Name: Rhodocyclaceae Garrity et al. 2006

Category: Family

Proposed as: fam. nov.

Etymology: Rho.do.cy.cla’ce.ae. N.L. masc. n. Rhodocyclus, type genus of the family; L. fem. pl. n. suff. -aceae, ending to denote a family; N.L. fem. pl. n. Rhodocyclaceae, the Rhodocyclus family

Gender: feminine

Type genus: Rhodocyclus Pfennig 1978 (Approved Lists 1980)

Effective publication: Garrity GM, Bell JA, Lilburn T. Family I. Rhodocyclaceae fam. 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. 887.

IJSEM list: Euzeby JP. Validation list no. 107. List of new names and new combinations previously effectively, but not validly, published. Int J Syst Evol Microbiol 2006; 56:1-6.

Nomenclatural status: validly published under the ICNP

Taxonomic status: correct name

• Emendations:
  • Boden et al. 2017 Boden R, Hutt LP, Rae AW. Reclassification of Thiobacillus aquaesulis (Wood & Kelly, 1995) as Annwoodia aquaesulis gen. nov., comb. nov., transfer of Thiobacillus (Beijerinck, 1904) from the Hydrogenophilales to the Nitrosomonadales, proposal of Hydrogenophilalia class. nov. within the 'Proteobacteria', and four new families within the orders Nitrosomonadales and Rhodocyclales. Int J Syst Evol Microbiol 2017; 67:1191-1205. Oren A, Garrity GM. Notification list. Notification that new names and new combinations have appeared in volume 67, part 5 of the IJSEM. Int J Syst Evol Microbiol 2017; 67:2495-2498.
    Notes:
    • ⊕ Emendation accompanied by the inclusion of 3 genera in the family.
    • ⊖ Emendation accompanied by the removal of 14 genera from the family.

