It grows rapidly at 37 degrees Celsius on PDA and MEA with a flat blue green colony that can cover the plate in less than 3 days. Growth is somewhat slower at 25 degrees on PDA and MEA. On DG-18 the growth of the colony is restricted often less than 1 cm in 5 days.
Unless the actual head of the Aspergillus fumigatus spore is found on an Air-O-Cell cassette sample it is not possible to identify the spore other than to put it in the category of Aspergillus/Penicillium like organism.
The spores are small, typically less than 3 microns. The spores cover the top 2/3rds of the vesicle. The stipe of the conidiophore is smooth and often twisted.
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| Aspergillus fumigatus - line drawing - N. Carlson |
Aspergillus fumigatus - lactophenol cotton blue stain - N. Carlson
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| Aspergillus fumigatus - 25C DG-18 - N. Carlson |
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| Aspergillus fumigatus - MEA 25C in culture - N. Carlson |
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| Aspergillus fumigatus 400x 85% lactic acid stain - N. Carlson |
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| Aspergillus fumigatus 100x stereoscope lit from the side - N. Carlson |
Video on Aspergillosis by the IAQ Network
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