[Enzyme-linked immune sorbent assay for PR-toxin in taxonomical assessment of fungi belonging to the genus Penicillium Link]

The use of an indirect competitive enzyme-linked immune sorbent assay (ELISA) involving polyclonal rabbit antibodies against BSA-conjugated PR-toxin (sensitivity, 1 ng/ml) established the ability to synthesize PR-toxin in 18 out of 35 morphologically identified strains of Penicillium roqueforti and P. chrysogenum. The results indicate that ELISA for PR-toxin may be used in assessing the taxonomical position of terverticillate penicillia in the presence of other micotoxins.