Name: Rhodocyclus Pfennig 1978 (Approved Lists 1980)

Category: Genus

Proposed as: gen. nov.

Etymology: Rho.do.cy.clus. Gr. neut. n. rhodon, the rose; L. masc. n. cyclus, a circle; N.L. masc. n. Rhodocyclus, red circle

Gender: masculine (stem: Rhodocycl-)

Type species: Rhodocyclus purpureus Pfennig 1978 (Approved Lists 1980)

Conduct genome-based taxonomy of genus at TYGS

16S rRNA gene: Analyse FASTA

Effective publication: Pfennig N. Rhodocyclus purpureus gen. nov. and sp. nov., a ring-shaped, vitamin B12-requiring member of the family Rhodospirillaceae. International Journal of Systematic Bacteriology 1978; 28:283-288.

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:
  • Imhoff et al. 1984 Imhoff JF, Trüper HG, Pfennig N. Rearrangement of the species and genera of the phototrophic "purple nonsulfur bacteria". Int. J. Syst. Bacteriol. 1984; 34:340-343.
    Notes:
    • Emendation accompanied by the proposal of 2 new species in the genus.

• Notes:
  • Nomenclatural type of the family Rhodocyclaceae Garrity et al. 2006. 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.
  • Nomenclatural type of the order Rhodocyclales Garrity et al. 2006. Publication: 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.
  • This taxon name is occasionally misprinted in some sources as: "Rhodociyclus"; "Rhodocycius"; "Rhodocycliis"; "Rhodocyctlus"; "Rhodocydus"; "Rhodocylcus"; "Rhodocylus"; "Rhodoqclus"; "Rlwdocyclus".
  • The BRCs most frequently used for deposits in this group are: DSM: 4; CCUG: 3; LMG: 3; ATCC: 3; NBRC: 2; JCM: 2; CIP: 1; NCIMB: 1; IFO: 1.
  • Pittman et al. (1991) suggested the abbreviation "ROCY" 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: 3
Number of child taxa with a validly published name, including synonyms: 4
Total number of child taxa: 4

• Child taxa:

  • Name	Nomenclatural status	Taxonomic status
    Rhodocyclus gelatinosus (Molisch 1907) Imhoff et al. 1984	validly published under the ICNP	synonym
    Rhodocyclus gracilis Kyndt et al. 2022	validly published under the ICNP	correct name
    Rhodocyclus purpureus Pfennig 1978 (Approved Lists 1980)	validly published under the ICNP	correct name
    Rhodocyclus tenuis (Pfennig 1969) Imhoff et al. 1984	validly published under the ICNP	correct name

Parent taxon: Rhodocyclaceae Garrity et al. 2006

Assigned by: 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.

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Record number: 517109