1. Microbial Biostimulants in plant sciences 2. Fungi and bacteria as biostimulants for sustainable agriculture 3. Beneficial bacteria in regulating drought stress in plants 4. Beneficial bactria and fungi in regulating salinity in plants 5. Beneficial bactria and fungi in regulating extreme temperatures 6. Implication of bacterial and fungal agents in regulating acidity and alkalinity tolerance? 7. Microbial biostimulants for amelioration of metal toxicity 8. Beneficial bacteria in the regulation of nutrient homeostasis in plants 9. Role of beneficial bacteria and fungi on plants immune response 10. Modulation of gene network in plants by bacterial and fungal biostimulants 11. Role of bacteria in controlling root system behaviour 12. Phytohormone production in plants by bacteria and fungi 13. Regulation of plant metabolism by beneficial bacteria and fungi 14. Proteomic alterations in plants by beneficial bacteria and fungi 15. Role of bacteria in maintaining soil fertility 16. Effect of biostimulants on soil microbial community 17. Beneficial bacteria and fungi and biofortification of crop plants 18. Microbial biostimulants in the amelioration of climate change 19. Commercialization of microbial biostimulants for sustainable agriculture