Fungi offering resistance against plant pathogens, fusarium oxysporum
Ismaeil Musbah Al-Far
Any host and the symbiont, commensal or pathogen interaction may be beneficial, mutual or disease-causing form. As the focus is on Fusarium oxysporum (Fo) in the present paper. Fo is known for causing diseases like Wilt syndrome in plant roots, apart from this Fo can also act as root endophyte and protecting plant roots from vascular pathogens like Verticillium dahliae and other Fo strains. Endophytes maintain balance between pathogen and host either through antagonising the microbes directly or by intervening in their interaction with the host. Fo provides protection against Pythium ultimum. The endophytic strains of Fo with the differ from pathogenic strains in gene loci, colonization mechanism in host, habitat, and host-response. The endophytic and pathogenic strains interact and the induced resistance, antibiosis, mycoparasitism, competition towards the plant pathogens is been discussed in the present paper.