Isolation of viridicatin from Penicillium palitans

Summary Viridicatin, C₁₅H₁₁O₂N, has been shown to be a metabolic product of several fungi including P. palitans, P. olivino-viride, P. puberulum, P. martensii, P. crustosum, P. granulatum, and P. cyclopium. Although these strains also produce the tremorgenic mycotoxin, tremortin, no toxicity could be shown for viridicatin. Viridicatin does not appear to be a component of the tremortin molecule. A quantitative colorimetric assay has been developed for viridicatin.This is a laboratory of the Northern Utilization Research and Development Division, Agricultural Research Service, U.S. Department of Agriculture. Mention of firm names or trade products does not imply that they are endorsed or recommended by the Department of Agriculture over other firms or similar products not mentioned.