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The aryltetralin lactone podophyllotoxin, which exhibits pronounced antineoplastic activity, is used as the precursor of the following three clinical anticancer drugs: Etoposide™, Etopophos™ and Teniposide™. The natural occurrence of this arylnaphthalene lignan is scarce and unable to meet the ever-rising demand in the medical industry. Thus, developing alternative sources for the production of podophyllotoxin is extremely urgent. This is the first report of the production of podophyllotoxin from endophytic  Alternaria tenuissima  isolated from  Sinopodophyllum emodi  (Wall.) Ying. The identification of podophyllotoxin was performed using high-performance liquid chromatography and liquid chromatography–mass spectrometry (MS)-MS and confirmed by comparison with authentic standards.

Endophytic Fungus from Sinopodophyllum emodi (Wall.) Ying that Produces Podophyllotoxin