**5. Conclusion**

Schiff bases have been widely used in various organic transformations and for industrial applications. However, further investigation is required about the biological activity of this class of compound. This becomes clear when plant pathogens are considered. Recently, there is an increase in the number of reports including the effects of the Schiff bases on the pathogens of clinical interest. The promising leads for the design of more efficient antimicrobial agents have been shown by Schiff base compounds. Analyses of the mechanism of action of these compounds as well as the structureactivity relationships of the Schiff bases require advanced research in this field.
