3-o-Methylfunicone, a Fungitoxic Metabolite Produced by the Fungus Penicillium pinophilum.

Abstract The production of 3-o-methylfunicone by Penicillium pinophilum is reported. The compound is (E)-3-methoxy-2-propenyl-5-(2′-carbomethoxy-4′-6′-dimethoxybenzoyl)-4-pyrone. It completely inhibited growth of Rhizoctonia solani and other species of phytopathogenic fungi cultured on water agar at a concentration of 0.1 mg ml−1.