A new phytoalexin was induced and isolated from papaya fruit slices tr
eated with copper salts; its structure was established as 3',5'-dimeth
oxy-4'-hydroxy-(2-hydroxy)ac This compound showed high antifungal acti
vity against Collerotrichum gloesporioides, a pathogenic fungus of pap
aya. Copyright (C) 1996 Elsevier Science Ltd