Penicillium sp.

Aw 0.78 - 0.88 (5) A wide number of organisms have placed in this genera. Identification to species is difficult. Often found in aerosol samples (17). Commonly found in soil, food, cellulose and grains (17, 5). It is also found in paint and compost piles. (5) It may cause hypersensitivity pneumonitis, allergic alveolitis in susceptible individuals. It is reported to be allergenic (skin) (7, 17). It is commonly found in carpet, wall paper, and in interior fiberglass duct insulation (NC). Some species can produce mycotoxins. Common cause of extrinsic asthma (immeadiate-type hypersensitivity: type I) (26). Acute symptoms include edema and bronchiospasms, chronic cases may develop pulmonary emphysema (26).

Penicillium culture plates were graciously provided by John I. Pitt, Commonwealth and Industrial Research Organization, Division of Food Processing, North Ryde, New South Wales, Australia.

Photos taken at April 2000 workshop, New Orleans. The following is a color appendix to A Laboratory Guide to Common Penicillium Species By John I. Pitt Food Science Australia, North Ryde, NSW 2113, Australia Third edition published by Food Science Australia, March, 2000. 197 pp. ISBN 0-643-04837-5.

For ordering details, view A Laboratory Guide to Common Penicillium Species publication website or email John Pitt at John.Pitt@csiro.au.

Due to lighting at the workshop and color settings that vary by computer, some distortions in actual color may occur.

Culture Photo List
Penicillium aurantiogroseum Penicillium glandicola Penicillium pinophilum
Penicillium bilaii Penicillium griseofulvum Penicillium purpurogenum
Penicillium brevicompactum Eupenicillium hirayamae Penicillium raistrickii
Penicillium camemberti Penicillium hirsutum Penicillium restrictum
Penicillium canescens Penicillium implicatum Penicillium roqueforti
Penicillium chrysogenum Penicillium islandicum Penicillium sclerotiorum
Penicillium citrinum Penicillium italicum Eupenicillium shearii
Penicillium commune Penicillium janczewskii Penicillium simplicissimum
Penicillium corylophilum Penicillium janthinellum Penicillium solitum
Penicillium crustosum Eupenicillium javanicum Talaromyces stipitatus
Penicillium decumbens Penicillium lividum Penicillium thomii
Penicillium digitatum Penicillium melinii Penicillium variabile
Penicillium duclauxii Penicillium miczynskii Penicillium verrucosum
Penicillium expansum Penicillium minioluteum Penicillium verruculosum
Penicillium fellutanum Eupenicillium ochrosalmoneum Penicillium viridicatum
Talaromyces flavus Penicillium olsonii Penicillium vulpinum
Penicillium funiculosum Penicillium oxalicum Penicillium waksmanii
Penicillium glabrum Penicillium paxilli Talaromyces wortmannii

Mold Reference Key

Abbreviation Reference
Aw Water Activity (Equilibrium relative humidity/100)
E Paul Ellringer
MAC McGregor Pearce - personal experience
NC Neil Carlson - personal experience
(1-27) Refer to Fungal Reference page

N. Carlson 9/92; Rev. 4/93, 7/93, 9/93, 1/94, 2/94,2/95,4/95, 5/96, 7/96

Penicillium sp.
Penicillium sp.
Penicillium sp.
Penicillium sp.
Penicillium sp.
Penicillium sp.