title: Phylogenetic position of the menaquinone-containing acidophilic chemo-organotroph Acidobacterium capsulatum.
abstract: The phylogenetic position of an acidophilic chemo-organotrophic menaquinone-containing bacterium, Acidobacterium capsulatum, was studied on the basis of 16S rRNA gene sequence information. A. capsulatum showed the highest level of sequence similarity to Heliobacterium chlorum, a member of the Gram-positive group, yet this level was only 81%. Distance matrix tree analysis suggested that A. capsulatum belongs to a unique lineage deeply branching from the Chlamydia-Planctomyces group or from the Gram-positive line.
authors.affiliation: Laboratory of Environmental Biotechnology, Konishi Co., Tokyo, Japan.
authors.forename: A
authors.initials: A
authors.lastname: Hiraishi
authors.forename: N
authors.initials: N
authors.lastname: Kishimoto
authors.forename: Y
authors.initials: Y
authors.lastname: Kosako
authors.forename: N
authors.initials: N
authors.lastname: Wakao
authors.forename: T
authors.initials: T
authors.lastname: Tano
mesh_terms: D001483:Base Sequence; D019143:Evolution, Molecular; D006091:Gram-Negative Chemolithotrophic Bacteria / Q000235:genetics* / Q000378:metabolism; D008969:Molecular Sequence Data; D010802:Phylogeny; D012329:RNA, Bacterial / Q000737:chemistry; D012336:RNA, Ribosomal, 16S / Q000737:chemistry; D017423:Sequence Analysis, RNA; D014812:Vitamin K / Q000096:biosynthesis
chemical_list: D012329:RNA, Bacterial; D012336:RNA, Ribosomal, 16S; D014812:Vitamin K