Streptomyces anulatus (Streptomyces griseus)

An aerobic gram-positive organism that develops aerial and vegetative branched filaments. The colonies are small, leathery and have a granular, powdery or velvety appearance due to the aerial mycelium present. Colonies may be gray or yellow and produce an earthy odor. It has been isolated from soil, plants, dust, water, compost, and manure. It causes human infections following inhalation, or by contamination of an area of trauma.

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