Abstract
Rhodospirillum rubrum (Esmarch 1887) Molisch 1907 is the type species of the genus Rhodospirillum, which is the type genus of the family Rhodospirillaceae in the class Alphaproteobacteria. The species is of special interest because it is an anoxygenic phototroph that produces extracellular elemental sulfur (instead of oxygen) while harvesting light. It contains one of the most simple photosynthetic systems currently known, lacking light harvesting complex 2. Strain S1T can grow on carbon monoxide as sole energy source. With currently over 1,750 PubMed entries, R. rubrum is one of the most intensively studied microbial species, in particular for physiological and genetic studies. Next to R. centenum strain SW, the genome sequence of strain S1T is only the second genome of a member of the genus Rhodospirillum to be published, but the first type strain genome from the genus. The 4,352,825 bp long chromosome and 53,732 bp plasmid with a total of 3,850 protein-coding and 83 RNA genes were sequenced as part of the DOE Joint Genome Institute Program DOEM 2002.
Highlights
Strain S1T (= American Type Culture Collection (ATCC) 11170 = DSM 467) is the neotype strain of the species Rhodospirillum rubrum, which is the type species of the genus Rhodospirillum
The one yielding the highest score was Rhodospirillum photometricum, which corresponded to an identity of 96.0% and an HSP coverage of 96.9%. (Note that the Greengenes database uses the INSDC (= EMBL/National Center for Biotechnology Information (NCBI)/DDBJ) annotation, which is not an authoritative source for nomenclature or classification)
Genome project history This organism was selected for sequencing on the basis of the DOE Joint Genome Institute Program DOEM 2002
Summary
Strain S1T (= ATCC 11170 = DSM 467) is the neotype strain of the species Rhodospirillum rubrum, which is the type species of the genus Rhodospirillum. R. rubrum is one out of only four species with a validly described name in this genus. Strain S1T (van Niel) was designated as the neotype strain for R. rubrum by Pfennig and Trüper in 1971 [1], with the description of the strain in complete agreement with the species description given by van Niel in 1944 [2] for the initial deposition at the American Type Culture Collection (ATCC). We present a summary classification and a set of features for R. rubrum S1T, together with the description of the complete genomic sequencing and annotation
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