus Carbophilus Meyer et al. 1994 to this family. Publication: Garrity GM, Bell JA, Lilburn T. Class I. Alphaproteobacteria class. nov. In: Brenner DJ, Krieg NR, Staley JT, Garrity GM (eds), Bergey's Manual of Systematic Bacteriology, 2nd edn, vol. 2 (The Proteobacteria), part C (The Alpha-, Beta-, Delta-, and Epsilonproteobacteria), Springer, New York, 2005, p. 1.
  • Lee and Jeon (2018) assigned the genus Kaistia Im et al. 2005 to this family. Publication: Lee Y, Jeon CO. Kaistia algarum sp. nov., isolated from a freshwater green alga Paulinella chromatophora. Int J Syst Evol Microbiol 2018; 68:3028-3033.
  • This taxon name is occasionally misprinted in some sources as: "Rhilobiaceae"; "Rhizobfaceae"; "Rhizohiaceae"; "Rhizoiaceae"; "Rliizobiaceae".
  • This taxon was discussed in a meeting of a Taxonomic Subcommittee of the ICSP. Publication: de Lajudie PM, Young JPW. International Committee on Systematics of Prokaryotes Subcommittee on the taxonomy of rhizobia and agrobacteria Minutes of the closed meeting, Granada, 4 September 2017. Int J Syst Evol Microbiol 2018; 68:3363-3368.
  • This taxon was discussed in a meeting of a Taxonomic Subcommittee of the ICSP. Publication: de Lajudie P, Young JPW. International Committee on Systematics of Prokaryotes Subcommittee on the Taxonomy of Rhizobia and Agrobacteria Minutes of the meeting by video conference, 11 July 2018. Int J Syst Evol Microbiol 2019; 69:1835-1840.
  • This taxon was discussed in a meeting of a Taxonomic Subcommittee of the ICSP. Publication: de Lajudie PM, Young JPW. International Committee on Systematics of Prokaryotes Subcommittee for the Taxonomy of Rhizobium and Agrobacterium Minutes of the meeting, Budapest, 25 August 2016. Int J Syst Evol Microbiol 2017; 67:2485-2494.
  • This taxon was discussed in a meeting of a Taxonomic Subcommittee of the ICSP. Publication: Lindstrom K, Young JPW. International Committee on Systematics of Prokaryotes Subcommittee on the taxonomy of Agrobacterium and Rhizobium: minutes of the meeting, 7 September 2010, Geneva, Switzerland. Int J Syst Evol Microbiol 2011; 61:3089-3093.
  • This taxon was discussed in a meeting of a Taxonomic Subcommittee of the ICSP. Publication: Mousavi SA, Young JPW. International Committee on Systematics of Prokaryotes Subcommittee on the Taxonomy of Rhizobia and Agrobacteria. Minutes of the closed annual meeting: videoconference on 11 October 2022 followed by online discussion until 31 December 2022. Int J Syst Evol Microbiol 2023; 73:5856.
  • This taxon was discussed in a meeting of a Taxonomic Subcommittee of the ICSP. Publication: Mousavi SA, Young JPW. International Committee on Systematics of Prokaryotes, Subcommittee on the taxonomy of Rhizobia and Agrobacteria, minutes of the annual meeting by videoconference, 5 July 2021, followed by online discussion until 31 December 2021. Int J Syst Evol Microbiol 2022; 72:5453.
  • The BRCs most frequently used for deposits in this group are: LMG: 183; DSM: 169; ATCC: 88; NBRC: 84; JCM: 82; KCTC: 59; CIP: 51; IFO: 32; ICMP: 29; CECT: 28.

Subdivision:

Number of child taxa with a validly published and correct name: 19
Number of child taxa with a validly published name, including synonyms: 23
Total number of child taxa: 29

• Child taxa:

  • Name	Nomenclatural status	Taxonomic status
    Agrobacterium Conn 1942 (Approved Lists 1980)	validly published under the ICNP, conserved name	correct name
    Allorhizobium de Lajudie et al. 1998	validly published under the ICNP	correct name
    Ciceribacter Kathiravan et al. 2013	validly published under the ICNP	correct name
    Crabtreella Xie and Yokota 2006	validly published under the ICNP, illegitimate name	synonym
    Endobacterium Menéndez et al. 2021	validly published under the ICNP	correct name
    Ensifer Casida 1982	validly published under the ICNP	correct name
    Ferranicluibacter Roca-Couso et al. 2023	validly published under the ICNP	correct name
    Gellertiella Tóth et al. 2017	validly published under the ICNP	correct name
    Georhizobium Cao et al. 2020	validly published under the ICNP	correct name
    Hoeflea Peix et al. 2005	validly published under the ICNP	correct name
    Lentilitoribacter Park et al. 2013	validly published under the ICNP	correct name
    Liberibacter Fagen et al. 2014	validly published under the ICNP	correct name
    "Candidatus Liberobacter" Jagoueix et al. 1994	inaccurate spelling	misspelling (and no standing)
    Martelella Rivas et al. 2005	validly published under the ICNP	correct name
    Mycoplana Gray and Thornton 1928 (Approved Lists 1980)	validly published under the ICNP	correct name
    "Neopararhizobium" Hoerdt et al. 2020	not validly published	synonym (and no standing)
    Neorhizobium Mousavi et al. 2015	validly published under the ICNP	correct name
    Onobrychidicola Ashrafi et al. 2023	validly published under the ICNP	correct name
    Pararhizobium Mousavi et al. 2016	validly published under the ICNP	correct name
    Peteryoungia Rahi et al. 2021	validly published under the ICNP	synonym
    [Phytomyxa]	preliminary entry that lacks crucial information
    "Candidatus Porivivens" Taylor et al. 2022	not validly published	preferred name (not correct name)
    Pseudorhizobium Kimes et al. 2017	validly published under the ICNP	correct name
    "Reichenowia" Siddall et al. 2004	not validly published	preferred name (not correct name)
    Rhizobium Frank 1889 (Approved Lists 1980)	validly published under the ICNP, conserved name	correct name
    [Schinzia]	preliminary entry that lacks crucial information
    Shinella An et al. 2006	validly published under the ICNP	correct name
    Sinorhizobium Chen et al. 1988	validly published under the ICNP	synonym
    Xaviernesmea Kuzmanović et al. 2022	validly published under the ICNP	synonym

Parent taxon: Hyphomicrobiales Douglas 1957 (Approved Lists 1980)

Assigned by: Hordt A, Lopez MG, Meier-Kolthoff JP, Schleuning M, Weinhold LM, Tindall BJ, Gronow S, Kyrpides NC, Woyke T, Goker M. Analysis of 1,000+ Type-Strain Genomes Substantially Improves Taxonomic Classification of Alphaproteobacteria. Front Microbiol 2020; 11:468.

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Record number: 1170