Warning: In the List of Prokaryotic names with Standing in Nomenclature, an arrow (→) only indicates the sequence of valid publication of names and does not mean that the last name in the sequence must be used (see: Introduction).
For a detailed description of this taxon see Bergey’s Manual of Systematics of Archaea and Bacteria (BMSAB).
Alphaproteobacteria Garrity et al. 2006, class. nov.
Type order: ¤ Caulobacterales Henrici and Johnson 1935 (Approved Lists 1980).
Etymology: Gr. n. alpha, name of the first letter of Greek alphabet; Gr. or L. n. Proteus, Greek god of the sea, capable of assuming many different shapes; N.L. n. bacter, a rod; suff. -ia, ending to denote a class; N.L. neut. pl. n. Alphaproteobacteria, a class of bacteria included in the phylum "Proteobacteria" and having 16S rRNA gene sequences related to those of the members of the order Caulobacterales.
Valid publication: Validation List no. 107. Int. J. Syst. Evol. Microbiol., 2006, 56, 1-6.
Effective publication: GARRITY (G.M.), BELL (J.A.) and LILBURN (T.): Class I. Alphaproteobacteria class. nov. In: D.J. BRENNER, N.R. KRIEG, J.T. STALEY and G. M. GARRITY (editors), Bergey's Manual of Systematic Bacteriology, second edition, vol. 2 (The Proteobacteria), part C (The Alpha-, Beta-, Delta-, and Epsilonproteobacteria), Springer, New York, 2005, p. 1.
Validation List no. 107 in IJSEM Online