Description of Komagataeibacter gen. nov., with proposals of new combinations (Acetobacteraceae).

The genus Gluconacetobacter Yamada et al. 1998 (Gluconoacetobacter [sic]) was introduced as the type species of Gluconacetobacter liquefaciens (Asai 1935) Yamada et al. 1998 by the elevation of the subgenus Gluconacetobacter (ex Asai 1935) Yamada and Kondo 1985 (Yamada et al., 1997, 1998). To date, 17 species have been accommodated to the genus (Yamada et al., 2012). Franke et al. (1999) found a phylogenetic duality in the new genus Gluconacetobacter. Yamada et al. (2000) divided the genus Gluconacetobacter into two subclusters, i.e., Subclusters 1 and 2. Subsequently, Dellaglio et al. (2005) and Lisdiyanti et al. (2006) recognized respectively two groups and two subclusters as well. Yamada and Yukphan (2008) suggested that the Gluconacetobacter liquefaciens group and the Gluconacetobacter xylinus group in the genus Gluconacetobacter can be phylogenetically, phenotypically and ecologically distinguished from each other at the generic level. Yamada et al. (2012) proposed the new genus Komagataeibacter (Komagatabacter [sic]) with 12 new combinations on the basis of these taxonomic characteristics. However, the new name of the genus and the new combinations were not recognized in their validations, since the proposals that were done without any indications of the deposits in the type strains in at least two different collections in two different countries were not in accordance with Rule 27 of the Bacteriological J. Gen. Appl. Microbiol., 58, 397‒404 (2012)