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ThermoactinomycesRANK: GenusTAXONOMY: Bacteria -> Terrabacteria group -> Firmicutes -> Bacilli -> Bacillales -> Thermoactinomycetaceae -> Thermoactinomyces OVERVIEW: Aerobic, Gram-stain-positive, non-acid-fast chemo-organotroph. Aerial mycelium is abundant and white. Well-developed, branched and septate substrate mycelium is formed. Endospores are sessile and produced singly on aerial and substrate hyphae or on unbranched short sporophores. Thermophilic. Growth occurs at 55°C, but not at 30°C. Wall peptidoglycan contains meso-diaminopimelic acid but no characteristic sugars. The predominant menaquinone is MK-7. The major fatty acid is C15:0 iso; significant amounts of C17:0 iso are present. The phylogenetically nearest neighbor is the genus Laceyella. DNA G+C content (mol%): 48. Type species: Thermoactinomyces vulgaris |