Pentaketide metabolites from Potebniamycesgallicola n. sp.

Abstract

The fungus Potebniamycesgallicola n. sp. has been isolated from cankered swellings of western hemlock (Tsugaheterophylla (Raf.) Sarg.) produced by the dwarf mistletoe (Arceuthobiumtsugense (Rosendahl) G. N. Jones), and has been implicated in the induction of disease in the infected trees. P. gallicola was cultured on malt extract, and four isoprenylated pentaketide metabolites were isolated by extraction; these were identified as the known compounds fuscin 1 and dihydrofuscin 2, and two related compounds secofuscin 3 and dihydrosecofuscin 4, not previously reported in nature.