Mold Characteristics

 

Zygomycosis

SUMMARY OF SPECIFIC MOLD CHARACTERISTICS

Alternaria (Potential Water Indicator Mold)

– Alternaria can grow indoors on a variety of substrates.

Amerospores (Potential Toxigenic Mold / Potential Water Indicator Mold)

– Amerospore is a general classification for non-descript, small, round spores which are unidentifiable by direct microscopic examination and can include Acremonium, Aspergillus, Penicillium, Verticillium, Tricoderma, Paecilomyces, Scytalidium, Cunninghamella, Monocillium, Gliocladium and some yeast. Aspergillus tends to colonize continuously damp materials such as damp wallboard and fabrics. Penicillium is commonly found in house dust, on water-damaged wallpaper, behind paint and in decaying fabrics. Acremonium requires very wet conditions for growth. Trichoderma grows well on paper, wood, cloth and unglazed ceramics.

Arthrinium

– Arthrinium is a widespread fungus found on plants. It is rarely found growing indoors.

Ascospores (Potential Toxigenic Mold / Potential Water Indicator Mold)

– Ascospore is a general classification for spores produced by sexual reproduction and can include Aspergillus, Penicillium, and Ascotrica. Frequently found growing on damp substrates.

Aspergillus/Penicillium-like (Potential Toxigenic Mold / Potential Water Indicator Mold)

– Aspergillus and Penicillium spores are indistinguishable via direct microscopic examination. Aspergillus tends to colonize continuously damp materials such as damp wallboard and fabrics. Penicillium is commonly found in house dust, on water-damaged wallpaper, behind paint and in decaying fabrics.

Aureobasidium (Potential Water Indicator Mold)

– Aureobasidium is commonly found in a variety of soils. Indoors, it is commonly found where moisture accumulates, especially bathrooms and kitchens, on shower curtains, tile grout, windowsills, textiles and liquid waste materials.

Basidiospores

– Basidiospore is a general classification of spore that is commonly found in gardens, forests, and woodlands. They are also agents of dry, white and brown rot.

Bipolaris/Dreschlera

– Bipolaris and Drechslera can grow on a variety of substrates.

Botrytis

– A mold that can be found associated with indoor plants.

Chaetomium (Potential Toxigenic Mold / Potential Water Indicator Mold)

– Chaetomium can be commonly found on damp sheetrock paper.

Cladosporium (Potential Water Indicator Mold)

– Cladosporium is a common outdoor mold that can colonize continuously damp materials such as damp wallboard and fabrics.

Curvularia

– Curvularia can grow on a variety of substrates.

Epicoccum

– Epicoccum tends to colonize continuously damp materials such as damp wallboard and fabrics.

Fusarium (Potential Toxigenic Mold / Potential Water Indicator Mold)

– Fusarium colonize continuously wet materials such as soaked wallboard and water reservoirs for humidifiers and drip pans.

Memnoniella (Potential Water Indicator Mold)

– Memnoniella can be found growing on a variety of cellulose-containing materials.

Nigrospora

– Nigrospora is rarely found growing indoors.

Oidium/Peronospora

– Both of these organisms are plant pathogens and cannot grow on indoor surfaces.

Pithomyces/Ulocladium (Potential Water Indicator Mold)

– Pithomyces are rarely found indoors. Ulocladium colonize continuously damp materials such as wallboard and fabrics.

Rusts

– Rusts are plant pathogens and only grow on host plants.

Smuts/Myxomycetes

– Smuts do not usually grow indoors. They are parasitic plant pathogens that require a living host. Myxomycetes are occasionally found indoors.

Stachybotrys (Potential Toxigenic Mold / Potential Water Indicator Mold)

– Stachybotrys colonizes continuously wet materials such as soaked wallboard and water reservoirs for humidifiers and drip pans.

Stemphylium

– Stemphylium is rarely found growing indoors.

Torula

– Torula can grow indoors on cellulose containing materials.

Unidentified Conidia

– An uncharacteristic fungal spore that does not lend itself to classification via direct microscopy.