Verticillium dahliae Kleb.is a typical soil-borne pathogenic fungus,and can cause Verticillium wilt on many plant species.Microsclerotia of V.dahliae are main dormant structure that enable V.dahliae to survive up to 14 years in the absence of a host.It also have strong resistance.Melanins are pigment formed by phenolic or indole compounds,also are hydrophobic biopolymers with negatively charge.Melain has a protective role in the host and in the environment.Laccases are the key enzymes of fungal melanin synt...