Induced systemic resistance to Fusarium wilt and antioxidative ability in mycorrhizal strawberry plants.

This chapter focuses on biological control of Fusarium wilt of strawberry, caused by Fusarium oxysporum. The estimation of induced systemic resistance to Fusarium Wilt in mycorrhizal strawberry plants are described, as well as the effect of arbuscular mycorrhizal fungi (AMF) inoculation on antioxidative ability, including superoxide dismutase activity, 1,1-diphenyl-2-picrylhydrazyl radical-scavenging activity, polyphenol and ascorbic acid contents. It is shown that AMF colonization itself does not stimulate host antioxidative ability strongly before pathogen inoculation; rather, the mycorrhizal strawberry plants acquire the ability to quickly increase their antioxidative potential and maintain these higher levels after pathogen (F. oxysporum) inoculation for a long time.