Plant Induced Defense and Biochemical Mechanisms

This paper reviewed new advances in plant induced disease and insect defense,and their involved signal transduction pathways.Herbivore-induced plant volatiles play a vital role in mediating tri-trophic interactions among host plants,herbivores and herbivore natural enemies.One of the most important mechanisms of induced disease defense is the induction of the production of phytoalexins.Mycorrhizas,the symbiotic relationships between fungi and plant roots,also induce plant disease defense and phytoalexin accumulation.In-depth research on plant induced defense mechanisms will lay a good foundation for establishing optimal strategies of disease and pest control and breeding new crop varieties with broad and sustainable resistance.An ideal approach to control pests and disease of crops is to use plant self-defense system.