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Botrytis sp.

Mitosporic fungus. Hyphomycetes. Teleomorph (sexual state): Botryotinia (Ascomycete).
Distribution Where Found Mode of Dissemination
Ubiquitous.
Primarily in temperate and subtropical regions.
Approx. 30 species.
Soil, stored and transported fruit and vegetables. Plant pathogen and saprophyte on flowers, leaves, stems, fruit. Leaf rot on grapes, strawberries, lettuce, cabbage, onions. Dry spore.
Wind.
Also liberated by rain splash.
Allergen Potential Opportunist or Pathogen Potential Toxin Production
Type I allergies (hay fever, asthma).
Type III hypersensitivity pneumonitis: Winegrower's lung.
Very rare agent of keratomycosis. No recorded human cases of infection. None known.
Growth Indoors Industrial Uses Other Comments
May be found in conjunction with indoor plants.
Aw=0.93-0.95 (minimum for various species).
None known. Mostly parasitic on higher plants.
"Gray-mold," called "noble rot" on wine grapes.
Characteristics: Growth/Culture Notes on Spore Trap Recognition Notes on Tape Lift Recognition
Grows well on all general fungal media. Colony spreads easily over the surface of the petri dish. May form black sclerotia. Fairly distinctive, frequently with a visible inner cell wall, and an attachment point at one end. Spores are slightly pigmented. Distinctive, especially if spore bearing structures are present.
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