Name: Photobacteria Gibbons and Murray 1978 (Approved Lists 1980)

Category: Class

Proposed as: class. nov.

Etymology: Gr. masc. n. phôs (gen. phôtos), light; Gr. neut. n. baktêria, staff, cane; N.L. neut. n. suff. -ia, ending to denote a class; N.L. neut. pl. n. Photobacteria, light-requiring bacteria

Gender: neuter

Type order: Rhodospirillales Pfennig and Trüper 1971 (Approved Lists 1980)

Effective publication: Gibbons NE, Murray RGE. Proposals Concerning the Higher Taxa of Bacteria. International Journal of Systematic Bacteriology 1978; 28:1-6.

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, illegitimate name

Taxonomic status: synonym

Correct name: Alphaproteobacteria Garrity et al. 2006

• Synonyms:

  • Name	Kind
    Alphaproteobacteria Garrity et al. 2006	heterotypic synonym, validly published under the ICNP
    "Caulobacteria" Cavalier-Smith 2020	heterotypic synonym, not validly published
    Anoxyphotobacteria (Gibbons and Murray 1978) Murray 1988	homotypic synonym, validly published under the ICNP
    Alphabacteria Cavalier-Smith 2002	heterotypic synonym, validly published under the ICNP, rejected name

• Notes:
  • Gibbons and Murray (1978) assigned this class to the phylum "Gracilicutes" Gibbons and Murray 1978 (Approved Lists 1980). Publication: Gibbons NE, Murray RGE. Proposals Concerning the Higher Taxa of Bacteria. International Journal of Systematic Bacteriology 1978; 28:1-6.
  • Gibbons and Murray (1978) assigned the subclass Anoxyphotobacteriae Gibbons and Murray 1978 (Approved Lists 1980) to this class. Publication: Gibbons NE, Murray RGE. Proposals Concerning the Higher Taxa of Bacteria. International Journal of Systematic Bacteriology 1978; 28:1-6.
  • Gibbons and Murray (1978) assigned the subclass "Oxyphotobacteriae" to this class. Publication: Gibbons NE, Murray RGE. Proposals Concerning the Higher Taxa of Bacteria. International Journal of Systematic Bacteriology 1978; 28:1-6.
  • The type order of this class has been placed in the class Alphaproteobacteria Garrity et al. 2006. 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.
  • This taxon name is occasionally misprinted in some sources as: "Pholobacteria".
  • Irregularly formed name. Tindall (2014): "Not currently used as a class name; as applied by Gibbons and Murray (1978) the name encompasses those Gram-negative (i.e. Gram-stain-negative) prokaryotes that are capable of growing by oxygenic or anoxygenic photosynthesis.". Publication: Tindall BJ. Names at the rank of class, subclass and order, their typification and current status: Supplementary information to Opinion 79. Judicial Commission of the International Committee on Systematics of Prokaryotes. Int J Syst Evol Microbiol 2014; 64:3599-3602.
  • Illegitimate according to Tindall (2014). Tindall (2014) notes that the type order Rhodospirillales Pfennig and Trüper 1971 was provided in Gibbons and Murray (1978) but that this order was not included in the Approved Lists. Gibbons and Murray (1978) actually indicated Oxyphotobacteriae as type subclass of Photobacteria and Rhodospirillales as type order of Oxyphotobacteriae. But in contrast to Anoxyphotobacteriae Gibbons and Murray 1978, Oxyphotobacteriae was not included in the Approved Lists. Publication: Euzeby JP, Tindall BJ. Nomenclatural type of orders: corrections necessary according to Rules 15 and 21a of the Bacteriological Code (1990 Revision), and designation of appropriate nomenclatural types of classes and subclasses. Request for an opinion. Int J Syst Evol Microbiol 2001; 51:725-727.

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Record number: 59