Penicillium frequentans

slow-growing fungus that produces a bluish-green colony with a yellow-brown reverse, within fourteen days, when incubated at 25oC (77oF). It is a common fungus isolated worldwide from soil, plants, bird feathers, gerbils, frogs, caterpillars, wood pulp, paper, flour-based foodstuffs, bee hives, fruits, and fruit juices. It is involved in suberosis, a respiratory disease in workers in the cork industry.

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