title: Genome sequence of the thermophilic fresh-water bacterium Spirochaeta caldaria type strain (H1(T)), reclassification of Spirochaeta caldaria, Spirochaeta stenostrepta, and Spirochaeta zuelzerae in the genus Treponema as Treponema caldaria comb. nov., Treponema stenostrepta comb. nov., and Treponema zuelzerae comb. nov., and emendation of the genus Treponema.
abstract: Spirochaeta caldaria Pohlschroeder et al. 1995 is an obligately anaerobic, spiral-shaped bacterium that is motile via periplasmic flagella. The type strain, H1(T), was isolated in 1990 from cyanobacterial mat samples collected at a freshwater hot spring in Oregon, USA, and is of interest because it enhances the degradation of cellulose when grown in co-culture with Clostridium thermocellum. Here we provide a taxonomic re-evaluation for S. caldaria based on phylogenetic analyses of 16S rRNA sequences and whole genomes, and propose the reclassification of S. caldaria and two other Spirochaeta species as members of the emended genus Treponema. Whereas genera such as Borrelia and Sphaerochaeta possess well-distinguished genomic features related to their divergent lifestyles, the physiological and functional genomic characteristics of Spirochaeta and Treponema appear to be intermixed and are of little taxonomic value. The 3,239,340 bp long genome of strain H1(T) with its 2,869 protein-coding and 59 RNA genes is a part of the G enomic E ncyclopedia of Bacteria and Archaea project.
authors: Leibniz Institute DSMZ - German Collection of Microorganisms and Cell Cultures, Braunschweig, Germany.
authors: Birte
authors: B
authors: Abt
authors: Markus
authors: M
authors: Göker
authors: Carmen
authors: C
authors: Scheuner
authors: Cliff
authors: C
authors: Han
authors: Megan
authors: M
authors: Lu
authors: Monica
authors: M
authors: Misra
authors: Alla
authors: A
authors: Lapidus
authors: Matt
authors: M
authors: Nolan
authors: Susan
authors: S
authors: Lucas
authors: Nancy
authors: N
authors: Hammon
authors: Shweta
authors: S
authors: Deshpande
authors: Jan-Fang
authors: JF
authors: Cheng
authors: Roxanne
authors: R
authors: Tapia
authors: Lynne A
authors: LA
authors: Goodwin
authors: Sam
authors: S
authors: Pitluck
authors: Konstantinos
authors: K
authors: Liolios
authors: Ioanna
authors: I
authors: Pagani
authors: Natalia
authors: N
authors: Ivanova
authors: Konstantinos
authors: K
authors: Mavromatis
authors: Natalia
authors: N
authors: Mikhailova
authors: Marcel
authors: M
authors: Huntemann
authors: Amrita
authors: A
authors: Pati
authors: Amy
authors: A
authors: Chen
authors: Krishna
authors: K
authors: Palaniappan
authors: Miriam
authors: M
authors: Land
authors: Loren
authors: L
authors: Hauser
authors: Cynthia D
authors: CD
authors: Jeffries
authors: Manfred
authors: M
authors: Rohde
authors: Stefan
authors: S
authors: Spring
authors: Sabine
authors: S
authors: Gronow
authors: John C
authors: JC
authors: Detter
authors: James
authors: J
authors: Bristow
authors: Jonathan A
authors: JA
authors: Eisen
authors: Victor
authors: V
authors: Markowitz
authors: Philip
authors: P
authors: Hugenholtz
authors: Nikos C
authors: NC
authors: Kyrpides
authors: Tanja
authors: T
authors: Woyke
authors: Hans-Peter
authors: HP
authors: Klenk
keywords: GEBA; Gram-negative; Spirochaeta; Spirochaetaceae; Treponema; chemoorganotrophic; motile; obligately anaerobic; periplasmic flagella; spiral-shaped; thermophilic
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