Abstract
On the basis of the ubiquinone system comprised of Q-10[Q-9], the DNA-DNA hybridization and the electrophoretic patterns of enzymes, we propose to substitute Acetobacter liquefaciens (Asai 1935) Yamada and Tahara sp. nov. for Acetobacter aceti subsp. liquefaciens (Asai 1935) De Ley and Frateur 1974. A description and a comparison of this species with other species in the genus Acetobacter Beijerinck 1898 are presented. The type strain is IFO 12388 (=IAM 1834).