title: Procaryote phylogeny IV: concerning the phylogenetic status of a photosynthetic bacterium.
abstract: The 16S ribosomal RNA (30S subunit) of Rhodopseudomonas spheroides has been characterized in terms of T1 ribonuclease digestion products. This "fingerprint" ultimately permits the placement of R. spheroides into a detailed procaryotic phylogenetic tree. Given the number of major procaryotic lines that have been characterized in these terms to date, one can tentatively place the Athiorhodaceae closer to the Vibrio-Enteric group than to the Bacillaceae or Cyanophyta.
mesh_terms: D001483:Base Sequence; D005075:Biological Evolution; D009841:Oligonucleotides / Q000032:analysis; D010802:Phylogeny; D012335:RNA, Ribosomal; D012242:Rhodobacter sphaeroides; D006163:Ribonuclease T1 / Q000378:metabolism
chemical_list: D009841:Oligonucleotides; D012335:RNA, Ribosomal; D006163:Ribonuclease T1