Query: NC_013720:3925756 Pirellula staleyi DSM 6068, complete genome Lineage: Pirellula staleyi; Pirellula; Planctomycetaceae; Planctomycetales; Planctomycetes; Bacteria General Information: Isolation: Freshwater Lake Lansing, Michigan, USA; Temp: Mesophile; Temp: 20 - 25C; Habitat: Fresh water. Pirellula staleyi DSM 6068 is commonly isolated from freshwater environments. Pirellula staleyi is a pear-shaped bacterium having a life cycle consisting of an aggregate-forming sessile (non-motile) form and a motile swarmer cell. They have a pirellulosome, a large nucleoid-containing cellular compartment, which is surrounded by a single membrane.
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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.