Roles of Fusarium Toxins in Plant-pathogen Interaction
Scab and root rot caused by Fusarium are fungal diseases that threaten the safe production of many food crops,which can cause grain yield reduction and grain quality reduction.Fusarium infections in the field can also cause problems such as grain deterioration and toxin contamination during storage.Fusarium fulfills infection by forming infection structure,synthesizing cell wall degrading enzyme(CWDE)and toxin to resist host defense reaction and destroy plant tissue.Toxin is an important pathogenic factor of fungal pathogens.Plants bind the toxin to the matrix and pump it out of the cell to reduce the plant toxicity of the toxin through chemical modification and chemical compartmentation.The improvement and utilization of detoxification genes through cross breeding or transgenic technology is one of the effective ways to control Fusarium disease and toxin pollution.In this paper,the mechanism of secondary metabolites such as toxins in pathogen and plant interaction and disease development during infection were reviewed,which could provide a basis for plant disease resistance breeding and research,and development of new strategies for prevention and control of Fusarium disease and toxin.