Adventitious sporulation in F. petroliphilum

Some strains of Fusarium species are capable of forming yeast-like synanamorphs in culture. These yeast-like structures can also be formed in infected tissues through a process described as adventitious sporulation. Fusarium petroliphilum is a recently described species in the Fusarium solani species complex. Here, we report formation of these yeast-like reproductive structures in culture as well as in infected nail tissue obtained from a case of onychomycosis caused by F. petroliphilum. The isolate was resistant to azoles and echinocandins. These findings may have implications in identification, diagnosis and pathogenesis of infections caused by this species.