• Notes:
  • 🧕 Reyes-Umana and Coates (2023) assigned this family to the order Burkholderiales Garrity et al. 2006. Publication: Reyes-Umana VM, Coates JD. A description of the genus Denitromonas nom. rev.: Denitromonas iodatirespirans sp. nov., a novel iodate-reducing bacterium, and two novel perchlorate-reducing bacteria, Denitromonas halophila and Denitromonas ohlonensis, isolated from San Francisco Bay intertidal mudflats. Microbiol Spectr 2023; 11:e0091523.
  • 🧒 Brenner et al. (2005) assigned the genus Azoarcus Reinhold-Hurek et al. 1993 to this family. Publication: Garrity GM, Bell JA, Lilburn T. Family I. Rhodocyclaceae fam. 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. 887.
  • 🧒 Brenner et al. (2005) assigned the genus Azonexus Reinhold-Hurek and Hurek 2000 to this family. Publication: Garrity GM, Bell JA, Lilburn T. Family I. Rhodocyclaceae fam. 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. 887.
  • 🧒 Brenner et al. (2005) assigned the genus Dechloromonas Achenbach et al. 2001 to this family. Publication: Garrity GM, Bell JA, Lilburn T. Family I. Rhodocyclaceae fam. 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. 887.
  • 🧒 Brenner et al. (2005) assigned the genus Ferribacterium Cummings et al. 2000 to this family. Publication: Garrity GM, Bell JA, Lilburn T. Family I. Rhodocyclaceae fam. 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. 887.
  • 🧒 Brenner et al. (2005) assigned the genus Sterolibacterium Tarlera and Denner 2003 to this family. Publication: Garrity GM, Bell JA, Lilburn T. Family I. Rhodocyclaceae fam. 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. 887.
  • 🧒 Brenner et al. (2005) assigned the genus Thauera Macy et al. 1993 to this family. Publication: Garrity GM, Bell JA, Lilburn T. Family I. Rhodocyclaceae fam. 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. 887.
  • 🧒 Brenner et al. (2005) assigned the genus Zoogloea Itzigsohn 1868 (Approved Lists 1980) to this family. Publication: Garrity GM, Bell JA, Lilburn T. Family I. Rhodocyclaceae fam. 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. 887.
  • 🧒 Brenner et al. (2005) assigned the genus Quadricoccus Maszenan et al. 2002 to this family. Publication: Garrity GM, Bell JA, Lilburn T. Family I. Rhodocyclaceae fam. 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. 887.
  • 🧒 Chun et al. (2016) assigned the genus Niveibacterium Chun et al. 2016 to this family. Publication: Chun J, Young Kang J, Cheol Jung Y, Yeop Jahng K. Niveibacterium umoris gen. nov., sp. nov., isolated from wetland freshwater. Int J Syst Evol Microbiol 2016; 66:997-1002.
  • 🧒 Lew et al. (2012) assigned the genus "Denitromonas" Orla-Jensen 1909 to this family. Publication: Lew B, Stief P, Beliavski M, Ashkenazi A, Svitlica O, Khan A, Tarre S, de Beer D, Green M. Characterization of denitrifying granular sludge with and without the addition of external carbon source. Bioresour Technol 2012; 124:413-420.
  • 🧒 Yilmaz et al. (2014) assigned the genus Denitratisoma Fahrbach et al. 2006 to this family. Publication: Yilmaz P, Parfrey LW, Yarza P, Gerken J, Pruesse E, Quast C, Schweer T, Peplies J, Ludwig W, Glöckner FO. The SILVA and “all-species living tree project (LTP)” taxonomic frameworks. Nucleic Acids Research 2014; 42(D1):D643-D648.
  • 🧒 Yilmaz et al. (2014) assigned the genus Georgfuchsia Weelink et al. 2011 to this family. Publication: Yilmaz P, Parfrey LW, Yarza P, Gerken J, Pruesse E, Quast C, Schweer T, Peplies J, Ludwig W, Glöckner FO. The SILVA and “all-species living tree project (LTP)” taxonomic frameworks. Nucleic Acids Research 2014; 42(D1):D643-D648.
  • 🧒 Yilmaz et al. (2014) assigned the genus Methyloversatilis Kalyuzhnaya et al. 2006 to this family. Publication: Yilmaz P, Parfrey LW, Yarza P, Gerken J, Pruesse E, Quast C, Schweer T, Peplies J, Ludwig W, Glöckner FO. The SILVA and “all-species living tree project (LTP)” taxonomic frameworks. Nucleic Acids Research 2014; 42(D1):D643-D648.
  • 🧒 Yilmaz et al. (2014) assigned the genus Quatrionicoccus Tindall and Euzéby 2006 to this family. Publication: Yilmaz P, Parfrey LW, Yarza P, Gerken J, Pruesse E, Quast C, Schweer T, Peplies J, Ludwig W, Glöckner FO. The SILVA and “all-species living tree project (LTP)” taxonomic frameworks. Nucleic Acids Research 2014; 42(D1):D643-D648.
  • 🧒 Yilmaz et al. (2014) assigned the genus Sulfuritalea Kojima and Fukui 2011 to this family. Publication: Yilmaz P, Parfrey LW, Yarza P, Gerken J, Pruesse E, Quast C, Schweer T, Peplies J, Ludwig W, Glöckner FO. The SILVA and “all-species living tree project (LTP)” taxonomic frameworks. Nucleic Acids Research 2014; 42(D1):D643-D648.
  • 🧒 Yilmaz et al. (2014) assigned the genus Uliginosibacterium Weon et al. 2008 to this family. Publication: Yilmaz P, Parfrey LW, Yarza P, Gerken J, Pruesse E, Quast C, Schweer T, Peplies J, Ludwig W, Glöckner FO. The SILVA and “all-species living tree project (LTP)” taxonomic frameworks. Nucleic Acids Research 2014; 42(D1):D643-D648.
  • 🙄 This taxon name is occasionally misprinted (or affected by an OCR error) in some sources as: "Rhodacyclaceae".
  • 🧔 This taxon was discussed in a meeting of a Taxonomic Subcommittee of the ICSP. Publication: Madigan MT, Imhoff JF. International Committee on Systematics of Prokaryotes; Subcommittee on the taxonomy of phototrophic bacteria. International Journal of Systematic and Evolutionary Microbiology 2007; 57:1169-1171.
  • 🧔 This taxon was discussed in a meeting of a Taxonomic Subcommittee of the ICSP. Publication: Madigan MT, Imhoff JF. International Committee on Systematics of Prokaryotes: Subcommittee on the taxonomy of phototrophic bacteria. International Journal of Systematic and Evolutionary Microbiology 2007; 57:1169-1171.
  • 🎰 The BRCs most frequently used for deposits in this group are: DSM: 15; ATCC: 8; JCM: 7; LMG: 6; CCUG: 3; CIP: 3; NBRC: 2; NRRL: 2; GDMCC: 1; KACC: 1.

Subdivision:

Number of child taxa with a validly published and correct name: 7
Number of child taxa with a validly published name, including synonyms: 9
Total number of child taxa: 12

• Child taxa:

  • Name	Nomenclatural status	Taxonomic status
    "Candidatus Accumulibacter" Hesselmann et al. 1999	not validly published	pro-correct name
    Azospira Reinhold-Hurek and Hurek 2000	validly published under the ICNP	correct name
    Azovibrio Reinhold-Hurek and Hurek 2000	validly published under the ICNP	correct name
    "Dechlorobacter" Thrash et al. 2010	not validly published	preferred name
    Dechlorosoma Achenbach et al. 2001	validly published under the ICNP	synonym
    Oryzomicrobium Liu et al. 2017	validly published under the ICNP	correct name
    Propionibacter Meijer et al. 1999	validly published under the ICNP	synonym
    Propionivibrio Tanaka et al. 1991	validly published under the ICNP	correct name
    "Candidatus Proximibacter" Petriglieri et al. 2022	not validly published	preferred name
    Rhodocyclus Pfennig 1978 (Approved Lists 1980)	validly published under the ICNP	correct name
    Rugosibacter Corteselli et al. 2017	validly published under the ICNP	correct name
    Viridibacterium Kang et al. 2025	validly published under the ICNP	correct name

Parent taxon: Rhodocyclales Garrity et al. 2006

Assigned by: Garrity GM, Bell JA, Lilburn T. Order VI. Rhodocyclales 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. 887.

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Record number: 1181