|Description:||Under a magnification of 970X, this photomicrograph reveals ultrastructural morphology exhibited by the fungal organism, Penicillium multicolor, highlighting the anatomical configuration of two conidiophores, each topped by a characteristic, brush-shaped cluster of conidia, i.e., spores, known as a “penicillus” (pl. penicilli). See PHIL 12531, for a macroscopic view of a P. multicolor fungal colony.|
The blue-green molds of Penicillium are common contaminants of indoor environments. Penicillium infections of clinical importance are very rare, although this mold has been associated with asthma and hypersensitivity pneumonitis, being that the inhalation of airborne spores is the major route of entry.