Query: NC_020210:2969862 Geobacillus sp. GHH01, complete genome
Lineage: Geobacillus; Geobacillus; Bacillaceae; Bacillales; Firmicutes; Bacteria
General Information: Recent rDNA analysis and DNA-DNA hybridization studies using spore-forming thermophilic subsurface isolates from formation waters of oilfields in Russia, Kazakhstan and China provided enough evidence to define the phylogenetically distinct, physiologically and morphologically consistent taxon Geobacillus. Geobacillus species are chemo-organotrophic, obligately thermophilic, neutrophilic, motile, spore-forming, aerobic or facultatively anaerobic.
Subject: NC_006177:2943259 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.