Mold (Cladosporium spp.) hyphae and spores (conidia)
Copyright 2000 Dennis Kunkel Microscopy, Inc.
Caption: Common environmental / allergenic mold (Cladosporium spp.); fungal hyphae producing spores. Synonym - Hormodendrum. This specimen was found on the inner surface of a buildings air supply duct. This genus is the most common outdoor airborne mold but may occur in homes. It is an allergenic mold producing over 10 different types of antigens. The spores are easily made airborne and are a common cause of respiratory problems. It is frequently found at elevated levels in water-damaged environments. The genus Cladosporium includes over 30 species. The most common ones include Cladosporium elatum, Cladosporium herbarum, Cladosporium sphaerospermum (common indoors), and Cladosporium cladosporioides. Cladosporium can cause mycosis and extrinsic asthma (immediate-type hypersensitivity: type I). Acute symptoms include edema and bronchiospasms, chronic cases may develop pulmonary emphysema. Certain species cause systemic fungal infections and has been documented in cases of blastomycosis, candidiasis, chromoblastomycosis, histoplasmosis, entomophthoramycocis, onychomycosis, sinusitis, pulmonary infections, phaeophphomycocis and keratomycosis. Cladosporium spp. can also be associated with the spoilage of refrigerated meats. Magnification*: x700 Type: SEM
*(Magnifications are based on a 35mm slide image of 24mm in the narrow dimension.)