NephrotoxigenicPenicillium species occurring on farm-stored cereal grains in western Canada

Abstract
The incidence of nephrotoxigenicPenicillium species on farm-stored cereals in western Canada was determined by morphological and metabolite profile examination. Of the 142 isolates examined 102 were toxin producers with 61P. aurantiogriseum and 27P. freii. Other nephrotoxigenic species includedP. tricolor (6 isolates),P. verrucosum Chemotype II (4 isolates) andP. viridicatum Westling (4 isolates). The nephrotoxigenicPenicillium species profile for western Canada appears to differ from that of Denmark whereP. verrucosum,P. cyclopium,P. freii and, to a lesser extent,P. aurantiogriseum,P. polonicum, andP. viridicatum predominate.

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