title: Complete genome sequence of the marine planctomycete Pirellula sp. strain 1.
abstract: Pirellula sp. strain 1 ("Rhodopirellula baltica") is a marine representative of the globally distributed and environmentally important bacterial order Planctomycetales. Here we report the complete genome sequence of a member of this independent phylum. With 7.145 megabases, Pirellula sp. strain 1 has the largest circular bacterial genome sequenced so far. The presence of all genes required for heterolactic acid fermentation, key genes for the interconversion of C1 compounds, and 110 sulfatases were unexpected for this aerobic heterotrophic isolate. Although Pirellula sp. strain 1 has a proteinaceous cell wall, remnants of genes for peptidoglycan synthesis were found. Genes for lipid A biosynthesis and homologues to the flagellar L- and P-ring protein indicate a former Gram-negative type of cell wall. Phylogenetic analysis of all relevant markers clearly affiliates the Planctomycetales to the domain Bacteria as a distinct phylum, but a deepest branching is not supported by our analyses.
authors.affiliation: Max Planck Institute for Marine Microbiology, Celsiusstrasse 1, D-28359 Bremen, Germany. fog@mpi-bremen.de
authors.forename: F O
authors.initials: FO
authors.lastname: Glöckner
authors.forename: M
authors.initials: M
authors.lastname: Kube
authors.forename: M
authors.initials: M
authors.lastname: Bauer
authors.forename: H
authors.initials: H
authors.lastname: Teeling
authors.forename: T
authors.initials: T
authors.lastname: Lombardot
authors.forename: W
authors.initials: W
authors.lastname: Ludwig
authors.forename: D
authors.initials: D
authors.lastname: Gade
authors.forename: A
authors.initials: A
authors.lastname: Beck
authors.forename: K
authors.initials: K
authors.lastname: Borzym
authors.forename: K
authors.initials: K
authors.lastname: Heitmann
authors.forename: R
authors.initials: R
authors.lastname: Rabus
authors.forename: H
authors.initials: H
authors.lastname: Schlesner
authors.forename: R
authors.initials: R
authors.lastname: Amann
authors.forename: R
authors.initials: R
authors.lastname: Reinhardt
mesh_terms: D000222:Adaptation, Physiological / Q000235:genetics; D000900:Anti-Bacterial Agents / Q000096:biosynthesis; D001419:Bacteria / Q000145:classification / Q000235:genetics*; D001426:Bacterial Proteins / Q000235:genetics; D002451:Cell Compartmentation; D002455:Cell Division / Q000235:genetics; D002473:Cell Wall / Q000737:chemistry; D002689:Chlamydia / Q000235:genetics; D004269:DNA, Bacterial / Q000235:genetics; D004270:DNA, Circular / Q000235:genetics; D004777:Environment; D019143:Evolution, Molecular; D005285:Fermentation / Q000235:genetics; D015723:Gene Library; D016680:Genome, Bacterial; D008050:Lipid A / Q000096:biosynthesis; D008969:Molecular Sequence Data; D010802:Phylogeny; D021521:Ribotyping; D017422:Sequence Analysis, DNA
chemical_list: D000900:Anti-Bacterial Agents; D001426:Bacterial Proteins; D004269:DNA, Bacterial; D004270:DNA, Circular; D008050:Lipid A