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StreptosporangiumRANK: GenusTAXONOMY: Bacteria -> Terrabacteria group -> Actinobacteria -> Actinobacteria -> Streptosporangiales -> Streptosporangiaceae -> Streptosporangium OVERVIEW: Aerobic, Gram-stain-positive, non-acid-fast actinomycetes which form a branched, stable, non-fragmenting mycelium bearing aerial hyphae that differentiate into globose or spherical spore vesicles. Oval, spherical, or rod-shaped, nonmotile sporangiospores are formed by septation of a single, coiled, unbranched hypha within the spore vesicle. Grows on a variety of organic and synthetic media. Biochemically versatile and chemically homogeneous. Whole-organism hydrolysates contain meso-diaminopimelic acid and usually madurose. The peptidoglycan is of the A1γ type. Muramic acid moieties are N-acetylated. Cells contain major amounts of iso-, anteiso-, saturated, unsaturated, and 10-methyl-branched fatty acids, and MK-9(H2) and MK-9(III, VIII-H4) as the predominant isoprenologues. Mycolic acids are absent. Major phospholipids include diphosphatidylglycerol, phosphatidylethanolamine, phosphatidylglycerol, phosphatidylinositol, and glucosamine-containing phospholipids. The phylogenetic position of the genus Streptosporangium, as determined by 16S rRNA gene sequence analysis, is in the family Streptosporangiaceae. DNA G+C content (mol%): 69–71. Type species: Streptosporangium roseum |