Effects of Arbuscular Mycorrhizal Fungi on Plant Stress Resistance and Secondary Metabolite Synthesis
Arbuscular mycorrhizal(AM)is a symbiotic system composed of the fungi of the phylum Glomeromycota and plant roots.Seventy-one percent of vascular plants have AM.Glomeromycota is now under a single class,four orders,eleven families and twenty-seven genera,with about 300 species of arbuscular mycorrhizal fungi(AMF).AMF improves plant resistance to abiotic stresses such as drought,salinity,heavy metals,and biotic stresses induced by other organisms as well as regulates the synthesis of plant secondary metabolites.This article reviews the research progress on the effects of AMF on plant adversity stress and secondary metabolites.The effects of AMF on life activities such as plant morphology and structure,physiology and biochemistry,gene expression and secondary metabolism are described.The mechanism of action of AMF in enhancing plant resistance to adversity stress and regulating the synthesis of plant secondary metabolites is summarized.It aims to provide a reference for the in-depth study of the action mechanism of AMF in response to plant adversity stress and regulation of plant secondary metabolite synthesis.
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