Crosstalk of nanoparticles and phytohormones regulate plant growth and metabolism under abiotic and biotic stress

•NPs having potential to ameliorate the stress consequences with the regulation of phytohormones signaling.•NPs primarily regulate the protective responses of plants via synergistic and antagonistic actions.•It remains to be explored that how precisely NPs modulate the genes expression of phytohormones involved in plant growth.