Recent Advances in the Study of Signal Substances in Plants Induced by Arbuscular Mycorrhizal Fungi

Abstract:

Many signal substances, such as salicylic acids (SA), jasmine acids (JA), flavonoids, NO, H2O2, etc. in plants are induced by arbuscular mycorrhizal (AM) fungi which colonize plant roots. The signal movement pathways and function mechanisms of these signals have been paid more attention to in recent years. In this review, we firstly summed up the signal substance kinds and quantities in plants inoculated with AM fungi, then discussed the signal transduction pathway, physiological effects and the related functioning mechanism in mycorrhizal plants, in order to provide a basis for the further study symbiotic relationship and mechanisms between AM fungi and plants.

Key words:Arbuscular mycorrhizal fungi, Signal substances, Signal transduction pathway, Physiological effects