Query: NC_015707:1911431 Thermotoga thermarum DSM 5069 chromosome, complete genome
Lineage: Thermotoga thermarum; Thermotoga; Thermotogaceae; Thermotogales; Thermotogae; Bacteria
General Information: Country: Djibouti; Isolation: Continental solfataric spring; Africa; Temp: Hyperthermophile; Temp: 80C. This organism, a member of the Thermotogales, has the characteristic morphology of one or more cells contained in a sheath-like envelope which extends beyond the cell wall. Preliminary sequencing of Thermotogales genomes has identified extensive horizontal gene transfer between these organisms and the Archaea. Thermotoga thermarum does not grow at high salt concentrations (>0.6% NaCL). This organism also produces heat stable enzymes such as endoxylanase, beta xylosidase and alpha arabinofuranosidase which may have commercial uses.
Subject: NC_006177:835459 Symbiobacterium thermophilum IAM 14863, complete genome
Lineage: Symbiobacterium thermophilum; Symbiobacterium; Shewanellaceae; Clostridiales; Firmicutes; Bacteria
General Information: This symbiotic and thermophilic bacterium was discovered by screening for thermostable tryptanophases in Japanese compost. Cultured growth of this organism requires the presence of another bacterial species, such as a Bacillus or Escherichia coli, which provides diffusable metabolites required for its growth. Pure cultures can be obtained by growing Symbiobacterium thermophilum in a bioreactor, separated from its symbiotic counterpart by a dialysis membrane. Because of its symbiotic nature, it cannot be cultured with conventional methods. Despite a negative reaction for gram stain, this species is placed with the gram-positive bacteria based on 16s phylogenetic analysis.