Frateuria, a New Genus for "Acetobacter aurantius"

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Abstract
The properties and taxonomic positions of 11 strains previously identified as members of A. aurantium Kondo and Ameyama (this name is not on the Approved Lists) were reexamined. About 100 phenotypic features, the protein gel electropherograms and the parameters of DNA:[14C]rRNA hybrids were determined. The 11 strains fell into 3 taxonomically distinct groups. Strain IFO 3248 was the only one which belonged in Acetobacter. Strain IFO 3246 was an atypical Gluconobacter. The remaining 9 strains formed a tight cluster, with very similar phenotypic features and protein gel electropherograms. Taxonomically, this cluster is quite removed from Gluconobacter and Acetobacter and the properties of its DNA:rRNA hybrids suggest that it is closer to Pseudomonas Section I (Buchanan and Gibbons [ed.], Bergeys Manual of Determinative Bacteriology, 8th ed.) and Xanthomonas. The name FRATEURIA gen. nov. is proposed for this cluster, with F. aurantia sp. nov. as the type species and IFO 3245 as the type strain. An extensive phenotypic description and minimal standards of the new genus are given, as is the phenotypic differentiation from Gluconobacter and Acetobacter.

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